RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RADIO NETWORK PARAMETERS &
CELL DESIGN DATA FOR ERICSSON’S GSM
SYSTEMS
Contents
1
INTRODUCTION ....................................................................................................................................3
1.1
1.2
2
SITE DATA ...............................................................................................................................................7
2.1
3
COMMON SITE DATA ..............................................................................................................................7
CELL DATA .............................................................................................................................................8
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
3.23
3.24
3.25
3.26
3.27
3.28
3.29
3.30
3.31
3.32
4
CDD STRUCTURE...................................................................................................................................4
CONVENTIONS........................................................................................................................................4
COMMON DATA ......................................................................................................................................8
NEIGHBOURING CELL RELATION DATA .................................................................................................27
IDLE MODE BEHAVIOUR .......................................................................................................................30
LOCATING ............................................................................................................................................46
CHANNEL ADMINISTRATION/IMMEDIATE ASSIGNMENT ON TCH ..........................................................76
GPRS/EGPRS CHANNEL ADMINISTRATION .........................................................................................83
DYNAMIC MS POWER CONTROL..........................................................................................................90
GPRS/EGPRS DYNAMIC MS POWER CONTROL .................................................................................94
DYNAMIC BTS POWER CONTROL .........................................................................................................95
DISCONTINUOUS TRANSMISSION ........................................................................................................100
FREQUENCY HOPPING.........................................................................................................................101
MAIO MANAGEMENT .......................................................................................................................104
INTRA CELL HANDOVER .....................................................................................................................106
ASSIGNMENT TO OTHER CELL.............................................................................................................111
OVERLAID/UNDERLAID SUBCELLS / SUBCELL LOAD DISTRIBUTION ...................................................113
HIERARCHICAL CELL STRUCTURES .....................................................................................................117
EXTENDED RANGE .............................................................................................................................122
DOUBLE BA LISTS..............................................................................................................................124
IDLE CHANNEL MEASUREMENTS ........................................................................................................126
CELL LOAD SHARING ..........................................................................................................................128
MULTIBAND OPERATION ....................................................................................................................131
DIFFERENTIAL CHANNEL ALLOCATION ..............................................................................................134
ENHANCED MULTI-LEVEL PRECEDENCE AND PRE-EMPTION SERVICE (EMLPP) ...............................144
ADAPTIVE CONFIGURATION OF LOGICAL CHANNELS .........................................................................148
GSM - UMTS CELL RESELECTION AND HANDOVER .........................................................................149
ADAPTIVE MULTI RATE .....................................................................................................................158
LINK QUALITY CONTROL IN ENHANCED GPRS..................................................................................158
GPRS LINK ADAPTATION ..................................................................................................................160
GPRS/EGPRS QUALITY OF SERVICE.................................................................................................161
INTERFERENCE REJECTION COMBINING .............................................................................................163
MULTI BAND CELL.............................................................................................................................163
GPRS/EGPRS CONNECTION CONTROL AND TRANSFER ...................................................................164
HARDWARE CHARACTERISTICS.................................................................................................166
4.1
ALLOCATION DATA FOR TRANSCEIVER GROUP ...................................................................................166
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5
CDD FORMS ........................................................................................................................................174
6
INDEXES...............................................................................................................................................180
6.1
6.2
6.3
INDEX TO PARAMETERS......................................................................................................................189
INDEX TO COMMANDS ........................................................................................................................193
CROSS-REFERENCE: MML-COMMAND PARAMETERS .........................................................................195
7 NEW / REMOVED / CHANGED PARAMETERS IN ERICSSON’S GSM SYSTEM R10 /
BSS R10 .........................................................................................................................................................198
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1
INTRODUCTION
The present document explains the Cell Design Data (CDD) that must be
provided for each cell in an Ericsson GSM system, R10. This data is loaded in
the corresponding BSC by means of a Data Transcript file.
When a new Ericsson GSM system is built or when new cells are added or
changed in an existing Ericsson GSM system, the cell planner provides the
operator with a document for each cell containing data for the insertion of the
cell in the radio network. The data from all such documents is then converted
into a data transcript tape and loaded into the corresponding BSC.
A data transcript tape contains not only CDD information but also other data
needed for the complete configuration of the BSC and its BTSs. A description
of such information is out of the scope of this document.
In addition to the above-mentioned BSC cell parameters, some of the radio
related MSC parameters and exchange properties are included in this
document. These parameters are included in order to present a more complete
picture of the parameters that influence the design and evaluation of a radio
network.
Note: The MSC parameters are only defined for Ericsson Mobile Services
Switching Centres. These parameters may have another name or may not exist
at all in MSC’s manufactured by others than Ericsson.
This document gives references to GSM Recommendations.
This document provides short descriptions of Ericsson’s GSM system R10
parameters. For a full understanding of each of them, it is essential to study
the description of each particular feature. It should be noted that the
availability of a feature could depend on commercial agreements. Due to this
it is possible that certain parameters are not supported by an exchange.
The topics where GSM 800, GSM 900, GSM 1800 and GSM 1900 differ are
indicated.
This document assumes that the reader is acquainted with the channel
structure for GSM 800, GSM 900, GSM 1800 and GSM 1900, the TDMA
concept and the locating algorithm for Ericsson’s GSM systems.
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1.1
CDD structure
The parameters in this document are organised according to radio network
features. The aim with this structure is to facilitate a more feature oriented cell
planning and network optimisation.
In each radio network feature section, the parameters are grouped into subsections defined by the network entity where the parameter is defined. This is
described more elaborately in section 1.2.
The CDD is also arranged in a structure that corresponds to the subcell
structure shown in figure 1. Therefore some parameters appear in more than
one part of the CDD.
Cell
Underlaid
Subcell
Channel
group
...
Overlaid
Subcell
Channel
group
Channel
group
Figure 1
...
Channel
group
The subcell structure supported by Ericsson’s GSM system.
A subcell is a set of channels that share some specific characteristics. An
overlaid subcell serves a smaller part of the area of an underlaid subcell.
A cell always has an underlaid (UL) subcell, whereas the overlaid (OL)
subcell is optional. A subcell structure exists when there is an overlaid subcell
defined. The notation “cell/subcell data” (see section 1.2) is used in order to
clarify that these parameters may be defined per subcell.
Each subcell is divided into channel groups, which include a subset of the
frequencies defined for a cell. A channel group can not be shared between
different subcells. One frequency can be defined in only one channel group
within the cell.
1.2
Conventions
In this section, rules and conventions for the parameter section in the CDD
document are issued.
“The parameter is /valid for/set per/ XXXX”
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MSC
The parameter is valid for all cells in the MSC.
BSC
The parameter is valid for all cells in the BSC.
BSC exchange property
The exchange properties are changed by means of
a generic command, but they are essentially the
same as regular parameters.
Cell
The parameter is valid for both UL and OL
subcell, if there is a subcell structure defined.
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Cell/Subcell
The parameter may be defined individually for UL
and OL subcells, in case there is a subcell structure
defined. Otherwise, they are defined per cell.
Neighbour Cell
The parameter need to be defined for internal
neighbour cells.
External Cells
See section 3.2.3
“Name of the parameter”, e.g. BSPWRB, DCASTATE, MSC NAME
If bold:
BSC command parameters are written with capital
letters and are bold-faced.
If plain text:
A “state variable” corresponding to a state of a
feature in the BSC/Cell, e.g. ACTIVE/INACTIVE.
The state variable is not a parameter and the state
variable is changed with a command.
If plain text in Italics:
This parameter has no corresponding name in the
BSC command descriptions and the string has no
equivalence/meaning elsewhere in the system.
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Description items
Type:
String, Numeral or Identifier. Format in the database.
Range:
The value range of the parameter.
Unit:
E.g. dB, dBm, ARFCN (Absolute radio Frequency Channel
Number), deci hours etc.
Default:
This is the BSC default value.
Command:
The parameter is initiated/affected/printed by this/these MML
commands.
Different types of commands:
xxxxI: Initiate.
xxxxC: Change.
xxxxE: End.
xxxxP: Print.
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O&M:
Possible impact of the parameter change to the service state.
Comments:
Clarifying notes about the parameter.
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2
SITE DATA
2.1
Common site data
The common site data is the same for all cells in a site.
RSITE
Type:
String.
Range:
3 to 15 characters.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMSC, RXMOP.
O&M:
–
Comments:
Radio Site. Identity of the radio site where the transceiver group
(TG) is located.
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3
CELL DATA
3.1
Common data
3.1.1
BSC data
DL
Type:
Numeral.
Range:
−12 to 12.
Unit:
dB.
Default:
0.
Command:
RRLLC, RRLLP.
O&M:
–
Comments:
Downlink Line level. The parameter is represented by DLN, if
the value is in the range (−12, 0) dB. Positive values, (0, 12) dB,
is represented by DLP.
UL
3.1.2
Type:
Numeral.
Range:
−12 to 12.
Unit:
dB.
Default:
0.
Command:
RRLLC, RRLLP.
O&M:
–
Comments:
Uplink Line Level. The parameter is represented by ULN, if the
value is in the range (−12, 0) dB. Positive values, (0, 12) dB, is
represented by ULP.
Cell data
BSPWRB
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Type:
Numeral.
Range:
0 to 63.
Unit:
dBm.
Default:
–
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Command:
RLCPC, RLCPP.
O&M:
In some cases it is possible to set this parameter to a non-valid
value (as described in the comment below). Then, the activation
of the channel group might not be able to perform correctly.
Comments:
Base Station output power in dBm for the BCCH RF channel
number.
The BTS can transmit with different power levels on the
frequency that carries the BCCH and on the frequencies that do
not carry it. The power is specified at the Power Amplifier (PA)
output, i.e. immediately after the transmitter unit and before the
combiner.
For RBS 200 the following is valid:
GSM 900:
GSM 1800:
31 to 47 dBm, odd values only
33 to 45 dBm, odd values only.
For RBS 2000 macro the following is valid:
GSM 800:
GSM 900:
GSM 1800:
GSM 1900:
35 to 47, 491), 512) dBm, odd values only
35 to 47, 491), 512) dBm, odd values only
33 to 45, 471), 492) dBm, odd values only
33 to 45, 471), 492) dBm, odd values only.
Note: For GSM 900 - TRU: KRC 131 47/01, the range is 31 to
43 dBm. If one or more GSM TRU type KRC 131 47/01 is used
within one cell the maximum output power for that cell shall be
limited to 43 dBm. To ensure that, the parameter MPWR (see
page 172) shall be set to 43 dBm for all TXs on that cell.
For RBS 2000 micro the following is valid:
GSM 800 (2308 only):21 to 33, 351) dBm, odd values only
21 to 33, 351) dBm, odd values only
GSM 900:
21 to 33, 351) dBm, odd values only
GSM 1800:
GSM 1900:
21 to 33, 351) dBm, odd values only.
For RBS 2401 indoor the following is valid:
GSM 900:
GSM 1800:
GSM 1900:
7 to 19 dBm, odd values only
9 to 21 dBm, odd values only
9 to 21 dBm, odd values only.
1)
Software Power Boost (not applicable for RBS 2401):
The feature Software Power Boost is activated by setting
BSPWRB to a special value that is 2 dB higher than the
maximum possible power at the PA output. TX diversity is used
and each TX supporting the master-slave configuration is
configured. A BTS with filter combiner does not support
Sofware Power Boost.
2)
Transmitter Coherent Combining:
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The feature Transmitter Coherent Combining (TCC) is activated
by setting BSPWRB to a special value that is 4 dB higher than
the maximum possible power at the PA output. TCC is
applicable to RBS 2106 and 2206 only.
CELL
Type:
String.
Range:
1 to 7 characters except ALL.
Unit:
–
Default:
–
Command:
All commands where a specific cell is pointed out.
Cell definition: RLDEI.
O&M:
–
Comments:
Cell name. It is recommended to use the name of the site plus
one more character that identifies the cell within the site. The
best choice for this character is a number (1,2,3...) or a letter
(A,B,C...) identifying the antenna pointing direction of the cell.
The 0 (zero) degrees true north direction can be taken as a
reference. The cell whose antenna direction is closest to the
reference direction when counting clockwise, should be
assigned letter A (or number 1).
NEWNAME
Type:
String.
Range:
1 to 7 characters except ALL.
Unit:
–
Default:
–
Command:
RLDEC.
O&M:
If the cell is an internal cell, the parameter is only allowed to be
changed in cell state HALTED.
Comments:
The parameter is used to change the name of a cell. See
parameter CELL for recommendations.
CGI
10(198)
Type:
MCC-MNC-LAC-CI.
Range:
MCC: 3 digits (Mobile Country Code).
MNC: 2 or 3 digits, depending on MNCDIGITHAND, (see0),
(Mobile Network Code).
LAC: 1 to 65535 (Location Area Code).
CI:
0 to 65535 (Cell Identity).
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Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
O&M:
If the cell is an internal cell, the parameter is only allowed to be
changed in cell state HALTED.
Comments:
CGI (Cell Global Identity) is the global identity of the cell in
the whole system. It is composed of four different parameters:
MCC, Mobile Country Code,
MNC, Mobile Network Code identifying the PLMN (Public
Land Mobile Network, i.e. the operator),
LAC, Location Area Code,
CI,
Cell Identity within the location area.
CGI is sent to the mobile station (MS) as a part of the system
information message (GSM Rec. 04.08). The combination
MCC-MNC-LAC is also known as the location area identity
(LAI).
BSIC
Type:
NCC-BCC.
Range:
NCC: 0 to 7 (Network Colour Code).
BCC: 0 to 7 (Base station Colour Code).
Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
O&M:
If the cell is an internal cell, the parameter is only allowed to be
changed in cell state HALTED.
Comments:
BSIC (Base Station Identity Code) is composed of two entities:
NCC
Network Colour Code.
BCC
Base station Colour Code,
BSIC is defined on a per cell basis and it is sent on the logical
synchronisation channel (SCH) on the BCCH frequency.
GSM 03.03, Annex A, assigns one NCC value "n" to each
European country "to ensure that the same NCC is not used in
the adjacent PLMNs". A second operator in a given country
would use the NCC value "n+4".
When an MS reports the results of the measurements made on
the serving cell and the neighbouring cells, it indicates
(GSM 04.08, section 10.5.2.20):
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The measured signal levels on the serving cell.
The measured levels, the BSIC and the BCCH frequency of the
neighbouring cells.
Only measurements from cells with allowed NCC are reported
(see section 0).
The colour code NCC is then used to discriminate cells that use
the same frequency. Though mainly intended for the purpose of
differentiating PLMNs, it also serves to distinguish cells within
one PLMN that use the same frequency provided they have been
assigned different NCC. If there are two operators in a country,
they can use more than two PLMN colour codes each one,
provided that in border areas only the values "n" and "n+4" are
used.
What is stated here should be considered as general guidelines.
Of course any type of NCC assignment must be decided by
agreements between operators and countries.
Regarding the protection against co-channel interference, the
MS reports the BCC value so that the BSC can distinguish
among different cells transmitting on the same frequency. For
this purpose the BCC must be allocated as wisely as possible. If
frequency reuse clusters are used then it is recommended that all
BTSs in a given cluster use the same BCC. In this way the reuse
distance of a certain BCC can be maximised according to the
frequency reuse distance.
Note that only 8 different values (BCC: 0 to 7) are used for the
purpose of recognising co-channel interference.
BCCHNO
Type:
Numeral.
Range:
128 to 251 (GSM 800).
1 to 124 (GSM 900, P-band).
0, 975 to 1023 (GSM 900, G1-band).512 to 885 (GSM 1800).
512 to 810 (GSM 1900).
Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
O&M:
-
Comments:
Absolute RF channel number for BCCH.
Absolute RF channel number already defined for a dedicated
channel can not be used.
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The frequency carrying the BCCH (Broadcast Control Channel)
in a cell, is defined by the Absolute Radio Frequency Channel
Number, ARFCN, with the parameter BCCHNO. The defined
ARFCN must be unique within the cell.
According to the GSM 800 recommendations the channels are
numbered as follows:
fl(n) = 824.2 + 0.2*(n−128) in MHz, where n (Absolute Radio
Frequency Channel Number, ARFCN) goes from 128 to 251
and fl is a frequency in the lower band, BTS receiver.
fu(n) = fl(n) + 45 in MHz, where n goes from 128 to 251 and fu is
a frequency in the upper band, BTS transmitter.
According to the GSM 900 recommendations the channels are
numbered as follows:
fl(n) = 890.2 + 0.2*(n−1) in MHz, where n (Absolute Radio
Frequency Channel Number, ARFCN) goes from 1 to 124 and fl
is a frequency in the lower band, BTS receiver.
fu(n) = fl(n) + 45 in MHz, where n goes from 1 to 124 and fu is a
frequency in the upper band, BTS transmitter.
According to the GSM 1800 recommendations the channels are
numbered as follows:
fl(n) = 1710.2 + 0.2*(n−512) in MHz, where n (Absolute Radio
Frequency Channel Number, ARFCN) goes from 512 to 885
and fl is a frequency in the lower band, BTS receiver.
fu(n) = fl(n) + 95 in MHz, where n goes from 512 to 885 and fu is
a frequency in the upper band, BTS transmitter.
According to the GSM 1900 recommendations the channels are
numbered as follows:
fl(n) = 1850.2 + 0.2*(n−512) in MHz, where n (Absolute Radio
Frequency Channel Number, ARFCN) goes from 512 to 810
and fl is a frequency in the lower band, BTS receiver.
fu(n) = fl(n) + 80 in MHz, where n goes from 512 to 810 and fu is
a frequency in the upper band, BTS transmitter.
BCCHTYPE
Type:
Identifier.
Range:
COMB, COMBC, NCOMB.
Unit:
–
Default:
NCOMB.
Command:
RLDEC, RLDEP.
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O&M:
The parameter is only allowed to be changed in cell state
HALTED.
Comments:
Type of BCCH.
COMB
indicates that the cell has a combined BCCH and
SDCCH/4 (see section 0).
COMBC
indicates that the cell has a combined BCCH and
SDCCH/4 with a CBCH subchannel.
NCOMB
indicates that the cell does not have any type of
combined BCCH and SDCCH/4.
The BCCH is always allocated to time slot number 0 (TN0) in
the defined ARFCN.
The CBCH is used for transmission of the messages when the
function Short Messages Service Cell Broadcast (SMSCB) is
activated in the cell. SMSCB enables the operator to submit
short messages for broadcasting to a specific area within the
PLMN.
AGBLK
Type:
Numeral.
Range:
0 to 7 if non-combined BCCH is used.
0 to 2 if combined BCCH and SDCCH/4 is used.
Unit:
–
Default:
1
Command:
RLDEC, RLDEP.
O&M:
The parameter is only allowed to be changed in cell state
HALTED.
Comments:
Number of reserved access grant blocks.
Number of CCCH blocks reserved for the access grant channel.
The remaining CCCH blocks are used for the paging channel.
In each downlink non-combined SDCCH 51 frames multiframe
there are 9 different CCCH blocks and in the combined
BCCH/SDCCH there are 3 different blocks. They can be used
to:
• Send paging messages, i.e. used as a Paging Channel.
• Send access granted messages, i.e. used as an Access Grant
Channel.
After an MS tunes to the BCCH/CCCH channel and decodes the
System Information, it performs an evaluation that, taking into
account the MS's own IMSI (International Mobile Station
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Identity) number, determines to which particular CCCH block in
the physical channel it should listen (GSM 05.02). Every CCCH
in the physical channel (Paging Subchannel) sends paging
messages to a certain group of MSs that are called its paging
group. The reason for the existence of such paging groups is that
the MSs can save batteries because it only needs to listen to its
own Paging Subchannel messages.
The physical channel (Paging Subchannel) sends paging
messages to a certain group of MSs. As mentioned before these
very same CCCH blocks are also used to send Access Grant
messages to the MSs, i.e. to answer a Random Access message
that an MS wanting to access the system has sent to the system.
The structure of the BCCH regarding Paging messages and
Access Grant messages can be controlled by the two parameters
AGBLK and MFRMS.
AGBLK tells how many of the CCCH blocks that should be
reserved for the Access Grant messages. In Ericsson’s GSM
system, Access Grant messages are given priority over Paging
messages. Together with MFRMS, AGBLK indicates how
many paging groups there will be.
With a non-combined BCCH and AGBLK = 1, there are 8
CCCH blocks in each multiframe. This means that it is possible
to have 16 to 72 different Paging Subchannels, i.e. Paging
Groups. (Since MFRMS can take values between 2 and 9.)
With a combined BCCH/SDCCH and AGBLK = 1, there are 2
CCCH blocks in each multiframe. In this case it is possible to
have 4 to 18 different Paging Groups.
Note 1:
AGBLK must not be 0 when SI 7 and 8 have to be sent or when
short message service cell broadcast (SMSCB) is in use on a
cell not using combined BCCH and SDCCH/4 (GSM 05.02).
Note 2:
Only AGBLK = 0 and 1 is supported by the RBS 200 and RBS
2000 series BTS.
MFRMS
Type:
Numeral.
Range:
2 to 9.
Unit:
CCCH multiframes.
Default:
6.
Command:
RLDEC, RLDEP.
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O&M:
The parameter is only allowed to be changed in cell state
HALTED.
Comments:
Multiframes period. Defines period of transmission for
PAGING REQUEST messages to the same paging subgroup.
Together with AGBLK, MFRMS determines the number of
paging groups.
MFRMS is also used by the MS to determine downlink
signalling failure in idle mode (GSM 05.08). The downlink
signalling failure criterion is based on the downlink signalling
failure counter DSC. When the MS camps on a cell, DSC shall
be initialised to a value equal to the nearest integer to 90/N
where N is the MFRMS parameter for that cell. Thereafter,
whenever the MS attempts to decode a message in its paging
subchannel; if a message is successfully decoded DSC is
increased by 1, (however never beyond the nearest integer to
90/N), otherwise DSC is decreased by 4. When DSC reaches 0,
a downlink signalling failure shall be declared. A downlink
signalling failure shall result in cell reselection.
MFRMS is also used by the MS to control monitoring of
received BCCH carrier level (GSM 05.08). Whilst in idle mode
an MS shall continue to monitor all BCCH carriers as indicated
in the BCCH allocation list (BA list). A running average of
received level in the preceding 5 to
Max{5, ((5*N+6) div 7)*MFRMS/4}
seconds shall be maintained for each carrier in the BCCH
allocation. N is the number of non-serving cell BCCH carriers in
BA.
FNOFFSET
Type:
Numeral.
Range:
0 to 1325.
Unit:
TDMA frames.
Default:
0.
Command:
RLDEC, RLDEP.
O&M:
The parameter is only allowed to be changed in cell state
HALTED.
Comments:
Frame Number Offset.
Indicates the time difference from the FN generator in the BTS.
To prevent that all cells on a site send BCCH channels at the
same time it is possible to define a deviation with respect to the
FN generator called FNOFFSET. By using FNOFFSET on a
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synchronised two or three sector site the time for decoding
BSIC can be reduced.
Note:
The RBS2000 and RBS200 only support the range 0 to 1023.
The parameter is only allowed to be changed in cell state
HALTED.
ECSC
Type:
Identifier.
Range:
NO, YES.
Unit:
–
Default:
NO.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Early Classmark Sending Control. Indicates if an MS in the cell
is allowed to use early classmark sending.
NO
YES
Early sending is not allowed.
Early sending is allowed.
Note: The parameter ECSC has to be set to YES in order to
allow the MS to send the MS multiband and/or multislot
capability. No multiband or multislot configuration will be
established unless the MS capability is known.
SCTYPE
Type:
Identifier.
Range:
UL, OL.
Unit:
–
Default:
–
Command:
Every command where subcell type need to be defined.
A subcell structure is defined by the command RLDSI.
O&M:
–
Comments:
Subcell type.
UL
OL
The subcell type is underlaid.
The subcell type is overlaid.
A subcell structure can only be defined for an internal cell.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.1.3
BSC exchange property data
MNCDIGITHAND
Type:
Numeral.
Range:
0 to 2
Unit:
−
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Indicates how the BSC handles MNC.
0:
1:
2:
2-digit MNC administered and sent, all cases.
3-digit MNC administered and sent on the A-interface
and Gb-interface and 2-digit MNC is sent on the airinterface.
3-digit MNC administered and sent, all cases.
If the value is 1 then the third MNC digit must have the value
zero.
Changing of the value from 2 to a lower value is only allowed if
the third MNC digit is zero in all defined cells. If any cell exists
with an MNC with the third digit not equal to zero, then this cell
must be undefined before the property value can be changed
from 2 to a lower value.
3.1.4
Cell/subcell data
These parameters may be defined different for underlaid and overlaid
subcells. In case there is no subcell structure defined, they are defined per cell.
TSC
18(198)
Type:
Numeral.
Range:
0 to 7.
Unit:
–
Default:
Base station colour code (BCC) part of the BSIC.
Command:
RLDTC, RLDTP.
O&M:
The parameter is only allowed to be changed when all channel
groups within the subcell are in the state HALTED.
Comments:
Training Sequence Code.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
The Training Sequence Code can only be changed for cells with
a subcell structure.
It is possible to change the TSC in a subcell (OL or UL)
independently of the other subcell to be able to have different
TSCs in the overlaid and underlaid subcells. However, it is
recommended not to change TSC in UL subcells.
MSTXPWR
Type:
Numeral.
Range:
13 to 43 (GSM 800) odd values only.
13 to 43 (GSM 900) odd values only.
4 to 30 (GSM 1800) even values only.
4 to 30 (GSM 1900) even values only.
Unit:
dBm.
Default:
–
Command:
RLCPC, RLCPP.
O&M:
–
Comments:
Maximum transmit power for MS on connection.
BSPWRT
Type:
Numeral.
Range:
0 to 63.
Unit:
dBm.
Default:
–
Command:
RLCPC, RLCPP.
O&M:
In some cases it is possible to set this parameter to a non valid
value (as described in the comment below). Then, the activation
of the channel group might not be able to perform correctly.
Comments:
Base Station output power in dBm for the non-BCCH RF
channel numbers.
The power is specified at the Power Amplifier (PA) output, i.e.
immediately after the transmitter unit and before the combiner.
For RBS 200 the following is valid:
GSM 900:
GSM 1800:
31 to 47 dBm, odd values only
33 to 45 dBm, odd values only
For RBS 2000 macro the following is valid:
GSM 800:
GSM 900:
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35 to 47, 491), 512) dBm, odd values only
35 to 47, 491), 512) dBm, odd values only
19(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
GSM 1800:
GSM 1900:
33 to 45, 471), 492) dBm, odd values only
33 to 45, 471), 492) dBm, odd values only.
Note: For GSM 900 - TRU: KRC 131 47/01, the range is 31 to
43 dBm. If one or more GSM TRU type KRC 131 47/01 is used
within one cell the maximum output power for that site shall be
limited to 43 dBm. To ensure that, the parameter MPWR (see
page 172) shall be set to 43 dBm for all TXs on that cell.
1)
Software Power Boost (not applicable for RBS 2401):
The feature Software Power Boost is activated by setting
BSPWRT to a special value that is 2 dB higher than the
maximum possible power at the PA output. TX diversity is used
and each TX supporting the master-slave configuration is
configured. A BTS with filter combiner does not support
Sofware Power Boost.
2)
Transmitter Coherent Combining (TCC):
The feature Transmitter Coherent Combining (TCC) is activated
by setting BSPWRT to a special value that is 4 dB higher than
the maximum possible power at the PA output. TCC is
applicable to RBS 2106 and 2206 only.
3.1.5
Channel group data
The channel group data must be given for each defined channel group.
A channel group cannot be shared between different subcells. Frequency
hopping can not be done between channel groups.
CHGR
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0 (for cells without a subcell structure).
n/a (for overlaid subcells).
0 (for underlaid subcells).
Command:
RLCCC, RLDGI , RLCFP , and other commands in which a
channel group can be given.
O&M:
–
Comments:
Channel group number.
A cell is divided into one or more channel groups that contain
all physical channels on an arbitrary number of frequencies.
Cells with a subcell structure must have at least one channel
group defined in each subcell.
20(198)
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A cell without a subcell structure is given CHGR = 0 by
default. However, a cell planned with a subcell structure such as
overlaid and underlaid subcells is given CHGR = 0 by default
for the underlaid subcell.
A maximum of 16 channel groups per cell can be defined for a
cell. A total of 1024 channel groups may be defined per BSC.
STATE
Type:
Identifier.
Range:
ACTIVE, HALTED.
Unit:
–
Default:
−
Command:
RLSTC, RLSTP .
O&M:
–
Comments:
Cell or Channel Group state.
ACTIVE
HALTED
The cell or channel group is active.
The cell or channel group is halted.
HOP
Type:
Identifier.
Range:
ON, OFF, TCH.
Unit:
–
Default:
OFF.
Command:
RLCHC, RLCFP.
O&M:
When changing the parameter from OFF to ON or TCH all
ongoing calls in the channel group might be dropped.
Comments:
Frequency hopping status.
ON
OFF
TCH
The hopping status for the channel group is hopping for
TCH and SDCCH.
The hopping status for the channel group is non
hopping.
The hopping status for the channel group is hopping for
TCH only.
SDCCHs as well as TCHs can hop. A BCCH will not hop even
if it belongs to a channel group defined as hopping.
HSN
Type:
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Numeral.
21(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Range:
0 to 63.
Unit:
–
Default:
–
Command:
RLCHC, RLCFP.
O&M:
Changing of this parameter might cause all ongoing calls in the
channel group to be dropped.
Comments:
Hopping sequence number.
The hopping BPC is transmitted on a set of frequencies included
in a Hopping Frequency Set (HFS). The order of the frequencies
to transmit on is defined by the hopping sequence number HSN,
as described in GSM 05.02.
