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
4
CDD STRUCTURE ...............................................................................................................................................................4
CONVENTIONS ....................................................................................................................................................................4
COMMON DATA..................................................................................................................................................................8
NEIGHBOURING CELL RELATION DATA.......................................................................................................................28
IDLE MODE BEHAVIOUR..................................................................................................................................................31
LOCATING..........................................................................................................................................................................48
CHANNEL ADMINISTRATION/IMMEDIATE ASSIGNMENT ON TCH..........................................................................77
GPRS CHANNEL ADMINISTRATION ..............................................................................................................................84
DYNAMIC MS POWER CONTROL ..................................................................................................................................89
GPRS DYNAMIC MS POWER CONTROL .......................................................................................................................94
DYNAMIC BTS POWER CONTROL .................................................................................................................................95
DISCONTINUOUS TRANSMISSION ..............................................................................................................................99
FREQUENCY HOPPING..............................................................................................................................................100
MAIO M ANAGEMENT .............................................................................................................................................103
INTRA CELL HANDOVER ..........................................................................................................................................105
A SSIGNMENT TO OTHER CELL ...............................................................................................................................108
OVERLAID/UNDERLAID SUBCELLS / SUBCELL LOAD DISTRIBUTION ..............................................................110
HIERARCHICAL CELL STRUCTURES .......................................................................................................................114
EXTENDED RANGE ....................................................................................................................................................119
DOUBLE BA LISTS.....................................................................................................................................................121
IDLE CHANNEL MEASUREMENTS...........................................................................................................................123
CELL LOAD SHARING................................................................................................................................................125
M ULTIBAND OPERATION........................................................................................................................................128
DIFFERENTIAL CHANNEL A LLOCATION..............................................................................................................131
ENHANCED M ULTI-LEVEL PRECEDENCE AND PRE -EMPTION SERVICE (EMLPP) ........................................141
A DAPTIVE CONFIGURATION OF LOGICAL CHANNELS.......................................................................................145
GSM - UMTS CELL RESELECTION ........................................................................................................................147
HARDWARE CHARACTERISTICS .............................................................................................................................151
4.1
A LLOCATION DATA FOR TRANSCEIVER GROUP .......................................................................................................151
5
CDD FORMS ......................................................................................................................................................................159
6
INDEXES .............................................................................................................................................................................165
6.2
6.3
INDEX TO PARAMETERS...............................................................................................................................................174
INDEX TO COMMANDS ..................................................................................................................................................178
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6.4
7
CROSS-REFERENCE : MML- COMMAND PARAMETERS ..............................................................................................180
NEW / REMOVED / CHANGED PARAMETERS IN ERICSSON’S GSM SYSTEM R9/BSS R9.0...................183
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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, R9. 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 R9
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 900, GSM 1800 and GSM 1900 differ are indicated.
This document assumes that the reader is acquainted with the channel
structure for 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.
Cel
Underlaid
Subcel
Channel
group
...
Overa
ld
i
Subcel
Channel
group
Channel
group
...
Channel
group
Figure 1 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”
4(183)
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.
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Cell
The parameter is valid for both UL and OL subcell,
if there is a subcell structure defined.
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.
6(183)
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
8(183)
Type:
Numeral.
Range:
0 to 63.
Unit:
dBm.
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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 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 900 (TRU: KRC 131 47/01):
35 to 43 dBm, odd values only.
GSM 900 (TRU: KRC 131 47/03):
35 to 47 dBm and 49, odd values
only. 49 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
47 dBm. A BTS with filter
combiner does not support
SW Power Boost.
GSM 1800:
33 to 45 dBm and 47, odd values
only. 47 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
45 dBm. A BTS with filter
combiner does not support
SW Power Boost.
GSM 1900:
33 to 45 dBm and 47, odd values
only. 47 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
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configuration is configured
45 dBm. A BTS with filter
combiner does not support
SW Power Boost.
Note: If one or more GSM TRU type KRC 131 47/01 is used
within one site the maximum output power for that site shall be
limited to 43 dBm. To ensure that, the parameter MPWR (see
page 157) shall be set to 43 dBm for all TXs on that site.
For RBS 2301 and 2302 (micro) the following is valid:
GSM 900:
21 to 33 dBm and 35, odd values
only. 35 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
33 dBm. A BTS with filter
combiner does not support
SW Power Boost.
GSM 1800:
21 to 33 dBm and 35, odd values
only. 35 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
33 dBm. A BTS with filter
combiner does not support
SW Power Boost.
GSM 1900:
21 to 33 dBm and 35, odd values
only. 35 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
33 dBm. A BTS with filter
combiner does not support
SW Power Boost.
For RBS 2401 indoor the following is valid:
GSM 900:
7 to 19 dBm, odd values only.
GSM 1800:
9 to 21 dBm, odd values only.
CELL
Type:
10(183)
String.
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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:
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
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).
Unit:
–
Default:
–
Command:
RLDEC, RLDEP.
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O&M:
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 MCCMNC-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:
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):
The measured signal le vels on the serving cell.
The measured levels, the BSIC and the BCCH frequency of the
neighbouring cells.
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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:
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:
The parameter is only allowed to be changed in cell state
HALTED.
Comments:
Absolute RF channel number for BCCH.
Absolute RF channel number already defined for a dedicated
channel can not be used.
The frequency carrying the BCCH (Broadcast Control Channel)
in a cell, is defined by the Absolute Radio Frequency Channel
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Number, ARFCN, with the parameter BCCHNO. The defined
ARFCN must be unique within the cell.
According to the GSM 900 recommendations the channels are
numbered as follows:
f l(n) = 890.2 + 0.2*(n−1) in MHz, where n (Absolute Radio
Frequency Channel Number, ARFCN) goes from 1 to 124 and f l
is a frequency in the lower band, BTS receiver.
f u(n) = f l(n) + 45 in MHz, where n goes from 1 to 124 and f u is a
frequency in the upper band, BTS transmitter.
According to the GSM 1800 recommendations the channels are
numbered as follows:
f l(n) = 1710.2 + 0.2*(n−512) in MHz, where n (Absolute Radio
Frequency Channel Number, ARFCN) goes from 512 to 885 and
f l is a frequency in the lower band, BTS receiver.
f u(n) = f l(n) + 95 in MHz, where n goes from 512 to 885 and f u
is a frequency in the upper band, BTS transmitter.
According to the GSM 1900 recommendations the channels are
numbered as follows:
f l(n) = 1850.2 + 0.2*(n−512) in MHz, where n (Absolute Radio
Frequency Channel Number, ARFCN) goes from 512 to 810 and
f l is a frequency in the lower band, BTS receiver.
f u(n) = f l(n) + 80 in MHz, where n goes from 512 to 810 and f u
is a frequency in the upper band, BTS transmitter.
BCCHTYPE
14(183)
Type:
Identifier.
Range:
COMB, COMBC, NCOMB.
Unit:
–
Default:
NCOMB.
Command:
RLDEC, RLDEP.
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.
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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
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.
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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
16(183)
Type:
Numeral.
Range:
2 to 9.
Unit:
CCCH multiframes.
Default:
6.
Command:
RLDEC, RLDEP.
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.
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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
synchronised two or three sector site the time for decoding BSIC
can be reduced.
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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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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
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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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 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.
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 900 (TRU: KRC 131 47/01):
35 to 43 dBm, odd values only.
GSM 900 (TRU: KRC 131 47/03):
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35 to 47 dBm and 49, odd values
only. 49 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
47 dBm. An BTS with filter
combiner does not support
SW Power Boost.
GSM 1800:
33 to 45 dBm and 47, odd values
only. 47 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
45 dBm. An BTS with filter
combiner does not support
SW Power Boost.
GSM 1900:
33 to 45 dBm and 47, odd values
only. 47 is used to activate the
feature SW Power Boost. TX
diversity is used and each TX
supporting the mater-slave
configuration is configured
45 dBm. An BTS with filter
combiner does not support
SW Power Boost.
Note: If one or more GSM TRU type KRC 131 47/01 is used
within one site the maximum output power for that site shall be
limited to 43 dBm. To ensure that, the parameter MPWR (see
page 157) shall be set to 43 dBm for all TXs on that site.
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:
–
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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.
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
22(183)
Type:
Identifier.
Range:
ON, OFF, TCH.
Unit:
–
Default:
OFF.
Command:
RLCHC, RLCFP.
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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:
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
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:
–
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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
Type:
Numeral.
Range:
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.
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 16 DCHNO per channel group can be defined
except for channel group 0, which allows only 15 DCHNO. This
is because one RF channel has to be reserved for the BCCH
that is defined by BCCHNO.
A maximum of 31 DCHNO per cell can be defined in GSM 900.
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
24(183)
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.
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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).
• 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 145).
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CCHPOS
Type:
Identifier.
Range:
BCCH, TN.
Unit:
–
Default:
TN.
Command:
RLCCC, RLCFP.
O&M:
–
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:
26(183)
Identifier.
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Range:
YES, NO.
Unit:
–
Default:
NO.
Command:
RLCCC, RLCFP.
O&M:
–
Comments:
Cell broadcast channel. CBCH cannot be defined for an overlaid
subcell.
YES
CBCH shall be included in one of the SDCCH/8 for the
cell or channel group.
NO
No SDCCH/8 for the cell or channel group shall include
CBCH.
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3.2
Neighbouring cell relation data
3.2.1
Neighbouring cell relation data
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
28(183)
Type:
String.
Range:
EXT, Omitted.
Unit:
–
Default:
Omitted.
Command:
RLDEI, RLLHP, RLDEP.
O&M:
–
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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, LEVEL, LEVTHR, LEVHYST,
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.
Handover to an OL subcell is only allowed when the neighbour is
co-sited with the serving cell.
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YES
NO
3.2.2
Cell is co-sited with neighbour.
Cell is not co-sited with neighbour.
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
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
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
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AW
LEVEL
LEVTHR
LEVHYST
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
Type:
Numeral.
Range:
0 to 1.
Unit:
–
Default:
0.
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Command:
DBTSP:TAB=AXEPARS,SETNAME=GSMMMSC.
O&M:
–
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
32(183)
Type:
Numeral.
Range:
2 to 10.
Unit:
s.
Default:
4.
Command:
MGEPC , MGEPP.
O&M:
–
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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.
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.
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PAGTIMEREPGLOB
Type:
Numeral.
Range:
2 to 10.
Unit:
s.
Default:
7.
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:
34(183)
?.
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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.
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.
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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.
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
36(183)
Type:
Numeral.
Range:
0 to 255.
Unit:
min.
Default:
–
Command:
MGIDP , MGIDI.
O&M:
–
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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.
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.
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
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greater than −48 dBm (level 63)
−49 to −48 dBm
(level 62)
37(183)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
···
108
109
110
−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:
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
38(183)
Type:
Numeral.
Range:
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.
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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.
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.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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.
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:
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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.
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.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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).
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
10
Access classes that are barred.
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
42(183)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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
12
13
14
15
PLMN use.
Security Services.
Public utilities.
Emergency services.
PLMN staff.
MAXRET
Type:
Numeral.
Range:
1, 2, 4, 7.
Unit:
–
Default:
4.
Command:
RLSBC, RLSBP.
O&M:
–
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
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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.
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:
44(183)
Identifier.
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Range:
YES, NO.
Unit:
–
Default:
YES.
Command:
RLSBC, RLSBP.
O&M:
–
Comments:
Attach-detach allowed.
NO
YES
MSs in the cell are not allowed to apply IMSI attach and
detach.
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:
Numeral.
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 36.
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
1
255
Infinite time-out.
0.1 hours.
···
25.5 hours.
CRO
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
0.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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
1
···
63
0 dB
2 dB
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.
The reselection quantity C2 is defined as:
C2 = C1 + CRO − TO * H(PT − T)
C2 = C1 − CRO
for PT ≠ 31
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 37).
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).
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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
1
···
6
7
0 dB
10 dB
60 dB
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
1
···
31
20 seconds
40 seconds
620 seconds.
The value 31 indicates that the cell reselection offset is negative
and that the temporary offset is ignored.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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
Type:
Numeral.
Range:
0, 1
Unit:
–
Default:
1
Command:
MGEPC , MGEPP.
O&M:
–
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
48(183)
Type:
Numeral.
Range:
0, 1
Unit:
–
Default:
1
Command:
MGEPC , MGEPP.
O&M:
–
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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.
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:
–
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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
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.
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
50(183)
Type:
Numeral.
Range:
0, 1
Unit:
–
Default:
1
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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.
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.
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Command:
MGEPC , MGEPP.
O&M:
–
Comments:
Incoming inter-MSC handover on signalling channels in nonanchor 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
Type:
Numeral.
Range:
0, 1.
Unit:
–
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
1
Wait for measurement results.
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
52(183)
Type:
Numeral.
Range:
0 to 254.
Unit:
–
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Default:
35.
Command:
RAEPC, RAEPP.
O&M:
–
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.
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
3
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Cell ranking by the Ericsson1 locating algorithm.
Cell ranking by the Ericsson3 locating algorithm.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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.
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.
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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:
–
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
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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
6
7
8
9
General FIR filters.
Straight average filter.
Exponential filter.
First order Butterworth filter.
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
Type:
Numeral.
Range:
1 to 9.
Unit:
–
Default:
6.
Command:
RLLFC, RLLFP.
O&M:
–
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
56(183)
Type:
Numeral.
Range:
1 to 9.
Unit:
–
Default:
6.
Command:
RLLFC, RLLFP.
O&M:
–
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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.
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:
–
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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
Type:
Numeral.
Range:
1 to 20.
Unit:
SACCH periods (480 ms).
Default:
4.
Command:
RLLFC, RLLFP.
O&M:
–
Comments:
Length of signal strength filter for signalling only.
SSLENSI shall be specified only when SSEVALSI is in the
range 6 to 9.
QLENSI
58(183)
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 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.
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:
–
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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
Type:
Numeral.
Range:
0 to 80.
Unit:
dBm.
Default.
–
Command:
RLLOC, RLLOP.
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
60(183)
Type:
Numeral.
Range:
0 to 150.
Unit:
dBm (negative).
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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:
–
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.
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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.
3.4.11
Basic ranking – neighbour cell data
Parameters for the Ericsson1 locating algorithm
KHYST
Type:
62(183)
Numeral.
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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.
TRHYST
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
2.
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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
64(183)
Type:
Numeral.
Range:
−63 to 63.
Unit:
dB.
Default:
0.
Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Path loss offset when evaluating L-cells.
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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.
Default:
3.
Command:
RLNRC, RLNRP.
O&M:
–
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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).
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3.4.13
Default:
104.
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 Extended range cells with RBS2000.
0 to 133 Extended range cells with RBS200 using SPP-boards.
0 to 63 Normal range cells.
PSSBQ
68(183)
Type:
Numeral.
Range:
0 to 63.
Unit:
dB.
Default:
10.
Command:
RLLPC, RLLPP.
O&M:
–
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Comments:
Signal strength penalty when handover due to bad quality. This
penalty is valid during PTIMBQ.
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:
–
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Comments:
3.4.14
Penalty time when handover due to too large timing advance.
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.
Note: BQOFFSET is defined as a cell to cell relation and is a
symmetrical parameter.
3.4.15
Urgency conditions – external neighbour cell data
EXTPEN
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLLOC, RLLOP.
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 inter-BSC 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.
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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.
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.
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.
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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.
3.4.17
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:
72(183)
Identifier.
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Range:
ON, OFF.
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
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on the TCH, i.e. the locating function prepares a ranking list and
sends it to the handover function.
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 set-up
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 Extended range cells with RBS2000.
0 to 133 Extended range cells with RBS200 using SPP-boards.
0 to 63 Normal range cells.
Note: MAXTA should always be greater than the parameter
TALIM (page 68). 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
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disconnection criterion is of the same type as 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
76(183)
Type:
Identifier.
Range:
ACTIVE, INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLPBI, RLPBP , RLPBE.
O&M:
–
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Comments:
Handover Power Boost State.
ACTIVE
INACTIVE
Handover power boost active.
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: FR, DFR, DHR.
SCRT: FR, HR, DFRC, DHRC, DFRN, DHRN, DRSC, DRSN.
Unit:
−
Default:
−
Command:
MGTEI, MGTEP.
O&M:
–
Comments:
Channel Rate and Type.
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
DFR
DHR
Full Rate channel.
Dual rate, Full Rate preferred.
Dual rate, Half Rate preferred.
SCRT:
FR
HR
DFRC
DHRC
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Full Rate channel.
Half Rate channel.
Dual rate, Full Rate preferred, Change allowed after
first channel allocation as a result of the request.
Dual rate, Half Rate preferred, Change allowed after
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first channel allocation as a result of the request.
Dual rate, Full Rate preferred, change not allowed
after first channel allocation as a result of the request.
Dual rate, Half Rate preferred, change not allowed
after first channel allocation as a result of the request.
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.
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.
DFRN
DHRN
DRSC
DRSN
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.
3.5.2
BSC exchange property data
CHALLOC
Type:
78(183)
Numeral.
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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
1
2
No preference.
First preference.
Last preference.
ERBANDSINCLUDED
Type:
Numeral.
Range:
0 and 1.
Unit:
–
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments: ERBANDSINCLUDED 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
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.
MAXCHDATARATE
Type:
Numeral.
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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
144
Max allowed data rate is 9.6 kbits/s per channel.
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
1
Do not place the used speech version at the top in the
list of allowed speech versions.
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.
O&M:
–
Comments: TLDTH is a percentage value of the number of deblocked
TCH/FR from which an absolute threshold value is calculated.
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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 85, 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 ERBANDSINCLUDED 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
OFF
3.5.4
Multiple channels for each MS connection are allowed
in cells with the Multiple Channel switch MC set to
ON.
Multiple channels are not allowed for any MS
connection in any cell, even if the Multiple Channel
switch MC is set to ON.
Cell data
CMDR
Type:
Numeral.
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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
144
Max allowed data rate is 9.6 kbits/s per channel.
Max allowed data rate is 144.4 kbits/s per channel.
CHAP
Type:
Numeral.
Range:
0 to 7.
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:
CHAP = 0 Default
CHAP = 1 Immediate assignment on TCH,
SDCCH chosen first.
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,
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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.
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
1
New establishment causes are NOT supported.
New establishment causes are supported.
MC
Type:
Identifier.
Range:
ON, OFF.
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.
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ON
OFF
Multiple channels for each MS connection allowed in
the cell.
Multiple channels are not allowed for any MS
connection in the cell.
3.6
GPRS Channel administration
3.6.1
BSC exchange property data
CHCODING
Type:
Numeral.
Range:
1 or 2.
Unit:
–
Default:
2.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
CHCODING is used to the GPRS channel-coding scheme. 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.
The following values are available:
1
2
CS-1
CS-2
A cell plan optimised for speech will give similar or better
coverage for GPRS traffic for both CS-1 and CS-2
configurations.
GPRSNWMODE
84(183)
Type:
Numeral.
Range:
0 to 3.
Unit:
–
Default:
2.