HSN = 0
HSN = 1 to 63
cyclic hopping sequence.
pseudo random sequences.
NUMREQBPC
Type:
Numeral / Identifier.
Range:
8 to 128 in steps of 8, SYSDEF.
Unit:
–
Default:
SYSDEF.
Command:
RLBDC, RLBDP.
O&M:
–
Comments:
The number of required basic physical channels (BPCs) in a
channel group.
SYSDEF: System defined limit. The number of BPCs is
defined by the number of frequencies in a channel group.
DCHNO
22(198)
Type:
Numeral.
Range:
128 to 251 (GSM 800).
1 to 124 (GSM 900, P-band).
0, 975 to 1023 (GSM 900, G1-band).
512 to 885 (GSM 1800).
512 to 810 (GSM 1900).
Unit:
ARFCN.
Default:
–
Command:
RLCFI, RLCFE, RLCFP.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
O&M:
If DCHNO is added or removed in an ACTIVE channel group
with synthesised frequency hopping, all ongoing calls could be
dropped and channel group might be misconfigured.
Comments:
Absolute RF channel number.
A maximum of 31 DCHNO per channel group can be defined
except for channel group 0, which allows only 30 DCHNO.
This is because one RF channel has to be reserved for the
BCCH that is defined by BCCHNO.
A channel group may consist of frequencies from different GSM
900 bands with one restriction. If the BCCH frequency is
defined in the P-band other DCHNO are only allowed in the Pband and not in the G1-band.
Normally, a maximum of 31 DCHNO per cell can be defined in
GSM 800 and GSM 900. However, in case of GSM 900, if the
BCCH is defined in the G1-bandand the range of ARFCNs in
the cell exceeds 112, the number of DCHNO is restricted to 22.
A maximum of 18 DCHNO per cell can be defined in GSM
1800 and GSM 1900 when the RF channel range is greater than
112. A maximum of 31 DCHNO per cell can be defined in
GSM 1800 and GSM 1900 when the RF channel range is less
than or equal to 112.
SDCCH
Type:
Numeral.
Range:
0 to 16 or
0 to 7, when parameter CCHPOS is set to BCCH, or
0 to 3, when parameter CCHPOS is set to BCCH and the cell is
an extended range cell.
Unit:
–
Default:
1, see below for details.
Command:
RLCCC, RLCFP.
O&M:
–
Comments:
Required number of SDCCH/8.
Call set up, location updating and SMS are using the SDCCH
channel. The system supports four types of combination for
SDCCH channels (see also 0):
• SDCCH/4: The SDCCH is combined with the BCCH in
time slot 0 on the BCCH carrier. This SDCCH configuration
provides 4 subchannels for signalling. Only one SDCCH/4
can be defined for each cell. (BCCHTYPE = COMB).
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
• SDCCH/4 including CBCH: One subchannel is replaced
by a CBCH. This SDCCH/4 configuration provides 3
subchannels for signalling and one for transmission of
47SMSCB messages. (BCCHTYPE = COMBC).
• SDCCH/8: This SDCCH configuration provides 8
subchannels for signalling (BCCHTYPE = NCOMB,
CBCH = NO).
• SDCCH/8 including CBCH: One subchannel is replaced
by a CBCH. This SDCCH/8 configuration provides 7
subchannels for signalling and one for transmission of
SMSCB messages (BCCHTYPE = NCOMB, CBCH =
YES).
By system default, one SDCCH/8 without CBCH is provided in
the cell if the BCCH frequency for the cell is defined and the
type of BCCH is non-combined. Note that the SDCCH/4 and its
CBCH are specified together with the BCCH (see section 0).
Up to 16 SDCCH/8 can be specified per cell. This number is
reduced by one if an SDCCH/4 is defined for the cell. The
number of SDCCH/8s in a cell can not be more than the number
of frequencies within the cell.
Furthermore, the number of SDCCH/8s in a channel group can
not be more than the number of frequencies in that channel
group. This does not apply if channel group is zero and if the
parameter CCHPOS is set to BCCH.
In case the required number of BPCs has been set by command,
the number of SDCCHs can not exceed the required number of
BPCs divided by 8.
Note that by the function Adaptive Configuration of Logical
Channels, the number of required SDCCHs in a cell can be
automatically adapted depending on the demand for such
channels (see section Adaptive Configuration of Logical
Channels, page 148).
CCHPOS
24(198)
Type:
Identifier.
Range:
BCCH, TN.
Unit:
–
Default:
TN.
Command:
RLCCC, RLCFP.
O&M:
–
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments:
Control channel position. Parameter CCHPOS can only be used
for channel group zero. For other channel groups CCHPOS is
always equal to TN and can not be changed.
BCCH:
All SDCCHs in channel group 0 will be placed
on the BCCH frequency. This alternative is only
valid for channel group 0.
TN:
The SDCCH(s) in the cell will be placed on the
timeslot number entered with parameter TN.
For CCHPOS = BCCH, the first SDCCH will be placed on
timeslot number 1, the next will be placed on timeslot number 2
and so on. In this case, if parameter TN is entered, it does not
affect the configuration. This implies that a maximum of 7
SDCCHs can be added for a normal and 3 SDCCHs for an
extended range cell.
TN
Type:
Numeral.
Range:
0 to 3 (normal cell).
0, 2 (extended range cell).
Unit:
–
Default:
2
Command:
RLCCC, RLCFP.
O&M:
–
Comments:
Timeslot number where the SDCCH/8 will be located.
TN is only valid for CCHPOS = TN and must be equal for all
channel groups in a cell.
CBCH
Type:
Identifier.
Range:
YES, NO.
Unit:
–
Default:
NO.
Command:
RLCCC, RLCFP.
O&M:
–
Comments:
Cell broadcast channel. CBCH cannot be defined for an overlaid
subcell.
YES
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CBCH shall be included in one of the SDCCH/8 for the
cell or channel group.
25(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
NO
26(198)
No SDCCH/8 for the cell or channel group shall include
CBCH.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.2
Neighbouring cell relation data
3.2.1
Neighbouring cell relation data
Note: Within this chapter, only relations to GSM neighbouring cell are
described. For the descripion of relations to UMTS neighbouring cells, see
page 157.
There are two types of parameters that can be defined for each neighbouring
cell relation; Hysteresis and Offset parameters. It is possible to define up to 64
neighbours for each cell. A total of up to 8192 neighbouring cell relations can
be defined per BSC.
CELLR
Type:
String.
Range:
1 to 7 characters except ALL.
Unit:
–
Default:
–
Command:
RLNRI, RLNRC, RLNRE, RLNRP.
O&M:
–
Comments:
Related cell designation.
The identity of the neighbouring cell for which the set of
parameters should be applied is specified by means of CELLR.
The name of the neighbouring cell must be specified here.
All internal neighbour relations are mutual unless explicitly
specified.
Example:
If cell B is defined as a neighbour to cell A
(CELLR = B) with certain values for the hysteresis and offset
parameters then cell A is automatically defined as a neighbour
to cell B with the same hysteresis values (symmetric relation)
and the same absolute values but opposite sign for the offset
parameters (antisymmetric relation).
CTYPE
Type:
String.
Range:
EXT, Omitted.
Unit:
–
Default:
Omitted.
Command:
RLDEI, RLLHP, RLDEP.
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O&M:
–
Comments:
External cell.
If the neighbouring cell belongs to another BSC then this must
be specified explicitly by means of CTYPE.
EXT
Omitted
The neighbouring cell is external.
The neighbouring cell is internal.
In addition CGI, BSIC, LAYER, LAYERTHR,
LAYERHYST, PSSTEMP, PTIMTEMP, BCCHNO,
BSPWR, BSTXPWR, BSRXMIN, BSRXSUFF, MSTXPWR,
MSRXMIN, MSRXSUFF, AW, SCHO, MISSNM and
EXTPEN must be specified for an external neighbouring cell.
These parameters are also defined in the neighbouring cell's
home BSC.
RELATION
Type:
String.
Range:
SINGLE, Omitted.
Unit:
–
Default:
Omitted.
Command:
RLNRI.
O&M:
–
Comments:
The parameter is only specified when the relation is one way
cell → cellr. This means that offset and hysteresis parameters
are only defined in one direction.
RELATION is always set to single for external cells, i.e.
neighbouring cells that belong to another BSC.
CS
Type:
String.
Range:
YES, NO.
Unit:
–
Default:
NO.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Co-site, which indicates if a cell shares the same site as its
neighbour.
YES
NO
28(198)
Cell is co-sited with neighbour.
Cell is not co-sited with neighbour.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.2.2
Additional parameters defined for neighbour cell relations
These parameters need to be defined, together with the parameters in
section 3.2.1, for neighbour cell relations. They are defined by means of the
command RLNRC.
BQOFFSET
BQOFFSETAFR
AWOFFSET
CAND
Ericsson 1 locating algorithm:
TRHYST
KHYST
LHYST
TROFFSET
KOFFSET
LOFFSET
Ericsson 3 locating algorithm:
HIHYST
LOHYST
HYSTSEP
OFFSET
3.2.3
External neighbour cell data
Note: Within this chapter, only external GSM neighbouring cell are described.
For the descripion of external UMTS neighbouring cells, see page 153.
These parameters need to be defined, together with the parameters in
sections 3.2.1 and 3.2.2, for external neighbouring cells. If applicable, also
values for the cell locating hierarchical data (see 3.16) shall be given.
CGI
BSIC
BCCHNO
MISSNM
EXTPEN
SCHO
BSPWR
BSTXPWR
MSTXPWR
BSRXMIN
MSRXMIN
BSRXSUFF
MSRXSUFF
AW
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
LAYER
LAYERTHR
LAYERHYST
PSSTEMP
PTIMTEMP
3.3
Idle mode behaviour
3.3.1
Paging – MSC data
PAGREP1LA
Type:
Numeral.
Range:
0 to 3.
Unit:
–
Default:
2.
Command:
DBTSP:TAB=AXEPARS,SETNAME=GSMMMSC.
O&M:
–
Comments:
Repeated paging in one location area.
The parameter is optional.
This parameter defines in case of mobile terminating calls how
the paging in one location area is repeated.
0
1
2
3
Paging in one location area is not repeated.
Paging in one location area is repeated with either TMSI
or IMSI.
Paging in one location area is repeated with IMSI.
Paging is repeated as global paging with IMSI.
Note: This parameter is only defined for Ericsson MSCs.
PAGREPGLOB
30(198)
Type:
Numeral.
Range:
0 to 1.
Unit:
–
Default:
0.
Command:
DBTSP:TAB=AXEPARS,SETNAME=GSMMMSC.
O&M:
–
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments:
Repeated global paging.
The parameter is optional.
This parameter defines how the global paging is repeated if the
first paging attempt was global.
0
1
Global paging is not repeated.
Global paging is repeated with IMSI.
Note: This parameter is only defined for Ericsson MSCs.
PAGNUMBERLA
Type:
Numeral.
Range:
1 to 3.
Unit:
–
Default:
1.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Number of location areas in a paging message.
This parameter indicates the maximum permitted amount of
location areas that can be included in a paging message.
The parameter is optional.
A parameter with a value > 1 is only valid if all BSCs connected
to an MSC/VLR support a paging message with a list of
location areas.
Note: This parameter is only defined for Ericsson MSCs.
PAGTIMEFRST1LA
Type:
Numeral.
Range:
2 to 10.
Unit:
s.
Default:
4.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Time supervision for the first paging in one location area.
This parameter defines the time supervision for the page
response of the first paging attempt in one location area. After
expiration of this timer the paging is repeated according to
parameter PAGREP1LA. The parameter is optional.
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Note: This parameter is only defined for Ericsson MSCs.
PAGTIMEFRSTGLOB
Type:
Numeral.
Range:
2 to 10.
Unit:
s.
Default:
4.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Time supervision for the first global paging.
This parameter defines the time supervision for the page
response of the first global paging attempt. After expiration of
this timer the paging is repeated according to parameter
PAGREPGLOB. The parameter is optional.
Note: This parameter is only defined for Ericsson MSCs.
PAGTIMEREP1LA
Type:
Numeral.
Range:
2 to 10.
Unit:
s.
Default:
7.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Time supervision for the repeated paging in one location area.
The parameter is optional.
This parameter defines the time supervision for the page
response of repeated paging in one location area. After
expiration of this timer no new paging repetition for this call is
done.
Note: This parameter is only defined for Ericsson MSCs.
PAGTIMEREPGLOB
32(198)
Type:
Numeral.
Range:
2 to 10.
Unit:
s.
Default:
7.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Time supervision for the repeated global paging.
The parameter is optional.
This parameter defines the time supervision for page response
of repeated global paging. After expiration of this timer no new
paging repetition for this call is done.
Note: This parameter is only defined for Ericsson MSCs.
3.3.2
LATA administration - MSC data
The following exchange properties are valid only if the function Equal Access
and Transit Network Selection in MSC/VLR and GMSC is implemented. This
is an optional GSM 1900 function.
LATAUSED
Type:
Numeral.
Range:
0, 1.
Unit:
-
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Defines the usage of LATA administration.
0 = LATA administration is not used.
1 = LATA administration is used. The parameter is optional.
Note: This parameter is only defined for Ericsson MSCs.
PAGLATA
Type:
?.
Range:
0, 1.
Unit:
-
Default:
0.
Command:
DBTSP:TAB=AXEPARS,SETNAME=GSMMMSC.
O&M:
–
Comments:
Indicates if LATA paging is used for mobile terminating calls or
not.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
0 = LATA paging is not used.
1 = LATA paging is used.
This parameter is only valid if parameter LATAUSED = 1. The
parameter is optional.
Note: This parameter is only defined for Ericsson MSCs.
PAGREPCT1LA
Type:
Numeral.
Range:
0 to 3.
Unit:
-
Default:
2.
Command:
DBTSP:TAB=AXEPARS,SETNAME=GSMMMSC.
O&M:
–
Comments:
Defines how the paging is repeated in one location area.
0 = Paging in one location area is not repeated.
1 = Paging in one location area is repeated with either TMSI or
IMSI.
2 = Paging in one location area is repeated with TMSI.
3 = Paging is repeated as call delivery LATA paging with IMSI.
This parameter is only valid if parameter PAGLATA = 1. The
parameter is optional.
Note: This parameter is only defined for Ericsson MSCs.
PAGTIMEREPLATA
Type:
Numeral.
Range:
2 to 10.
Unit:
s.
Default:
7.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Defines the time supervision for page response of repeated
LATA paging. After expiration of this timer no new paging
repetition for this call is done.
This parameter is only valid if parameter PAGLATA = 1. The
parameter is optional.
34(198)
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Note: This parameter is only defined for Ericsson MSCs.
3.3.3
Implicit detach – MSC data
BTDM
Type:
Numeral.
Range:
6 to 1530 in steps of 6, OFF.
Unit:
min.
Default:
OFF.
Command:
MGIDP , MGIDI.
O&M:
–
Comments:
Base time duration of implicit detach of a mobile subscriber by
the network.
BTDM must be as long as the longest periodic updating time
(T3212) in the interworking BSCs.
The supervision time is the sum of BTDM and GTDM.
Note: This parameter is only defined for Ericsson MSCs.
GTDM
Type:
Numeral.
Range:
0 to 255.
Unit:
min.
Default:
–
Command:
MGIDP , MGIDI.
O&M:
–
Comments:
Guard time duration.
The guard time is used to prevent unnecessary marking of MS
as implicit detached.
Note: This parameter is only defined for Ericsson MSCs.
3.3.4
Automatic deregistration – MSC data
TDD
Type:
Numeral.
Range:
1 to 255, OFF.
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Unit:
days.
Default:
OFF.
Command:
MGADI.
O&M:
–
Comments:
Automatic deregistration supervision time.
Offers the possibility to automatically deregister mobile
subscribers that have had no radio contact during a certain
period of time in the MSC/VLR.
Note: This parameter is only defined for Ericsson MSCs.
3.3.5
Idle mode behaviour – cell data
These parameters are sent in the System Information on BCCH & SACCH.
Note: Within this chapter, only parameters that are used in GSM cell selection
and reselection are described. For the descripion of parameters used in GSM UMTS cell reselection, see page 150.
ACCMIN
Type:
Numeral.
Range:
47 to 110.
Unit:
See comments.
Default:
110.
Command:
RLSSC, RLSSP.
O&M:
–
Comments:
Minimum received signal level in dBm at the MS for permission
to access the system.
47
48
···
108
109
110
greater than −48 dBm (level 63)
−49 to −48 dBm
(level 62)
−109 to −108 dBm
−110 to −109 dBm
less than −110 dBm
(level 2)
(level 1)
(level 0)
In Ericsson’s GSM system, the MS power can be controlled by
the parameter CCHPWR, which indicates the maximum
transmitter power that the MS is allowed to use when
performing an access to the system (GSM 03.22).
Whilst in idle mode, the MS continuously confirms that it has
chosen the most appropriate cell by calculating the quantity C1
from the received signal level rxlev:
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C1 = (rxlev − ACCMIN) − max (CCHPWR − P, 0)
The MS camps on the cell providing the highest positive C1.
The condition states that an MS must measure signal strength
higher than ACCMIN from a cell to be able to access the
system via this cell.
In addition, if the MS maximum possible output power, P, is
lower than CCHPWR then the requirement on the signal
strength increases by the difference between P and CCHPWR.
This means that if the MS cannot reach the maximum output
power then the requirement on the signal strength in the
downlink is harder. In this case, the measured cell is probably
not designed for MSs of that class.
A low value of ACCMIN means that the coverage in idle mode
is improved at the expense of the risk of having an increased
number of call set-up failures.
CCHPWR
Type:
Numeral.
Range:
13 to 43 in steps of 2 (GSM 800).
13 to 43 in steps of 2 (GSM 900).
4 to 30 in steps of 2 (GSM 1800).
4 to 30 in steps of 2 (GSM 1900).
Unit:
dBm.
Default:
–
Command:
RLSSC, RLSSP.
O&M:
–
Comments:
Maximum transceiver power level an MS may use when
accessing on a control channel.
CRH
Type:
Numeral.
Range:
0 to 14 in steps of 2.
Unit:
dB.
Default:
4.
Command:
RLSSC, RLSSP.
O&M:
–
Comments:
Cell Reselection Hysteresis. Receiving signal strength (rxlev)
hysteresis for required cell re-selection over location area
border.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Each change of location area requires a location update to be
performed, which increases signalling load. In order to prevent
ping-pong effects for cell selection across location area borders,
a hysteresis, defined by CRH, is used.
A cell in a different location area is only selected if it is “better”
in terms of the quantity C2 for GSM phase 2 mobiles or C1 for
GSM phase 1 mobiles, than the cells in the current location area
by at least the value of CRH during a period of 5 seconds.
The C2 criterion is given in the description of parameter CRO.
(GSM 03.22).
NCCPERM
Type:
Numeral.
Range:
0 to 7.
Unit:
–
Default:
–
Command:
RLSSC, RLSSP.
O&M:
–
Comments:
PLMN (NCC) Permitted.
Defines the allowed NCCs (Network Colour Code) on the
BCCH carriers for which the MS is permitted to send
measurement reports.
Up to 8 NCCs can be defined (GSM 04.08, section 10.5.2.15).
See also section 0.
SIMSG
Type:
Numeral.
Range:
1, 7, 8.
Unit:
–
Default:
−
Command:
RLSMC, RLSMP.
O&M:
–
Comments:
System Information BCCH Message.
When the cell is connected to a BTS equipment that supports
GSM phase 2 system information, it is possible to turn on or off
the distribution of System Information Messages 1, 7, and 8.
SIMSG is the pointer which specifies the System Information
Message to be turned on or off by the parameter MSGDIST.
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MSGDIST must be specified for each one of the System
Information Messages.
Note 1: Channel group 0 has to be in state ACTIVE when this
parameter is set.
Note 2: The parameter AGBLK must not be zero when system
information types 7 and 8 are sent.
Example of parameter settings:
SIMSG = 1
SIMSG = 7
SIMSG = 8
MSGDIST = ON
MSGDIST = OFF
MSGDIST = OFF
MSGDIST
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
see comments.
Command:
RLSMC, RLSMP.
O&M:
–
Comments:
System Information BCCH Message distribution.
ON
OFF
System Information BCCH Message is distributed.
System Information BCCH Message is not distributed.
Recommended default settings:
MSGDIST type 1 = ON
MSGDIST type 7 = OFF
MSGDIST type 8 = OFF
Note: Channel group 0 has to be in state ACTIVE when this
parameter is set.
CB
Type:
Identifier.
Range:
YES, NO.
Unit:
–
Default:
NO.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Cell Bar Access.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Defines whether the cell is barred for access or not.
NO
YES
The cell is not barred for access.
The cell is barred for access.
It is possible to use CB to bar a cell (GSM 03.22 and 05.08).
When a cell is barred it is ignored by MSs in idle mode but an
active MS can perform handover to it.
CBQ
Type:
Identifier.
Range:
HIGH, LOW.
Unit:
–
Default:
HIGH.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Cell Bar Qualify.
HIGH: The cell has high priority
LOW: The cell has low priority
For GSM phase 2 MSs, a cell can be given two levels of
priority. This is controlled by the parameter CBQ in
conjunction with CB, as shown in below table.
The interpretation of CB and CBQ varies depending on whether
the MS is a phase 1 MS or a phase 2 MS. For phase 2 MSs the
behaviour is also different in cell selection compared to cell
reselection.
CBQ
CB
Phase 2 MS
Phase 1 MS
Cell sel.
Cell resel.
Cell sel./resel.
HIGH
NO
normal
normal
normal
HIGH
YES
barred
barred
barred
LOW
NO
low priority
normal
normal
LOW
YES
low priority
normal
barred
In idle mode the MS looks for suitable cells to camp on by
checking cells in descending order of received signal
strength. If a suitable cell is found, the MS camps on it. At
cell selection with a phase 2 MS, cells can have two levels
of priority, suitable cells which are of low priority are only
camped on if there are no other suitable cells of normal
priority (GSM 03.22).
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
ACC
Type:
Numeral/Identifier.
Range:
0 to 15, CLEAR.
Unit:
–
Default:
CLEAR.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Access Control Class.
Defines which access classes that are barred. Up to 16
access classes can be defined. Class 10 defines emergency
call in the cell.
0 to 9
Access classes that are barred.
10 Emergency call not allowed for MSs belonging to
classes 0 to 9.
11 to 15 Access classes that are barred.
CLEAR No access classes are barred.
It may be of interest to the operator to bar the access to the
system to a certain type of MS. For this purpose it is
possible to define up to 16 different access classes of MSs
and then select the classes that can not access a cell by
means of ACC (GSM 04.08, section 10.5.2.17).
The classes are defined according to GSM 02.11. Classes 0
to 9 are reserved for the operator to be used for normal
subscribers (home and visiting subscribers). Classes 11 to
15 are defined as follows:
11 PLMN use.
12 Security Services.
13 Public utilities.
14 Emergency services.
15 PLMN staff.
MAXRET
Type:
Numeral.
Range:
1, 2, 4, 7.
Unit:
–
Default:
4.
Command:
RLSBC, RLSBP.
O&M:
–
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Comments:
Maximum retransmissions.
Defines maximum number of retransmissions an MS may
do when accessing the system on RACH.
TX
Type:
Numeral.
Range:
3 to 12, 14, 16, 20, 25, 32, 50.
Unit:
–
Default:
50.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
TX-integer.
Defines the number of timeslots over which the MS may
spread transmission when accessing the system.
When the MS accesses the system it can spread the
transmission over a certain number of timeslots. The
parameter TX that the MS receives as a part of the system
information message (GSM 04.08, section 10.5.2.29) is
used to calculate the time interval between successive
transmissions.
The MS sends maximum MAXRET+1
Channel Request messages on the RACH to the BTS in a
way such that (GSM 04.08, section 3.3.1.2):
• the number of slots belonging to the mobile station's
RACH between initiation of the immediate assignment
procedure and the first Channel Request message
(excluding the slot containing the message itself) is a
value drawn randomly for each new initial assignment
initiation with uniform probability distribution in the set
{0, 1, ..., max(TX,8)−1}.
• the number of slots belonging to the mobile station's
RACH between two successive Channel Request
messages (excluding the slots containing the messages
themselves) is a value drawn randomly for each new
transmission with uniform probability distribution in
the set {S, S+1, ..., S+TX−1}, where S is a parameter
depending on the CCCH-configuration and - for GSM
phase 2 mobiles - on the value of TX as defined in the
table below.
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TX
S for GSM phase 2 MSs
non combined
combined
CCCH
CCCH/SDCCH
3, 8, 14, 50
55
41
4, 9, 16
76
52
5, 10, 20
109
58
6, 11, 25
163
86
7, 12, 32
217
115
Example (GSM phase 2 MS):
If the cell has a non combined CCCH and TX=7 then the
interval between each retransmission may be
1 second (217 RACH slots),
1 sec. + 4.615 ms,
1 sec. + 2*4.615 ms,
···
1 sec. + 6*4.615 ms.
For GSM phase 1 mobiles, S takes the following values:
- 0.25 seconds in case of non-combined CCCH.
- 0.35 seconds in case of combined CCCH/SDCCH.
ATT
Type:
Identifier.
Range:
YES, NO.
Unit:
–
Default:
YES.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Attach-detach allowed.
NO
MSs in the cell are not allowed to apply IMSI
attach and
detach.
YES
MSs in the cell should apply IMSI attach and
detach.
ATT tells the MS if it is allowed to apply IMSI attach and
detach, i.e. if the MS is allowed to send a message to the
system every time it is turned on or off (GSM 04.08,
section 10.5.2.11).
T3212
Type:
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Range:
0 to 255.
Unit:
Deci hours.
Default:
40.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
T3212 time-out value.
Note: See the corresponding MSC parameter BTDM at
page 35.
Defines the time-out value that controls the location
updating procedure, i.e. when notifying the availability of
the MS to the network. (GSM 04.08, section 10.5.2.11).
0 Infinite time-out.
1 0.1 hours.
···
255
25.5 hours.
CRO
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
0.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Cell Reselection Offset.
Defines an offset to encourage or discourage MSs to select
the cell while it is camping on another cell, i.e. perform a
cell reselection.
0 0 dB
1 2 dB
···
63 126 dB.
In order to optimise cell reselection, the additional cell
reselection parameters CRO, TO, and PT are broadcast on
the BCCH of each cell. The cell reselection process
employs a quantity C2 for GSM phase 2 MSs, which
depends on these parameters (GSM 03.22). GSM phase 1
MSs use the quantity C1 for cell reselection instead, i.e.
these mobiles do not experience an offset.
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The reselection quantity C2 is defined as:
C2 = C1 + CRO − TO * H(PT − T)
for PT ≠ 31
C2 = C1 − CRO
for PT = 31
where
H(x)
= 0 for x < 0
= 1 for x ≥ 0
T is the timer, started from zero at the point at which the
cell was placed by the MS on the list of strongest carriers.
T is reset to zero whenever the cell is no longer on the list
of strongest carriers. This will tend to prevent fast moving
MSs from selecting the cell (GSM 03.22).
The quantity C1 is given in the description of parameter
ACCMIN (page 36).
CRO applies an offset to the C2 reselection criterion for
the cell.
TO applies a negative offset to C2 for the duration of PT
after the timer has started for the cell.
PT is the duration for which TO applies. The value 31 of
the PT parameter is reserved to change the sign of CRO
and the value of TO is ignored as indicated by the equation
defining C2.
These parameters are used to ensure that the MS is camped
on the cell with which it has the probability of successful
communication on uplink and downlink (GSM 05.08).
Note: The setting of this parameter only affects GSM
phase 2 MSs.
TO
Type:
Numeral.
Range:
0 to 7.
Unit:
dB.
Default:
0.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Temporary Offset.
Defines a negative offset applied to CRO.
0 0 dB
1 10 dB
···
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6 60 dB
7 infinite.
Note: The setting of this parameter only affects GSM
phase 2 MSs.
PT
Type:
Numeral.
Range:
0 to 31.
Unit:
-.
Default:
0.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Penalty Time.
Defines duration for which TO is applied.
0 20 seconds
1 40 seconds
···
31 620 seconds.
The value 31 indicates that the cell reselection offset is
negative and that the temporary offset is ignored.
Note: The setting of this parameter only affects GSM
phase 2 MSs.
3.4
Locating
3.4.1
Intra-MSC handover – MSC data
Intra-MSC handover is a handover between BSCs within the MSC.
These parameters are valid both for anchor and non-anchor MSCs.
HNDRELCHINTRA
46(198)
Type:
Numeral.
Range:
0, 1
Unit:
–
Default:
1
Command:
MGEPC , MGEPP.
O&M:
–
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments:
Channel release in intra-MSC inter-BSC handover.
HNDRELCHINTRA defines the release of the original
channel after expiration of the timer HNDTCMDINTRA
for handover time supervision in intra-MSC inter-BSC
handover. The parameter is optional.
0 The handover signalling is terminated and the call
continues on the original channel.
1 The original channel is released.
Note: This parameter is only defined for Ericsson MSCs.
HNDSDCCH
Type:
Numeral.
Range:
0, 1
Unit:
–
Default:
1
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Intra-MSC inter-BSC handover on signalling channels. The
parameter is optional.
HNDSDCCH determines if intra-MSC inter-BSC
handover is allowed on signalling channels:
0 Intra-MSC inter-BSC handover is not allowed on
signalling channels.
1 Intra-MSC inter-BSC handover is allowed on signalling
channels.
Note: This parameter is only defined for Ericsson MSCs.
HNDSDCCHTCH
Type:
Numeral.
Range:
0, 1
Unit:
–
Default:
1
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Intra-MSC inter-BSC handover from signalling to traffic
channel. The parameter is optional.
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HNDSDCCHTCH determines if intra-MSC inter-BSC
handover is allowed from signalling to traffic channel:
0 Intra-MSC inter-BSC handover is not allowed from
signalling to traffic channel.
1 Intra-MSC inter-BSC handover is allowed from
signalling to traffic channel.
Note: This parameter is only defined for Ericsson MSCs.
HNDTCMDINTRA
Type:
Numeral.
Range:
5 to 120
Unit:
Seconds with 1 sec intervals.
Default:
15
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Time supervision in intra-MSC inter-BSC handover. The
parameter is optional.
HNDTCMDINTRA describes the time between the
HANDOVER COMMAND and HANDOVER
COMPLETE messages in intra-MSC inter-BSC handover
(according to T102 in GSM 03.09).
Note: This parameter is only defined for Ericsson MSCs.
HNDTGSOPINTRA
48(198)
Type:
Numeral.
Range:
0 to 2500.
Unit:
Milliseconds with 20 ms intervals.
Default:
80
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Time supervision of switching moment of the group switch
(GS) in the MSC at intra-MSC inter-BSC handover. The
parameter is optional. The parameter is only valid and can
only be changed if the time supervision is used to define
the operation point of the GS. Timer is started at sending
of Handover Command message.
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0 no time supervision which means GS is changed at
reception of “handover detect” message or “handover
complete” message.
The path in the GS in the MSC will be changed at the first
occurrence of the following event:
– timer expiry.
– reception of HANDOVER DETECT from the target
BSC.
– reception of HANDOVER COMPLETE from the target
BSC.
Note: This parameter is only defined for Ericsson MSCs.
3.4.2
Inter-MSC handover in anchor MSC – MSC data
HNDSDCCHINTO
Type:
Numeral.
Range:
0, 1
Unit:
–
Default:
1
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Outgoing inter-MSC handover on signalling channels in
anchor MSC. The parameter is optional.
It determines if outgoing inter-MSC handover is allowed
on signalling channels in anchor MSC. The parameter is
only valid if the inter-MSC handover dialogue is
established with MAP version 2.
0 Outgoing inter-MSC handover is not allowed on
signalling channels.
1 Outgoing inter-MSC handover is allowed on signalling
channels.
Note: This parameter is only defined for Ericsson MSCs.
HNDBEFOREBANSW
Type:
Numeral.
Range:
0, 1.
Unit:
–
Default:
1.
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Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Handover before B-answer. The parameter is optional. The
parameter indicates if an inter-MSC handover is allowed
on traffic channels before answer from B-subscriber.
0 Not allowed.
1 Handover allowed.
Note: This parameter is only defined for Ericsson MSCs.
3.4.3
Inter-MSC handover in non-anchor MSC – MSC data
HNDSDCCHINTI
Type:
Numeral.
Range:
0, 1.
Unit:
–
Default:
1.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Incoming inter-MSC handover on signalling channels in
non-anchor MSC. The parameter is optional.
It determines if incoming inter-MSC handover is allowed
on signalling channels in non-anchor MSC. The parameter
is only valid if the inter-MSC handover dialogue has been
established with MAP version 2 by the anchor MSC.
0 Incoming inter-MSC handover is not allowed on
signalling channels.
1 Incoming inter-MSC handover is allowed on signalling
channels.
Note: This parameter is only defined for Ericsson MSCs.
3.4.4
BSC exchange property data
FASTASSIGN
50(198)
Type:
Numeral.
Range:
0, 1.
Unit:
–
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
FASTASSIGN specifies if Locating shall wait until
reception of the first measurement results before sending
the requested candidate list.
0 Wait for measurement results.
1 Do not wait for measurement results.
If no measurements are available and FASTASSIGN = 1,
a candidate list that only contains the serving cell is created
and sent.
NOOFPHYSINFOMSG
Type:
Numeral.
Range:
0 to 254.
Unit:
–
Default:
35.
Command:
RAEPC, RAEPP.
O&M:
In order to make the parameter change active, it is needed
to halt and activate all cells in the BSC.
Comments:
NOOFPHYSINFOMSG indicates the maximum number
of repetitions of physical information messages during the
handover procedure (NY1, see GSM 04.08, section 3.4.4).
TIMER3105
Type:
Numeral.
Range:
0 to 254.
Unit:
10 ms.
Default:
4.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
TIMER3105 indicates the time between repetition of
physical information messages during the handover
procedure (T3105, see GSM 04.08, section 3.4.4).
Note: Base stations of the RBS 200 series only support a
range of 4 to 254.
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3.4.5
Algorithm selection – BSC data
EVALTYPE
Type:
Numeral.
Range:
1, 3.
Unit:
–
Default:
1.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Evaluation type.
EVALTYPE allows for the use of two different types of
locating algorithm.
1 Cell ranking by the Ericsson1 locating algorithm.
3 Cell ranking by the Ericsson3 locating algorithm.
The Ericsson3 locating algorithm is simplified compared to
the Ericsson1 algorithm.
3.4.6
Flow control – BSC data
TINIT
Type:
Numeral.
Range:
0 to 120.
Unit:
SACCH periods (480 ms).
Default:
10.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Minimum time before handover is allowed on an initial
call or after handover.
The locating comparison is performed every SACCH
period (480 ms), except for certain periods for which the
maximum lengths are specified by the parameters: TINIT,
TALLOC and TURGEN. They apply to different
situations.
The locating process is suspended during a time specified
by TINIT.
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TALLOC
Type:
Numeral.
Range:
0 to 120.
Unit:
SACCH periods (480 ms).
Default:
2.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Minimum time between allocation attempts when there is a
better cell condition and when the first allocation attempt
has failed.
In the case a handover, intra cell handover or
overlaid/underlaid subcell change fails due to congestion,
the locating process continues but no handover candidate
list will be prepared before the timer TALLOC has
expired, unless an urgency state is detected.
TURGEN
Type:
Numeral.
Range:
0 to 120.
Unit:
SACCH periods (480 ms).
Default:
2.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Minimum time between allocation attempts at an urgency
condition and when the first allocation attempt has failed.
In the case an urgency handover attempt fails due to
congestion, the locating process will proceed and even a
handover candidate list will be prepared. However the
candidate list will not be transferred to the handover
function during the time specified by the parameter
TURGEN, unless the candidate list contains a better cell.
3.4.7
Filter control – BSC data
TAAVELEN
Type:
Numeral.
Range:
1 to 20.
Unit:
–
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Default:
4.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Timing advance average length. Number of values in the
averaging of timing advance.
For the evaluation of timing advance the algorithm uses a
sliding window, the length of which is determined by
TAAVELEN. TAAVELEN determines the total number
of values to be used in the moving average.
3.4.8
Filter control – cell data
The measurement results are sent from the BTS to the BSC every
SACCH period (480 ms) starting when the MS is assigned an SDCCH.
The measurement results are stored and filtered in the BSC. The signal
strength and quality measurements are filtered in order to smooth out
measurement noise. In addition, some fading components of a duration of
about the same as the filter response time, are filtered out.
When filtering measurements for a cell, always the filters that are
assigned to the cell are used. This means that serving cell and
neighbouring cell measurements can be evaluated by different filters, if
different filters are assigned to the different cells.
The locating filters are numbered from 1 to 9, and correspond to different
filter types:
1 to 5 General FIR filters.
6 Straight average filter.
7 Exponential filter.
8 First order Butterworth filter.
9 Median filter.
Note: For a multislot configuration, only the main channel is evaluated.
The reported downlink quality measurement on the main channel is the
worst quality measured among all the uni-directional channels and the
main channel.
SSEVALSD
54(198)
Type:
Numeral.
Range:
1 to 9.
Unit:
–
Default:
6.
Command:
RLLFC, RLLFP.
O&M:
–
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Comments:
Signal strength filter for speech/data.
The filters for down- and uplink signal strength in serving
cell and downlink signal strength from neighbouring cells
are selected by SSEVALSD for the channel mode
speech/data.
QEVALSD
Type:
Numeral.
Range:
1 to 9.
Unit:
–
Default:
6.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Quality filter for speech/data.
The filters for quality in down- and uplink in the serving
cell are selected by QEVALSD for the channel mode
speech/data.
SSEVALSI
Type:
Numeral.
Range:
1 to 9.
Unit:
–
Default:
6.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Signal strength filter for signalling only.
The filters for down- and uplink signal strength in serving
cell and downlink signal strength from neighbouring cells
are selected by SSEVALSI for the channel mode
signalling only.
QEVALSI
Type:
Numeral.
Range:
1 to 9.
Unit:
–
Default:
6.
Command:
RLLFC, RLLFP.
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O&M:
–
Comments:
Quality filter for signalling only.
The filters for quality in down- and uplink in the serving
cell are selected by QEVALSI for the channel mode
signalling only.
SSLENSD
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
10.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Length of signal strength filter for speech/data.
SSLENSD shall be specified only when SSEVALSD is in
the range 6 to 9.
QLENSD
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
10.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Length of quality filter for speech/data.
QLENSD shall be specified only when QEVALSD is in
the range 6 to 9.
SSLENSI
56(198)
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
4.
Command:
RLLFC, RLLFP.
O&M:
–
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Comments:
Length of signal strength filter for signalling only.
SSLENSI shall be specified only when SSEVALSI is in
the range 6 to 9.
QLENSI
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
4.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Length of quality filter for signalling only.
QLENSI shall be specified only when QEVALSI is in the
range 6 to 9.
SSRAMPSD
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Ramping length of signal strength filter for speech/data.
SSRAMPSD shall be specified only when SSEVALSD is
in the range 6 to 9.
SSRAMPSI
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
2.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Ramping length of signal strength filter for signalling only.
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SSRAMPSI shall be specified only when SSEVALSI is in
the range 6 to 9.
MISSNM
Type:
Numeral.
Range:
0 to 18.
Unit:
–
Default:
3.
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
Maximum number of consecutive missing measurements
for a serving cell or neighbouring cell permitted before all
old measurements are considered invalid.
If a measurement report from a neighbouring BTS is
missing, that neighbour is not included in the evaluation.
When a new measurement report containing information
about that BTS is received, the missing values are linearly
interpolated. But the interpolation is only allowed if the
number of missing measurements is equal to or smaller
than a certain number that is determined by MISSNM.
When the number of missing measurements exceeds
MISSNM all former measurements from that BTS are
discarded and the evaluation of that BTS starts again when
a new value arrives.
If an urgency condition occurs and there are no
neighbouring cells in the current measurement, the last
received measurement containing neighbours is used. If the
number of missing measurements exceeds the parameter
MISSNM the old measurements are considered invalid.
If a measurement from serving cell is missing, locating is
suspended until the serving cell measurements start again.
3.4.9
Basic ranking – cell data
BSPWR
58(198)
Type:
Numeral.
Range:
0 to 80.
Unit:
dBm.
Default.
–
Command:
RLLOC, RLLOP.
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O&M:
–
Comments:
BSPWR is the BTS output power on the BCCH frequency.
BSPWR is defined at the reference point used in the
locating algorithm.
MSRXMIN
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
Default:
–
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
Minimum required signal strength received at the MS in a
given cell to consider the cell as a possible candidate for
handover.
MSRXMIN takes a positive value, which represents the
corresponding negative value in calculations.
BSRXMIN
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
Default:
–
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
Minimum required signal strength received at the BTS, at
the reference point, to consider the cell as a possible
candidate for handover.
BSRXMIN takes a positive value, which represents the
corresponding negative value in calculations.
MSRXSUFF
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
Default:
–
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Command:
RLLOC, RLLOP.
O&M:
–
Comments:
Sufficient signal strength received at the MS to consider
the cell selectable for further ranking according to the
magnitude of the path loss.
MSRXSUFF takes a positive value that represents the
corresponding negative value in calculations.
BSRXSUFF
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
Default:
–
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
Sufficient signal strength received at the BTS, at the
reference point, to consider the cell selectable for further
ranking according to the magnitude of the path loss.
BSRXSUFF takes a positive value, which represents the
corresponding negative value in calculations.
3.4.10
Basic ranking – cell/subcell data
This parameter may be defined different for underlaid and overlaid
subcell. In case there is no subcell structure defined, it is defined per cell.
BSTXPWR
Type:
Numeral.
Range:
0 to 80.
Unit:
dBm.
Default:
–
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
BSTXPWR is the BTS output power on all frequencies
other than the BCCH frequency.
BSTXPWR is defined at the reference point used in the
locating algorithm.
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3.4.11
Basic ranking – neighbour cell data
Parameters for the Ericsson1 locating algorithm
KHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
3.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength hysteresis when evaluating K-cells.
KHYST is the hysteresis for cell borders defined by the
signal strength criterion. It is defined as a cell to cell
relation. i.e. in each cell it can be defined individually for
each neighbour that has been defined for that cell. KHYST
is a symmetrical relation parameter, i.e. the same value
applies for both directions of the cell to cell relation.
Note: KHYST is only valid for the Ericsson1 locating
algorithm.
LHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
3.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Path loss hysteresis when evaluating L-cells.
LHYST is the hysteresis for cell borders defined by the
path loss criterion. It is defined as a cell to cell relation. i.e.
in each cell it can be defined individually for each
neighbour that has been defined for that cell. LHYST is a
symmetrical relation parameter, i.e. the same value applies
for both directions of the cell to cell relation.
Note: LHYST is only valid for the Ericsson1 locating
algorithm.
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TRHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
2.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength hysteresis for a K- and L-cell border
segment.
Note: TRHYST is only valid for the Ericsson1 locating
algorithm.
KOFFSET
Type:
Numeral.
Range:
−63 to 63.
Unit:
dB.
Default:
0.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength offset when evaluating K-cells.
An offset value is a certain amount of dB by which the
path loss or the signal strength can be adjusted in order to
push the cell border towards or away from the serving
BTS.
As the BSC does not accept negative parameters each
offset parameter is implemented as two different
parameters. For instance, in the case of KOFFSET, the
BSC parameters are called KOFFSETP (zero or positive
value) and KOFFSETN (negative value). The same goes
for LOFFSET and TROFFSET.
Note: KOFFSET is only valid for the Ericsson1 locating
algorithm.
LOFFSET
62(198)
Type:
Numeral.
Range:
−63 to 63.
Unit:
dB.
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Default:
0.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Path loss offset when evaluating L-cells.
Note: LOFFSET is only valid for the Ericsson1 locating
algorithm.
TROFFSET
Type:
Numeral.
Range:
−63 to 63.
Unit:
dB.
Default:
0.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength offset for a K- and L-cell border segment.
Note: TROFFSET is only valid for the Ericsson1 locating
algorithm.
Parameters for the Ericsson3 locating algorithm
HIHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
5.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength hysteresis when evaluating high signal
strength cells.
Note: HIHYST is only valid for the Ericsson3 locating
algorithm.
LOHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
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Default:
3.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength hysteresis when evaluating low signal
strength cells.
Note: LOHYST is only valid for the Ericsson3 locating
algorithm.
HYSTSEP
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
Default:
90.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength separator for high and low signal strength
cells.
HYSTSEP takes a positive value that represents the
corresponding negative value in calculations.
Note: HYSTSEP is only valid for the Ericsson3 locating
algorithm.
OFFSET
Type:
Numeral.
Range:
−63 to 63.
Unit:
dB.
Default:
0
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength offset.
The parameter is represented by OFFSETN, if the value is
in the range (−63, -1) dB. Positive values, (0, 63) dB, is
represented by OFFSETP.
Note: OFFSET is only valid for the Ericsson3 locating
algorithm.
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3.4.12
Urgency conditions – BSC exchange property data
These parameters are used for statistical reasons only and do not
influence the locating process.
BADQDL
Type:
Numeral.
Range:
0 to 100.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
55.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Bad quality limit for urgency condition, downlink.
BADQUL
Type:
Numeral.
Range:
0 to 100.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
55.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Bad quality limit for urgency condition, uplink.
LOWSSDL
Type:
Numeral.
Range:
47 to 110
Unit:
dBm (negative).
Default:
104.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Low signal strength limit for urgency condition, downlink.
LOWSSUL
Type:
Numeral.
Range:
47 to 110
Unit:
dBm (negative).
Default:
104.
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3.4.13
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Low signal strength limit for urgency condition, uplink.
Urgency conditions – cell data
TALIM
Type:
Numeral.
Range:
0 to 63 (normal range cell).
0 to 219 (extended range cell).
Unit:
Bit periods (bp).
Default:
62.
Command:
RLLUC, RLLUP.
O&M:
–
Comments:
Timing advance limit for handover. Urgency detection
parameter.
TALIM determines the maximum timing advance that the
MS is recommended to use in the cell.
If the measured and averaged timing advance value is
equal to or greater than TALIM, the cell must be
abandoned urgently if there exists a neighbouring cell that
can take over the connection. If no such cell exists no
action is taken.
The useful range of TALIM is
0 to 219
0 to 133
boards.
0 to 63
Extended range cells with RBS2000.
Extended range cells with RBS200 using SPPNormal range cells.
PSSBQ
66(198)
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
10.
Command:
RLLPC, RLLPP.
O&M:
–
Comments:
Signal strength penalty when handover due to bad quality.
This penalty is valid during PTIMBQ.
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Note: In order to minimise the risk of immediate handback,
PSSBQ should be greater than (BQOFFSET - hysteresis).
(That means KHYST or LHYST when using the
Ericsson1 locating algorithm respective HIHYST or
LOHYST when using the Ericsson3 locating algorithm.)
PSSTA
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
63.
Command:
RLLPC, RLLPP.
O&M:
–
Comments:
Signal strength penalty when handover due to too large
timing advance. This penalty is valid during PTIMTA.
PTIMBQ
Type:
Numeral.
Range:
0 to 600.
Unit:
Seconds.
Default:
10.
Command:
RLLPC, RLLPP.
O&M:
–
Comments:
Penalty time when handover due to bad quality.
PTIMTA
Type:
Numeral.
Range:
0 to 600.
Unit:
Seconds.
Default:
10.
Command:
RLLPC, RLLPP.
O&M:
–
Comments:
Penalty time when handover due to too large timing
advance.
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3.4.14
Urgency conditions – neighbour cell data
BQOFFSET
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
3.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength region for bad quality urgency handovers.
For AMR FR connections, the parameter
BQOFFSETAFR is used.
Note: BQOFFSET is defined as a cell to cell relation and
is a symmetrical parameter.
BQOFFSETAFR
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
3.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength region for bad quality urgency handovers
for AMR FR connections.
Note: BQOFFSETAFR is defined as a cell to cell relation
and is a symmetrical parameter.
3.4.15
Urgency conditions – external neighbour cell data
EXTPEN
68(198)
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLLOC, RLLOP.
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O&M:
–
Comments:
Handover penalty support.
The parameter EXTPEN shall be used for external
neighbouring cells, and defines whether the penalty can be
received by that cell (i.e. the BSC controlling that cell). It
tells whether the target BSC (and MSC) supports the
penalty handling or not. The value OFF activates an interBSC handling at urgency handover That allows urgency
handover to a cell in another BSC only if the mobile is
within a distance radiowise of KHYST or LHYST
(Ericsson 1) or HIHYST or LOHYST (Ericsson 3) from
the average cell border, i.e. without hysteresis.
The value ON activates the penalty handling that consists
of sending a handover cause value to the target BSC.
The cause value is interpreted by the target BSC as
“urgency handover”. Both TA urgency as well as bad
quality urgency can be recognised. The target BSC carries
out the punishment of the cell in the old BSC that was
abandoned. However, it uses the penalty parameter value
and penalty time of the new cell.
Note: EXTPEN should be set to OFF if the external
neighbouring cell belongs to a BSC from another vendor.
3.4.16
Urgency conditions – cell/subcell data
These parameters may be defined different for underlaid and overlaid
subcells. In case there is no subcell structure defined, they are defined
per cell.
QLIMDL
Type:
Numeral.
Range:
0 to 100.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
55.
Command:
RLLUC, RLLUP.
O&M:
–
Comments:
Quality limit downlink for handover. Urgency detection
parameter.
For AMR FR connections, the parameter QLIMDLAFR is
used.
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If the measured and filtered quality measurements, rxqual,
is above the quality limit on the downlink, then the serving
cell should be abandoned urgently if there exists a
neighbouring cell that can take over the connection. If no
such neighbouring cell exists no action is taken.
QLIMDLAFR
Type:
Numeral.
Range:
0 to 100.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
55.
Command:
RLLUC, RLLUP.
O&M:
–
Comments:
Downlink quality threshold for bad quality urgency
handovers for AMR FR connections.
QLIMUL
Type:
Numeral.
Range:
0 to 100.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
55.
Command:
RLLUC, RLLUP.
O&M:
–
Comments:
Quality limit uplink for handover. Urgency detection
parameter.
For AMR FR connections, the parameter QLIMULAFR is
used.
If the measured and filtered quality measurements, rxqual,
is above the quality limit on the uplink, then the serving
cell should be abandoned urgently if there exists a
neighbouring cell that can take over the connection. If no
such neighbouring cell exists no action is taken.
QLIMULAFR
70(198)
Type:
Numeral.
Range:
0 to 100.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
55.
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3.4.17
Command:
RLLUC, RLLUP.
O&M:
–
Comments:
Downlink quality threshold for bad quality urgency
handovers for AMR FR connections.
Handover failure – cell data
PSSHF
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
63.
Command:
RLLPC, RLLPP.
O&M:
–
Comments:
Signal strength penalty at handover failure.
This penalty is valid during PTIMHF.
When a handover to a cell fails due to signalling failure, a
penalty is assigned to that cell to avoid that the MS returns
to it immediately. The penalties are an amount of dB that
are subtracted from the measured and averaged signal
strength for the cell in question, rxlev.
PTIMHF
3.4.18
Type:
Numeral.
Range:
0 to 600.
Unit:
Seconds.
Default:
5.
Command:
RLLPC, RLLPP.
O&M:
–
Comments:
Penalty time at handover failure.
Signalling channel handover – BSC data
IBHOSICH
Type:
Identifier.
Range:
ON, OFF.
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Unit:
–
Default:
OFF.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Switch, which defines if, inter BSC handover on signalling
channel is allowed.
ON
OFF
Allowed.
Not allowed.
IHOSICH
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Switch, which defines if intra-cell handover on signalling
channel is allowed.
ON
OFF
3.4.19
Allowed.
Not allowed.
Signalling channel handover – cell data
SCHO
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
SDCCH handover switch.
SCHO is used to identify if handovers on SDCCH are
allowed in the cell. The handover procedure is the same as
for handover on the TCH, i.e. the locating function
prepares a ranking list and sends it to the handover
function.
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ON
Handovers on SDCCH are allowed. This applies to
both handovers from and to the cell.
OFF Handovers on SDCCH are not allowed. Handovers
from as well as to the cell are inhibited.
Note: To allow handover on SDCCH between two cells,
both cells must have SCHO = ON.
3.4.20
RPD load – cell data
CELLQ
Type:
Identifier.
Range:
HIGH, LOW.
Unit:
–
Default:
HIGH.
Command:
RLLUC, RLLUP.
O&M:
–
Comments:
Cell quality. CELLQ defines whether the cell is suitable
for Regional Processor Load (RPD) regulation or not.
HIGH
The cell is a cell where minor changes of radio
transmission quality can be expected.
LOW
The cell is a cell where radio transmission quality
can be expected to deteriorate rapidly.
The load of the RPD can be automatically regulated by
reducing the rate of locating calculations for the MSs in the
cells that are least likely to perform a handover or to be
subject to disconnection.
In the case of regulation the calculations are performed for
every second measurement result arrival (approximately
once per second). All arrived measurement results are
taken into account in the time evaluation of measurements.
The parameter CELLQ is used to define whether a cell is
suitable for regulation or not. If CELLQ takes the value
HIGH then the regulation can be performed, i.e. it is
assumed that there is no risk for an increasing number of
dropped calls if the rate of locating calculations is reduced.
If CELLQ takes the value LOW then the regulation is not
allowed.
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3.4.21
Disconnection algorithm – cell data
MAXTA
Type:
Numeral.
Range:
0 to 63 (normal cell).
0 to 219 (extended range cell).
Unit:
Bit periods (bp).
Default:
63.
Command:
RLLDC, RLLDP.
O&M:
–
Comments:
Maximum timing advance before an MS is considered lost.
If the measured timing advance value for an access burst is
equal to or greater than MAXTA, then the connection setup signalling is terminated by the system.
If the measured and averaged timing advance value for an
ongoing call is equal or greater than MAXTA, the call is
released.
The useful range of MAXTA is
0 to 219
0 to 133
boards.
0 to 63
Extended range cells with RBS2000.
Extended range cells with RBS200 using SPPNormal range cells.
Note: MAXTA should always be greater than the
parameter TALIM (page 66). MAXTA is a hard limit
compared to TALIM, which is a soft limit.
RLINKUP
Type:
Numeral.
Range:
1 to 63.
Unit:
SACCH periods (480 ms).
Default:
16.
Command:
RLLDC, RLLDP.
O&M:
–
Comments:
Radio link time-out. The maximum value of the radio link
counter for the uplink.
RLINKUP is used by the BSC to determine when to
disconnect the call upon repeated failure in decoding the
SACCH. The disconnection criterion is of the same type as
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the one specified for the MS in GSM 05.08, called the
“leaky bucket” criterion.
A counter that is given the value RLINKUP is started in
the BSC after the assignment of a dedicated channel. Two
units increase the counter if the SACCH data is
successfully decoded. One unit decreases it if it can not be
successfully decoded. If the counter reaches the value zero,
then a call release is initiated.
RLINKT
Type:
Numeral.
Range:
8 to 64 in steps of 4.
Unit:
SACCH periods (480 ms).
Default:
16.
Command:
RLSSC, RLSSP.
O&M:
–
Comments:
Radio Link time-out. The maximum value of the radio
downlink counter.
RLINKT is used by the MS to determine when to
disconnect the call upon repeated failure in decoding the
SACCH. The disconnection criterion is the “leaky bucket”
criterion specified in GSM 05.08.
A counter that is given the value RLINKT is started in the
MS after the assignment of a dedicated channel. Two units
increase the counter if the SACCH data is successfully
decoded. One unit decreases it if it cannot be successfully
decoded. If the counter reaches the value zero, then the call
release is initiated.
3.4.22
Handover power boost - cell data
HPBSTATE
Type:
Identifier.
Range:
ACTIVE, INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLPBI, RLPBP , RLPBE.
O&M:
–
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Comments:
Handover Power Boost State.
ACTIVE Handover power boost active.
INACTIVE
Handover power boost inactive.
If the feature Handover Power Boost is activated, the
originating BTS and the MS are ordered to transmit with
maximum allowed power during the handover.
3.5
Channel administration/Immediate assignment on
TCH
3.5.1
MSC controlling parameters
CRT
Type:
RCR-SCRT.
Range:
RCR:
SCRT:
DRSN.
Unit:
−
Default:
−
Command:
MGTEI, MGTEP.
O&M:
–
Comments:
Channel Rate and Type.
FR, DFR, DHR.
FR, HR, DFRC, DHRC, DFRN, DHRN, DRSC,
CRT is used to specify the channel rate and type
preference for each Radio Channel Requirement that can
be received from the MS. The parameter is set for the
teleservices Telephony, Auxiliary telephony and
Emergency call.
The following allowed RCR-SCRT combinations may be
used for CRT:
RCR:
FR Full Rate channel.
DFR Dual rate, Full Rate preferred.
DHR
Dual rate, Half Rate preferred.
SCRT:
FR Full Rate channel.
HR Half Rate channel.
DFRC
Dual rate, Full Rate preferred, Change allowed
after
first channel allocation as a result of the request.
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DHRC
Dual rate, Half Rate preferred, Change allowed
after
first channel allocation as a result of the request.
DFRN
Dual rate, Full Rate preferred, change not
allowed after first channel allocation as a result of the
request.
DHRN Dual rate, Half Rate preferred, change not
allowed after first channel allocation as a result of the
request.
DRSC
Dual Rate, channel preference indicated by the
Speech coder preference, changes between full rate
and half rate allowed after first channel allocation as a
result of the request.
DRSN
Dual Rate, channel preference indicated by the
Speech coder preference, changes between full rate
and half rate not allowed after first channel allocation
as a result of the request.
Example: CRT=FR-FR, DFR-DFRN, DHR-DHRC
Note:
RCR FR can only be combined with SCRT FR.
PSCVL
Type:
Identifier.
Range:
FRV1, FRV2, FRV3, HRV1, HRV2, HRV3.
Unit:
–
Default:
–
Command:
MGTEI, MGTEP.
O&M:
–
Comments:
Provided Speech Coder Version List.
The parameter is set for the teleservices Telephony,
Auxiliary telephony, Emergency call and Alternate
speech/facsimile.
FRV1
FRV2
FRV3
HRV1
HRV2
HRV3
Full Rate speech Version1.
Full Rate speech Version2.
Full Rate speech Version3.
Half Rate speech Version1.
Half Rate speech Version2.
Half Rate speech Version3.
PSCVL must be specified in accordance with the SCRT
part of CRT.
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3.5.2
BSC exchange property data
CHALLOC
Type:
Numeral.
Range:
0 to 2.
Unit:
–
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
CHALLOC is used in the channel allocation algorithm to
determine if a non-hopping TCH on the BCCH frequency
should be allocated with first, last or with no preference.
The following values are available:
0 No preference.
1 First preference.
2 Last preference.
EBANDINCLUDED
Type:
Numeral.
Range:
0 and 1.