Command:
RAEPC, RAEPP.
O&M:
–
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Comments: GPRSNWMODE sets the GPRS network operation mode
The following values are available:
0
GPRS 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 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 88)
2
GPRS Network operation mode II. No master PDCH
will be allocated in the cell.
3
GPRS Network operation mode III. The first dedicated
PDCH allocated in the cell will be the master PDCH,
see the parameter FPDCH (see page 88)
GPRSPRIO
Type:
Numeral.
Range:
0 to 31.
Unit:
Default:
0.
Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Sets the priority between GPRS and the features Dynamic Half
Rate Allocation/Half Rate Packing, Cell Load Sharing and
Subcell Load Distribution. Also, it is used to set the Pre-emption
status of the on-demand PDCH.
32 decimal values (5 bits) are possible for GPRSPRIO, where
each bit describes a function:
E D C B A
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.
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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
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=14 (01 1 1 0), on-demand
PDCH will be counted as idle for the features Dynamic Half
Rate Allocation/Half Rate Packing, busy for the feature Cell
Load Sharing and busy for the feature Subcell Load Distribution.
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 started.
When the PILTIMER expires for a PDCH the channel is
returned to circuit switched domain.
ONDEMANDGPHDEV
86(183)
Type:
Numeral.
Range:
1 and 256.
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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 ondemand 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 ondemand PDCH is done. If the allocation 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
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GPRS
Type:
Identifier.
Range:
ON, OFF.
Unit:
–
Default:
OFF.
Command:
RLGSI, RLGSE , RLGSP.
O&M:
–
Comments:
Activates/deactivates GPRS 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 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 84) the first dedicated PDCH will be configured as master
PDCH.
PDCHALLOC
88(183)
Type:
Identifier.
Range:
NOPREF, FIRST, LAST.
Unit:
–
Default:
NOPREF.
Command:
RLGSC, RLGSP.
O&M:
–
Comments:
PDCHALLOC is used in the channel allocation algorithm to
determine where the first dedicated PSET of PDCH should be
allocated.
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The following values are available:
NOPREF
The channel allocation algorithm should not
consider this parameter.
FIRST
When allocating the first dedicated PDCH it
must be allocated on the non-hopping BCCH
frequency. If no channels are available on the
non-hopping BCCH frequency on-demand
channels are allocated instead, until the
requirement is fulfilled.
LAST
When allocating dedicated PDCH it must not be
allocated on the non-hopping BCCH frequency.
If no channels are available on other frequencies
than the non-hopping BCCH frequency ondemand channels are allocated instead, until the
requirement is fulfilled.
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 process is
divided into two phases, initial phase and stationary phase.
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/INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLPCI, RLPCE, RLPCP .
O&M:
–
Comments:
Dynamic MS power control state.
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The command RLPCI initiates MS dynamic power control in a
cell. The command is valid for both underlaid and overlaid
subcells.
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.
SSDES
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 during the stationary phase. SSDES takes a positive
value that represents the corresponding negative value in
calculations.
INIDES
Type:
Numeral.
Range:
47 to 110.
Unit:
dBm (negative).
Default:
70.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Defines the target values for the desired signal strength uplink as
measured by the BTS in different parts of the power control
interval during the initial phase. INIDES takes a positive value
that represents the corresponding negative value in the
calculations.
SSLEN
90(183)
Type:
Numeral.
Range:
3 to 15.
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Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Length of stationary signal strength filter.
INILEN
Type:
Numeral.
Range:
0, 2 to 5.
Unit:
SACCH periods (480 ms).
Default:
2.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Length of initial signal strength filter.
INILEN = 0 indicates that no special filter is used in the initial
phase.
The power control procedure starts with the initial phase when
the initial filter is filled, i.e. when the number of received
measurement results is equal to INILEN. The procedure
changes phases when the stationary filter is filled, so it is
important to set the value of SSLEN > INILEN.
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 SSDES is performed.
PMARG
Type:
Numeral.
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Range:
0 to 20.
Unit:
dB.
Default:
8.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Power margin on the new channel at assignment, intra-cell
handover and subcell change and on the old channel at
assignment failure or handover failure.
When the MS changes channels due to an assignment, handover,
intra-cell handover, or subcell change the MS may return to the
original channel in case of assignment failure or handover failure.
The most recently ordered power, plus a margin determined by
PMARG, is sent in the next power order message on the
unsuccessfully deserted channel.
PMARG is also added to the first power order sent on the new
channel after assignment, intra-cell handover, and subcell
change.
QDESUL
Type:
Numeral.
Range:
0 to 70.
Unit:
dtqu.
Default:
20.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Desired quality, uplink.
QLEN
92(183)
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.
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QCOMPUL
Type:
Numeral.
Range:
0 to 60.
Unit:
%.
Default:
30.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Quality deviation compensation factor, uplink. When set to zero,
no quality compensation is performed.
REGINT
Type:
Numeral.
Range:
1 to 30.
Unit:
SACCH periods (480 ms).
Default:
5.
Command:
RLPCC, RLPCP.
O&M:
–
Comments:
Regulation interval, stationary, uplink.
MS power regulation is performed at intervals specified by
REGINT. 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
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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 Dynamic MS Power Control
GPRS Dynamic MS Power Control controls the output power of an MS in
GPRS 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
3.8.2
Type:
Numeral.
Range:
0 to 10.
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
94(183)
Type:
Numeral.
Range:
0 to 62, even values.
Unit:
dB.
Default:
0.
Command:
RLGSC, RLGSP.
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3.9
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.
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.
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
Type:
Identifier.
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Range:
ON, OFF.
Unit:
–
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.
REGINTDL
Type:
Numeral.
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.
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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
Type:
Numeral.
Range:
0 to 70.
Unit:
dtqu.
Default:
20.
Command:
RLBCC, RLBCP.
O&M:
–
Comments:
Desired quality, downlink.
QCOMPDL
Type:
Numeral.
Range:
0 to 60.
Unit:
%.
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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.
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).
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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.
DTXU
Type:
Numeral.
Range:
0 to 2.
Unit:
–
Default:
−
Command:
RLSSC, RLSSP.
O&M:
–
Comments:
Uplink DTX indicator.
0
1
2
The MSs may use uplink discontinuous transmission.
The MSs shall use uplink discontinuous transmission.
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).
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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
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:
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
HSN = 1 to 63
100(183)
cyclic hopping sequence.
pseudo random sequences.
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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.
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.
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FLT Filter combiner.
HYB 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 different transceiver,
configured so that they are all hopping using the same set of
frequencies.
102(183)
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.
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FASTREC
3.12
MAIO Management
3.12.1
Channel group data
Indicates that maximum traffic capacity is
recovered as fast as possible. HFS Extension is
performed automatically and immediately when
required.
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:
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.
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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.
MAIO
Type:
Numeral.
Range:
0 to 15 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 16 MAIO values, in the order in which they are to be
allocated to a channel group. This 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.
104(183)
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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
Intra cell handover is allowed.
Intra cell handover is not allowed.
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
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determined by TIHO. This timer will not start before TINIT
has elapsed.
TMAXIHO defines the time interval for the above-mentioned
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:
–
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
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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).
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).
SSOFFSETUL
Type:
Numeral.
Range:
−30 to +30.
Unit:
dB.
Default:
0.
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).
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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).
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
108(183)
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
Type:
Identifier.
Range:
AWN, NHN, BOTH.
Unit:
–
Default:
BOTH.
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Command:
RLNRC, RLNRP.
O&M:
–
Comments:
Candidate type.
Indicates in which cases the related cell shall be treated as a
possible handover candidate.
AWN
NHN
BOTH
Neighbour at assignment to worse cell.
Neighbour at normal handover and at assignment
to better cell.
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:
110(183)
–
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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
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 85, 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 150.
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
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
114(183)
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
Type:
Numeral.
Range:
0 to 150.
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Unit:
dBm (negative).
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
116(183)
Type:
Numeral.
Range:
1 to 8.
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Unit:
–
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
118(183)
Type:
Numeral.
Range:
0 to 600.
Unit:
Seconds.
Default:
0.
Command:
RLLHC, RLLHP.
O&M:
–
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Comments:
Penalty duration.
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
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The cell is an extended range cell.
The cell is a normal cell.
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
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 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 SPPboards. 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 set-up
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 Extended range cells with RBS2000.
0 to 133 Extended range cells with RBS200 using SPP-boards.
0 to 63 Normal range cells.
Note: MAXTA should always be greater than the parameter
TALIM (page 121). 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 Extended range cells with RBS2000.
0 to 133 Extended range cells with RBS200 using SPP-boards.
0 to 63 Normal range cells.
3.18
Double BA lists
3.18.1
Cell data
MBCCHNO
Type:
Numeral.
Range:
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
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
122(183)
Type:
Identifier.
Range:
IDLE, ACTIVE, Omitted.
Unit:
–
Default:
–
Command:
RLMFC, RLMFP.
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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
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
124(183)
Type:
Numeral.
Range:
LIMIT1: 0 to 59.
LIMIT2: 1 to 60.
LIMIT3: 2 to 61.
LIMIT4: 3 to 62.
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Unit:
–
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
1
2
···
61
62
3.20
< −110 dBm
−110 dBm to −109 dBm
−109 dBm to −108 dBm
−50 dBm to −49 dBm
−49 dBm to −48 dBm
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
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O&M:
–
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
126(183)
Range:
ACTIVE, INACTIVE.
Unit:
–
Default:
INACTIVE.
Command:
RLLCI, RLLCE, RLLCP.
O&M:
–
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Comments:
Cell load sharing active/inactive for an individual cell. For
CLSSTATE activation to have effect, LSSTATE must be
activated.