Unit:
–
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments: EBANDINCLUDED is used to decide whether channels in
the P-GSM 900 band only or whether also GSM 900 G1
channels are to be considered for handling of the radio
features:
- Half Rate Packing
- Cell Load Sharing
- Subcell Load Distribution
- Adaptive Configuration of Logical Channels
- GPRS/EGPRS
The following values are available:
0 OFF. Only channels in the P-GSM 900 band are
considered.
1 ON. Channels in all available GSM 900 bands are
considered.
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MAXCHDATARATE
Type:
Numeral.
Range:
96 and 144.
Unit:
–
Default:
96.
Command:
RAEPC, RAEPP.
O&M:
–
Comments: MAXCHDATARATE indicates the maximum channel
data
rate allowed in the BSC. The channel data rates are 9.6 kb/s
(=96) and 14.4 kb/s (=144).
96 Max allowed data rate is 9.6 kbits/s per channel.
144
Max allowed data rate is 144.4 kbits/s per
channel.
SPEECHVERUSED
Type:
Numeral.
Range:
0 and 1.
Unit:
–
Default:
1.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
SPEECHVERUSED is used to decide if the used speech
version shall be placed at the top in the list of allowed
speech version at handover.
0 Do not place the used speech version at the top in the
list of allowed speech versions.
1 The used speech version shall be plated at the top of the
list of allowed speech versions.
TLDTH
Type:
Numeral.
Range:
0 to 100, 65355.
Unit:
%
Default:
65355
Command:
RAEPC, RAEPP.
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O&M:
–
Comments: TLDTH is a percentage value of the number of deblocked
TCH/FR from which an absolute threshold value is
calculated. The parameter is used in the feature Dynamic
half rate allocation. The feature can be turned off by setting
the parameter TLDTH=65535.
Depending on the value of the bit 0 (A) of GPRSPRIO,
see page 84, on-demand PDCH are counted as idle (A=0)
or busy (A=1) when the cell traffic level is calculated for
Dynamic Half Rate Allocation evaluations.
When the number of idle full rate TCHs in the cell is above
the value, full rate TCHs will have precedence over half
rate TCHs. When the number of idle full rate TCHs in the
cell is below or equal to the value, half rate TCHs will have
precedence over full rate TCHs. The parameter
EBANDINCLUDED decides which GSM900 sub-bands to
consider when calculating the number of deblocked and
idle full rate TCHs.
3.5.3
Multislot configuration - BSC data
BSCMC
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLCDC , RLCDP .
O&M:
–
Comments:
BSCMC Multiple Channel Switch.
Identifies if more than one full rate TCH are allowed to be
allocated for each MS connection in BSC internal cells.
ON
Multiple channels for each MS connection are
allowed in cells with the Multiple Channel switch MC
set to
ON.
OFF
Multiple channels are not allowed for any MS
connection in any cell, even if the Multiple Channel
switch MC is set to ON.
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3.5.4
Cell data
CMDR
Type:
Numeral.
Range:
96 and 144.
Unit:
–
Default:
144.
Command:
RLDRC , RLDRP
O&M:
–
Comments:
Maximum channel data rate.
CMDR is used to set the maximum channel data rate for
the
cell. The lowest value of CMDR and
MAXCHDATARATE will be the actual channel data rate
in the cell. The channel data rates are 9.6 kb/s (=96) and
14.4 kb/s (=144).
96 Max allowed data rate is 9.6 kbits/s per channel.
144
Max allowed data rate is 144.4 kbits/s per
channel.
CHAP
Type:
Numeral.
Range:
0 to 10.
Unit:
–
Default:
0.
Command:
RLHPC , RLHPP
O&M:
–
Comments:
Channel Allocation Profile.
Each channel allocation profile provides a channel
allocation strategy for all traffic situations. The strategies
differ with respect to the behaviour of the feature
Immediate assignment on TCH, the handling of GSM
Phase 1 and Phase 2 MSs and the allocation of a channel in
an OL subcell.
The following eight channel allocation profile are
available:
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CHAP = 0
Default
CHAP = 1
Immediate assignment on TCH,
SDCCH chosen first.
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CHAP = 2
Immediate assignment on TCH,
TCH chosen first,
GSM Phase 2 MSs,
Channel Needed provided by the MSC.
CHAP = 3
Immediate assignment on TCH,
TCH chosen first,
GSM Phase 2 MSs,
Channel Needed not provided by the MSC.
CHAP = 4
Immediate assignment on TCH,
TCH chosen first,
GSM Phase 1 MSs,
Channel Needed not provided by the MSC.
CHAP = 5
Overlaid subcell as last resort.
CHAP = 6
Immediate assignment on TCH,
SDCCH chosen first,
Overlaid subcell as last resort.
CHAP = 7
equals CHAP = 0.
CHAP = 8
BCCH in overlaid cell.
CHAP = 9
Inter cell handover and assignment to other
cell always to underlaid subcell (restriction).
CHAP = 10 Inter cell handover and assignment to other
cell always prioritising underlaid subcell.
NECI
Type:
Numeral.
Range:
0 and 1.
Unit:
–
Default:
0.
Command:
RLSSC , RLSSP.
O&M:
–
Comments:
New establishments cause indicator.
NECI is used to indicate to a GSM phase 2 MS whether to
use GSM phase 1 establishment (NECI = 0) causes or the
full set of GSM phase 2 establishment causes (NECI = 1).
0 New establishment causes are NOT supported.
1 New establishment causes are supported.
MC
82(198)
Type:
Identifier.
Range:
ON, OFF.
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Unit:
–
Default:
OFF.
Command:
RLCDC , RLCDP
O&M:
–
Comments:
Multiple Channel switch.
MC identifies if more than one full rate TCH are allowed
to be allocated for each MS connection in the cell.
ON
Multiple channels for each MS connection
allowed in
the cell.
OFF
Multiple channels are not allowed for any MS
connection in the cell.
3.6
GPRS/EGPRS Channel administration
3.6.1
BSC exchange property data
CHCODING
Type:
Identifier.
Range:
CS-1 or CS-2.
Unit:
–
Default:
CS-2.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
CHCODING is used to the GPRS channel-coding scheme
that will be used for the uplink. The BTS capabilities will
be taken into account when calculation the actual channel
coding scheme used in the cell. All BTS version supporting
GPRS also support CS-2, with the exception of early
versions of RBS2301. If this is the case CS-1 will be used
regardless of the setting of this parameter.
A cell plan optimised for speech will give similar or better
coverage for GPRS traffic for both CS-1 and CS-2
configurations.
GPRSNWMODE
Type:
Numeral.
Range:
0 to 3.
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Unit:
–
Default:
2.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
GPRSNWMODE sets the GPRS/EGPRS network
operation mode
The following values are available:
0 GPRS/EGPRS Network operation mode I, without
Master PDCH. The Gs interface between the MSC
and the SGSN shall be present. No master PDCH
will be allocated in the cell.
1 GPRS/EGPRS Network operation mode I, with Master
PDCH. The Gs interface between the MSC and the
SGSN shall be present. The first dedicated PDCH
allocated in the cell will be the master PDCH, see
the parameter FPDCH (see page 87)
2 GPRS/EGPRS Network operation mode II. No master
PDCH will be allocated in the cell.
3 GPRS/EGPRS Network operation mode III. The first
dedicated PDCH allocated in the cell will be the
master PDCH, see the parameter FPDCH (see
page 87)
GPRSPRIO
Type:
Numeral.
Range:
0 to 63.
Unit:
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Sets the priority between GPRS/EGPRS and the features
Dynamic Half Rate Allocation/Half Rate Packing, Cell
Load Sharing, Subcell Load Distribution and GSM-UMTS
Handover. Also, it is used to set the Pre-emption status of
the on-demand PDCH.
64 decimal values (6 bits) are possible for GPRSPRIO,
where each bit describes a function:
F E D C B A
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The combination of A, B and C bits is used to set how the
allocated on-demand PDCH will be counted - as idle or as
busy for the mentioned features.
F
C B A
Idle (A=0) or Busy (A=1) for
the features Dynamic Half Rate
Allocation/Half Rate Packing
Idle (B=0) or Busy (B=1) for the
feature Cell Load Sharing
Idle (C=0) or Busy (C=1) for the
feature Subcell Load Distribution
Idle (F=0) or Busy (F=1) for the
feature GSM-UMTS Handover
The E and D bits describe the Pre-emption status of the ondemand PDCH.
E D
00
All PDCH may be pre-empted
01
Non-essential PDCHs may be pre-empted (i.e.
not the ones with Timing Advance Information)
1x
CS is only allowed to pre-empt idle PDCHs
As an example, with GPRSPRIO=46 (1 01 1 1 0), ondemand PDCH will be counted as idle for the features
Dynamic Half Rate Allocation/Half Rate Packing, busy for
the feature Cell Load Sharing, busy for the feature Subcell
Load Distribution and busy for the feature GSM-UMTS
Handover. In the same time, only non-essential PDCHs
will be possible to pre-empt.
PILTIMER
Type:
Numeral.
Range:
1 to 3600.
Unit:
seconds.
Default:
20.
Command:
RAEPC, RAEPP.
O&M:
–
Comments: When an on-demand PDCH becomes idle it is placed in the
idle list for the packet switched domain and PILTIMER is
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started. When the PILTIMER expires for a PDCH the
channel is returned to circuit switched domain.
ONDEMANDGPHDEV
Type:
Numeral.
Range:
1 and 256.
Unit:
–
Default:
20.
Command:
RAEPC, RAEPP.
O&M:
–
Comments: ONDEMANDGPHDEV is used for setting the number of
reserved GPH devices in an RPP that can be used for ondemand PDCH only.
TBFDLLIMIT
Type:
Numeral.
Range:
1 to 8.
Unit:
-
Default:
2.
Command:
RAEPC, RAEPP.
O&M:
–
Comments: When all currently allocated PDCH have the
TBFDLLIMIT number of TBFs allocated an allocation
attempt of more on-demand PDCH is done. If the allocation
attempt fails, TBFs will be allocated on the existing PDCH,
up to and including the limit of 8, when congestion occurs.
TBFULLIMIT
Type:
Numeral.
Range:
1 to 6.
Unit:
-
Default:
2.
Command:
RAEPC, RAEPP.
O&M:
–
Comments: When all currently allocated PDCH have the
TBFULLIMIT number of TBFs allocated an allocation
attempt of more on-demand PDCH is done. If the allocation
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attempt fails, TBFs will be allocated on the existing PDCH,
up to and including the limit of 6, when congestion occurs.
3.6.2
Cell data
GPRS
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLGSI, RLGSE , RLGSP.
O&M:
–
Comments:
Activates/deactivates GPRS/EGPRS support in the cell.
FPDCH
Type:
Numeral.
Range:
0 to 8
0 to 4 (when extended range is defined per cell).
Unit:
-
Default:
0.
Command:
RLGSC, RLGSP.
O&M:
–
Comments: FPDCH is used to dedicate a number of traffic channels in
the cell for GPRS/EGPRS only. The dedicated PDCH can
not be pre-empted by circuit switched traffic. When a
master PDCH is wanted in the cell, i.e. when configured for
GPRSNWMODE 1 or 3 (see page 83) the first dedicated
PDCH will be configured as master PDCH.
PDCHALLOC
Type:
Identifier.
Range:
NOPREF, FIRST, LAST.
Unit:
–
Default:
NOPREF.
Command:
RLGSC, RLGSP.
O&M:
–
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Comments:
PDCHALLOC is used in the channel allocation algorithm
to determine if a non-hopping TCH on the BCCH
frequency should be allocated as PDCH with first, last or
with no preference.
The following values are available:
NOPREF
No preference for allocation of PDCH.
PDCH will be allocated on any frequency
chosen by the system.
FIRST
When allocating dedicated PDCH for the
first PSET, only non-hopping TCH on the
Broadcast Control Channel (BCCH)
frequency will be allocated as dedicated
PDCH.
When allocating dedicated PDCH for the
second PSET, TCH on any frequency other
than the non-hopping BCCH frequency
will be allocated as dedicated PDCH.
When allocating on-demand PDCH, nonhopping TCH on the BCCH frequency are
preferred, if available.
LAST
When allocating dedicated PDCH for the
first PSET, only TCH on any frequency
other than the non-hopping BCCH
frequency will be allocated as dedicated
PDCH.
When allocating dedicated PDCH for the
second PSET, TCH on any frequency
chosen by the system will be allocated as
dedicated PDCH.
When allocating on-demand PDCH, TCH
on any frequency other than the nonhopping BCCH frequency are preferred, if
available.
Note: If the BCCH is set in the overlaid subcell,
PDCHALLOC must not be set to the value FIRST.
PSKONBCCH
88(198)
Type:
Identifier.
Range:
ENABLED, DISABLED.
Unit:
–
Default:
ENABLED.
Command:
RLGSC, RLGSP.
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3.6.3
O&M:
–
Comments:
PSKONBCCH is used to disable the use of 8PSK on the
BCCH carrier.
Channel group data
NUMREQCS3CS4BPC
Type:
Numeral.
Range:
0 to 128.
Unit:
-
Default:
0.
Command:
RLBDC, RLBDP.
O&M:
–
Comments: The wanted number of BPCs in a channel group to be GTCH.
NUMREQEGPRSBPC
Type:
Numeral.
Range:
0 to 128.
Unit:
-
Default:
0.
Command:
RLBDC, RLBDP.
O&M:
–
Comments: The wanted number of BPCs in a channel group to be ETCH.
TN7BCCH
Type:
Identifier.
Range:
EGPRS, GPRS.
Unit:
-
Default:
GPRS.
Command:
RLBDC, RLBDP.
O&M:
–
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Comments: Indicates if Timeslot Number 7 on the BCCH frequency
can be configured with TCHs supporting EGPRS and
GPRS, or GPRS only.
TN7BCCH is only valid for the channel group 0.
EGPRS
TN7 on the BCCH frequency can be configured
with TCHs supporting both EGPRS and GPRS.
GPRS
TN7 on the BCCH frequency can only be
configured with TCHs supporting GPRS.
3.7
Dynamic MS Power Control
3.7.1
Cell data
The MS power level can be dynamically controlled during a connection.
The power control strategy is towards a desired signal strength value
received in the BTS.
The BSC calculates the new MS power level by using the data measured
by the BTS and the power level used by the MS, i.e. the signal strength
and the quality on the uplink and the parameters described below.
The MS can change the power level in steps of 2 dB with a maximum of
8 steps per SACCH period.
DMPSTATE
Type:
Identifier.
Range:
ACTIVE or INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLPCI, RLPCE, RLPCP .
O&M:
–
Comments:
Dynamic MS power control state.
The command RLPCI initiates MS dynamic power control
in a cell. The command is valid for both underlaid and
overlaid subcells.
AMRPCSTATE
90(198)
Type:
Identifier.
Range:
ACTIVE or INACTIVE.
Unit:
–
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Default:
INACTIVE.
Command:
RLAPI, RLAPE, RLAPP .
O&M:
–
Comments:
Adaptive Multi Rate (AMR) power control state.
The feature Dynamic MS Power Control must be activated
in the cell for the uplink AMR power control to work in
the cell. The feature Dynamic BTS Power Control must be
activated in the cell for the downlink AMR power control
to work in the cell.
3.7.2
Cell/subcell data
These parameters may be defined different for underlaid and overlaid
subcells. In case there is no subcell structure defined, they are defined
per cell.
SSDESUL
Type:
Numeral.
Range:
47 to 110.
Unit:
dBm (negative).
Default:
85.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Defines the target value for the desired signal strength
uplink as measured by the BTS in different parts of the
power control interval.
SSDESUL takes a positive value that represents the
corresponding negative value in calculations.
For AMR FR connections, SSDESULAFR is used.
SSDESULAFR
Type:
Numeral.
Range:
47 to 110.
Unit:
dBm (negative).
Default:
85.
Command:
RLAPC, RLAPP.
O&M:
–
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments:
For AMR FR connections defines the target value for the
desired signal strength uplink as measured by the BTS in
different parts of the power control interval.
SSDESULAFR takes a positive value that represents the
corresponding negative value in calculations.
SSLENUL
Type:
Numeral.
Range:
3 to 15.
Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Length of stationary signal strength filter, uplink.
LCOMPUL
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
70.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Path loss compensator factor, uplink. When set to zero, no
power control towards SSDESUL is performed.
QDESUL
Type:
Numeral.
Range:
0 to 70.
Unit:
dtqu.
Default:
20.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Desired quality, uplink.
For AMR FR connections, QDESULAFR is used.
92(198)
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QDESULAFR
Type:
Numeral.
Range:
0 to 70.
Unit:
dtqu.
Default:
20.
Command:
RLAPC, RLAPP.
O&M:
–
Comments:
Desired quality, uplink for AMR FR connections.
QLENUL
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
8.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Length of the uplink quality filter.
QCOMPUL
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
30.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Quality deviation compensation factor, uplink. When set to
zero, no quality compensation is performed.
REGINTUL
Type:
Numeral.
Range:
1 to 30.
Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLPCC, RLPCP.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
O&M:
–
Comments:
Regulation interval, stationary, uplink.
MS power regulation is performed at intervals specified by
REGINTUL. A new power order is issued only if the
calculated power level is different from the current MS
power level.
DTXFUL
Type:
Numeral.
Range:
0 to 40.
Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Number of measurement periods before the full set of
measurements are used.
The measurement results sent to the BSC every SACCH
period (480 ms) include a full set of measurements and a
subset of measurements. The full set of measurements is
performed on each TDMA frame in a basic physical
channel. The subset of measurements is performed on
those TDMA frames in the basic physical where
transmission is guaranteed, see GSM 05.08.
The power control algorithm uses the subset if either DTX
is used on a TCH or during a time period after the call has
just been established on a TCH. This time period is
specified by the parameter DTXFUL. In all other cases the
power control algorithm uses the full set.
3.8
GPRS/EGPRS Dynamic MS Power Control
GPRS/EGPRS Dynamic MS Power Control controls the output power of
an MS in GPRS/EGPRS during a connection. The controlling strategy is
that desired signal strength shall be received in the BTS.
3.8.1
BSC exchange property data
ALPHA
94(198)
Type:
Numeral.
Range:
0 to 10.
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3.8.2
Unit:
0.1
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
ALPHA is sent from the BSC to the MS and decides the
level of reduction of the MS output power in relation to the
path loss. The values are given as a multiple of 10, i.e. the
value 5 means the reduction level of 0.5.
Cell data
GAMMA
3.9
Type:
Numeral.
Range:
0 to 62, even values.
Unit:
dB.
Default:
0.
Command:
RLGSC, RLGSP.
O&M:
–
Comments:
GAMMA is sent from the BSC to the MS to give a target
value for the received signal strength at the BTS.
Dynamic BTS power control
The BTS power level can be dynamically controlled during a connection.
The power control strategy is towards a desired signal strength value
received in the MS.
The BSC calculates the new BTS power level by using the data measured
by the MS, i.e. the signal strength and the quality on the downlink TCH
carriers and the parameters described below. A compensation is
performed in the case of frequency hopping, which takes into
consideration that bursts received and measured by the MS may have
been transmitted at different power levels. The power level on channels
at the BCCH frequency is not controlled.
The BTS can change its power level in steps of 2 dB, while the
maximum configurable change is 30 dB.
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3.9.1
Cell data
DBPSTATE
Type:
Identifier.
Range:
ACTIVE/INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLBCI, RLBCE, RLBCP.
O&M:
–
Comments:
Dynamic BTS power control state.
The command RLBCI initiates BTS dynamic power
control in a cell. The command is valid for both underlaid
and overlaid subcells.
AMRPCSTATE
Type:
Identifier.
Range:
ACTIVE or INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLAPI, RLAPE, RLAPP .
O&M:
–
Comments:
Adaptive Multi Rate (AMR) power control state.
The feature Dynamic MS Power Control must be activated
in the cell for the uplink AMR power control to work in
the cell. The feature Dynamic BTS Power Control must be
activated in the cell for the downlink AMR power control
to work in the cell.
3.9.2
Cell/subcell data
These parameters may be defined different for underlaid and overlaid
subcells. In case there is no subcell structure defined, they are defined
per cell.
SDCCHREG
96(198)
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
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Default:
OFF.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
SDCCH power control switch. Identifies if power control
on SDCCH is allowed on non-BCCH frequencies.
ON
OFF
Power control on SDCCH allowed.
Power control on SDCCH not allowed.
SSDESDL
Type:
Numeral.
Range:
47 to 110.
Unit:
dBm (negative).
Default:
70.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Defines the target value for the desired signal strength
downlink as measured by the MS in different parts of the
power control interval.
SSDESDL takes a positive value that represents the
corresponding negative value in the calculations.
For AMR FR connections, SSDESDLAFR is used.
SSDESDLAFR
Type:
Numeral.
Range:
47 to 110.
Unit:
dBm (negative).
Default:
70.
Command:
RLAPC, RLAPP.
O&M:
–
Comments:
For AMR FR connections defines the target value for the
desired signal strength downlink as measured by the MS in
different parts of the power control interval.
SSDESDLAFR takes a positive value that represents the
corresponding negative value in calculations.
REGINTDL
Type:
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Numeral.
97(198)
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Range:
1 to 10.
Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Regulation interval, downlink.
Defines the minimum interval between power order
commands.
SSLENDL
Type:
Numeral.
Range:
3 to 15.
Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Length of downlink signal strength filter.
LCOMPDL
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
70.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Path loss compensator factor, downlink. When set to zero
there is no power control towards SSDESDL.
QDESDL
98(198)
Type:
Numeral.
Range:
0 to 70.
Unit:
dtqu.
Default:
20.
Command:
RLBCC, RLBCP.
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O&M:
–
Comments:
Desired quality, downlink.
For AMR FR connections QDESDLAFR is used.
QDESDLAFR
Type:
Numeral.
Range:
0 to 70.
Unit:
dtqu.
Default:
20.
Command:
RLAPC, RLAPP.
O&M:
–
Comments:
Desired quality, downlink for AMR FR connections.
QCOMPDL
Type:
Numeral.
Range:
0 to 60.
Unit:
%.
Default:
30.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Quality deviation compensation factor, downlink. When
set to zero, no quality compensation is performed.
QLENDL
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
8.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Length of the downlink quality filter.
BSPWRMIN
Type:
Numeral.
Range:
−20 to +50.
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Unit:
dBm.
Default:
−20.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Minimum allowed output power for the BTS at the
locating reference point, on the non-BCCH frequencies.
Normally, the down control of the BTS output power will
continue according to the calculated power order or until
the hardware limit of the BTS has been reached. If one
desires to stop the down control at a higher level,
BSPWRMIN can be used. If BSPWRMIN is set to a
higher value than the hardware limit the power control will
stop at BSPWRMIN.
As the BSC does not accept negative parameters
BSPWRMIN is implemented as two different parameters,
BSPWRMINN (negative value) and BSPWRMINP (zero
or positive value).
3.10
Discontinuous Transmission
3.10.1
Cell data
DTXD
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLCXC, RLCXP.
O&M:
–
Comments:
Discontinuous Transmission Downlink. With downlink
DTX ON the transmitter in the BTS is switched off during
pauses in speech or data transmission.
ON
OFF
DTX downlink enabled in the BSC for the cell.
DTX downlink disabled in the BSC for the cell.
The DTXD parameter is defined on a per cell basis and the
function affects all TCHs allocated on the non BCCH
carrier in the cell, for both speech and non-transparent data
transmission.
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DTXU
Type:
Numeral.
Range:
0 to 2.
Unit:
–
Default:
−
Command:
RLSSC, RLSSP.
O&M:
–
Comments:
Uplink DTX indicator.
0 The MSs may use uplink discontinuous transmission.
1 The MSs shall use uplink discontinuous transmission.
2 The MSs must not use uplink discontinuous
transmission.
Uplink discontinuous transmission means that the MS does
not transmit continuously, but only when necessary, thus
being able to save batteries (GSM 04.08, section 10.5.2.3).
3.11
Frequency hopping
3.11.1
Channel group data
HOP
Type:
Identifier.
Range:
ON, OFF, TCH.
Unit:
–
Default:
OFF.
Command:
RLCHC, RLCFP.
O&M:
When changing the parameter from OFF to ON or TCH all
ongoing calls in the channel group might be dropped.
Comments:
Frequency hopping status.
ON
The hopping status for the channel group is
hopping for
TCH and SDCCH.
OFF
The hopping status for the channel group is non
-hopping.
TCH
The hopping status for the channel group is
hopping for
TCH only.
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SDCCHs as well as TCHs can hop. A BCCH will not hop
even if it belongs to a channel group defined as hopping.
HSN
Type:
Numeral.
Range:
0 to 63.
Unit:
–
Default:
–
Command:
RLCHC, RLCFP.
O&M:
Changing of this parameter might cause all ongoing calls in
the channel group to be dropped.
Comments:
Hopping sequence number.
The hopping BPC is transmitted on a set of frequencies
included in a Hopping Frequency Set (HFS). The order of
the frequencies to transmit on is defined by the hopping
sequence number HSN, as described in GSM 05.02.
HSN = 0
cyclic hopping sequence.
HSN = 1 to 63
pseudo random sequences.
3.11.2
Hardware characteristic data
FHOP
Type:
Identifier.
Range:
BB, SY.
Unit:
–
Default:
−
Command:
RXMOC, RXMOP
O&M:
The parameter is only allowed to be changed when the TG
is out of service.
Comments:
Frequency Hopping.
The frequency hopping to be performed in the TG.
BB
SY
Baseband hopping.
Synthesiser hopping.
Frequency hopping can be achieved by two methods,
baseband or synthesiser hopping. The parameter FHOP
indicates the frequency hopping mode in the TG. When the
TG is connected to a filter combiner only baseband
hopping can be used.
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When baseband hopping is performed each TX is
transmitting on a fixed frequency, i.e. frequency hopping
for a basic physical channel (BPC) is obtained by
switching TXs between each TDMA frame.
For synthesiser hopping the TX switches frequencies for
every TDMA frame sent. In other words, each BPC is
carried by one single TX, except when a BCCH burst is
transmitted. The BCCH burst is in that case carried by the
TX that transmits the BCCH frequency.
COMB
Type:
Identifier.
Range:
FLT, HYB.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMOP.
O&M:
The parameter is only allowed to be changed when the TG
is out of service.
Comments:
Combiner type used in the TG.
FLT
HYB
Filter combiner.
Hybrid combiner.
In case of a filter combiner, only baseband hopping can be
provided, while hybrid combiners support both baseband
and synthesiser hopping.
CONFMD
Type:
Identifier.
Range:
NODEL, CMD, FASTREC, MINDIST.
Unit:
–
Default:
NODEL.
Command:
RXMSC, RXMOC, RXMOP.
O&M:
The parameter is only allowed to be changed when the TG
is out of service.
Comments:
Configuration method.
Indicates the method to configure BTS equipment. All
configurations are done per channel group. Within a
channel group, each hopping group is configured one by
one. A hopping group is a group of BPCs in the same cell,
using the same timeslot number in the TDMA frame but on
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different transceiver, configured so that they are all
hopping using the same set of frequencies.
NODEL
Indicates that no BPC can be deleted as a
result of a command ordered hopping
frequency set (HFS) extension. A
command ordered HFS Extension is not
permitted for the TG. No HFS Extension is
performed when previously faulty BTS
equipment recovers. Consequently,
recovered BTS equipment may not be fully
utilised.
CMD
Indicates that a command ordered HFS
Extension can be performed for the TG. No
HFS extension is performed when
previously faulty BTS equipment recovers.
Consequently, recovered BTS equipment
may not be fully utilised. If a HFS
Extension is ordered by command then all
available BTS equipment (where required)
is fully utilised.
MINDIST
Indicates that disturbance of ongoing
traffic is minimized. HFS Extension is
performed automatically and immediately
when required.
FASTREC
Indicates that maximum traffic capacity is
recovered as fast as possible. HFS
Extension is performed automatically and
immediately when required.
3.12
MAIO Management
3.12.1
Channel group data
HOP
104(198)
Type:
Identifier.
Range:
ON, OFF, TCH.
Unit:
–
Default:
OFF.
Command:
RLCHC, RLCFP.
O&M:
When changing the parameter from OFF to ON or TCH all
ongoing calls in the channel group might be dropped.
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Comments:
Frequency hopping status.
ON
The hopping status for the channel group is
hopping for
TCH and SDCCH.
OFF
The hopping status for the channel group is non
hopping.
TCH
The hopping status for the channel group is
hopping for
TCH only.
SDCCHs as well as TCHs can hop. A BCCH will not hop
even if it belongs to a channel group defined as hopping.
HSN
Type:
Numeral.
Range:
0 to 63.
Unit:
–
Default:
–
Command:
RLCHC, RLCFP.
O&M:
Changing of this parameter might cause all ongoing calls in
the channel group to be dropped.
Comments:
Hopping sequence number.
The hopping BPC is transmitted on a set of frequencies
included in a Hopping Frequency Set (HFS). The order of
the frequencies to transmit on is defined by the hopping
sequence number HSN, as described in GSM 05.02.
HSN = 0
cyclic hopping sequence.
HSN = 1 to 63
pseudo random sequences.
MAIO
Type:
Numeral.
Range:
0 to 31 or DEFAULT.
Unit:
–
Default:
DEFAULT
Command:
RLCHC, RLCFP.
O&M:
Changing of this parameter might cause all ongoing calls in
the channel group to be dropped.
Comments:
Mobile Allocation Index Offset.
MAIO is a parameter that will allow the operator to
specify a list of up to 32 MAIO values, in the order in
which they are to be allocated to a channel group. This
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parameter can also be set to DEFAULT, which removes the
manual MAIO list in favour for the default MAIO list.
The number of MAIO values in the list stretches from 0 up
to one less than the number of frequencies in the HFS. E.g.
If there are 9 frequencies in the HFS, the MAIO list will
contain the values 0-8.
The order of the MAIO values in the default list is arranged
in a "first even then odd MAIO values" manner. This
means that the beginning of the list will consist of all even
MAIO values in ascending order. After these even values
all the odd values are arranged in ascending order, e.g. for a
hopping group with 9 frequencies the default list will be 0,
2, 4, 6, 8, 1, 3, 5 and 7.
The actual MAIO values to be used for a channel group
depend on the number of TRXs in the channel group. If e.g.
three TRXs are used for a CHGR, only the first three
MAIO values in the MAIO list will be used. With 9
frequencies in the hopping group and three TRX, the used
default MAIO values would be 0, 2 and 4. The remaining
values will not be used unless additional TRXs are added.
3.13
Intra cell handover
3.13.1
Cell / subcell data
These parameters may be defined different for underlaid and overlaid
subcells. In case there is no subcell structure defined, they are defined
per cell.
IHO
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Intra cell handover switch.
ON
OFF
106(198)
Intra cell handover is allowed.
Intra cell handover is not allowed.
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Intra cell handover is a channel change between two
channels within the same subcell and if certain conditions
are fulfilled a subcell change within a cell.
TMAXIHO
Type:
Numeral.
Range:
0 to 60.
Unit:
Seconds.
Default:
6.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Timer for handover counter.
The handover counter is 0 initially. When an intra-cell
handover occurs, the counter is incremented by 1 and a
timer is started. If another intra cell handover occurs before
the timer has expired, the counter is incremented again by
1 and the timer is restarted. If the timer expires, the counter
is set to 1. The process continues until the counter reaches
its maximum value specified by MAXIHO. In that case
the counter is set to 0 and further intra-cell handover
attempts are inhibited during a time interval determined by
TIHO. This timer will not start before TINIT has elapsed.
TMAXIHO defines the time interval for the abovementioned timer.
TIHO
Type:
Numeral.
Range:
0 to 60.
Unit:
Seconds.
Default:
10.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Intra cell handover inhibition timer.
MAXIHO
Type:
Numeral.
Range:
0 to 15.
Unit:
–
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Default:
3.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Maximum number of consecutive intra-cell handovers.
QOFFSETUL
Type:
Numeral.
Range:
−50 to +50.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
0.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for quality uplink.
In the locating procedure for intra-cell handover, an
algorithm is used to calculate the allowed quality for
measured signal strength. Each measured signal strength
value plus corresponding signal strength offset corresponds
to a calculated allowed quality level. If the measured
quality level, RXQUAL, is worse than the calculated
allowed quality level for the measured signal strength plus
a corresponding quality offset, an intra cell handover is
requested. The algorithm is applied to both uplink and
downlink signal strength and quality measurements.
As the BSC does not accept negative parameters,
QOFFSETUL is implemented as two different
parameters, QOFFSETULN (negative value) and
QOFFSETULP (zero or positive value).
For AMR FR connections, QOFFSETULAFR is used.
QOFFSETULAFR
108(198)
Type:
Numeral.
Range:
−50 to +50.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
0.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for quality uplink for AMR FR connections.
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As the BSC does not accept negative parameters,
QOFFSETULAFR is implemented as two different
parameters, QOFFSETULAFRN (negative value) and
QOFFSETULAFRP (zero or positive value).
QOFFSETDL
Type:
Numeral.
Range:
−50 to +50.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
0.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for quality downlink.
As the BSC does not accept negative parameters,
QOFFSETDL is implemented as two different
parameters, QOFFSETDLN (negative value) and
QOFFSETDLP (zero or positive value).
For AMR FR connections, QOFFSETDLAFR is used.
QOFFSETDLAFR
Type:
Numeral.
Range:
−50 to +50.
Unit:
Deci transformed GSM quality units (dtqu).
Default:
0.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for quality downlink for AMR FR connections.
As the BSC does not accept negative parameters,
QOFFSETDLAFR is implemented as two different
parameters, QOFFSETDLAFRN (negative value) and
QOFFSETDLAFRP (zero or positive value).
SSOFFSETUL
Type:
Numeral.
Range:
−30 to +30.
Unit:
dB.
Default:
0.
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Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for signal strength uplink.
As the BSC does not accept negative parameters
SSOFFSETUL is implemented as two different
parameters, SSOFFSETULN (negative value) and
SSOFFSETULP (zero or positive value).
For AMR FR connections, SSOFFSETULAFR is used.
SSOFFSETULAFR
Type:
Numeral.
Range:
−30 to +30.
Unit:
dB.
Default:
0.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for signal strength uplink for AMR FR connections.
As the BSC does not accept negative parameters
SSOFFSETULAFR is implemented as two different
parameters, SSOFFSETULAFRN (negative value) and
SSOFFSETULAFRP (zero or positive value).
SSOFFSETDL
Type:
Numeral.
Range:
−30 to +30.
Unit:
dB.
Default:
0.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for signal strength downlink.
As the BSC does not accept negative parameters
SSOFFSETDL is implemented as two different
parameters, SSOFFSETDLN (negative value) and
SSOFFSETDLP (zero or positive value).
For AMR FR connections, SSOFFSETDLAFR is used.
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SSOFFSETDLAFR
Type:
Numeral.
Range:
−30 to +30.
Unit:
dB.
Default:
0.
Command:
RLIHC, RLIHP.
O&M:
–
Comments:
Offset for signal strength downlink for AMR FR
connections.
As the BSC does not accept negative parameters
SSOFFSETDLAFR is implemented as two different
parameters, SSOFFSETDLAFRN (negative value) and
SSOFFSETDLAFRP (zero or positive value).
3.14
Assignment to other cell
3.14.1
BSC data
ASSOC
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Switch which defines if assignment to cells other than
serving cell is allowed, i.e. instead of allocating a TCH
within the serving cell a TCH is allocated in another cell
during assignment.
ON
OFF
Allowed.
Not allowed.
IBHOASS
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
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Default:
OFF.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Switch, which defines if, inter BSC handover is allowed
during assignment.
ON
OFF
3.14.2
Allowed.
Not allowed.
Cell data
AW
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
Assignment to worse cell switch. Identifies if assignment
to worse cell is allowed from that cell.
Assignment is a phase during call set up. When the call is
established on an SDCCH and is through connected in the
MSC, the MSC sends an assignment request to the BSC to
order channel allocation.
Assignment to worse cell is a feature, which allows
allocation of a TCH in a cell ranked worse in the locating
procedure than the serving cell.
ON
OFF
3.14.3
Assignment to worse cell is allowed.
Assignment to worse cell is not allowed.
Neighbour cell data
CAND
112(198)
Type:
Identifier.
Range:
AWN, NHN, BOTH.
Unit:
–
Default:
BOTH.
Command:
RLNRC, RLNRP.
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O&M:
–
Comments:
Candidate type.
Indicates in which cases the related cell shall be treated as
a possible handover candidate.
AWN
Neighbour at assignment to worse cell.
NHN
Neighbour at normal handover and at
assignment
to better cell.
BOTH
Both of the above.
AWOFFSET
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
3.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Signal strength region where assignment to worse cell is
allowed.
AWOFFSET and BQOFFSET are used to define the
regions along the cell border where assignment to worse
cell and bad quality urgency handover are allowed.
3.15
Overlaid/underlaid subcells / Subcell Load
Distribution
The serving area of an overlaid subcell is defined by four parameters.
Two of the parameters are related to the measured signal strength and
two are related to timing advance. This implies that there are two ways of
restricting the size of an overlaid subcell; by restricting the signal
strength and by limiting the cell radius.
By the use of subcell load distribution, the system attempts to keep as
much traffic in the underlaid cells as possible.
Note: Subcell Load Distribution evaluations are not performed at all for
channels in multislot configurations.
3.15.1
BSC exchange property data
O&M:
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Comments:SCLDTIMEINT
Type:
Numeral.
Range:
100 to 1000.
Unit:
ms.
Default:
100.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Time interval for checking the level of underlaid subcell
idle TCHs for cells active for Subcell Load Distribution.
The time interval values shall be given in multiples of 100
milliseconds.
3.15.2
Cell data
SCLD
Type:
Identifier.
Range:
ON, OFF.
Unit:
−
Default:
OFF.
Command:
RLLLC, RLLLP.
O&M:
–
Comments:
Subcell Load Distribution status.
ON
OFF
Cell active for Subcell Load Distribution.
Cell not active for Subcell Load Distribution.
SCLDLL
114(198)
Type:
Numeral.
Range:
0 to 99.
Unit:
%.
Default:
20.
Command:
RLLLC, RLLLP.
O&M:
–
Comments:
Subcell Load Distribution Lower Limit.
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Percentage level of idle full rate capable TCHs in the
underlaid cell, at or below which Subcell Load
Distribution from underlaid to overlaid subcell will be
attempted.
Depending on the value of the bit 2 (C) of GPRSPRIO,
see page 84, on-demand PDCH are counted as idle (C=0)
or busy (C=1) when the cell traffic level is calculated for
Subcell Load Distribution evaluations.
SCLDLL must be less than SCLDUL.
SCLDUL
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
30.
Command:
RLLLC, RLLLP.
O&M:
–
Comments:
Subcell Load Distribution Upper Limit.
Percentage level of idle full rate capable TCHs in the
underlaid cell, above which Subcell Load Distribution
from overlaid to underlaid subcell will be attempted.
3.15.3
Overlaid subcell data
LOL
Type:
Numeral.
Range:
0 to 200.
Unit:
dB.
Default:
–
Command:
RLOLC, RLOLP.
O&M:
–
Comments:
Pathloss threshold.
Parameter LOL has different meaning depending on
whether Subcell Load Distribution is activated or not.
Subcell Load Distribution is not activated:
When serving cell is the underlaid subcell, a change to the
corresponding overlaid subcell is requested when:
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L ≤ LOL − LOLHYST and
TA < TAOL − TAOLHYST.
where L is the downlink path loss and TA is the timing
advance.
When serving cell is the overlaid subcell, a change to the
corresponding underlaid subcell is requested when:
L > LOL + LOLHYST or
TA ≥ TAOL + TAOLHYST
Subcell Load Distribution is activated:
To be allowed to make a subcell change from the UL to the
UL, an MS must fulfil:
L < LOL
TA ≤ TAOL
and
When serving cell is the OL subcell, a change to the
corresponding UL subcell is requested when
L ≥ LOL + LOLHYST or
TA ≥ TAOL + TAOLHYST
LOLHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
3.
Command:
RLOLC, RLOLP.
O&M:
–
Comments:
Hysteresis for pathloss.
TAOL
116(198)
Type:
Numeral.
Range:
0 to 61.
Unit:
Bit periods (bp).
Default:
–
Command:
RLOLC, RLOLP.
O&M:
–
Comments:
Timing advance threshold. See the comments of LOL.
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TAOLHYST
3.16
Type:
Numeral.
Range:
0 to 61.
Unit:
Bit periods (bp).
Default:
0.
Command:
RLOLC, RLOLP.
O&M:
–
Comments:
Hysteresis for timing advance.
Hierarchical cell structures
Note: In a bad quality urgency situation or at assignment if assignment to
worse cell is permitted, HCS (Hierarchical Cell Structure) ranking is
omitted.
3.16.1
BSC data
HCSBANDHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
2.
Command:
RLHBC, RLHBP.
O&M:
–
Comments:
HCS band hysteresis.
The signal strength hysteresis for the HCSBAND
threshold.
THO
Type:
Numeral.
Range:
10 to 100.
Unit:
Seconds.
Default:
30.
Command:
RLLBC, RLLBP.
O&M:
–
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Comments:
Time interval for measuring the number of handovers
allowed (NHO) before an MS is considered as a fast
moving mobile.
This will only be performed if the feature Handling of fastmoving mobiles is activated in the cell (FASTMSREG).
NHO
Type:
Numeral.
Range:
2 to 10.
Unit:
−
Default:
3.
Command:
RLLBC, RLLBP.
O&M:
–
Comments:
Number of handovers during THO that are allowed before
an MS is considered as a fast moving mobile. If the
number exceeds or equals NHO, the MS attempts to go to
the strongest higher layer cell at the next handover.
This will only be performed if the feature Handling of fastmoving mobiles is activated in the cell (FASTMSREG).
3.16.2
HCS Band data
HCSBAND
Type:
Numeral.
Range:
1 to 8.
Unit:
-
Default:
-
Command:
RLHBC, RLHBP.
O&M:
–
Comments:
Hierarchical Cell Structure band.
HCSBAND This prioritises groups of layers. HCS band 1
has the highest priority.
HCSBANDTHR
118(198)
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
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Default:
95.
Command:
RLHBC, RLHBP.
O&M:
–
Comments: The signal strength threshold prioritises cells within a
HCSBAND.
HCSBANDTHR takes a positive value, which represents
the corresponding negative value in calculations.
LAYER
Type:
Numeral.
Range:
1 to 8.
Unit:
–
Default:
-
Command:
RLHBC, RLHBP.
O&M:
–
Comments:
Cell layer.
LAYER defines which cell layers belong to the specified
HCSBAND. Layer 1 has the highest priority.
The layers must be defined in an increasing order. For
instance, if layer 2 belongs to HCSBAND 1, it is
impossible to set layer 1 in HCSBAND 2
With eight layers it is possible to assign unique layers to
indoor cells, microcells, macrocells and possibly umbrella
cells of each system type. The first issue here is to define
the HCSBAND and prioritise them in an efficient way
with respect to capacity. The low loaded system type
should have priority over the higher loaded system type.
Dedicated sub bands for indoor or microcells should have
priority over larger cells within the own system type. Each
HCS band may be further divided into indoor cell
prioritised over microcells prioritised over macrocells.
3.16.3
Cell data
LAYER
Type:
Numeral.
Range:
1 to 8.
Unit:
–
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Default:
2.
Command:
RLLHC, RLLHP.
O&M:
–
Comments:
Cell layer, i.e. the priority of the cell.
Each cell belongs to a layer. A layer is connected to a
HCSBAND with the command RLHBC. Layer 1 has the
highest priority. It is recommended that the layers are
defined in increasing order connected to the size of the area
the cells cover.
Numeral 1 ~ 3 (HCS with 3 layers and no HCS band)
Numeral 1 ~ 8 (HCS with 8 layers and 8 HCS bands)
The HCS feature with 3 layers allows building a network in
a two- or three-layered structure. The higher layers can for
example be used for large cells and the lower for small
cells. Cells in layer 1 have higher priority than cells in
layer 2, which in turn have higher priority than cells in
layer 3.
With eight layers it is possible to assign unique layers to
indoor cells, microcells, macrocells and possibly umbrella
cells of each system type. The first issue here is to define
the HCSBAND and prioritise them in an efficient way
with respect to capacity. The low loaded system type
should have priority over the higher loaded system type.
Dedicated sub bands for indoor or microcells should have
priority over larger cells within the own system type. Each
HCS band may be further divided into indoor cell
prioritised over microcells prioritised over macrocells.
LAYERTHR
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
Default:
75.
Command:
RLLHC, RLLHP.
O&M:
–
Comments: The signal strength threshold is used for ranking of cells in
different layers within each HCSBAND.
LAYERTHR takes a positive value, which represents the
corresponding negative value in calculations.
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LAYERHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
2.
Command:
RLLHC, RLLHP.
O&M:
–
Comments: Layer hysteresis. The signal strength hysteresis is used for
ranking cells in different layers within each HCSBAND.
PSSTEMP
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
0.
Command:
RLLHC, RLLHP.
O&M:
–
Comments:
Signal strength penalty temporary offset.
When a fast moving MS connected to a higher layer (lower
priority) cell passes through a lower layer (higher priority)
cell's coverage area, it might be undesirable that the MS
performs a handover to the lower layer cell. Therefore a
penalty, PSSTEMP, can be temporarily assigned to the
lower layer cell while a timer is running. The timer starts
when the lower layer cell is first reported as a neighbour
and runs for a period specified by PTIMTEMP.
PTIMTEMP
Type:
Numeral.
Range:
0 to 600.
Unit:
Seconds.
Default:
0.
Command:
RLLHC, RLLHP.
O&M:
–
Comments:
Penalty duration.
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PTIMTEMP specifies the duration during which
PSSTEMP is valid.
FASTMSREG
Type:
Identifier.
Range:
ON, OFF.
Unit:
−
Default:
OFF.
Command:
RLLHC, RLLHP.
O&M:
–
Comments:
Handling of fast-moving mobiles switch.
ON
OFF
3.17
Extended range
3.17.1
Cell data
Handling of fast-moving mobiles switched on.
Handling of fast-moving mobiles switched off.
XRANGE
Type:
Identifier.
Range:
YES, NO.
Unit:
–
Default:
NO.
Command:
RLDEC, RLDEP.
O&M:
The parameter is only allowed to be changed in cell state
HALTED.
Comments:
Extended range cell.
If the cell is an extended range cell, traffic at a distance of
greater than 35 km between the MS and the BTS can be
supported
YES
NO
The cell is an extended range cell.
The cell is a normal cell.
The purpose of the function Extended Range is to provide
Ericsson’s GSM system with a possibility to carry traffic at
a larger distance from the base station than the normal
GSM range of 35 km. In sparsely populated areas such as
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deserts, coastal areas, maritime environments etc., large
cells could be valuable.
In order to configure cells with both normal and extended
range channels, a subcell structure shall be used. The
normal range channels will then be placed in the overlaid
cell, while the extended range channels will be in the
underlaid cell.
Note 1:
Extended range is only supported by the RBS 200 using
SPP-boards. RBS 200 can only support traffic up to a
distance of 72 km. RBS2000 hardware supports the full
range of up to 121 km.
Note 2:
This parameter can only be set for internal cells.
MAXTA
Type:
Numeral.
Range:
0 to 63 (normal cell).
0 to 219 (extended range cell).
Unit:
Bit periods (bp).
Default:
63.
Command:
RLLDC, RLLDP.
O&M:
–
Comments:
Maximum timing advance before an MS is considered lost.
If the measured timing advance value for an access burst is
equal to or greater than MAXTA, then the connection setup signalling is terminated by the system.
If the measured and averaged timing advance value for an
ongoing call is equal or greater than MAXTA, the call is
released.
The useful range of MAXTA is
0 to 219
0 to 133
boards.
0 to 63
Extended range cells with RBS2000.
Extended range cells with RBS200 using SPPNormal range cells.
Note: MAXTA should always be greater than the
parameter TALIM (page 124). MAXTA is a hard limit
compared to TALIM, which is a soft limit.
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TALIM
Type:
Numeral.
Range:
0 to 63 (normal range cell).
0 to 219 (extended range cell).
Unit:
Bit periods (bp).
Default:
62.
Command:
RLLUC, RLLUP.
O&M:
–
Comments:
Timing advance limit for handover. Urgency detection
parameter.
TALIM determines the maximum timing advance that the
MS is recommended to use in the cell.
If the measured and averaged timing advance value is
equal to or greater than TALIM, the cell must be
abandoned urgently if there exists a neighbouring cell that
can take over the connection. If no such cell exists no
action is taken.
The useful range of TALIM is
0 to 219
0 to 133
boards.
0 to 63
3.18
Double BA lists
3.18.1
Cell data
Extended range cells with RBS2000.
Extended range cells with RBS200 using SPPNormal range cells.
MBCCHNO
124(198)
Type:
Numeral.
Range:
128 to 251 (GSM 800).
1 to 124 (GSM 900, P-band).
0, 975 to 1023 (GSM 900, G1-band).
512 to 885 (GSM 1800).
512 to 810 (GSM 1900).
Unit:
ARFCN.
Default:
–
Command:
RLMFC, RLMFP.
O&M:
–
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Comments:
Absolute RF channel number for measurement on BCCH.
The number is the absolute RF channel number for the
BCCH for cells to be measured on by a mobile station in
the cell.
MBCCHNO is the BCCH allocation, i.e. it indicates to the
MS the frequencies that must be monitored and measured
in idle, active or both modes. This number is sent to MSs
in the system information messages, on the BCCH channel
in idle mode, and on the SACCH in active mode.
Up to 32 BCCH carriers can be defined by specifying their
ARFCN.
In case GSYSTYPE = MIXED and CSYSTYPE = GSM,
a maximum of 22 frequencies out of 32 can be defined
within the GSM1800/GSM1900 band.
The range defined by the lowest and highest MBCCHNO,
in the band specified for the cell (and if GSYSTYPE =
MIXED), is:
Cell System
Type
Maximum value range in
the GSM 1800 / GSM
1900 band
GSM 1900
278
GSM 1800
278
GSM 900
256
GSM 800
256
The measurement reports from the MS are sent to the BSC
on the SACCH, indicating the signal strength and quality
of the serving link and the signal strength, frequency, and
BSIC from the six BTSs with strongest signal strength.
Only measurements from neighbouring cells that fulfil the
requirement that their BCCH has a frequency as indicated
by MBCCHNO and an NCC as indicated by NCCPERM
are valid. To be allowed to perform a handover to any of
the measured cells it is also necessary that the measured
cell is defined as a neighbour to the serving cell. Up to 64
different cells can be defined as neighbours.
LISTTYPE
Type:
Identifier.
Range:
IDLE, ACTIVE, Omitted.
Unit:
–
Default:
–
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Command:
RLMFC, RLMFP.
O&M:
–
Comments:
This parameter identifies which type of list the chosen
frequencies will be on. When the MS is in idle or active
mode, it will measure on the frequencies on the
corresponding list.
If LISTTYPE is not specified, both lists are affected.
MRNIC
Type:
Identifier.
Range:
MRNIC, Omitted.
Unit:
–
Default:
–
Command:
RLMFC, RLMFP.
O&M:
–
Comments:
Measurement Results Not Interpreted Correctly.
If the string MRNIC is added in the command RLMFC,
the updating of the measurement frequencies are
performed immediately. In this case the measurement
results are not interpreted correctly for a period of time.
3.19
Idle channel measurements
3.19.1
Cell data
This function is designed to measure the uplink interference levels on
idle channels in order to obtain statistical data, as well as an ideal
ranking of the channels according to their interference levels. In this way,
the logical channel with least interference is allocated during the
immediate assignment and assignment procedures. The function is
initiated on a per cell basis using the command RLIMI.
ICMSTATE
126(198)
Type:
Identifier.
Range:
ACTIVE, PASSIVE, NOALLOC.
Unit:
–
Default:
PASSIVE.
Command:
RLIMI, RLIMP , RLIME.
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O&M:
–
Comments:
Idle Channel Measurement State.
ACTIVE
The measurements made are used for
statistical purposes and at channel allocation.
PASSIVE
No idle channel measurements are made.
NOALLOC The measurements are used for statistical
purposes only.
NOALLOC
Type:
Identifier.
Range:
NOALLOC, Omitted.
Unit:
–
Default:
–
Command:
RLIMI, RLIMP.
O&M:
–
Comments:
When this string is added to the command RLIMI, then
idle channel measurements will not be used at channel
allocation. The measurements are in this case used merely
for statistical purposes.
INTAVE
Type:
Numeral.
Range:
1 to 31.
Unit:
SACCH periods (480 ms).
Default:
6.
Command:
RLIMC, RLIMP.
O&M:
–
Comments:
The number of measurements that should be used in the
calculation of the interference band for a channel.
LIMITn
Type:
Numeral.
Range:
LIMIT1: 0 to 59.
LIMIT2: 1 to 60.
LIMIT3: 2 to 61.
LIMIT4: 3 to 62.
Unit:
–
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Default:
LIMIT1: 2.
LIMIT2: 6.
LIMIT3: 12.
LIMIT4: 22.
Command:
RLIMC, RLIMP.
O&M:
–
Comments:
This parameter defines threshold limits for five different
interference bands. The limits must be defined in
ascending order according to the following:
LIMIT1 < LIMIT2 < LIMIT3 < LIMIT4.
LIMIT1
Interference measurements in band 1 which
have values ranging from LIMIT1 and
below.
LIMIT2
Interference measurements in band 2, which
have values ranging from LIMIT1 up to and
including LIMIT2.
LIMIT3
Interference measurements in band 3, which
have values ranging from LIMIT2 up to and
including LIMIT3.
LIMIT4
Interference measurements in band 4, which
have values ranging from LIMIT3 up to and
including LIMIT4.
The values assigned to each threshold correspond to dBm
values internally.
0 < −110 dBm
1 −110 dBm to −109 dBm
2 −109 dBm to −108 dBm
···
61 −50 dBm to −49 dBm
62 −49 dBm to −48 dBm
3.20
Cell load sharing
Note: Cell load sharing evaluations are not performed at all for channels
in multislot configurations.
3.20.1
BSC data
RAEPC, RAEPP
O&M:
128(198)
–
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Comments:LSSTATE
3.20.2
Type:
Identifier.
Range:
ACTIVE, INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLLSI, RLLSE, RLLSP.
O&M:
–
Comments:
Cell load sharing active/inactive in the BSC.
BSC exchange property data
CLSTIMEINTERVAL
Type:
Numeral.
Range:
100 to 1000.
Unit:
ms.
Default:
100.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Time interval for checking the level of idle TCHs for cells
active for Cell load sharing.
The time interval values shall be given in multiples of 100
milliseconds.
3.20.3
Cell data
CLSSTATE
Range:
ACTIVE, INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLLCI, RLLCE, RLLCP.
O&M:
–
Comments:
Cell load sharing active/inactive for an individual cell. For
CLSSTATE activation to have effect, LSSTATE must be
activated.
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CLSACC
Type:
Numeral.
Range:
1 to 100.
Unit:
%.
Default:
40.
Command:
RLLCC. , RLLCP
O&M:
–
Comments:
Percentage of available full rate capable traffic channels, in
a target cell, at or below which no handovers due to Cell
Load Sharing will be accepted.
CLSLEVEL
Type:
Numeral.
Range:
0 to 99.
Unit:
%.
Default:
20.
Command:
RLLCC, RLLCP
O&M:
–
Comments:
Percentage of available full rate capable traffic channels at
which or below which Cell load sharing evaluations are
initiated. The value of CLSLEVEL must be less than the
value of CLSACC.
Depending on the value of the bit 1 (B) of GPRSPRIO,
see page 84, on-demand PDCH are counted as
available/idle (B=0) or not available/busy (B=1) when the
cell traffic level is calculated for Cell Load Sharing
evaluations.
CLSRAMP
130(198)
Type:
Numeral.
Range:
0 to 30.
Unit:
s.
Default:
5.
Command:
RLLCC. , RLLCP
O&M:
–
Comments:
Cell load sharing ramping time parameter. The interval
during which the value of RHYST is ramped up from zero
to the final value.
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HOCLSACC
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLLCC. , RLLCP
O&M:
–
Comments:
Handover due to Cell load sharing accepted to this cell.
RHYST
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
75.
Command:
RLLCC. , RLLCP
O&M:
–
Comments:
Hysteresis reduction parameter. Determines how much the
hysteresis values can be reduced in the Cell load sharing
evaluation.
3.21
Multiband operation
3.21.1
BSC exchange property data
CLMRKMSG
Type:
Numeral.
Range:
0 to 3.
Unit:
–
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Classmark message handling.
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This parameter indicates how the Classmark Change
message shall be handled if received as first RR message
from the MS.
0 The message 08.08 Classmark Update is always sent to
the MSC, neither suppressed nor delayed.
1 The message 08.08 Classmark Update is never sent to
the MSC.
2 The sending of 08.08 Classmark Update to the MSC is
delayed until an Inter BSC handover. 08.08 Classmark
Update will be sent before the GSM message Handover
Required.
3 The sending of the 08.08 Classmark Update to the MSC
is delayed until a call set-up is performed. The message
is also sent in case of an inter-BSC handover at location
updating.
3.21.2
BSC data
MODE
Type:
Identifier.
Range:
MULTI, SINGLE.
Unit:
–
Default:
SINGLE.
Command:
RLOMC. , RLOMP
O&M:
–
Comments:
The BSC band operation mode identifier.
MULTI The BSC multiband operation mode is enabled.
SINGLE The BSC multiband operation mode is disabled.
GSYSTYPE
132(198)
Type:
Identifier.
Range:
GSM800, GSM900, GSM1800, GSM1900, MIXED.
Unit:
–
Default:
–
Command:
RLTYC, RLTYI, RLTYP.
O&M:
–
Comments:
Specifies the system type for the BSC. Defining the
parameter CSYSTYPE is mandatory if the global system
type is MIXED.
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3.21.3
Cell data
CSYSTYPE
Type:
Identifier.
Range:
GSM800, GSM900, GSM1800, GSM1900.
Unit:
–
Default:
–
Command:
RLDEI. , RLDEP
O&M:
–
Comments:
In single band cells CSYSTYPE specifies the system type
for the cell. In multi band cells it specifiies the frequency
band used for the BCCH.
The parameter CSYSTYPE is mandatory if the global
system type is MIXED. If the global system type is other
that MIXED, CSYSTYPE is optional and will be accepted
only if the parameter value is set to the same as the global
system type. If CSYSTYPE is omitted, it will
automatically be set to the value of the global system type.
MBCR
Type:
Numeral.
Range:
0 to 3.
Unit:
–
Default:
0.
Command:
RLSSC , RLSSP.
O&M:
–
Comments:
Multi Band Cells Reported. Defines the number of
neighbours from each frequency band that shall be
reported in the measurement report.
0 The multiband MS reports the strongest identified
neighbours irrespective of the frequency band used in
the cells.
1 The multiband MS attempts to report, at least, the
strongest identified neighbour cells in each frequency
band.
2 The multiband MS attempts to report at least the two
strongest identified neighbour cells in each frequency
band.
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3 The multiband MS attempts to report at least the three
strongest identified neighbour cells in each frequency
band.
3.21.4
Hardware characteristics data
BAND
Type:
Identifier.