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 85, 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
Type:
Numeral.
Range:
0 to 30.
Unit:
s.
Default:
5.
Command:
RLLCC. , RLLCP
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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.
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
128(183)
Type:
Numeral.
Range:
0 to 3.
Unit:
–
Default:
0.
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Command:
RAEPC, RAEPP.
O&M:
–
Comments:
Classmark message handling.
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
SINGLE
The BSC multiband operation mode is enabled.
The BSC multiband operation mode is disabled.
GSYSTYPE
Type:
Identifier.
Range:
GSM900, GSM1800, GSM1900, MIXED.
Unit:
–
Default:
–
Command:
RLTYC, RLTYI, RLTYP.
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3.21.3
O&M:
–
Comments:
Specifies the system type for the BSC. Defining the parameter
CSYSTYPE is mandatory if the global system type is MIXED.
Cell data
CSYSTYPE
Type:
Identifier.
Range:
GSM900, GSM1800, GSM1900.
Unit:
–
Default:
–
Command:
RLDEI. , RLDEP
O&M:
–
Comments:
Specifies the system type for the cell.
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:
GSM, DCS, PCS.
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.
GSM900
GSM1800
GSM1900
3.22
GSM 900 band.
GSM 1800 band.
GSM 1900 band.
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
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 137.
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
132(183)
Type:
Numeral.
Range:
0 to 15.
Unit:
–
Default:
0.
Command:
MGEPC , MGEPP.
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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 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.
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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
1
The channel allocation priority level value received from the
HLR is to be used.
An operator defined value is to be used.
Note: This parameter is only defined for Ericsson MSCs.
CAPLSCHMTOVERR
134(183)
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
1
The channel allocation priority level value received from the
HLR is to be used.
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
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
1
Message is not sent
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
1
136(183)
Message is not sent
Message is sent
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Note: This parameter is only defined for Ericsson MSCs.
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
1
OFF
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
Type:
Numeral.
Range:
1 to 15.
Unit:
–
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Default:
–
Command:
RLDCI , RLDCP.
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 132), 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
SDCCH
138(183)
Traffic Channel
Stand Alone Dedicated Control Channel
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Note: As a printout parameter in other functions, CHTYPE can
also have the values BCCH and CBCH.
CHRATE
Type:
Identifier.
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:full-rate TCH in the overlaid subcell,
PPRT1.2:half-rate TCH in the overlaid subcell,
PPRT2.1:full-rate TCH in the underlaid subcell,
PPRT2.2:half-rate TCH in the underlaid subcell,
PPRT3: SDCCH in the overlaid subcell,
PPRT4: 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:
–
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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.
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
140(183)
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
0.
Command:
RLPPC, RLPPP
O&M:
–
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Comments:
Percentage of deblocked channels that are inaccessible for the
PRL at differential channel allocation.
PROBF
3.23
Type:
Numeral.
Range:
0 to 100.
Unit:
%.
Default:
0.
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:
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3.23.2
0
The eMLPP parameters are ignored.
1
The eMLPP parameters PCI and PVI are considered in
the channel allocation algorithm.
MSC, eMLPP data
EMLPP
Type:
Identifier.
Range:
A, B, 0 to 4
Unit:
−
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.
142(183)
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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:
–
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
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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.
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
144(183)
Type:
Numeral.
Range:
1 to 14.
Unit:
−
Default:
14
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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.
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.
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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
The attempt to increase the number of
SDCCH/8 will take place when allocation of an
SDCCH has failed due to congestion.
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
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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
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
0
1
OFF
ON
This parameter enables (ON) and disables (OFF) the feature
Coexistence of GSM and UMTS.
3.25.2
Cell data
Note: The settings of the following parameters only affect Multi-RAT FDD
UMTS capable MSs.
UMFI
Type:
MFDDARFCN-MSCRCODE-DIVERSITY
Range:
MFDDARFCN:
0 to 16383.
MSCRCODE: 0 to 511.
DIVERSITY: DIV or NODIV.
Unit:
-
Default:
-
Command:
RLUMC, RLUMP.
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O&M:
–
Comments: UTRAN Measurement Frequency Information for cell
reselection in GSM Idle Mode and GPRS Ready and Standby
states.
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. According to the 3GPP recommendations the channels
are numbered as follows:
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 (21102170MHz), 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
1
···
7
-20 dB
-19 dB
-13 dB.
FDDQOFF
Type:
148(183)
Numeral.
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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.
0
1
2
···
15
-infinite, always select UTRAN FDD cell if acceptable
-28 dB
-24 dB
-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.
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Command:
RLSUC, RLSUP.
O&M:
–
Comments: 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.
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
···
14
15
150(183)
-98 dBm
-94 dBm
-74 dBm
always
-78 dBm
-74 dBm
-54 dBm
never
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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
RBS 200MC
RBS 2101
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7 TRXs
4 TRUs
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RBS 2102
RBS 2202
RBS 2103
RBS 2301
12 TRUs
12 TRUs
12 TRUs
2 TRUs
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
RBS 203
RBS 205
16 TRXs (4 cabinets)
2 TRXs
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.
M
Master. Synchronised from the synchronisation source and
distributed to other TFs.
S
Slave. Synchronised from other TFs.
SA
Standalone. Synchronised from synchronisation source.
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.
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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
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.
Name of antenna connected to transmitter.
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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:
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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
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.
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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
B
AB
Antenna A used only.
Antenna B used only.
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
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
signals. This diversity feature at the transceiver must therefore
be specified for each TRX.
RXD indicates the use of receiver diversity in a given TRX.
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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:
CGI:
BSIC:
BCCHNO:
BCCHTYPE:
AGBLK:
MFRMS:
FNOFFSET:
ECSC:
MSTXPWR:
BSPWRT:
MSTXPWR:
BSPWRT:
SCTYPE: UL
TSC:
SCTYPE: OL
TSC:
Channel Group Data
CHGR: 0
HOP
HSN
NUMREQBPC:
CCHPOS:
TN:
CBCH:
CRH:
NCCPERM:
CB:
ATT:
DCHNO:
SDCCH:
Idle Mode Behaviour Cell Data
ACCMIN:
CCHPWR:
SIMSG 1:
MSGDIST:
SIMSG 7:
MSGDIST:
SIMSG 8:
MSGDIST:
CBQ:
ACC:
MAXRET:
TX:
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:
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
Locating Basic Ranking Cell Data
BSPWR:
MSRXMIN:
BSRXMIN:
SCTYPE: UL
SCTYPE: OL
BSTXPWR:
BSTXPWR:
MSRXSUFF:
BSRXSUFF:
PTIMBQ:
PTIMTA:
Locating Urgency Cell Data
TALIM:
PSSBQ:
PSSHF:
PTIMHF:
PSSTA:
SCTYPE: UL
QLIMDL:
SCTYPE: OL
QLIMUL:
QLIMDL:
QLIMUL:
RLINKUP:
RLINKT:
Locating Misc Cell Data
SCHO:
CELLQ:
MAXTA:
HPBSTATE:
Channel Administration / Immediate Assignment On TCH Cell Data
CHAP:
NECI:
BSCMC:
MC:
GPRS Channel Administration
FPDCH:
PDCHALLOC:
MS Power Control Cell Data
DMPSTATE:
SCTYPE: UL
SSDES:
INIDES:
SSLEN:
INILEN:
LCOMPUL:
PMARG:
QDESUL:
QLEN:
QCOMPUL:
REGINT:
SSDES:
INIDES:
SSLEN:
INILEN:
LCOMPUL:
PMARG:
QDESUL:
QLEN:
QCOMPUL:
REGINT:
DTXFUL:
SCTYPE: OL
DTXFUL:
GPRS MS Power Control Cell Data
GAMMA:
BTS Power Control Cell Data
DBPSTATE:
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
SCTYPE: UL
SDCCHREG:
SSDESDL:
REGINTDL:
SSLENDL:
LCOMPDL:
QDESDL:
QCOMPDL:
QLENDL:
BSPWRMIN:
SCTYPE: OL
.