Range:
GSM800, GSM900, GSM1800, GSM1900.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC.
O&M:
The parameter is only allowed to be changed when the
transmitter/receiver is out of service.
Comments:
Frequency band supported by the transmitter/receiver.
GSM800 GSM 800 band.
GSM900 GSM 900 band.
GSM1800 GSM 1800 band.
GSM1900 GSM 1900 band.
3.22
Differential Channel Allocation
The channel allocation priority levels sent from the MSC to the BSC, and
used for Differential channel allocation, are defined by
0
1
···
14
15
No priority information is sent.
Highest priority
Lowest priority
Priority level not used.
Note: In a multislot configuration, differentiation is done for every
requested channel in the configuration.
3.22.1
MSC exchange property data
CAPLTCHSCH
134(198)
Type:
Numeral.
Range:
0 to 3.
Unit:
–
Default:
0.
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Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Specifies if channel allocation priority level handling is to
be considered at initial TCH and/or at SDCCH assignment
or not at all. The parameter is optional.
0 Channel allocation priority level handling not
considered
1 Channel allocation priority level handling only
considered at initial TCH assignment
2 Channel allocation priority level handling only
considered at initial SDCCH assignment
3 Channel allocation priority level handling considered at
initial SDCCH and initial TCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
CAPLTCHEMER
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Specifies a channel allocation priority level in the MSC in
case of an emergency call. The parameter is optional.
The priority level for emergency calls need to be defined in
the BSC too, see EMERGPRL at page 140.
This parameter indicates the channel allocation priority
level sent to the BSC at initial TCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
CAPLTCHMOVAL
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
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Comments:
Specifies a channel allocation priority level to be used for
mobile originated transactions when no priority
information has been received from HLR. The parameter is
optional.
This parameter indicates the channel allocation priority
level sent to the BSC at initial TCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
CAPLSCHMOVAL
Type:
Numeral.
Range:
0 to 15.
Unit:
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Specifies a channel allocation priority level to be used for
mobile originated transactions when no priority
information has been received from HLR. The parameter is
optional.
This parameter indicates the channel allocation priority
level sent to the BSC at initial SDCCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
CAPLTCHMTVAL
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Specifies a channel allocation priority level to be used for
mobile terminated calls when no priority information has
been received from HLR. The parameter is optional.
This parameter indicates the channel allocation priority
level sent to the BSC at initial TCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
136(198)
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CAPLSCHMTVAL
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Specifies a channel allocation priority level to be used for
mobile terminated transactions when no priority
information has been received from HLR. The parameter is
optional.
This parameter indicates the channel allocation priority
level sent to the BSC at initial SDCCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
CAPLTCHMTOVERR
Type:
Numeral.
Range:
0, 1.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Determines whether the channel allocation priority level
received from HLR or an operator defined value is to be
used for mobile terminated calls. The parameter is
optional.
0 The channel allocation priority level value received from
the
HLR is to be used.
1 An operator defined value is to be used.
Note: This parameter is only defined for Ericsson MSCs.
CAPLSCHMTOVERR
Type:
Numeral.
Range:
0, 1.
Unit:
–
Default:
0.
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Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Determines whether the channel allocation priority level
received from HLR or an operator defined value is to be
used for mobile terminated transactions. The parameter is
optional.
0 The channel allocation priority level value received from
the
HLR is to be used.
1 An operator defined value is to be used.
Note: This parameter is only defined for Ericsson MSCs.
CAPLTCHMTPREF
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Specifies a channel allocation priority level for mobile
terminated calls when the parameter
CAPLTCHMTOVERR is set to 1. The parameter is
optional.
This parameter indicates the channel allocation priority
level sent to the BSC at initial TCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
CAPLSCHMTPREF
138(198)
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Specifies a channel allocation priority level for mobile
terminated transactions when the parameter
CAPLSCHMTOVERR is set to 1. The parameter is
optional.
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This parameter indicates the channel allocation priority
level sent to the BSC at initial SDCCH assignment.
Note: This parameter is only defined for Ericsson MSCs.
SMOASSIGN
Type:
Numeral.
Range:
0, 1.
Unit:
–
Default:
0.
Command:
MGEPC, MGEPP.
O&M:
–
Comments:
SMOASSIGN determines whether the message
ASSIGNMENT REQUEST is to be sent from the MSC to
the BSC at mobile originated SMS. The parameter is only
valid if the function “SMS Mobile Originated, Point to
Point, in MSC/VLR” is in the application system of the
exchange. The parameter is optional.
0 Message is not sent
1 Message is sent
Note: This parameter is only defined for Ericsson MSCs.
SMTASSIGN
Type:
Numeral.
Range:
0, 1.
Unit:
–
Default:
0.
Command:
MGEPC, MGEPP.
O&M:
–
Comments:
SMTASSIGN determines whether the message
ASSIGNMENT REQUEST is to be sent from the MSC to
the BSC at mobile terminated SMS. The parameter is only
valid if the function “SMS Mobile Terminated, Point to
Point, in MSC/VLR” is in the application system of the
exchange. The parameter is optional.
0 Message is not sent
1 Message is sent
Note: This parameter is only defined for Ericsson MSCs.
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3.22.2
BSC exchange property data
DCAHANDOVER
Type:
Numeral.
Range:
0, 1.
Unit:
–
Default:
0.
Command:
RAEPC , RAEPP.
O&M:
–
Comments:
Differential channel allocation at Intra-BSC inter-cell
handover.
0 OFF
1 ON
When the switch is ON, differentiation according to the
stored priority level for the connection is applied. When
OFF, differentiation is not applied. The parameter is not
valid at handover during assignment.
3.22.3
BSC data
DCASTATE
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLDCI, RLDCE , RLDCP.
O&M:
–
Comments:
Differential channel allocation switch.
Activates/deactivates Differential channel allocation in the
BSC.
EMERGPRL
140(198)
Type:
Numeral.
Range:
1 to 15.
Unit:
–
Default:
–
Command:
RLDCI , RLDCP.
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O&M:
–
Comments:
Priority level for emergency calls.
EMERGPRL must always be defined when initiating
Differential channel allocation. The corresponding
parameter in the MSC, CAPLTCHEMER (see page 135),
should be set accordingly.
STATSINT
3.22.4
Type:
Numeral.
Range:
1 to 96.
Unit:
Number of 15 min. periods.
Default:
–
Command:
RLSCI, RLSCP.
O&M:
–
Comments:
Differential channel allocation statistics collection time
interval.
By means of this recording function, it is possible to
monitor dropped connections, connection establishments,
allocation attempts and allocation failures due to
Differential Channel allocation per priority level.
Cell data
CHTYPE
Type:
Identifier.
Range:
TCH, SDCCH.
Unit:
–
Default:
–
Command:
RLPRC, RLPRP.
O&M:
–
Comments:
Channel type.
TCH
Traffic Channel
SDCCH Stand Alone Dedicated Control Channel
Note: As a printout parameter in other functions,
CHTYPE can also have the values BCCH and CBCH.
CHRATE
Type:
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Identifier.
141(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Range:
FR, HR.
Unit:
–
Default:
–
Command:
RLPRC, RLPRP.
O&M:
–
Comments:
Channel rate.
FR
HR
The channel rate is FR (full rate).
The channel rate is HR (half rate).
Parameter CHRATE is only valid for channel type TCH.
3.22.5
P P Resource type data
A P P Resource Type (RT) is a unique type of channel.
In Ericsson’s GSM system R7, there are six possible P P RTs within a
cell:
PPRT1.1:
PPRT1.2:
PPRT2.1:
PPRT2.2:
PPRT3:
PPRT4:
full-rate TCH in the overlaid subcell,
half-rate TCH in the overlaid subcell,
full-rate TCH in the underlaid subcell,
half-rate TCH in the underlaid subcell,
SDCCH in the overlaid subcell,
SDCCH in the underlaid subcell.
A Priority Profile (PP) is defined by means of the command RLPPI.
An RT is assigned a PP by means of the command RLPRC. The P P RT
is specified by means of SCTYPE, CHTYPE and CHRATE.
PP
Type:
String.
Range:
1 to 7 characters, DEFAULT. ALL is not allowed.
Unit:
–
Default:
DEFAULT.
Command:
RLPPI, RLPPC, RLPRC, RLPPP.
O&M:
–
Comments:
Priority Profile.
A PP is a matrix including different values of INAC and
PROBF for each Priority Level (PRL).
There is a permanent default PP containing INAC = 0 %
and PROBF = 0 % for each PRL.
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3.22.6
Priority profile (PP) data
In each PP, for each PRL, the two parameters INAC and PROBF need
to be defined.
PRL
Type:
Numeral.
Range:
1 to 16.
Unit:
–
Default:
–
Command:
RLPPC, RLPPP.
O&M:
–
Comments:
Priority Level in PP.
The operator can assign a channel allocation priority level
to each specific mobile subscriber in the subscriber data in
the HLR.
When a channel is to be allocated, the mobile subscriber
specific PRL is used in the Differential channel allocation.
At emergency calls, always the priority level for
emergency calls (EMERGPRL) is used regardless of the
subscriber’s priority level.
INAC
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
0.
Command:
RLPPC, RLPPP
O&M:
–
Comments:
Percentage of deblocked channels that are inaccessible for
the PRL at differential channel allocation.
PROBF
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
0.
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3.23
Command:
RLPPC, RLPPP.
O&M:
–
Comments:
Probability of failure to allocate the last remaining
accessible channel for the priority level.
Enhanced Multi-Level Precedence and Pre-emption
Service (eMLPP)
The enhanced Multi-Level Precedence and Pre-emption (eMLPP) feature
enables the operator to give high priority users good access to the
network. This is achieved by pre-emption of one low-priority connection
either by handover or disconnection.
The BSS procedure uses two pre-emption indicators, PCI and PVI, that
are provided by the MSC. If a connection has no pre-emption indicator
set it is not influenced at all by pre-emption handling.
3.23.1
BSC exchange property data
PHSTATE
Type:
Numeral.
Range:
0,1.
Unit:
−
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Indicates if Pre-emption Handling is to be initiated.
The following values are available:
0 The eMLPP parameters are ignored.
1 The eMLPP parameters PCI and PVI are considered in
the channel allocation algorithm.
3.23.2
MSC, eMLPP data
EMLPP
144(198)
Type:
Identifier.
Range:
A, B, 0 to 4
Unit:
−
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Default:
-
Command:
MGETC.
O&M:
–
Comments:
Enhanced multi-level precedence and pre-emption level.
The following levels are available:
A Highest level
B Second-highest level
0 Third-highest level
1 Forth-highest level
2 Fifth-highest level
3 Sixth-highest level
4 Lowest level
BAOCI
Type:
Numeral.
Range:
0,1.
Unit:
−
Default:
0.
Command:
MGETC.
O&M:
–
Comments: Barring of outgoing calls overriding indicator. Set per
eMLPP level.
The following values are available:
0 Barring not overridden
1 Barring overridden
BOICI
Type:
Numeral.
Range:
0,1.
Unit:
−
Default:
0.
Command:
MGETC.
O&M:
–
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Comments: Barring of outgoing international calls overriding indicator.
Set per eMLPP level.
The following values are available:
0 Barring not overridden
1 Barring overridden
BOIEXHI
Type:
Numeral.
Range:
0,1.
Unit:
−
Default:
0.
Command:
MGETC.
O&M:
–
Comments: Barring of outgoing international calls except those to the
home Public Land Mobile Network (PLMN) country
overriding indicator. Set per eMLPP level.
The following values are available:
0 Barring not overridden
1 Barring overridden
PCI
Type:
Numeral.
Range:
0,1.
Unit:
−
Default:
0.
Command:
MGETC.
O&M:
–
Comments: Pre-emption capability indicator. Set per eMLPP level.
The following values are available
0 Allocation request cannot pre-empt an existing
connection.
1 Allocation request can pre-empt an existing connection.
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PVI
Type:
Numeral.
Range:
0,1.
Unit:
−
Default:
0.
Command:
MGETC.
O&M:
–
Comments: Pre-emption vulnerability indicator. Set per eMLPP level.
The following values are available
0 Connection cannot be pre-empted by another allocation
request.
1 Connection can be pre-empted by another allocation
request.
PRIORITY
Type:
Numeral.
Range:
1 to 14.
Unit:
−
Default:
14
Command:
MGETC.
O&M:
–
Comments:
eMLPP priority. Set per eMLPP level. The
element is ignored in BSS.
QAI
Type:
Numeral.
Range:
0, 1.
Unit:
−
Default:
0
Command:
MGETC.
O&M:
–
Comments: Queueing allowed indicator. Set per eMLPP level. The
element is ignored in BSS.
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3.24
Adaptive Configuration of Logical Channels
From a basic configuration of SDCCH/8, this function can dynamically
change the number of SDCCH/8 in the cell depending on the demand for
such channels. The number of SDCCH/8 is however never decreased
below the basic configuration.
If a subcell structure is defined for the cell, the number of SDCCH/8 is
only changed in the underlaid cell.
3.24.1
Cell data
ACSTATE
Type:
Identifier.
Range:
ON, OFF.
Unit:
−
Default:
OFF.
Command:
RLACI, RLACE, RLACP.
O&M:
–
Comments:
Adaptive Configuration State.
Activation state of the Adaptive Configuration of Logical
Channels function in the cell.
SLEVEL
Type:
Numeral/Identifier.
Range:
0 to 2, CONG.
Unit:
−
Default:
0.
Command:
RLACC, RLACP.
O&M:
–
Comments:
SDCCH Level.
Level of remaining SDCCH subchannels when an attempt
to increase the number of SDCCH/8 by reconfiguring a
TCH to an SDCCH/8 will take place.
CONG
allocation of an
congestion.
148(198)
The attempt to increase the number of
SDCCH/8 will take place when
SDCCH has failed due to
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
If SLEVEL is set to CONG, it is recommended that
Immediate Assignment on TCH is used in the cell.
STIME
Type:
Numeral.
Range:
15 to 360.
Unit:
Seconds.
Default:
20.
Command:
RLACC, RLACP.
O&M:
–
Comments:
SDCCH Time Interval.
Minimum time interval before an SDCCH/8 configured by
Adaptive Configuration of Logical Channels is
reconfigured back to a TCH when SDCCH demands are
low.
As long as the number of SDCCH/8s is higher than the
basic configuration, an evaluation is performed once every
three seconds to check if the criterion to remove one
SDCCH is fulfilled. A ‘leaky bucket’ counter algorithm
determines this with STIME as the initial counter value. If
the number of SDCCH/8 is more than (8 + SLEVEL)
when the evaluation is done, the counter is decreased. If
the number equals (8 + SLEVEL), the counter remains
unchanged. If the number is less than (8 + SLEVEL), the
counter is increased but never beyond its initial value.
3.25
GSM - UMTS Cell Reselection and Handover
3.25.1
BSC exchange property data
COEXUMTS
Type:
Numeral
Range:
0, 1.
Unit:
-
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Support for Coexistence of GSM and UMTS
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
0 OFF
1 ON
This parameter enables (ON) and disables (OFF) the feature
Coexistence of GSM and UMTS.
COEXUMTSINT
3.25.2
Type:
Numeral
Range:
100 to 1000.
Unit:
ms
Default:
1000.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Time interval between traffic load checking.
GSM - UMTS Cell Reselection - cell data
Note: The settings of the following parameters only affect Multi-RAT
FDD UMTS capable MSs.
UMFI
Type:
MFDDARFCN-MSCRCODE-DIVERSITY
Range:
MFDDARFCN:
MSCRCODE:
DIVERSITY:
Unit:
-
Default:
-
Command:
RLUMC, RLUMP.
O&M:
–
Comments:
UTRAN Measurement Frequency Information for cell
reselection in GSM Idle Mode and GPRS/EGPRS Ready
and Standby states.
0 to 16383.
0 to 511.
DIV or NODIV.
UMFI, FDDQMIN, FDDQOFF and QSI are cell
parameters, broadcast over the BCCH (SI 2 quater) and
PBCCH (PSI 3 quater, if enabled). They are broadcast only
if the exchange property COEXUMTS is set to ON.
MFDDARFCN, the absolute RF channel number of the
neighbouring UTRAN cell to be measured by a multi-RAT
mobile in GSM idle mode. According to the 3GPP
recommendations the channels are numbered as follows:
150(198)
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f (n) = 5/n in MHz, where n (MFDDARFCN) goes from 0
to 16383 and f is a frequency of the carrier, downlink.
There are 12 frequencies (bandwith 5MHz) in the UMTS
spectrum (2110-2170MHz), with values of MFDDARFCN
from 10550 to 10850.
MSCRCODE, the scrambling code of the neighbouring
UTRAN cell.
DIVERSITY, diversity status of the neighbouring UTRAN
cell.
Up to 64 UMFIs can be defined in a cell.
FDDQMIN
Type:
Numeral.
Range:
0 to 7.
Unit:
dB.
Default:
0.
Command:
RLSUC, RLSUP.
O&M:
–
Comments:
Minimum FDD quality.
Defines the minimum threshold for the "quality" measure
Ec/No for cell reselection to UTRAN cells.
0 -20 dB
1 -19 dB
···
7 -13 dB.
FDDQOFF
Type:
Numeral.
Range:
0 to 15.
Unit:
dB.
Default:
8.
Command:
RLSUC, RLSUP.
O&M:
–
Comments:
FDD quality offset.
Defines the inter-system cell reselection offset to UTRAN
cells.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
0 -infinite, always select UTRAN FDD cell if acceptable
1 -28 dB
2 -24 dB
···
15 -28 dB.
SPRIO
Type:
Identifier.
Range:
NO, YES.
Unit:
-
Default:
NO.
Command:
RLSUC, RLSUP.
O&M:
–
Comments:
Search priority.
Indicates if 3G cells may be searched when BSIC decoding
is required.
NO
Multi-RAT MS may not use the search frames
required for BSIC decoding, for UTRAN FDD
measurements.
YES
Multi-RAT MS may use up to 25 search frames per
13 seconds without considering the need for BSIC
decoding in these frames.
QSI
Type:
Numeral.
Range:
0 to 15.
Unit:
dBm.
Default:
15.
Command:
RLSUC, RLSUP.
O&M:
–
Comments:
GSM-UMTS cell reselection quality search indicator.
Indicates the threshold to start UTRAN FDD measurements
in Idle mode and Stand-by and Ready states.
When the parameter value is between 0 and 6, the UTRAN
FDD measurements are started when the serving cells'
signal strength is below the threshold.
152(198)
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When the parameter value is between 8 and 14, the
UTRAN FDD measurements are started when the serving
cells' signal strength is above the threshold.
0 -98 dBm
1 -94 dBm
···
6 -74 dBm
7 always
8 -78 dBm
9 -74 dBm
···
14 -54 dBm
15 never
3.25.3
GSM - UMTS Handover - UTRAN cell data
CELL
Type:
String.
Range:
1 to 7 characters except ALL.
Unit:
–
Default:
–
Command:
All commands where a specific cell is pointed out.
Cell definition: RLDEI.
O&M:
–
Comments:
Cell name of a external UTRAN cell. As UTRAN cells
cannot belong to any GSM BSC, they have always to be
defined as external.
NEWNAME
Type:
String.
Range:
1 to 7 characters except ALL.
Unit:
–
Default:
–
Command:
RLDEC.
O&M:
-
Comments:
The parameter is used to change the name of a cell. See
parameter CELL for recommendations.
FDDARFCN
Type:
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Numeral.
153(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Range:
0 to 16383.
Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
O&M:
-
Comments:
Absolute RF channel number of the external UTRAN cell:
According to the 3GPP recommendations the channels are
numbered as follows:
f (n) = 5/n in MHz, where n (FDDARFCN) goes from 0 to
16383 and f is a frequency of the carrier, downlink. There
are 12 frequencies (bandwith 5MHz) in the UMTS
spectrum (2110-2170MHz), with values of FDDARFCN
from 10550 to 10850
SCRCODE
Type:
Numeral.
Range:
0 to 511.
Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
O&M:
-
Comments:
The scrambling code of the external UTRAN cell:
UTRANID
Type:
RNCID-CI-MCC-MNC-LAC.
Range:
RNCID: 0 to 4095
CI: 0 to 65535.
Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
O&M:
-
Comments:
Identity of the external UTRAN cell:
Consists of the Radio Network Controller Identity
(RNCID), Cell Identity within the RNC (CI), Mobile
Colour Code (MCC), Mobile Network Code (MNC) and
the Location Area Code (LAC). MCC, MNC and LAC
154(198)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
have the same value ranges as used for the parameter CGI,
see page 10.
MRSL
Type:
Numeral.
Range:
0 to 49.
Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
O&M:
-
Comments:
UTRAN cell quality criteria.
Within the locating algorithm, the measured energy per
chip on the Common Pilot Channel (CPICH Ec/No) a
UTRAN cell is compared with the minimum quality
threshold defined by MRSL. Only if this criteria is
fulfilled, handovers to the UTRAN cell are possible. The
values are:
0 MRSL < -24 dB
1 -24 dB <= MRSL < -23.5 dB
...
48 -0.5 dB <= MRSL < 0 dB
49 0 <= MRSL
3.25.4
GSM - UMTS Handover - GSM cell data
ISHOLEV
Type:
Numeral.
Range:
0 to 99.
Unit:
%
Default:
20
Command:
RLLOC, RLLOP.
O&M:
–
Comments:
Inter-system handover load threshold.
ISHOLEV defines the traffic load threshold of the serving
GSM cell that needs to be exceeded in order to evaluate
UMTS measurements for handover.
Depending on the value of the bit 5 (F) of GPRSPRIO, see
page 84, on-demand PDCH are counted as idle (F=0) or
busy (F=1) when the cell traffic level is calculated for
GSM-UMTS Handover.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
FDDMRR
Type:
Numeral.
Range:
0 to 3.
Unit:
-
Default:
0
Command:
RLSUC, RLSUP.
O&M:
–
Comments:
Multi-Rat reporting.
FDDMRR defines how many measured neighbouring
UTRAN cells should be included in measurement reports.
The remaining positions in measurement reports will be
used for reporting GSM cells according to the parameter
MBCR, see page 133.
QSC
Type:
Numeral.
Range:
0 to 15.
Unit:
dBm.
Default:
15.
Command:
RLSUC, RLSUP.
O&M:
–
Comments:
GSM-UMTS handover quality search indicator.
Indicates the threshold to start UTRAN FDD measurements
in Active mode.
When the parameter value is between 0 and 6, the UTRAN
FDD measurements are started when the serving cells'
signal strength is below the threshold.
When the parameter value is between 8 and 14, the
UTRAN FDD measurements are started when the serving
cells' signal strength is above the threshold.
0
1
···
6
7
8
9
···
156(198)
-98 dBm
-94 dBm
-74 dBm
always
-78 dBm
-74 dBm
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
14 -54 dBm
15 never
QSCI
Type:
Numeral.
Range:
0, 1.
Unit:
-
Default:
0
Command:
RLSUC, RLSUP.
O&M:
–
Comments:
Initial Quality search indicator.
QSCI defines the control of UTRAN measurements after
entering active mode, before reading the first QSC.
3.25.5
0
UTRAN measurements are performed according to
QSI until the first QSC is read.
1
UTRAN measurements are always performed until
the first QSC is read
GSM - UMTS Handover - neighbouring cell relation data
There are no neighbour relation specific parameters that can be defined
for each GSM - UMTS neighbouring cell relation. It is possible to define
up to 64 UTRAN neighbours in addition to 64 GSM neighbours for each
GSM cell. A total of up to 8192 UTRAN neighbouring cell relations can
be defined per BSC.
CELLR
Type:
String.
Range:
1 to 7 characters except ALL.
Unit:
–
Default:
–
Command:
RLNRI, RLNRE, RLNRP, RLNCP.
O&M:
–
Comments:
Related cell designation.
The identity of the neighbouring UTRAN is specified by
means of CELLR.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.26
Adaptive Multi Rate
During Urgency conditions for bad quality handovers (pages 68 and 69),
Dynamic MS Power Control (page 90), Dynamic BTS Power Control
(page 96) and Intra Cell Handover (page 106), different values for some
parameters have to be considered for AMR FR connections. For this
purpose, AMR FR specific parameters BQOFFSETAFR,
QLIMDLAFR, QLIMULAFR, SSDESULAFR, QDESULAFR,
SSDESDLAFR, QDESDLAFR, SSOFFSETULAFR,
QOFFSETULAFR, SSOFFSETDLAFR and QOFFSETDLAFR are
used.
3.26.1
BSC exchange property data
AMRSUPPORT
Type:
Numeral
Range:
0 to 4.
Unit:
-
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Adaptive Multi Rate feature switch.
0
1
2
3
4
OFF
Full rate codec set 1
Full rate codec set 2
Not defined
Not defined
3.27
Link Quality Control in Enhanced GPRS
3.27.1
BSC exchange property data
LQCACT
158(198)
Type:
Numeral
Range:
0, 1.
Unit:
-
Default:
0.
Command:
RAEPC, RAEPP.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
O&M:
-
Comments:
Controls the feature Link Quality Control in Enhanced
GPRS.
0
1
2
3
OFF for both uplink and downlink
ON for downlink, OFF for uplink
OFF for downlink, ON for uplink
ON for both uplink and downlink
LQCIR
Type:
Numeral
Range:
0, 1.
Unit:
-
Default:
1.
Command:
RAEPC, RAEPP.
O&M:
-
Comments:
Specifies whether LQC is running in IR (1) or LA (0)
mode, for Acknowledged Mode TBFs
LQCDEFAULTMCSDL
Type:
Identifier
Range:
MCS-1, MCS-2, ..., MCS-9.
Unit:
-
Default:
MCS-5.
Command:
RAEPC, RAEPP.
O&M:
-
Comments:
Control of which MCS shall be used in the downlink when
Link Quality Control is switched off.
LQCDEFAULTMCSUL
Type:
Identifier
Range:
MCS-1, MCS-2, ..., MCS-9.
Unit:
-
Default:
MCS-5.
Command:
RAEPC, RAEPP.
O&M:
-
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments:
Control of which MCS shall be used in the uplink when
Link Quality Control is switched off.
LQCHIGHMCS
Type:
Identifier
Range:
MCS-1, MCS-2, ..., MCS-9.
Unit:
-
Default:
MCS-9.
Command:
RAEPC, RAEPP.
O&M:
-
Comments:
Maximum MCS that is supported.
LQCUNACK
Type:
Numeral
Range:
0 to 2.
Unit:
-
Default:
1.
Command:
RAEPC, RAEPP.
O&M:
-
Comments:
Used to shift the selection of MCS to a more robust one
when Link Quality Control is running in LA mode and
RLC Unacknowledged Mode is used by the TBF.
3.28
GPRS Link Adaptation
3.28.1
Cell data
LA
160(198)
Type:
Identifier
Range:
ON, OFF.
Unit:
-
Default:
ON.
Command:
RLGSC, RLGSP.
O&M:
–
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments: Activates and deactivates the feature GPRS Link
Adaptation.
CHCSDL
Type:
Identifier
Range:
NA, CS-1, CS-2, CS-3, CS-4.
Unit:
-
Default:
CS-2.
Command:
RLGSC, RLGSP.
O&M:
–
Comments:
Coding Scheme for the downlink.
Parameter CHCSDL defines the initial CS that will be
used for the downlink. If set to NA, the parameter
CHCODING will be used instead.
If GPRS Link Adaptation is not active, the selected initial
CS will work as static.
If GPRS Link Adaptation is active CHCSDL is used as the
initial CS.
Note: If CHCSDL is set to CS-3 or CS-4 and if GPRS
TBF capability is (CS-1, CS-2), then CS-2 is used.
Note: Parameter CHCODING is always used to define the
uplink CS.
3.29
GPRS/EGPRS Quality of Service
3.29.1
BSC exchange property data
PCUQOS
Type:
Identifier
Range:
ON, OFF.
Unit:
-
Default:
OFF.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Activates and deactivates the feature GPRS/EGPRS
Quality of Service.
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THPMBRFACTOR
Type:
Numeral
Range:
0 to 10.
Unit:
-
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Defines to what extent the MBR is taken into account of
scheduling of the Interactive users.
If set to 0, MBR is not taken into account in the weight
calculation. The prioritizing of the users is made based
only on the THP.
QOSTHP1
Type:
Numeral
Range:
1 to 10.
Unit:
-
Default:
3.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Determines the relative importance of the THP-1 users
compared to the THP-3 users.
QOSTHP2
Type:
Numeral
Range:
1 to 10.
Unit:
-
Default:
2.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Determines the relative importance of the THP-2 users
compared to the THP-3 users.
CONVSTREAMTHP
Type:
162(198)
Numeral
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Range:
1 to 3.
Unit:
-
Default:
1.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Defines at what THP level the service classes
Conversational and Streaming are handled at in the
Interactive class.
3.30
Interference Rejection Combining
3.30.1
Cell data
IRC
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLDEC, RLDEP.
O&M:
-
Comments:
Activates (ON) or deactivates (OFF) the feature
Interference Rejection Combining (IRC).
3.31
Multi Band Cell
3.31.1
Cell data
FBOFFS
Type:
Numeral.
Range:
-40 to 40.
Unit:
dB.
Default:
0.
Command:
RLLOC, RLLOP.
O&M:
–
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments:
Defines the difference in pathloss between the BCCH
frequency band group and the non-BCCH frequency band
group. Positive values are used when the BCCH frequency
band group is assumed to offer "better" coverage than the
non-BCCH frequency band group.
As the BSC does not accept negative parameters FBOFFS
is implemented as two different parameters, FBOFFSN
(negative value) and FBOFFSP (zero or positive value).
3.31.2
Channel group data
BAND
Type:
Identifier.
Range:
GSM800, GSM900, GSM1800, GSM1900.