SDCCHREG:
SSDESDL:
REGINTDL:
SSLENDL:
QDESDL:
QCOMPDL:
QLENDL:
BSPWRMIN:
MAXIHO:
QOFFSETUL:
MAXIHO:
QOFFSETUL:
LCOMPDL:
DTX Cell Data
DTXD:
DTXU:
Intra Cell Handover Cell Data
SCTYPE: UL
IHO:
TMAXIHO:
TIHO:
QOFFSETDL:
SSOFFSETUL:
SSOFFSETDL:
IHO:
TMAXIHO:
TIHO:
QOFFSETDL:
SSOFFSETUL:
SSOFFSETDL:
SCTYPE: OL
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:
HCSBANDTHR:
LAYER:
LAYERTHR:
LAYERHYST:
HCS BSC Data
HSCBAND:
HCS Cell Data
LAYER:
PSSTEMP:
PTIMTEMP:
Extended Range Cell Data
XRANGE:
Double BA Lists Cell Data (Measurement Frequencies)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
LISTTYPE: ACTIVE
MBCCHNO:
LISTTYPE: IDLE
MBCCHNO:
Idle Channel Measurements Cell Data
ICMSTATE:
INTAVE:
LIMIT1:
LIMIT2:
LIMIT3:
LIMIT4:
Cell Load Sharing BSC Data
LSSTATE:
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Cell Load Sharing Cell Data
CLSSTATE:
CLSACC:
CLSLEVEL:
CLSRAMP:
HOCLSACC:
RHYST:
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
UMFI:
FDDQMIN:
FDDQOFF:
SPRIO:
QSI:
Neighbour Cell Relation Data
Full list of neighbours:
CELLR:
CTYPE: INT
RELATION:
CS:
CAND:
AWOFFSET:
BQOFFSET:
If EVALTYPE = 1:
KHYST:
KOFFSET:
LHYST:
LOFFSET:
TRHYST:
TROFFSET:
If EVALTYPE = 3:
HIHYST:
LOHYST:
HYSTSEP:
OFFSET:
CELLR:
CTYPE: EXT
RELATION: SINGLE
If EVALTYPE = 1:
KHYST:
KOFFSET:
LHYST:
LOFFSET:
TRHYST:
TROFFSET:
If EVALTYPE = 3:
HIHYST:
LOHYST:
HYSTSEP:
OFFSET:
CGI:
BSIC:
BCCHNO:
LEVEL:
LEVTHR:
LEVHYST:
PSSTEMP:
PTIMTEMP:
AW:
MISSNM:
EXTPEN:
BSPWR:
BSTXPWR:
BSRXMIN:
BSRXSUFF:
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SCHO:
164(183)
MSTXPWR:
MSRXMIN:
MSRXSUFF:
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Allocation Data For Transceiver Group, Model G01
CHGR:
TG:
COMB:
TFMODE:
ANTB:
BAND:
SYNCSRC: PCM
FHOP:
RXD:
MPWR
FHOP:
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:
TRX data, MODEL G12
TRXC:
TEI:
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
2
SITE DATA
2.1
COMMON SITE DATA
RSITE
3
CELL DATA
3.1 COMMON DATA
6.1.1
3.1.1..................................................................................................................................................BSC data
DL
UL
6.1.2
3.1.2.................................................................................................................................................. Cell data
BSPWRB
CELL
NEWNAME
CGI
BSIC
BCCHNO
BCCHTYPE
AGBLK
MFRMS
FNOFFSET
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ECSC
SCTYPE
6.1.3
3.1.3................................................................................................................... BSC exchange property data
MNCDIGITHAND
6.1.4
3.1.4...................................................................................................................................... Cell/subcell data
TSC
MSTXPWR
BSPWRT
6.1.5
3.1.5.................................................................................................................................Channel group data
CHGR
STATE
HOP
HSN
NUMREQBPC
DCHNO
SDCCH
CCHPOS
TN
CBCH
3.2 NEIGHBOURING CELL RELATION DATA
6.1.6
3.2.1...............................................................................................................Neighbouring cell relation data
CELLR
CTYPE
RELATION
CS
6.1.7
3.2.2.................................................................... Additional parameters defined for neighbour cell relations
6.1.8
3.2.3....................................................................................................................External neighbour cell data
3.3 IDLE MODE BEHAVIOUR
6.1.9
3.3.1.................................................................................................................................Paging – MSC data
PAGREP1LA
PAGREPGLOB
PAGNUMBERLA
PAGTIMEFRST1LA
PAGTIMEFRSTGLOB
PAGTIMEREP1LA
PAGTIMEREPGLOB
6.1.10
3.3.2............................................................................................................LATA administration - MSC data
LATAUSED
PAGLATA
PAGREPCT1LA
PAGTIMEREPLATA
6.1.11
3.3.3.....................................................................................................................Implicit detach – MSC data
BTDM
GTDM
6.1.12
3.3.4.....................................................................................................Automatic deregistration – MSC data
TDD
6.1.13
3.3.5..............................................................................................................Idle mode behaviour – cell data
ACCMIN
CCHPWR
CRH
NCCPERM
SIMSG
MSGDIST
CB
CBQ
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ACC
MAXRET
TX
ATT
T3212
CRO
TO
PT
3.4 LOCATING
6.1.14
3.4.1...........................................................................................................Intra-MSC handover – MSC data
HNDRELCHINTRA
HNDSDCCH
HNDSDCCHTCH
HNDTCMDINTRA
HNDTGSOPINTRA
6.1.15
3.4.2..................................................................................Inter-MSC handover in anchor MSC – MSC data
HNDSDCCHINTO
HNDBEFOREBANSW
6.1.16
3.4.3.......................................................................... Inter-MSC handover in non-anchor MSC – MSC data
HNDSDCCHINTI
6.1.17
3.4.4................................................................................................................... BSC exchange property data
FASTASSIGN
NOOFPHYSINFOMSG
TIMER3105
6.1.18
3.4.5...............................................................................................................Algorithm selection – BSC data
EVALTYPE
6.1.19
3.4.6.........................................................................................................................Flow control – BSC data
TINIT
TALLOC
TURGEN
6.1.20
3.4.7........................................................................................................................ Filter control – BSC data
TAAVELEN
6.1.21
3.4.8..........................................................................................................................Filter control – cell data
SSEVALSD
QEVALSD
SSEVALSI
QEVALSI
SSLENSD
QLENSD
SSLENSI
QLENSI
SSRAMPSD
SSRAMPSI
MISSNM
6.1.22
3.4.9.........................................................................................................................Basic ranking – cell data
BSPWR
MSRXMIN
BSRXMIN
MSRXSUFF
BSRXSUFF
6.1.23
3.4.10...........................................................................................................Basic ranking – cell/subcell data
BSTXPWR
6.1.24
3.4.11..................................................................................................... Basic ranking – neighbour cell data
Parameters for the Ericsson1 locating algorithm
KHYST
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LHYST
TRHYST
KOFFSET
LOFFSET
TROFFSET
Parameters for the Ericsson3 locating algorithm
HIHYST
LOHYST
HYSTSEP
OFFSET
6.1.25
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
BADQUL
LOWSSDL
LOWSSUL
6.1.26
3.4.13..............................................................................................................Urgency conditions – cell data
TALIM
PSSBQ
PSSTA
PTIMBQ
PTIMTA
6.1.27
3.4.14.............................................................................................Urgency conditions – neighbour cell data
BQOFFSET
6.1.28
3.4.15...............................................................................Urgency conditions – external neighbour cell data
EXTPEN
6.1.29
3.4.16..................................................................................................Urgency conditions – cell/subcell data
QLIMDL
QLIMUL
6.1.30
3.4.17................................................................................................................. Handover failure – cell data
PSSHF
PTIMHF
6.1.31
3.4.18..............................................................................................Signalling channel handover – BSC data
IBHOSICH
IHOSICH
6.1.32
3.4.19............................................................................................... Signalling channel handover – cell data
SCHO
6.1.33
3.4.20............................................................................................................................. RPD load – cell data
CELLQ
6.1.34
3.4.21......................................................................................................Disconnection algorithm – cell data
MAXTA
RLINKUP
RLINKT
6.1.35
3.4.22.........................................................................................................Handover power boost - cell data
HPBSTATE
3.5 CHANNEL ADMINISTRATION/IMMEDIATE ASSIGNMENT ON TCH
6.1.36
3.5.1...................................................................................................................MSC controlling parameters
CRT
PSCVL
6.1.37
3.5.2................................................................................................................... BSC exchange property data
CHALLOC
ERBANDSINCLUDED
MAXCHDATARATE
SPEECHVERUSED
TLDTH
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6.1.38
3.5.3..........................................................................................................Multislot configuration - BSC data
BSCMC
6.1.39
3.5.4.................................................................................................................................................. Cell data
CMDR
CHAP
NECI
MC
3.6 GPRS CHANNEL ADMINISTRATION
6.1.40
3.6.1................................................................................................................... BSC exchange property data
CHCODING
GPRSNWMODE
GPRSPRIO
PILTIMER
ONDEMANDGPHDEV
TBFDLLIMIT
TBFULLIMIT
6.1.41
3.6.2.................................................................................................................................................. Cell data
GPRS
FPDCH
PDCHALLOC
3.7 DYNAMIC MS POWER CONTROL
6.1.42
3.7.1.................................................................................................................................................. Cell data
DMPSTATE
6.1.43
3.7.2...................................................................................................................................... Cell/subcell data
SSDES
INIDES
SSLEN
INILEN
LCOMPUL
PMARG
QDESUL
QLEN
QCOMPUL
REGINT
DTXFUL
3.8 GPRS DYNAMIC MS POWER CONTROL
6.1.44
3.8.1................................................................................................................... BSC exchange property data
ALPHA
6.1.45
3.8.2.................................................................................................................................................. Cell data
GAMMA
3.9 DYNAMIC BTS POWER CONTROL
6.1.46
3.9.1.................................................................................................................................................. Cell data
DBPSTATE
6.1.47
3.9.2...................................................................................................................................... Cell/subcell data
SDCCHREG
SSDESDL
REGINTDL
SSLENDL
LCOMPDL
QDESDL
QCOMPDL
QLENDL
BSPWRMIN
3.10
DISCONTINUOUS TRANSMISSION
6.1.48
3.10.1................................................................................................................................................ Cell data
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DTXD
DTXU
3.11
FREQUENCY HOPPING
6.1.49
3.11.1...............................................................................................................................Channel group data
HOP
HSN
6.1.50
3.11.2............................................................................................................... Hardware characteristic data
FHOP
COMB
CONFMD
3.12
MAIO M ANAGEMENT
6.1.51
3.12.1...............................................................................................................................Channel group data
HOP
HSN
MAIO
3.13
INTRA CELL HANDOVER
6.1.52
3.13.1.................................................................................................................................. Cell / subcell data
IHO
TMAXIHO
TIHO
MAXIHO
QOFFSETUL
QOFFSETDL
SSOFFSETUL
SSOFFSETDL
3.14
A SSIGNMENT TO OTHER CELL
6.1.53
3.14.1................................................................................................................................................BSC data
ASSOC
IBHOASS
6.1.54
3.14.2................................................................................................................................................ Cell data
AW
6.1.55
3.14.3............................................................................................................................... Neighbour cell data
CAND
AWOFFSET
3.15
OVERLAID/UNDERLAID SUBCELLS / SUBCELL LOAD DISTRIBUTION
6.1.56
3.15.1................................................................................................................. BSC exchange property data
Comments:SCLDTIMEINT
6.1.57
3.15.2................................................................................................................................................ Cell data
SCLD
SCLDLL
SCLDUL
6.1.58
3.15.3............................................................................................................................ Overlaid subcell data
LOL
LOLHYST
TAOL
TAOLHYST
3.16
HIERARCHICAL CELL STRUCTURES
6.1.59
3.16.1................................................................................................................................................BSC data
HCSBANDHYST
THO
NHO
6.1.60
3.16.2......................................................................................................................................HCS Band data
HCSBAND
HCSBANDTHR
LAYER
170(183)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6.1.61
3.16.3................................................................................................................................................ Cell data
LAYER
LAYERTHR
LAYERHYST
PSSTEMP
PTIMTEMP
FASTMSREG
3.17
EXTENDED RANGE
6.1.62
3.17.1................................................................................................................................................ Cell data
XRANGE
MAXTA
TALIM
3.18
DOUBLE BA LISTS
6.1.63
3.18.1................................................................................................................................................ Cell data
MBCCHNO
LISTTYPE
MRNIC
3.19
IDLE CHANNEL MEASUREMENTS
6.1.64
3.19.1................................................................................................................................................ Cell data
ICMSTATE
NOALLOC
INTAVE
LIMITn
3.20
CELL LOAD SHARING
6.1.65
3.20.1................................................................................................................................................BSC data
Comments:LSSTATE
6.1.66
3.20.2................................................................................................................. BSC exchange property data
CLSTIMEINTERVAL
6.1.67
3.20.3................................................................................................................................................ Cell data
CLSSTATE
CLSACC
CLSLEVEL
CLSRAMP
HOCLSACC
RHYST
3.21
M ULTIBAND OPERATION
6.1.68
3.21.1................................................................................................................. BSC exchange property data
CLMRKMSG
6.1.69
3.21.2................................................................................................................................................BSC data
MODE
Unit: –
GSYSTYPE
6.1.70
3.21.3................................................................................................................................................ Cell data
CSYSTYPE
MBCR
6.1.71
3.21.4..............................................................................................................Hardware characteristics data
BAND
3.22
DIFFERENTIAL CHANNEL A LLOCATION
6.1.72
3.22.1................................................................................................................ MSC exchange property data
CAPLTCHSCH
CAPLTCHEMER
CAPLTCHMOVAL
CAPLSCHMOVAL
CAPLTCHMTVAL
CAPLSCHMTVAL
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171(183)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
CAPLTCHMTOVERR
CAPLSCHMTOVERR
CAPLTCHMTPREF
CAPLSCHMTPREF
SMOASSIGN
SMTASSIGN
6.1.73
3.22.2................................................................................................................. BSC exchange property data
DCAHANDOVER
6.1.74
3.22.3................................................................................................................................................BSC data
DCASTATE
EMERGPRL
STATSINT
6.1.75
3.22.4................................................................................................................................................ Cell data
CHTYPE
CHRATE
6.1.76
3.22.5..........................................................................................................................P P Resource type data
PP
6.1.77
3.22.6.......................................................................................................................Priority profile (PP) data
PRL
INAC
PROBF
3.23
ENHANCED M ULTI-LEVEL PRECEDENCE AND PRE -EMPTION SERVICE (EMLPP)
6.1.78
3.23.1................................................................................................................. BSC exchange property data
PHSTATE
6.1.79
3.23.2.................................................................................................................................MSC, eMLPP data
EMLPP
BAOCI
BOICI
BOIEXHI
PCI
PVI
PRIORITY
QAI
3.24
A DAPTIVE CONFIGURATION OF LOGICAL CHANNELS
6.1.80
3.24.1................................................................................................................................................ Cell data
ACSTATE
SLEVEL
STIME
3.25
GSM - UMTS CELL RESELECTION
6.1.81
3.25.1................................................................................................................. BSC exchange property data
COEXUMTS
6.1.82
3.25.2................................................................................................................................................ Cell data
UMFI
FDDQMIN
FDDQOFF
SPRIO
QSI
4
HARDWARE CHARACTERISTICS
4.1
A LLOCATION DATA FOR TRANSCEIVER GROUP
CHGR
TG
TFMODE
SYNCSRC
ANT
172(183)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
ANTA
ANTB
TRXC
TEI
CTEI
TXID
MPWR
RXD
5
CDD FORMS
6
INDEXES
6.2
6.3
6.4
7
INDEX TO PARAMETERS
INDEX TO COMMANDS
CROSS-REFERENCE : MML- COMMAND PARAMETERS
NEW / REMOVED / CHANGED PARAMETERS IN ERICSSON’S GSM SYSTEM R9/BSS R9.0
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173(183)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6.2
Index to parameters
A
ACC...................................................................................42
ACCMIN ..........................................................................37
ACSTATE......................................................................145
AGBLK .............................................................................15
ALPHA .............................................................................94
ANT ................................................................................153
ANTA .............................................................................154
ANTB..............................................................................154
ASSOC............................................................................108
ATT...................................................................................44
AW............................................................................31, 109
AWOFFSET.............................................................30, 110
B
BADQDL..........................................................................67
BADQUL..........................................................................67
BAND .............................................................................131
BAOCI ............................................................................142
BCCHNO ....................................................................13, 30
BCCHTYPE......................................................................14
BOICI ..............................................................................143
BOIEXHI.........................................................................143
BQOFFSET.................................................................30, 70
BSCMC.............................................................................81
BSIC ............................................................................12, 30
BSPWR.......................................................................30, 60
BSPWRB ............................................................................8
BSPWRMIN.....................................................................98
BSPWRT ..........................................................................20
BSRXMIN ..................................................................30, 61
BSRXSUFF.................................................................30, 62
BSTXPWR.................................................................30, 62
BTDM ...............................................................................36
C
CAND .......................................................................30, 109
CAPLSCHMOVAL.......................................................133
CAPLSCHMTOVERR...................................................134
CAPLSCHMTPREF ......................................................135
CAPLSCHMTVAL........................................................134
CAPLTCHEMER...........................................................132
CAPLTCHMOVAL.......................................................132
CAPLTCHMTOVERR ..................................................134
CAPLTCHMTPREF ......................................................135
CAPLTCHMTVAL.......................................................133
CAPLTCHSCH ..............................................................131
CB......................................................................................41
174(183)
CBCH ................................................................................26
CBQ...................................................................................41
CCHPOS ...........................................................................26
CCHPWR..........................................................................38
CELL..................................................................................10
CELLQ...............................................................................74
CELLR...............................................................................28
CGI...............................................................................11, 30
CHALLOC........................................................................78
CHAP................................................................................82
CHCODING......................................................................84
CHGR ........................................................................21, 151
CHRATE.........................................................................139
CHTYPE..........................................................................138
CLMRKMSG..................................................................128
CLSACC .........................................................................127
CLSLEVEL......................................................................127
CLSRAMP......................................................................127
CLSSTATE....................................................................126
CLSTIMEINTERVAL...................................................126
CMDR...............................................................................81
COEXUMTS ..................................................................147
COMB.............................................................................101
CONFMD.......................................................................102
CRH...................................................................................39
CRO...................................................................................45
CRT ...................................................................................77
CS ......................................................................................29
CSYSTYPE.....................................................................130
CTEI ................................................................................155
CTYPE..............................................................................28
D
DBPSTATE......................................................................95
DCAHANDOVER .........................................................137
DCASTATE...................................................................137
DCHNO.............................................................................24
DIVERSITY....................................................................148
DL........................................................................................8
DMPSTATE.....................................................................89
DTXD................................................................................99
DTXFUL...........................................................................93
DTXU................................................................................99
E
ECSC .................................................................................18
EMERGPRL....................................................................137
EMLPP............................................................................142
ERBANDINCLUDED......................................................79
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
EVALTYPE.......................................................................53
EXTPEN......................................................................30, 70
F
FASTASSIGN..................................................................52
FASTMSREG.................................................................119
FDDQMIN......................................................................148
FDDQOFF ......................................................................148
FHOP...............................................................................101
FNOFFSET .......................................................................17
FPDCH..............................................................................88
G
GAMMA..........................................................................94
GPRS ................................................................................88
GPRSNWMODE..............................................................84
GPRSPRIO........................................................................85
GSYSTYPE.....................................................................129
GTDM ...............................................................................36
H
HCSBAND .....................................................................115
HCSBANDHYST...........................................................114
HCSBANDTHR.............................................................115
HIHYST ......................................................................30, 65
HNDBEFOREBANSW ...................................................51
HNDRELCHINTRA ........................................................48
HNDSDCCH.....................................................................48
HNDSDCCHINTI ............................................................51
HNDSDCCHINTO...........................................................50
HNDSDCCHTCH ............................................................49
HNDTCMDINTRA .........................................................49
HNDTGSOPINTRA ........................................................50
HOCLSACC ...................................................................128
HOP...................................................................22, 100, 103
HPBSTATE.....................................................................76
HSN...................................................................23, 100, 103
HYSTSEP....................................................................30, 66
I
IBHOASS .......................................................................108
IBHSICH...........................................................................72
ICMSTATE....................................................................123
IHO..................................................................................105
IHOSICH...........................................................................73
INAC...............................................................................140