Unit:
–
Default:
–
Command:
RLDGI , RLDGP .
O&M:
–
Comments:
Frequency band used in the subcell.
GSM1800 and GSM1900 cannot be defined in the same
cell.
In multi band cells, CSYSTYPE defines the frequency
band used for the BCCH.
It is not possible to change BAND in single band cells. In
these cells CSYSTYPE defines the frequency band used in
the whole cell.
3.32
GPRS/EGPRS Connection Control And Transfer
3.32.1
BSC exchange property data
DLDELAY
164(198)
Type:
Numeral.
Range:
0 to 5000
Unit:
ms
Default:
1000.
Command:
RAEPC, RAEPP.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
O&M:
–
Comments:
Defines the time period to keep a downlink TBF after the
last downlink RLC data block is sent.
ESDELAY
Type:
Numeral.
Range:
0 to 2000.
Unit:
ms
Default:
500.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Defines the time period to keep a downlink TBF after the
last downlink TBF is set-up.
TFILIMIT
Type:
Numeral.
Range:
0 to 31.
Unit:
–
Default:
4.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Defines the needed minimum number of available TFIs for
allowing TBFs to be kept alive. If there are less available
TFIs than TFILIMT, no downlink TBFs will be kept alive
after the last downlink RLC data block or after the last
downlink TBF setup.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
4
HARDWARE CHARACTERISTICS
Parameters in this section describe the configuration and characteristics
of the hardware in the BTS.
4.1
Allocation data for transceiver group
CHGR
See also section 3.1.5. If a cell has more than one channel group that are
connected to the same transceiver group they can be defined in the same
table of the CDD, e.g. CHGR: 0&1.
TG
Type:
Numeral.
Range:
RXETG − TG
(0 ≤ TG ≤ 511)
for BTS logical model G01(RBS 200 series)
RXOTG − TG
(0 ≤ TG ≤ 511)
for BTS logical model G12(RBS 2000 series)
In the CDD only the TG part (0 to 511) of the full TG
identity is specified.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMSC, RXESE, RXESI, RXTCI,
RXTCE, RXBLE, RXBLI, RXPLI, RXPLE, RXAPI,
RXAPE, RXMOP.
O&M:
–
Comments:
Transceiver group (TG) identity. Each TG must be given a
unique value of TG within a BSC. It is recommended to
start with TG = 0 and then increase TG one step at a time.
A TG is connected to a cell via one or more channel
groups. A TG can support maximum 16 channel groups.
If the BTS is an RBS 204, RBS 200 multicell or belongs to
the RBS 2000 series, a TG can support channel groups in
more than one cell, i.e. one TG can serve all cells
(maximum 3) at the site:
TG 0: CellA1, CellA2, CellA3
Each TG can contain up to:
RBS 204
6 TRXs
RBS 200MC 7 TRXs
RBS 2101
4 TRXs
166(198)
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RBS 2102
RBS 2103
RBS 2106
RBS 2202
RBS 2206
RBS 2301
RBS 2302
RBS 2308
RBS 2401
12 TRXs
12 TRXs
12 TRXs
12 TRXs
12 TRXs
2 TRXs
6 TRXs
12 TRXs
2 TRXs
It is recommended to define one TG per site if not more
TRXs/TRUs than those specified above are required.
If the BTS is an RBS 200, RBS 203 or an RBS 205 a TG
can only support channel groups belonging to the same
cell, i.e. each cell must be served by a TG of its own:
TG 0: CellA1
TG 1: CellA2
TG 2: CellA3
Each TG can contain up to:
RBS 200 16 TRXs (4 cabinets)
RBS 203 2 TRXs
RBS 205 16 TRXs (4 cabinets)
It is recommended to define one TG per cell if not more
TRXs than those specified above are required.
TFMODE
Type:
Identifier.
Range:
M, S, SA.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMSC, RXMOP.
O&M:
The parameter is only allowed to be changed when the TF
is out of service.
Comments:
Timing Function Synchronisation Mode.
Mode of the timing function in the TG.
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
M
Master. Synchronised from the synchronisation
source and distributed to other TFs.
S
Slave. Synchronised from other TFs.
SA
Standalone. Synchronised from synchronisation
source.
167(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
The timing function is used for the synchronisation of the
different TGs within a site. The master TG at the site
handles the synchronisation of the frame numbers within
the site.
Note:
Only TFMODE = SA is currently supported by the RBS
200 series and RBS 2000 series.
SYNCSRC
Type:
Identifier.
Range:
INTI, INTE, PCM, DEFAULT.
Unit:
–
Default:
DEFAULT.
Command:
RXMOI, RXMOC, RXMSC, RXMOP.
O&M:
The parameter is only allowed to be changed when the TF
is out of service.
Comments:
Timing function synchronisation source in the BSC.
This parameter is only valid for base stations of the RBS
200 series.
INTI
Synchronisation taken from internally calibrated,
internal oscillator reference.
INTE Synchronisation taken from externally calibrated,
internal oscillator reference.
PCM Synchronisation taken from transport network
reference.
DEFAULT
Synchronisation taken from source
determined by
BTS capabilities.
Note: Base stations of the RBS 200 series can only be
synchronised from the PCM network.
ANT
168(198)
Type:
String.
Range:
1 to 7 characters.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMSC, RXMOP.
O&M:
The parameter is only allowed to be changed when the
transmitter is out of service.
Comments:
Antenna Designation.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Name of antenna connected to transmitter.
ANTA
Type:
String.
Range:
1 to 7 characters.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMSC, RXMOP.
O&M:
The parameter is only allowed to be changed when the
receiver is out of service.
Comments:
Antenna A Designation.
Name of antenna A connected to receiver.
ANTB
Type:
String.
Range:
1 to 7 characters.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMSC, RXMOP.
O&M:
The parameter is only allowed to be changed when the
receiver is out of service.
Comments:
Antenna B Designation.
Name of antenna B connected to receiver.
TRXC
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
–
Command:
All commands where the TRXC has to be specified as a
managed object instance.
TRXC can be regarded as the HW position for the element
that is addressed by the parameter TEI.
O&M:
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
–
169(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Comments:
Apart from the L2 address (Terminal Endpoint Identifier)
of the transceiver controller (TRXC), also the hardware
position of the TRXC must be specified.
In the logical model G01 (RBS 200 series) this
corresponds to the position (0 to 15) of the TRXC plug-in.
In the logical model G12 (RBS 2000 series) the TRXC is a
part of the TRU and TRXC should be set according to the
position (0 to 11) of this unit.
For both logical models it is recommended to start with
TRXC = 0 in each transceiver group and then increase
TRXC one step at a time.
TEI
Type:
Numeral.
Range:
0 to 63 for G12 (RBS 2000 series)
0 to 57 for G01 (RBS 200 series)
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMOP.
O&M:
The parameter is only allowed to be changed when the
TRXC/CF is out of service.
Comments:
Terminal Endpoint Identifier.
LAPD element used for L2 addressing to a TRXC or CF.
It is recommended to use the same value of TEI as the
corresponding value of TRXC. TEI must be unique within
a TG and not identical to CTEI. When configuring a
multidrop connection (RBS 2000 only), the TEI for the CF
(Central Functions) must be different for the different
connected TGs.
Note that TEI must also be defined in the BTS.
CTEI
170(198)
Type:
Numeral.
Range:
58 to 63.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMOP.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
O&M:
The parameter is only allowed to be changed when the
TRXC is out of service.
Comments:
TGC Application Terminal Endpoint Identifier.
LAPD element used for L2 addressing to the transceiver
group controller (TGC) application in a TRXC.
In logical model G01 (RBS 200 series), a software function
called TGC is loaded into the transceiver controllers
(TRXC) in the TG. TGC is loaded into each one of the
TRXCs, although it is only activated in one at a time. The
TGC handles common control functions within the TG.
CTEI is used to address the TGC within a TG. CTEI must
be set to the same value for all TRXCs in the TG. The
recommended value is CTEI = 58. CTEI and TEI must
not be identical within the TG.
When LAPD concentration is used, each TRX that is
connected to the same LAPD concentrator should be
addressed using different CTEI values. The CTEI value
should start with 58 and be increased by one for each TRX
within one site.
Note that CTEI must also be defined in the BTS.
CTEI is only be specified for a TG in the logical model
G01 (RBS 200 series). In the logical model G12 (RBS
2000 series) there is no TGC.
TXID
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
–
Command:
All commands where the TX has to be specified as a
managed object instance.
O&M:
–
Comments:
The transmitter ID.
TXID is used to identify a certain TX within the TG in the
logical model G01 (RBS 200 series).
In the logical model G01 a TX does not belong to a certain
TRXC and has to be addressed separately. The value of
TXID must be the same as the HW position (0 to 15) of the
TRXC to which it is related.
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
171(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
TXID is not specified for the logical model G12 (RBS 2000
series) as there is only one TX for each TRXC in G12.
MPWR
Type:
Numeral.
Range:
0 to 63.
Unit:
dBm.
Default:
–
Command:
RXMOI, RXMOC, RXMOP.
O&M:
The parameter is only allowed to be changed when the
transmitter is out of service.
Comments:
Maximum Transmitter Power.
It is necessary to specify the capability of the transmitters
available in the TG. This is done in order to prevent power
orders, which the transmitters cannot handle.
MPWR is the maximum transmitter power of the TX at
the power amplifier (PA) output. MPWR must be
specified for each transmitter in the TG.
RXD
Type:
Identifier.
Range:
A, B, AB.
Unit:
–
Default:
–
Command:
RXMOI, RXMOC, RXMOP.
O&M:
The parameter is only allowed to be changed when the
receiver is out of service.
Comments:
Receiver Diversity.
Combination of receiver antennae to be used.
A Antenna A used only.
B Antenna B used only.
AB
Receiver diversity employed using antenna A
and B.
Even when the antenna arrangement is such that it can
provide diversity it is also necessary that the signal
processing in the transceiver unit can process and take
advantage of the two signals. This diversity feature at the
transceiver must therefore be specified for each TRX.
172(198)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RXD indicates the use of receiver diversity in a given
TRX.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
5
CDD FORMS
This form may be used as a data request sheet for the parameter settings
in the BSC. The structure is based on the structure in the CDD document.
Site Data
MSC NAME:
RSITE:
BSC:
SITE NAME:
Common Cell Data
BSPWRB:
CELL:
BCCHTYPE: AGBLK:
CGI:
BSIC:
BCCHNO:
MFRMS:
FNOFFSET:
ECSC:
SCTYPE: UL
TSC:
MSTXPWR:
BSPWRT:
MSTXPWR:
BSPWRT:
SCTYPE: OL
TSC:
Channel Group Data
CHGR: 0
HOP
HSN
NUMREQBPC:
CCHPOS:
TN:
CBCH:
DCHNO:
SDCCH:
Idle Mode Behaviour Cell Data
ACCMIN:
CCHPWR:
CRH:
NCCPERM:
CB:
SIMSG 1:
MSGDIST:
SIMSG 7:
MSGDIST:
SIMSG 8:
MSGDIST:
CBQ:
ACC:
MAXRET:
TX:
ATT:
T3212:
CRO:
TO:
PT:
Locating BSC Data
SYSTYPE:
EVALTYPE:
TINIT:
TALLOC:
TURGEN:
IBHOSICH:
IHOSICH:
ASSOC:
IBHOASS:
TAAVELEN:
Locating Filter Cell Data
SSEVALSD:
QEVALSD:
SSEVALSI:
QEVALSI:
SSLENSD:
QLENSD:
SSLENSI:
QLENSI:
SSRAMPSD:
SSRAMPSI:
MISSNM:
174(198)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Locating Basic Ranking Cell Data
BSPWR:
MSRXMIN:
BSRXMIN:
MSRXSUFF:
BSRXSUFF:
PSSTA:
PTIMBQ:
PTIMTA:
QLIMUL:
QLIMDLAFR:
QLIMULAFR:
QLIMUL:
QLIMDLAFR:
QLIMULAFR:
MAXTA:
RLINKUP:
SCTYPE: UL
SCTYPE: OL
BSTXPWR:
BSTXPWR:
Locating Urgency Cell Data
TALIM:
PSSBQ:
PSSHF:
PTIMHF:
SCTYPE: UL
QLIMDL:
SCTYPE: OL
QLIMDL:
Locating Misc Cell Data
SCHO:
CELLQ:
RLINKT:
HPBSTATE:
Channel Administration / Immediate Assignment On TCH Cell Data
CHAP:
NECI:
BSCMC:
MC:
GPRS/EGPRS Channel Administration Cell Data
FPDCH:
PDCHALLOC:
PSKONBCCH:
GPRS/EGPRS Channel Administration Channel Group Data
NUMREQCS3CS4BPC:
NUMREQEGPRSBPC:
TN7BCCH:
MS Power Control Cell Data
DMPSTATE: AMRPCSTATE:
SCTYPE: UL
SSDESUL:
SSLENUL:
LCOMPUL:
QDESUL:
QLENUL:
QCOMPUL:
REGINTUL:
DTXFUL:
SSDESULAFR:
QDESULAFR:
SSDESUL:
SSLENUL:
LCOMPUL:
QDESUL:
QLENUL:
QCOMPUL:
REGINTUL:
DTXFUL:
SSDESULAFR:
QDESULAFR:
SCTYPE: OL
GPRS/EGPRS MS Power Control Cell Data
GAMMA:
BTS Power Control Cell Data
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
DBPSTATE:
AMRPCSTATE:
SCTYPE: UL
SDCCHREG: SSDESDL:
REGINTDL:
SSLENDL:
LCOMPDL:
QDESDL:
QLENDL:
BSPWRMIN:
SSDESDLAFR:
SDCCHREG: SSDESDL:
REGINTDL:
SSLENDL:
LCOMPDL:
QDESDL:
QLENDL:
BSPWRMIN:
SSDESDLAFR:
TIHO:
MAXIHO:
QOFFSETUL:
QOFFSETDL: SSOFFSETUL:
SSOFFSETDL:
QOFFSETULAFR: QOFFSETDLAFR:
SSOFFSETULAFR:
SSOFFSETDLAFR:
QCOMPDL:
QDESDLAFR:
SCTYPE: OL
.
QCOMPDL:
QDESDLAFR:
DTX Cell Data
DTXD:
DTXU:
Intra Cell Handover Cell Data
SCTYPE: UL
IHO:
TMAXIHO:
SCTYPE: OL
IHO:
TMAXIHO:
TIHO:
MAXIHO:
QOFFSETUL:
QOFFSETDL: SSOFFSETUL:
SSOFFSETDL:
QOFFSETULAFR: QOFFSETDLAFR:
SSOFFSETULAFR:
SSOFFSETDLAFR:
Assignment To Other Cell - Cell Data
AW:
Overlaid Subcell Locating Data
LOL:
LOLHYST:
TAOL:
TAOLHYST:
Subcell Load Distribution Data
SCLD:
SCLDLL:
SCLDUL:
Advanced Handling of Fast Moving Mobiles (HCS Data):
THO:
NHO:
FASTMSREG:
HCS BSC Data
HSCBAND:
HCSBANDTHR:
LAYER:
HCS Cell Data
LAYER:
176(198)
LAYERTHR:
LAYERHYST:
PSSTEMP:
PTIMTEMP:
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Extended Range Cell Data
XRANGE:
Double BA Lists Cell Data (Measurement Frequencies)
LISTTYPE: ACTIVE
MBCCHNO:
LISTTYPE: IDLE
MBCCHNO:
Idle Channel Measurements Cell Data
ICMSTATE:
INTAVE:
LIMIT1:
LIMIT2:
LIMIT3:
LIMIT4:
CLSRAMP:
HOCLSACC:
RHYST:
Cell Load Sharing BSC Data
LSSTATE:
Cell Load Sharing Cell Data
CLSSTATE:
CLSACC:
CLSLEVEL:
Multi Band Operation BSC Data
MODE:
GSYSTYPE:
Multi Band Operation Cell Data
CSYSTYPE:
MBCR:
Differential Channel Allocation BSC Data
DCASTATE:
EMERGPRL:
STATSINT:
Differential Channel Allocation Priority Profile Data
SDCCHUL:
SDCCHOL:
TCHUL:
TCHOL:
Adaptive Configuration of Logical Channels
ACSTATE:
SLEVEL:
STIME:
GSM-UMTS Cell Reselection and Handover Cell Data
UMFI:
FDDQMIN:
FDDQOFF:
SPRIO:
QSI:
GPRS Link Adaptation
LA:
CHCSDL:
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Interference Rejection Combining Cell Data
IRC:
Multi Band Cell Cell Data
CSYSTYPE:
FBOFFS:
Multi Band Cell Channel Group Data
BAND:
Neighbour Cell Relation Data
Full list of neighbours:
CELLR:
CTYPE: INT
RELATION:
CS:
CAND:
AWOFFSET:
BQOFFSET:
BQOFFSETAFR:
KHYST:
KOFFSET:
LHYST: LOFFSET:
LOHYST:
HYSTSEP:
KOFFSET:
LHYST: LOFFSET:
If EVALTYPE = 1:
TRHYST:
If EVALTYPE = 3:
OFFSET:
CELLR:
CTYPE: EXT
If EVALTYPE = 1:
TRHYST:
TROFFSET:
HIHYST:
RELATION: SINGLE
KHYST:
TROFFSET:
If EVALTYPE = 3:
OFFSET:
HIHYST:
LOHYST:
HYSTSEP:
CGI:
BCCHNO:
LAYER:
LAYERTHR:
LAYERHYST: PSSTEMP:
PTIMTEMP:
AW:
MISSNM:
EXTPEN:
BSPWR:
BSTXPWR:
BSRXMIN:
BSRXSUFF:
SCHO:
MSTXPWR:
MSRXMIN:
MSRXSUFF:
178(198)
BSIC:
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Allocation Data For Transceiver Group, Model G01
CHGR:
TG:
COMB:
TFMODE:
ANTB:
BAND:
SYNCSRC: PCM
FHOP:
RXD:
MPWR
ANT:
ANTA:
TRX data, MODEL G01
TRXC:
TEI:
CTEI:
Allocation Data For Transceiver Group, Model G12
CHGR:
TG:
COMB:
TFMODE:
SYNCSRC:
ANT:
ANTA:
ANTB:
BAND:
RXD:
MPWR:
FHOP:
TRX data, MODEL G12
TRXC:
TEI:
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6
INDEXES
TABLE OF CONTENTS
1
INTRODUCTION
1.1
1.2
CDD STRUCTURE
CONVENTIONS
“The parameter is /valid for/set per/ XXXX”
“Name of the parameter”, e.g. BSPWRB, DCASTATE, MSC NAME
Description items
Description items
2
SITE DATA
2.1
COMMON SITE DATA
RSITE
3
CELL DATA
3.1 COMMON DATA
3.1.1
BSC data
DL
UL
3.1.2
Cell data
BSPWRB
CELL
NEWNAME
CGI
BSIC
BCCHNO
BCCHTYPE
AGBLK
MFRMS
FNOFFSET
ECSC
SCTYPE
3.1.3
BSC exchange property data
MNCDIGITHAND
3.1.4
Cell/subcell data
TSC
MSTXPWR
BSPWRT
3.1.5
Channel group data
CHGR
STATE
HOP
HSN
NUMREQBPC
DCHNO
SDCCH
CCHPOS
TN
CBCH
3.2 NEIGHBOURING CELL RELATION DATA
3.2.1
Neighbouring cell relation data
CELLR
CTYPE
RELATION
CS
3.2.2
3.2.3
180(198)
Additional parameters defined for neighbour cell relations
External neighbour cell data
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.3 IDLE MODE BEHAVIOUR
3.3.1
Paging – MSC data
PAGREP1LA
PAGREPGLOB
PAGNUMBERLA
PAGTIMEFRST1LA
PAGTIMEFRSTGLOB
PAGTIMEREP1LA
PAGTIMEREPGLOB
3.3.2
LATA administration - MSC data
LATAUSED
PAGLATA
PAGREPCT1LA
PAGTIMEREPLATA
3.3.3
Implicit detach – MSC data
BTDM
GTDM
3.3.4
Automatic deregistration – MSC data
TDD
3.3.5
Idle mode behaviour – cell data
ACCMIN
CCHPWR
CRH
NCCPERM
SIMSG
MSGDIST
CB
CBQ
ACC
MAXRET
TX
ATT
T3212
CRO
TO
PT
3.4 LOCATING
3.4.1
Intra-MSC handover – MSC data
HNDRELCHINTRA
HNDSDCCH
HNDSDCCHTCH
HNDTCMDINTRA
HNDTGSOPINTRA
3.4.2
Inter-MSC handover in anchor MSC – MSC data
HNDSDCCHINTO
HNDBEFOREBANSW
3.4.3
Inter-MSC handover in non-anchor MSC – MSC data
HNDSDCCHINTI
3.4.4
BSC exchange property data
FASTASSIGN
NOOFPHYSINFOMSG
TIMER3105
3.4.5
Algorithm selection – BSC data
EVALTYPE
3.4.6
Flow control – BSC data
TINIT
TALLOC
TURGEN
3.4.7
Filter control – BSC data
TAAVELEN
3.4.8
Filter control – cell data
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
SSEVALSD
QEVALSD
SSEVALSI
QEVALSI
SSLENSD
QLENSD
SSLENSI
QLENSI
SSRAMPSD
SSRAMPSI
MISSNM
3.4.9
Basic ranking – cell data
BSPWR
MSRXMIN
BSRXMIN
MSRXSUFF
BSRXSUFF
3.4.10
Basic ranking – cell/subcell data
BSTXPWR
3.4.11
Basic ranking – neighbour cell data
Parameters for the Ericsson1 locating algorithm
KHYST
LHYST
TRHYST
KOFFSET
LOFFSET
TROFFSET
Parameters for the Ericsson3 locating algorithm
HIHYST
LOHYST
HYSTSEP
OFFSET
3.4.12
Urgency conditions – BSC exchange property data
BADQDL
BADQUL
LOWSSDL
LOWSSUL
3.4.13
Urgency conditions – cell data
TALIM
PSSBQ
PSSTA
PTIMBQ
PTIMTA
3.4.14
Urgency conditions – neighbour cell data
BQOFFSET
BQOFFSETAFR
3.4.15
Urgency conditions – external neighbour cell data
EXTPEN
3.4.16
Urgency conditions – cell/subcell data
QLIMDL
QLIMDLAFR
QLIMUL
QLIMULAFR
3.4.17
Handover failure – cell data
PSSHF
PTIMHF
3.4.18
Signalling channel handover – BSC data
IBHOSICH
IHOSICH
3.4.19
Signalling channel handover – cell data
SCHO
182(198)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.4.20
RPD load – cell data
CELLQ
3.4.21
Disconnection algorithm – cell data
MAXTA
RLINKUP
RLINKT
3.4.22
Handover power boost - cell data
HPBSTATE
3.5 CHANNEL ADMINISTRATION/IMMEDIATE ASSIGNMENT ON TCH
3.5.1
MSC controlling parameters
CRT
PSCVL
3.5.2
BSC exchange property data
CHALLOC
EBANDINCLUDED
MAXCHDATARATE
SPEECHVERUSED
TLDTH
3.5.3
Multislot configuration - BSC data
BSCMC
3.5.4
Cell data
CMDR
CHAP
NECI
MC
3.6 GPRS/EGPRS CHANNEL ADMINISTRATION
3.6.1
BSC exchange property data
CHCODING
GPRSNWMODE
GPRSPRIO
PILTIMER
ONDEMANDGPHDEV
TBFDLLIMIT
TBFULLIMIT
3.6.2
Cell data
GPRS
FPDCH
PDCHALLOC
PSKONBCCH
3.6.3
Channel group data
NUMREQCS3CS4BPC
NUMREQEGPRSBPC
TN7BCCH
3.7 DYNAMIC MS POWER CONTROL
3.7.1
Cell data
DMPSTATE
AMRPCSTATE
3.7.2
Cell/subcell data
SSDESUL
SSDESULAFR
SSLENUL
LCOMPUL
QDESUL
QDESULAFR
QLENUL
QCOMPUL
REGINTUL
DTXFUL
3.8 GPRS/EGPRS DYNAMIC MS POWER CONTROL
3.8.1
BSC exchange property data
ALPHA
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.8.2
Cell data
GAMMA
3.9 DYNAMIC BTS POWER CONTROL
3.9.1
Cell data
DBPSTATE
AMRPCSTATE
3.9.2
Cell/subcell data
SDCCHREG
SSDESDL
SSDESDLAFR
REGINTDL
SSLENDL
LCOMPDL
QDESDL
QDESDLAFR
QCOMPDL
QLENDL
BSPWRMIN
3.10 DISCONTINUOUS TRANSMISSION
3.10.1
Cell data
DTXD
DTXU
3.11 FREQUENCY HOPPING
3.11.1
Channel group data
HOP
HSN
3.11.2
Hardware characteristic data
FHOP
COMB
CONFMD
3.12 MAIO MANAGEMENT
3.12.1
Channel group data
HOP
HSN
MAIO
3.13 INTRA CELL HANDOVER
3.13.1
Cell / subcell data
IHO
TMAXIHO
TIHO
MAXIHO
QOFFSETUL
QOFFSETULAFR
QOFFSETDL
QOFFSETDLAFR
SSOFFSETUL
SSOFFSETULAFR
SSOFFSETDL
SSOFFSETDLAFR
3.14 ASSIGNMENT TO OTHER CELL
3.14.1
BSC data
ASSOC
IBHOASS
3.14.2
Cell data
AW
3.14.3
Neighbour cell data
CAND
AWOFFSET
3.15 OVERLAID/UNDERLAID SUBCELLS / SUBCELL LOAD DISTRIBUTION
3.15.1
BSC exchange property data
184(198)
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Comments:SCLDTIMEINT
3.15.2
Cell data
SCLD
SCLDLL
SCLDUL
3.15.3
Overlaid subcell data
LOL
LOLHYST
TAOL
TAOLHYST
3.16 HIERARCHICAL CELL STRUCTURES
3.16.1
BSC data
HCSBANDHYST
THO
NHO
3.16.2
HCS Band data
HCSBAND
HCSBANDTHR
LAYER
3.16.3
Cell data
LAYER
LAYERTHR
LAYERHYST
PSSTEMP
PTIMTEMP
FASTMSREG
3.17 EXTENDED RANGE
3.17.1
Cell data
XRANGE
MAXTA
TALIM
3.18 DOUBLE BA LISTS
3.18.1
Cell data
MBCCHNO
LISTTYPE
MRNIC
3.19 IDLE CHANNEL MEASUREMENTS
3.19.1
Cell data
ICMSTATE
NOALLOC
INTAVE
LIMITn
3.20 CELL LOAD SHARING
3.20.1
BSC data
Comments:LSSTATE
3.20.2
BSC exchange property data
CLSTIMEINTERVAL
3.20.3
Cell data
CLSSTATE
CLSACC
CLSLEVEL
CLSRAMP
HOCLSACC
RHYST
3.21 MULTIBAND OPERATION
3.21.1
BSC exchange property data
CLMRKMSG
3.21.2
BSC data
MODE
GSYSTYPE
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
185(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.21.3
Cell data
CSYSTYPE
MBCR
3.21.4
Hardware characteristics data
BAND
3.22 DIFFERENTIAL CHANNEL ALLOCATION
3.22.1
MSC exchange property data
CAPLTCHSCH
CAPLTCHEMER
CAPLTCHMOVAL
CAPLSCHMOVAL
CAPLTCHMTVAL
CAPLSCHMTVAL
CAPLTCHMTOVERR
CAPLSCHMTOVERR
CAPLTCHMTPREF
CAPLSCHMTPREF
SMOASSIGN
SMTASSIGN
3.22.2
BSC exchange property data
DCAHANDOVER
3.22.3
BSC data
DCASTATE
EMERGPRL
STATSINT
3.22.4
Cell data
CHTYPE
CHRATE
3.22.5
P P Resource type data
PP
3.22.6
Priority profile (PP) data
PRL
INAC
PROBF
3.23 ENHANCED MULTI-LEVEL PRECEDENCE AND PRE-EMPTION SERVICE (EMLPP)
3.23.1
BSC exchange property data
PHSTATE
3.23.2
MSC, eMLPP data
EMLPP
BAOCI
BOICI
BOIEXHI
PCI
PVI
PRIORITY
QAI
3.24 ADAPTIVE CONFIGURATION OF LOGICAL CHANNELS
3.24.1
Cell data
ACSTATE
SLEVEL
STIME
3.25 GSM - UMTS CELL RESELECTION AND HANDOVER
3.25.1
BSC exchange property data
COEXUMTS
COEXUMTSINT
3.25.2
GSM - UMTS Cell Reselection - cell data
UMFI
FDDQMIN
FDDQOFF
SPRIO
QSI
186(198)
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
3.25.3
GSM - UMTS Handover - UTRAN cell data
CELL
NEWNAME
FDDARFCN
SCRCODE
UTRANID
MRSL
3.25.4
GSM - UMTS Handover - GSM cell data
ISHOLEV
FDDMRR
QSC
QSCI
3.25.5
GSM - UMTS Handover - neighbouring cell relation data
CELLR
3.26 ADAPTIVE MULTI RATE
3.26.1
BSC exchange property data
AMRSUPPORT
3.27 LINK QUALITY CONTROL IN ENHANCED GPRS
3.27.1
BSC exchange property data
LQCACT
LQCIR
LQCDEFAULTMCSDL
LQCDEFAULTMCSUL
LQCHIGHMCS
LQCUNACK
3.28 GPRS LINK ADAPTATION
3.28.1
Cell data
LA
CHCSDL
3.29 GPRS/EGPRS QUALITY OF SERVICE
3.29.1
BSC exchange property data
PCUQOS
THPMBRFACTOR
QOSTHP1
QOSTHP2
CONVSTREAMTHP
3.30 INTERFERENCE REJECTION COMBINING
3.30.1
Cell data
IRC
3.31 MULTI BAND CELL
3.31.1
Cell data
FBOFFS
3.31.2
Channel group data
BAND
3.32 GPRS/EGPRS CONNECTION CONTROL AND TRANSFER
3.32.1
BSC exchange property data
DLDELAY
ESDELAY
TFILIMIT
4
HARDWARE CHARACTERISTICS
4.1
ALLOCATION DATA FOR TRANSCEIVER GROUP
CHGR
TG
TFMODE
SYNCSRC
ANT
ANTA
ANTB
TRXC
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
187(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
TEI
CTEI
TXID
MPWR
RXD
5
CDD FORMS
6
INDEXES
6.1
6.2
6.3
INDEX TO PARAMETERS
INDEX TO COMMANDS
CROSS-REFERENCE: MML-COMMAND PARAMETERS
7 NEW / REMOVED / CHANGED PARAMETERS IN ERICSSON’S GSM SYSTEM R10 /
BSS R10
188(198)
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6.1
Index to parameters
A
ACC ....................................................................... 41
ACCMIN ............................................................... 36
ACSTATE ........................................................... 148
AGBLK ................................................................. 14
ALPHA.................................................................. 94
AMRPCSTATE ............................................. 90, 96
AMRSUPPORT................................................... 158
ANT ..................................................................... 168
ANTA .................................................................. 169
ANTB .................................................................. 169
ASSOC ................................................................ 111
ATT ....................................................................... 43
AW ................................................................ 29, 112
AWOFFSET .................................................. 29, 113
B
BADQDL............................................................... 65
BADQUL............................................................... 65
BAND.......................................................... 134, 164
BAOCI................................................................. 145
BCCHNO......................................................... 12, 29
BCCHTYPE .......................................................... 13
BOICI .................................................................. 145
BOIEXHI............................................................. 146
BQOFFSET ..................................................... 29, 68
BQOFFSETAFR.................................................... 29
BSCMC ................................................................. 80
BSIC ................................................................ 11, 29
BSPWR............................................................ 29, 58
BSPWRB................................................................. 8
BSPWRMIN.......................................................... 99
BSPWRT ............................................................... 19
BSRXMIN ....................................................... 29, 59
BSRXSUFF ..................................................... 29, 60
BSTXPWR ...................................................... 29, 60
BTDM ................................................................... 35
C
CAND............................................................ 29, 112
CAPLSCHMOVAL............................................. 136
CAPLSCHMTOVERR........................................ 137
CAPLSCHMTPREF............................................ 138
CAPLSCHMTVAL ............................................. 137
CAPLTCHEMER ................................................ 135
CAPLTCHMOVAL............................................. 135
CAPLTCHMTOVERR........................................ 137
CAPLTCHMTPREF............................................ 138
CAPLTCHMTVAL ............................................. 136
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
CAPLTCHSCH ...................................................134
CB..........................................................................39
CBCH ....................................................................25
CBQ.......................................................................40
CCHPOS................................................................24
CCHPWR ..............................................................37
CELL .............................................................10, 153
CELLQ ..................................................................73
CELLR...........................................................27, 157
CGI ..................................................................10, 29
CHALLOC.............................................................78
CHAP.....................................................................81
CHCODING ..........................................................83
CHCSDL..............................................................161
CHGR ............................................................20, 166
CHRATE .............................................................141
CHTYPE..............................................................141
CLMRKMSG ......................................................131
CLSACC..............................................................130
CLSLEVEL .........................................................130
CLSRAMP...........................................................130
CLSSTATE ........................................................129
CLSTIMEINTERVAL ........................................129
CMDR ...................................................................81
COEXUMTS .......................................................149
COEXUMTSINT.................................................150
COMB .................................................................103
CONFMD ............................................................103
CONVSTREAMTHP ..........................................162
CRH .......................................................................37
CRO .......................................................................44
CRT .......................................................................76
CS ..........................................................................28
CSYSTYPE .........................................................133
CTEI ....................................................................170
CTYPE...................................................................27
D
DBPSTATE ...........................................................96
DCAHANDOVER...............................................140
DCASTATE........................................................140
DCHNO .................................................................22
DIVERSITY ........................................................151
DL............................................................................8
DLDELAY ..........................................................164
DMPSTATE .........................................................90
DTXD ..................................................................100
DTXFUL ...............................................................94
DTXU ..................................................................101
189(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
E
EBANDINCLUDED ............................................. 78
ECSC ..................................................................... 17
EMERGPRL........................................................ 140
EMLPP ................................................................ 144
ESDELAY ........................................................... 165
EVALTYPE........................................................... 52
EXTPEN.......................................................... 29, 68
F
FASTASSIGN ....................................................... 50
FASTMSREG...................................................... 122
FBOFFS............................................................... 163
FDDARFCN ........................................................ 153
FDDMRR ............................................................ 156
FDDQMIN........................................................... 151
FDDQOFF ........................................................... 151
FHOP................................................................... 102
FNOFFSET............................................................ 16
FPDCH .................................................................. 87
G
GAMMA ............................................................... 95
GPRS .................................................................... 87