INIDES ..............................................................................90
INILEN..............................................................................91
INTAVE..........................................................................124
K
KHYST........................................................................30, 62
KOFFSET ...................................................................30, 64
90/1553-HSC 103 12/2 Uen Rev PB2 2001-07-26
L
LATAUSED .....................................................................34
LAYER............................................................................116
LAYERHYST .................................................................118
LAYERTHR....................................................................117
LCOMPDL........................................................................97
LCOMPUL........................................................................91
LEVEL...............................................................................31
LEVHYST.........................................................................31
LEVTHR............................................................................31
LHYST ........................................................................30, 63
LIMIT1............................................................................124
LIMIT2............................................................................124
LIMIT3............................................................................124
LIMIT4............................................................................124
LISTTYPE.......................................................................122
LOFFSET ....................................................................30, 64
LOHYST .....................................................................30, 65
LOL..................................................................................112
LOLHYST.......................................................................113
LOWSSDL........................................................................67
LOWSSUL........................................................................67
LSSTATE.......................................................................126
M
MAIO..............................................................................104
MAXCHDATARATE....................................................79
MAXIHO........................................................................106
MAXRET .........................................................................43
MAXTA ...................................................................75, 120
MBCCHNO ....................................................................121
MBCR .............................................................................130
MC.....................................................................................83
MFDDQRFCN ...............................................................148
MFRMS............................................................................16
MISSNM ....................................................................30, 59
MNCDIGITHAND ..........................................................19
MODE.............................................................................129
MPWR............................................................................157
MRNIC............................................................................123
MSCRCODE...................................................................148
MSGDIST.........................................................................40
MSRXMIN.................................................................30, 60
MSRXSUFF ...............................................................30, 61
MSTXPWR................................................................20, 30
N
NCCPERM........................................................................39
NECI..................................................................................83
NEWNAME.....................................................................11
NHO ................................................................................115
NOALLOC......................................................................124
NOOFPHYSINFOMSG...................................................52
NUMREQBPC..................................................................23
175(183)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
O
OFFSET ......................................................................30, 66
ONDEMANDGPHDEV...................................................86
P
PAGLATA .......................................................................34
PAGNUMBERLA ............................................................32
PAGREP1LA ....................................................................31
PAGREPCT1LA ...............................................................35
PAGREPGLOB.................................................................31
PAGTIMEFRST1LA .......................................................32
PAGTIMEFRSTGLOB....................................................33
PAGTIMEREP1LA ..........................................................33
PAGTIMEREPGLOB.......................................................34
PAGTIMEREPLATA......................................................35
PCI...................................................................................144
PDCHALLOC...................................................................88
PHSTATE.......................................................................141
PILTIMER ........................................................................86
PMARG............................................................................91
PP.....................................................................................139
PRIORITY.......................................................................144
PRL..................................................................................140
PROBF ............................................................................141
PSCVL...............................................................................78
PSSBQ...............................................................................68
PSSHF...............................................................................72
PSSTA ..............................................................................69
PSSTEMP.................................................................31, 118
PT ......................................................................................47
PTIMBQ ...........................................................................69
PTIMHF............................................................................72
PTIMTA ...........................................................................69
PTIMTEMP..............................................................31, 118
PVI...................................................................................144
Q
QAI..................................................................................145
QCOMPDL.......................................................................97
QCOMPUL.......................................................................93
QDESDL...........................................................................97
QDESUL...........................................................................92
QEVALSD ........................................................................56
QEVALSI..........................................................................57
QLEN.................................................................................92
QLENDL...........................................................................98
QLENSD ...........................................................................58
QLENSI.............................................................................58
QLIMDL...........................................................................71
QLIMUL...........................................................................71
QOFFSETDL..................................................................107
QOFFSETUL..................................................................106
QSI...................................................................................149
176(183)
R
REGINT.............................................................................93
REGINTDL.......................................................................96
RELATION .....................................................................29
RHYST............................................................................128
RLINKT ............................................................................76
RLINKUP..........................................................................75
RSITE..................................................................................7
RXD.................................................................................157
S
SCHO ..........................................................................30, 73
SCLD...............................................................................111
SCLDLL ..........................................................................111
SCLDTIMEINT..............................................................111
SCLDUL..........................................................................112
SCTYPE............................................................................18
SDCCH..............................................................................24
SDCCHREG......................................................................95
SIMSG...............................................................................39
SLEVEL...........................................................................146
SMOASSIGN .................................................................136
SPEECHVERUSED..........................................................80
SPRIO..............................................................................149
SSDES ...............................................................................90
SSDESDL..........................................................................96
SSEVALSD.......................................................................56
SSEVALSI ........................................................................57
SSLEN...............................................................................90
SSLENDL..........................................................................97
SSLENSD..........................................................................57
SSLENSI ...........................................................................58
SSOFFSETDL................................................................108
SSOFFSETUL................................................................107
SSRAMPSD.....................................................................59
SSRAMPSI.......................................................................59
STATE..............................................................................22
STATSINT.....................................................................138
STIME.............................................................................146
SYNCSRC.......................................................................153
T
T3212.................................................................................45
TAAVELEN .....................................................................55
TALIM......................................................................68, 121
TALLOC...........................................................................54
TAOL..............................................................................113
TAOLHYST ...................................................................114
TBFDLLIMIT...................................................................87
TBFULLIMIT...................................................................87
TDD...................................................................................37
TEI...................................................................................155
TFMODE........................................................................152
TG....................................................................................151
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
THO.................................................................................114
TIHO ...............................................................................106
TIMER3105 ......................................................................53
TINIT ................................................................................54
TLDTH..............................................................................80
TMAXIHO.....................................................................105
TN......................................................................................26
TO......................................................................................47
TRHYST .....................................................................30, 63
TROFFSET .................................................................30, 65
TRXC ..............................................................................154
TSC....................................................................................19
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TURGEN...........................................................................55
TX......................................................................................43
TXID ...............................................................................156
U
UL........................................................................................8
UMFI...............................................................................147
X
XRANGE ........................................................................119
177(183)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6.3
Index to commands
M
MGADI.............................................................................37
MGEPC32, 33, 34, 36, 48, 49, 50, 51, 52, 132, 133, 134,
135, 136
MGEPP31, 32, 33, 34, 35, 36, 48, 49, 50, 51, 52, 132, 133,