GPRSNWMODE................................................... 83
GPRSPRIO ............................................................ 84
GSYSTYPE ......................................................... 132
GTDM ................................................................... 35
H
HCSBAND .......................................................... 118
HCSBANDHYST................................................ 117
HCSBANDTHR .................................................. 118
HIHYST .......................................................... 29, 63
HNDBEFOREBANSW ......................................... 49
HNDRELCHINTRA ............................................. 46
HNDSDCCH ......................................................... 47
HNDSDCCHINTI ................................................. 50
HNDSDCCHINTO................................................ 49
HNDSDCCHTCH ................................................. 47
HNDTCMDINTRA............................................... 48
HNDTGSOPINTRA.............................................. 48
HOCLSACC ........................................................ 131
HOP ....................................................... 21, 101, 104
HPBSTATE.......................................................... 75
HSN ....................................................... 21, 102, 105
HYSTSEP........................................................ 29, 64
I
IBHOASS ............................................................ 111
IBHSICH ............................................................... 71
ICMSTATE........................................................ 126
IHO ...................................................................... 106
IHOSICH ............................................................... 72
INAC ................................................................... 143
INTAVE .............................................................. 127
190(198)
IRC ......................................................................163
ISHOLEV ............................................................155
K
KHYST............................................................29, 61
KOFFSET ........................................................29, 62
L
LA........................................................................160
LATAUSED ..........................................................33
LAYER ..........................................................30, 119
LAYERHYST................................................30, 121
LAYERTHR ..................................................30, 120
LCOMPDL ............................................................98
LCOMPUL ............................................................92
LHYST ............................................................29, 61
LIMIT1 ................................................................127
LIMIT2 ................................................................127
LIMIT3 ................................................................127
LIMIT4 ................................................................127
LISTTYPE...........................................................125
LOFFSET ........................................................29, 62
LOHYST .........................................................29, 63
LOL .....................................................................115
LOLHYST ...........................................................116
LOWSSDL ............................................................65
LOWSSUL ............................................................65
LQCACT .............................................................158
LQCDEFAULTMCSDL......................................159
LQCDEFAULTMCSUL......................................159
LQCHIGHMCS ...................................................160
LQCIR .................................................................159
LQCUNACK .......................................................160
LSSTATE ...........................................................129
M
MAIO...................................................................105
MAXCHDATARATE ...........................................79
MAXIHO.............................................................107
MAXRET ..............................................................41
MAXTA.........................................................74, 123
MBCCHNO .........................................................124
MBCR..................................................................133
MC.........................................................................82
MFDDARFCN.....................................................150
MFRMS .................................................................15
MISSNM .........................................................29, 58
MNCDIGITHAND................................................18
MODE .................................................................132
MPWR.................................................................172
MRNIC ................................................................126
MRSL ..................................................................155
MSCRCODE .......................................................151
MSGDIST..............................................................39
MSRXMIN ......................................................29, 59
MSRXSUFF ....................................................29, 59
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
MSTXPWR ..................................................... 19, 29
N
NCCPERM ............................................................ 38
NECI...................................................................... 82
NEWNAME .................................................. 10, 153
NHO .................................................................... 118
NOALLOC .......................................................... 127
NOOFPHYSINFOMSG ........................................ 51
NUMREQBPC ...................................................... 22
NUMREQCS3CS4BPC......................................... 89
NUMREQEGPRSBPC .......................................... 89
O
OFFSET........................................................... 29, 64
ONDEMANDGPHDEV........................................ 86
P
PAGLATA............................................................. 33
PAGNUMBERLA................................................. 31
PAGREP1LA......................................................... 30
PAGREPCT1LA.................................................... 34
PAGREPGLOB ..................................................... 30
PAGTIMEFRST1LA............................................. 31
PAGTIMEFRSTGLOB ......................................... 32
PAGTIMEREP1LA............................................... 32
PAGTIMEREPGLOB ........................................... 32
PAGTIMEREPLATA............................................ 34
PCI....................................................................... 146
PCUQOS ............................................................. 161
PDCHALLOC ....................................................... 87
PHSTATE............................................................ 144
PILTIMER............................................................. 85
PP......................................................................... 142
PRIORITY........................................................... 147
PRL...................................................................... 143
PROBF ................................................................ 143
PSCVL................................................................... 77
PSKONBCCH ....................................................... 88
PSSBQ................................................................... 66
PSSHF ................................................................... 71
PSSTA ................................................................... 67
PSSTEMP...................................................... 30, 121
PT .......................................................................... 46
PTIMBQ................................................................ 67
PTIMHF ................................................................ 71
PTIMTA ................................................................ 67
PTIMTEMP................................................... 30, 121
PVI....................................................................... 147
Q
QAI ...................................................................... 147
QCOMPDL............................................................ 99
QCOMPUL............................................................ 93
QDESDL ............................................................... 98
QDESDLAFR........................................................ 99
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
QDESUL ...............................................................92
QDESULAFR........................................................93
QEVALSD.............................................................55
QEVALSI ..............................................................55
QLENDL ...............................................................99
QLENSD ...............................................................56
QLENSI .................................................................57
QLENUL ...............................................................93
QLIMDL..........................................................69, 70
QLIMUL................................................................70
QOFFSETDL.......................................................109
QOFFSETDLAFR ...............................................109
QOFFSETUL.......................................................108
QOFFSETULAFR ...............................................108
QOSTHP1............................................................162
QOSTHP2............................................................162
QSC .....................................................................156
QSCI ....................................................................157
QSI.......................................................................152
R
REGINTDL ...........................................................97
REGINTUL ...........................................................93
RELATION ...........................................................28
RHYST ................................................................131
RLINKT.................................................................75
RLINKUP ..............................................................74
RSITE ......................................................................7
RXD.....................................................................172
S
SCHO...............................................................29, 72
SCLD ...................................................................114
SCLDLL ..............................................................114
SCLDTIMEINT...................................................114
SCLDUL..............................................................115
SCRCODE...........................................................154
SCTYPE ................................................................17
SDCCH..................................................................23
SDCCHREG ..........................................................96
SIMSG ...................................................................38
SLEVEL ..............................................................148
SMOASSIGN ......................................................139
SPEECHVERUSED ..............................................79
SPRIO..................................................................152
SSDESDL ..............................................................97
SSDESDLAFR ......................................................97
SSDESUL ..............................................................91
SSDESULAFR ......................................................91
SSEVALSD ...........................................................54
SSEVALSI.............................................................55
SSLENDL..............................................................98
SSLENSD ..............................................................56
SSLENSI ...............................................................56
SSLENUL..............................................................92
SSOFFSETDL .....................................................110
191(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
SSOFFSETDLAFR ............................................. 111
SSOFFSETUL ..................................................... 109
SSOFFSETULAFR ............................................. 110
SSRAMPSD .......................................................... 57
SSRAMPSI ............................................................ 57
STATE................................................................... 21
STATSINT .......................................................... 141
STIME ................................................................. 149
SYNCSRC ........................................................... 168
T
T3212..................................................................... 43
TAAVELEN .......................................................... 53
TALIM .......................................................... 66, 124
TALLOC ............................................................... 53
TAOL .................................................................. 116
TAOLHYST ........................................................ 117
TBFDLLIMIT ....................................................... 86
TBFULLIMIT ....................................................... 86
TDD....................................................................... 35
TEI....................................................................... 170
TFILIMIT ............................................................ 165
TFMODE............................................................. 167
TG........................................................................ 166
THO..................................................................... 117
192(198)
THPMBRFACTOR .............................................162
TIHO....................................................................107
TIMER3105...........................................................51
TINIT.....................................................................52
TLDTH ..................................................................79
TMAXIHO ..........................................................107
TN..........................................................................25
TN7BCCH .............................................................89
TO..........................................................................45
TRHYST..........................................................29, 62
TROFFSET......................................................29, 63
TRXC ..................................................................169
TSC........................................................................18
TURGEN ...............................................................53
TX..........................................................................42
TXID....................................................................171
U
UL............................................................................8
UMFI ...................................................................150
UTRANID ...........................................................154
X
XRANGE.............................................................122
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6.2
Index to commands
M
MGADI.................................................................. 36
MGEPC .31, 32, 33, 34, 46, 47, 48, 49, 50, 135, 136,
137, 138, 139
MGEPP....30, 31, 32, 33, 34, 46, 47, 48, 49, 50, 135,
136, 137, 138, 139
MGETC ............................................... 145, 146, 147
MGIDI ................................................................... 35
MGIDP .................................................................. 35
MGTEI ............................................................ 76, 77
MGTEP ........................................................... 76, 77
R
RAEPC ......18, 51, 65, 66, 78, 79, 83, 84, 85, 86, 95,
114, 129, 131, 140, 144, 149, 150, 158, 159, 160,
161, 162, 163, 164, 165
RAEPP18, 51, 65, 66, 78, 79, 83, 84, 85, 86, 95, 114,
128, 129, 131, 140, 144, 149, 150, 158, 159, 160,
161, 162, 163, 164, 165
RLACC ........................................................ 148, 149
RLACE ................................................................ 148
RLACI ................................................................. 148
RLACP ........................................................ 148, 149
RLAPC ................................................ 91, 93, 97, 99
RLAPE............................................................. 91, 96
RLAPI.............................................................. 91, 96
RLAPP........................................... 91, 93, 96, 97, 99
RLBCC .............................................. 97, 98, 99, 100
RLBCE .................................................................. 96
RLBCI ................................................................... 96
RLBCP ........................................ 96, 97, 98, 99, 100
RLBDC............................................................ 22, 89
RLBDP ............................................................ 22, 89
RLCCC ................................................ 20, 23, 24, 25
RLCDC............................................................ 80, 83
RLCDP ............................................................ 80, 83
RLCFE................................................................... 22
RLCFI.................................................................... 22
RLCFP ..... 20, 21, 22, 23, 24, 25, 101, 102, 104, 105
RLCHC............................ 21, 22, 101, 102, 104, 105
RLCPC............................................................... 9, 19
RLCPP ............................................................... 9, 19
RLCXC................................................................ 100
RLCXP ................................................................ 100
RLDCE ................................................................ 140
RLDCI ................................................................. 140
RLDCP ................................................................ 140
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
RLDEC ......10, 11, 12, 13, 14, 15, 16, 122, 153, 154,
155, 163
RLDEI .............................................10, 27, 133, 153
RLDEP11, 12, 13, 14, 15, 16, 27, 122, 133, 154, 155,
163
RLDGI ...........................................................20, 164
RLDGP ................................................................164
RLDRC ..................................................................81
RLDRP ..................................................................81
RLDSI....................................................................17
RLDTC ..................................................................18
RLDTP ..................................................................18
RLGSC ......................................87, 88, 95, 160, 161
RLGSE...................................................................87
RLGSI....................................................................87
RLGSP.......................................87, 88, 95, 160, 161
RLHBC................................................117, 118, 119
RLHBP ................................................117, 118, 119
RLHPC ..................................................................81
RLHPP...................................................................81
RLIHC .........................106, 107, 108, 109, 110, 111
RLIHP..........................106, 107, 108, 109, 110, 111
RLIMC.........................................................127, 128
RLIME.................................................................126
RLIMI..........................................................126, 127
RLIMP .................................................126, 127, 128
RLLBC ................52, 53, 54, 72, 111, 112, 117, 118
RLLBP.................52, 53, 54, 72, 111, 112, 117, 118
RLLCC ........................................................130, 131
RLLCE.................................................................129
RLLCI..................................................................129
RLLCP.................................................129, 130, 131
RLLDC ..........................................................74, 123
RLLDP...........................................................74, 123
RLLFC.................................................54, 55, 56, 57
RLLFP .................................................54, 55, 56, 57
RLLHC ................................................120, 121, 122
RLLHP...........................................27, 120, 121, 122
RLLLC.........................................................114, 115
RLLLP .........................................................114, 115
RLLOC ..................58, 59, 60, 68, 72, 112, 155, 163
RLLOP...................58, 59, 60, 68, 72, 112, 155, 163
RLLPC.......................................................66, 67, 71
RLLPP .......................................................66, 67, 71
RLLSE .................................................................129
RLLSI ..................................................................129
RLLSP .................................................................129
RLLUC ..................................66, 69, 70, 71, 73, 124
RLLUP...................................66, 69, 70, 71, 73, 124
193(198)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RLMFC........................................................ 124, 126
RLMFP ........................................................ 124, 126
RLNCP ................................................................ 157
RLNRC.............. 27, 28, 61, 62, 63, 64, 68, 112, 113
RLNRE .......................................................... 27, 157
RLNRI ..................................................... 27, 28, 157
RLNRP ...... 27, 28, 61, 62, 63, 64, 68, 112, 113, 157
RLOLC ................................................ 115, 116, 117
RLOLP................................................. 115, 116, 117
RLOMC ............................................................... 132
RLOMP ............................................................... 132
RLPBE................................................................... 75
RLPBI.................................................................... 75
RLPBP................................................................... 75
RLPCC................................................. 91, 92, 93, 94
RLPCE................................................................... 90
RLPCI.................................................................... 90
RLPCP ........................................... 90, 91, 92, 93, 94
RLPPC................................................. 142, 143, 144
RLPPI .................................................................. 142
RLPPP ................................................. 142, 143, 144
RLPRC......................................................... 141, 142
RLPRP ......................................................... 141, 142
RLSBC................... 17, 39, 40, 41, 42, 43, 44, 45, 46
RLSBP ................... 17, 39, 40, 41, 42, 43, 44, 45, 46
RLSCI.................................................................. 141
RLSCP ................................................................. 141
194(198)
RLSMC............................................................38, 39
RLSMP ............................................................38, 39
RLSSC ...........................36, 37, 38, 75, 82, 101, 133
RLSSP ...........................36, 37, 38, 75, 82, 101, 133
RLSTC...................................................................21
RLSTP ...................................................................21
RLSUC ........................................151, 152, 156, 157
RLSUP.........................................151, 152, 156, 157
RLTYC ................................................................132
RLTYI .................................................................132
RLTYP ................................................................132
RLUMC ...............................................................150
RLUMP ...............................................................150
RRLLC ....................................................................8
RRLLP.....................................................................8
RXAPI .................................................................166
RXBLE ................................................................166
RXBLI .................................................................166
RXESI..................................................................166
RXMOC...7, 102, 103, 134, 166, 167, 168, 169, 170,
172
RXMOE...............................................................166
RXMOI....7, 103, 134, 166, 167, 168, 169, 170, 172
RXMOP ...7, 102, 103, 166, 167, 168, 169, 170, 172
RXMSC ...................................7, 103, 167, 168, 169
RXPLI..................................................................166
RXTCI .................................................................166
90/1553-HSC 103 12/4 Uen Rev A 2002-09-25
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6.3
Cross-reference: MML-command parameters
This table describes a number of BSC MML-commands in the subsystem RCS and the
parameters related to the command.
Note: This is not a complete list of MML-commands in RCS, it is merely a list for the
commands that influence the parameters in this document.
RLACC:
RLACI:
RLACP:
RLAPC:
RLBCC:
RLBCE:
RLBCI:
RLBCP:
RLBDC:
RLBDP:
RLCCC:
RLCDC:
CELL{(, ACSTATE)(, SLEVEL)(, STIME)};
CELL;
CELL;
CELL(, SCTYPE){(, SSDESDLAFR)(, QDESDLAFR)(, SSDESULAFR)(, QDESULAFR)};
CELL(, SCTYPE){(, SDCCHREG)(, SSDESDL)(, REGINTDL)(, SSLENDL)
(, LCOMPDL)(, QDESDL)(, QCOMPDL)(, QLENDL)
(, BSPWRMINP/BSPWRMINN)};
CELL;
CELL;
CELL;
CELL(, CHGR), NUMREQBPC (,NUMREQCS3CS4BPC) (,NUMREQEGPRSBPC)
(,TN7BCCH);
CELL(, CHGR);
CELL{(, TN)(, CCHPOS)(, CHGR)(, SDCCH)(, CBCH)};
BSCMC
or RLCDC: CELL, MC;;
CELL;RLCFE: CELL, DCHNO;
CELL(, CHGR)(,DCHNO);
CELL(, CHGR);
CELL(, CHGR), (HOP)(, HSN) (,MAIO);
CELL(, SCTYPE){(, MSTXPWR)(, BSPWRT)(, BSPWRB)};
CELL(,EXT);
CELL, DTXD;
CELL;
RLCDP:
RLCFI:
RLCFP:
RLCHC:
RLCPC:
RLCPP:
RLCXC:
RLCXP:
RLDCE;
RLDCI: EMERGPRL;
RLDCP;
RLDEC: CELL{(, CGI)(, BSIC)(, BCCHNO)(, NEWNAME)(, AGBLK)(, MFRMS)(, BCCHTYPE)
(, FNOFFSET)(, XRANGE)(, FDDARFCN)(, SCRCODE)(, UTRANID)(, MRSL) (, IRC)};
RLDEE: CELL;
RLDEI: CELL(, CSYSTYPE)(, EXT(, UTRAN));
RLDEP: CELL; or RLDEP:CELL=ALL(CSYSTYPE(, EXT));
or RLDEP:CELL=ALL, EXT(, UTRAN);
or RLDEP:CELL=ALL, XRANGE;
RLDGC: CELL, CHGR, SCTYPE;
RLDGE: CELL, CHGR;
RLDGI: CELL, CHGR(, SCTYPE)(, BAND);
RLDGP: CELL;
RLDTC: CELL, SCTYPE, TSC;
RLDTP: CELL;
RLGSC: CELL (.FPDCH) (,GAMMA) (,PDCHALLOC) (,PSKONBCCH)(, LA)(, CHCSDL);
RLGSE: CELL;
RLGSI: CELL;
RLGSP: CELL;
RLHBC: (HCSBANDHYST) (,HCSBAND (,LAYER) (,HCSBANDTHR))
RLHBP;
RLHPC: CELL, CHAP;
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RLHPP: CELL/CHAP;
RLIHC: CELL (, SCTYPE){(, IHO)(, MAXIHO)(, TMAXIHO)(, TIHO)
(, SSOFFSETULP/SSOFFSETULN)(, SSOFFSETULAFRP/SSOFFSETULAFRN)
(, SSOFFSETDLP/SSOFFSETDLN)(, SSOFFSETDLAFRP/SSOFFSETDLAFRN)
(, QOFFSETULP/QOFFSETULN)(, QOFFSETULAFRP/QOFFSETULAFRN)
(, QOFFSETDLP/QOFFSETDLN)(, QOFFSETDLAFRP/QOFFSETDLAFRN)};
RLIHP: CELL;
RLIMC: CELL{(, INTAVE)(, LIMIT1)(, LIMIT2)(, LIMIT3)(, LIMIT4)};
RLIME: CELL;
RLIMI: CELL(, NOALLOC);
RLIMP: CELL;
RLLBC: (SYSTYPE){(, TAAVELEN)(, TINIT)(, TALLOC)(, TURGEN)(, EVALTYPE)
( THO)(, NHO)(, ASSOC)(, IBHOASS)(, IBHOSICH)(, IHOSICH)};
RLLBP (:SYSTYPE);
RLLCC: CELL{(, CLSLEVEL)(, CLSACC)(, HOCLSACC)(, RHYST)(, CLSRAMP)};
RLLCE: CELL;
RLLCI: CELL;
RLLCP: CELL;
RLLDC: CELL{(, MAXTA)(, RLINKUP)};
RLLDP: CELL;
RLLFC: CELL{(, SSEVALSD)(, QEVALSD)(, SSEVALSI)(, QEVALSI)(, SSLENSD)
(, QLENSD)(, SSLENSI)(, QLENSI)(, SSRAMPSD)(, SSRAMPSI)};
RLLFP: CELL;
RLLHC: CELL{(, LAYER)(, LAYERTHR)(, LAYERHYST)(, PSSTEMP)(, PTIMTEMP)(,
FASTMSREG)};
RLLHP: CELL{(, LAYER)(, EXT)};
RLLLC: CELL{(, SCLD)(, SCLDLL)(, SCLDUL)};
RLLLP: CELL;
RLLOC: CELL (, SCTYPE){(, BSPWR)(, BSTXPWR)(, BSRXMIN)(, BSRXSUFF)
(, MSRXMIN)(, MSRXSUFF)(, SCHO)(, MISSNM)(, AW)(, EXTPEN) (, ISHOLEV)
(, FBOFFS)};
RLLOP: CELL(, EXT);
RLLPC: CELL{(, PTIMHF)(, PTIMBQ)(, PTIMTA)(, PSSHF)(, PSSBQ)(, PSSTA)};
RLLPP: CELL;
RLLSE;
RLLSI;
RLLSP;
RLLUC: CELL(, SCTYPE){(, QLIMUL)(, QLIMDL)(, TALIM)(, CELLQ)(, QLIMULAFR)
(, QLIMDLAFR)};
RLLUP: CELL;
RLMFC: CELL, MBCCHNO(, LISTTYPE)(, MRNIC);
RLMFE: CELL, MBCCHNO(, LISTTYPE)(, MRNIC);
RLMFP: CELL(, LISTTYPE);
RLNRC: CELL, CELLR{(, CS)(, CAND)
(, KHYST)(, KOFFSETP/KOFFSETN)
(, LHYST)(, LOFFSETP/LOFFSETN)
(, TRHYST)(, TROFFSETP/TROFFSETN)
(, AWOFFSET)(, BQOFFSET)(, BQOFFSETAFR)};
or RLNRC:CELL, CELLR{(, CS)(, CAND)
(, HIHYST)(, LOHYST)
(, HYSTSEP)(, OFFSETP/OFFSETN)
(, AWOFFSET)(, BQOFFSET)(, BQOFFSETAFR)};
RLNRE: CELL, CELLR;
RLNRI: CELL, CELLR(, SINGLE);
RLNRP: CELL(, CELLR)(, NODATA);
RLOLC: CELL{(, LOL)(, LOLHYST)(, TAOL)(, TAOLHYST)};
RLOLP: CELL;
RLOMC: MODE;
RLOMP;
RLPCC: CELL (, SCTYPE){(, SSDESUL)(, SSLENUL)(, LCOMPUL)(, QDESUL)(, QLENUL)
(, QCOMPUL)(, REGINTUL)(, DTXFUL)};
196(198)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RLPCE:
RLPCI:
RLPCP:
RLPPC:
RLPPE:
RLPPI:
RLPPP:
RLPRC:
RLPRP:
RLSBC:
CELL;
CELL;
CELL;
PP, PRL{(, INAC)(, PROBF)};
PP;
PP(, PP1);
PP;
CELL(, SCTYPE), CHTYPE, PP;
PP; or RLPRP:CELL(, CHTYPE);
CELL{(, CB)(, ACC)(, MAXRET)(, TX)(, ATT)(, T3212)(, CBQ)(, CRO)
(, TO)(, PT)(, ECSC)};
RLSBP: CELL;
RLSCE;
RLSCI: STATSINT;
RLSCP;
RLSMC: CELL, SIMSG, MSGDIST;
RLSMP: CELL(, SIMSG)(, MSGDIST);
RLSUC: CELL{(, QSI)(, FDDQMIN)(, FDDQOFF)(, SPRIO)(, FDDMRR)(, QSC)(, QSCI)};
RLSUP: CELL;
RLSSC: CELL{(, ACCMIN)(, CCHPWR)(, CRH)(, DTXU)(, NCCPERM)(, RLINKT)
(, NECI)(, MBCR)};
RLSSP: CELL;
RLSTC: CELL(, CHGR), STATE;
RLSTP: CELL(, STATE);
RLTYC: GSYSTYPE;
RLTYE;
RLTYI: GSYSTYPE;
RLTYP;
RLUMC: CELL, ADD/REM, UMFI;
RLUMP: CELL;
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
7
198(198)
NEW / REMOVED / CHANGED
PARAMETERS IN ERICSSON’S GSM
SYSTEM R10 / BSS R10
New Parameters
Removed
Parameters
Changed
Parameters
BQOFFSETAFR
QLIMDLAFR
QLIMULAFR
SSDESUL
SSLENUL
REGINTUL
QLENUL
SSDESULAFR
QDESULAFR
SSDESDLAFR
QDESDLAFR
SSOFFSETULAFR
QOFFSETULAFR
SSOFFSETDLAFR
QOFFSETDLAFR
AMRPCSTATE
IRC
BAND
FBOFFSET
DLDELAY
ESDELAY
TFILIMIT
SSDES
SSLEN
INIDES
PMARG
INILEN
QLEN
REGINT
LOL
QCOMPUL
CSYSTYPE
LQCACT
LQCDEFAULT
LQCHIGHMCS
LQCUNACK
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