134, 135, 136
MGETC...................................................142, 143, 144, 145
MGIDI...............................................................................36
MGIDP..............................................................................36
MGTEI ........................................................................77, 78
MGTEP .......................................................................77, 78
R
RAEPC19, 52, 53, 67, 68, 79, 80, 84, 85, 86, 87, 94, 111,
126, 129, 137, 141, 147
RAEPP19, 52, 53, 67, 68, 79, 80, 84, 85, 86, 87, 94, 111,
125, 126, 129, 137, 141, 147
RLACC............................................................................146
RLACE............................................................................145
RLACI.............................................................................145
RLACP....................................................................145, 146
RLBCC..................................................................96, 97, 98
RLBCE...............................................................................95
RLBCI................................................................................95
RLBCP.............................................................95, 96, 97, 98
RLBDC..............................................................................23
RLBDP ..............................................................................23
RLCCC............................................................22, 24, 26, 27
RLCDC........................................................................81, 83
RLCDP ........................................................................81, 83
RLCFE...............................................................................24
RLCFI................................................................................24
RLCFP...............................22, 23, 24, 26, 27, 100, 103, 104
RLCHC................................................22, 23, 100, 103, 104
RLCPC...........................................................................9, 20
RLCPP...........................................................................9, 20
RLCXC..............................................................................99
RLCXP ..............................................................................99
RLDCE............................................................................137
RLDCI .....................................................................137, 138
RLDCP ....................................................................137, 138
RLDEC..................................11, 12, 13, 14, 15, 16, 17, 119
RLDEI..................................................................11, 28, 130
RLDEP.....................11, 12, 13, 14, 15, 16, 17, 28, 119, 130
RLDGI ...............................................................................22
RLDRC..............................................................................82
178(183)
RLDRP ..............................................................................82
RLDSI................................................................................18
RLDTC..............................................................................19
RLDTP ..............................................................................19
RLGSC.........................................................................88, 94
RLGSE...............................................................................88
RLGSI................................................................................88
RLGSP.........................................................................88, 94
RLHBC............................................................114, 115, 116
RLHBP ............................................................114, 115, 116
RLHPC ..............................................................................82
RLHPP...............................................................................82
RLIHC .....................................................105, 106, 107, 108
RLIHP......................................................105, 106, 107, 108
RLIMC....................................................................124, 125
RLIME.............................................................................123
RLIMI......................................................................123, 124
RLIMP.............................................................123, 124, 125
RLLBC.............................53, 54, 55, 73, 108, 109, 114, 115
RLLBP.............................53, 54, 55, 73, 108, 109, 114, 115
RLLCC.....................................................................127, 128
RLLCE.............................................................................126
RLLCI..............................................................................126
RLLCP.............................................................126, 127, 128
RLLDC......................................................................75, 120
RLLDP.......................................................................75, 120
RLLFC.............................................................56, 57, 58, 59
RLLFP .............................................................56, 57, 58, 59
RLLHC............................................................117, 118, 119
RLLHP.......................................................28, 117, 118, 119
RLLLC.....................................................................111, 112
RLLLP .....................................................................111, 112
RLLOC........................................59, 60, 61, 62, 70, 73, 109
RLLOP.........................................59, 60, 61, 62, 70, 73, 109
RLLPC...................................................................68, 69, 72
RLLPP ...................................................................68, 69, 72
RLLSE.............................................................................126
RLLSI ..............................................................................126
RLLSP .............................................................................126
RLLUC..........................................................68, 71, 74, 121
RLLUP...........................................................68, 71, 74, 121
RLMFC ...........................................................121, 122, 123
RLMFP............................................................121, 122, 123
RLNRC..................................28, 29, 63, 64, 65, 66, 70, 110
RLNRE..............................................................................28
RLNRI .........................................................................28, 29
RLNRP ..................................28, 29, 63, 64, 65, 66, 70, 110
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RLOLC............................................................112, 113, 114
RLOLP.............................................................112, 113, 114
RLOMC...........................................................................129
RLOMP...........................................................................129
RLPBE...............................................................................76
RLPBI................................................................................76
RLPBP...............................................................................76
RLPCC.............................................................90, 91, 92, 93
RLPCE...............................................................................89
RLPCI................................................................................89
RLPCP.......................................................89, 90, 91, 92, 93
RLPPC.............................................................139, 140, 141
RLPPI ..............................................................................139
RLPPP .............................................................139, 140, 141
RLPRC.....................................................................138, 139
RLPRP.....................................................................138, 139
RLSBC...........................................18, 41, 42, 43, 45, 46, 47
RLSBP...........................................18, 41, 42, 43, 45, 46, 47
RLSCI..............................................................................138
RLSCP.............................................................................138
RLSMC.............................................................................40
RLSMP..............................................................................40
RLSSC.........................................37, 38, 39, 76, 83, 99, 130
90/1553-HSC 103 12/2 Uen Rev PB2 2001-07-26
RLSSP .........................................37, 38, 39, 76, 83, 99, 130
RLSTC...............................................................................22
RLSTP...............................................................................22
RLSUC ............................................................148, 149, 150
RLSUP.............................................................148, 149, 150
RLTYC ............................................................................129
RLTYI..............................................................................129
RLTYP.............................................................................129
RLUMC...........................................................................147
RLUMP...........................................................................147
RRLLC.................................................................................8
RRLLP.................................................................................8
RXAPI.............................................................................151
RXBLE............................................................................151
RXBLI .............................................................................151
RXESI..............................................................................151
RXMOC......7, 101, 102, 131, 151, 152, 153, 154, 155, 157
RXMOE..........................................................................151
RXMOI ...............7, 101, 131, 151, 152, 153, 154, 155, 157
RXMOP ..............7, 101, 102, 151, 152, 153, 154, 155, 157
RXMSC...............................................7, 102, 152, 153, 154
RXPLI..............................................................................151
RXTCI.............................................................................151
179(183)
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
6.4
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: CELL{(, ACSTATE)(, SLEVEL)(, STIME)};
RLACI: CELL;
RLACP: CELL;
RLBCC: CELL(, SCTYPE){(, SDCCHREG)(, SSDESDL)(, REGINTDL)(, SSLENDL)
(, LCOMPDL)(, QDESDL)(, QCOMPDL)(, QLENDL)
(, BSPWRMINP/BSPWRMINN)};
RLBCE: CELL;
RLBCI: CELL;
RLBCP: CELL;
RLBDC: CELL(, CHGR), NUMREQBPC;
RLBDP: CELL(, CHGR);
RLCCC: CELL{(, TN)(, CCHPOS )(, CHGR)(, SDCCH)(, CBCH)};
RLCDC: BSCMC
or RLCDC: CELL, MC;;
RLCDP: CELL;RLCFE:
CELL, DCHNO;
RLCFI: CELL(, CHGR)(,DCHNO);
RLCFP: CELL(, CHGR);
RLCHC: CELL(, CHGR), (HOP)(, HSN) (,MAIO);
RLCPC: CELL(, SCTYPE){(, MSTXPWR)(, BSPWRT)(, BSPWRB )};
RLCPP: CELL(,EXT);
RLCXC: CELL, DTXD;
RLCXP: CELL;
RLDCE;
RLDCI: EMERGPRL;
RLDCP;
RLDEC: CELL{(, CGI)(, BSIC )(, BCCHNO)(, NEWNAME)(, AGBLK)(, MFRMS )(, BCCHTYPE)
(, FNOFFSET)(, XRANGE)};
RLDEE: CELL;
RLDEI: CELL(, CSYSTYPE)(, EXT);
RLDEP: CELL;
or RLDEP:CELL=ALL(CSYSTYPE(, EXT));
or RLDEP:CELL=ALL, EXT;
or RLDEP:CELL=ALL, XRANGE;
RLDGC: CELL, CHGR, SCTYPE;
RLDGE: CELL, CHGR;
RLDGI: CELL, CHGR(, SCTYPE);
RLDGP: CELL;
RLDTC: CELL, SCTYPE, TSC;
RLDTP: CELL;
RLGSC: CELL (.FPDCH) (,GAMMA) (,PDCHALLOC);
RLGSE: CELL;
RLGSI: CELL;
RLGSP: CELL;
180(183)
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RLHBC:
RLHBP;
RLHPC:
RLHPP:
RLIHC:
RLIHP:
RLIMC:
RLIME:
RLIMI:
RLIMP:
RLLBC:
RLLBP
RLLCC:
RLLCE:
RLLCI:
RLLCP:
RLLDC:
RLLDP:
RLLFC:
RLLFP:
RLLHC:
RLLHP:
RLLLC:
RLLLP:
RLLOC:
(HCSBANDHYST) (,HCSBAND (,LAYER) (,HCSBANDTHR ))
CELL, CHAP;
CELL/CHAP;
CELL (, SCTYPE){(, IHO)(, MAXIHO)(, TMAXIHO)(, TIHO)
(, SSOFFSETULP/SSOFFSETULN)
(, SSOFFSETDLP /SSOFFSETDLN)
(, QOFFSETULP/QOFFSETULN)
(, QOFFSETDLP/QOFFSETDLN)};
CELL;
CELL{(, INTAVE)(, LIMIT1)(, LIMIT2)(, LIMIT3)(, LIMIT4)};
CELL;
CELL(, NOALLOC);
CELL;
(SYSTYPE){(, TAAVELEN)(, TINIT)(, TALLOC)(, TURGEN)(, EVALTYPE)
( THO)(, NHO)(, ASSOC)(, IBHOASS)(, IBHOSICH)(, IHOSICH)};
(:SYSTYPE);
CELL{(, CLSLEVEL)(, CLSACC)(, HOCLSACC)(, RHYST)(, CLSRAMP )};
CELL;
CELL;
CELL;
CELL{(, MAXTA)(, RLINKUP)};
CELL;
CELL{(, SSEVALSD)(, QEVALSD)(, SSEVALSI)(, QEVALSI)(, SSLENSD)
(, QLENSD)(, SSLENSI)(, QLENSI)(, SSRAMPSD)(, SSRAMPSI)};
CELL;
CELL{(, LAYER)(, LAYERTHR)(, LAYERHYST)(, PSSTEMP )(, PTIMTEMP)(,
FASTMSREG)};
CELL{(, LAYER)(, EXT)};
CELL{(, SCLD)(, SCLDLL)(, SCLDUL)};
CELL;
CELL (, SCTYPE){(, BSPWR)(, BSTXPWR)(, BSRXMIN)(, BSRXSUFF)
(, MSRXMIN)(, MSRXSUFF)(, SCHO )(, MISSNM)(, AW)(, EXTPEN)};
CELL(, EXT);
CELL{(, PTIMHF)(, PTIMBQ)(, PTIMTA)(, PSSHF)(, PSSBQ)(, PSSTA)};
CELL;
RLLOP:
RLLPC:
RLLPP:
RLLSE;
RLLSI;
RLLSP;
RLLUC: CELL(, SCTYPE){(, QLIMUL)(, QLIMDL)(, TALIM)(, CELLQ)};
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)};
or RLNRC:CELL, CELLR{(, CS )(, CAND)
(, HIHYST)(, LOHYST)
(, HYSTSEP )(, OFFSETP/OFFSETN)
(, AWOFFSET)(, BQOFFSET)};
RLNRE: CELL, CELLR;
RLNRI: CELL, CELLR(, SINGLE);
90/1553-HSC 103 12/2 Uen Rev PB2 2001-07-26
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RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
RLNRP: CELL(, CELLR)(, NODATA);
RLOLC: CELL{(, LOL)(, LOLHYST)(, TAOL)(, TAOLHYST)};
RLOLP: CELL;
RLOMC:
MODE;
RLOMP;
RLPCC: CELL (, SCTYPE){(, SSDES )(, SSLEN)(, LCOMPUL)(, INIDES )(, PMARG)
(, INILEN)(, QDESUL)(, QLEN)(, QCOMPUL)(, REGINT)
(, DTXFUL)};
RLPCE: CELL;
RLPCI: CELL;
RLPCP: CELL;
RLPPC: PP, PRL{(, INAC)(, PROBF)};
RLPPE: PP;
RLPPI: PP(, PP1);
RLPPP: PP;
RLPRC: CELL(, SCTYPE), CHTYPE, PP;
RLPRP: PP; or RLPRP:CELL(, CHTYPE);
RLSBC: 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 )};
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;
182(183)
90/1553-HSC 103 12/2 Uen Rev PB2 2001-07-26
RADIO NETWORK PARAMETERS & CELL DESIGN DATA FOR ERICSSON’S GSM SYSTEM
7
NEW / REMOVED / CHANGED
PARAMETERS IN ERICSSON’S GSM
SYSTEM R9/BSS R9.0
New Parameters
Removed Parameters
Changed Parameters
UMFI
FDDQMIN
FDDQOFF
SPRIO
QSI
90/1553-HSC 103 12/2 Uen Rev PB2 2001-07-26
183(183)