2G cell parameters
audit
Axis
2247 sites - 19 BSC
Common cell data
Element
AGBLK
MFRMS
Range
0 to 7 if
NCOMB
0 to 2 if
COMB
2 to 9
CONDITI
ON
Unit
Default
Value
Axis
Actual
Opt
Range
Remarks
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.
ALL
-
1
1
ALL
CCCH
6
2
Multiframes period. Defines period of transmission for PAGING REQUEST messages
to the same paging subgroup. (Please refer to table MFRMS)
AGBLK : 1 ; 8 CCCH blocks in each multi frames and possible to have 16 to 72 Paging Group
A high number of paging groups means that the mobiles have to wait for a longer time than the low
number case before the right paging block arrives. This increases the time for paging. It also
reduces the paging capacity compared to using fewer paging groups. This is because with a high
number of paging groups, each paging group will have a short paging queue in the BTS.
Idle mode behavior – cell data
Element
Rang
e
CONDITION
Unit
Erics
son
Defa
ult
GSM1800
MACRO
ACCMIN
47 to
110
INDOOR
CELL 1800
CRH
0 to
14 in
steps
of 2
Axis
Actual
102
dBm
110
AIRPORT
INDOOR
CELLS
FACING
LAC
BORDER
Remarks
110
6 to 12
dB
Propose 4 since Axis network is coverage limited
ALL OTHER
CELLS
6
MAXRET
TX
3 to
12,14,
16,
20,25,
32,50
TERRESTE
RIAL
TRANSMISS
ION
-
50
50
0 to
255
ALL CELLS
Deci
hours
40
20, 40
-
4
2, 4, 7
Maximum retransmissions. Defines maximum number of retransmissions an MS may do when accessing the
system on RACH.
Defines the number of timeslots over which the MS may spread transmission when accessing the system.
GSM1800
MACRO
0 to
63
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
6
TERRESTE
RIAL
TRANSMISS
ION
CRO
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 pos
95
1,2,4,
7
T3212
Opt
Range
0
0
GSM1800
MICRO
INDOOR
3, 6, 8,
10
Propose 20 since Axis network is coverage limited
T3212 time-out value. 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).
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. In order to optimise cell reselection, the additional cell
reselection parameters CRO, TO, a
Locating cell filter data
Ran
ge
Unit
Defa
ult
Axis
Actual
SSEVALSD
1 to
9
-
6
4, 6
QEVALSD
1 to
9
SSEVALSI
1 to
9
-
6
6
Signal strength filter type for signaling only.
The filters for down- and uplink signal strength in serving
cell and downlink signal strength from neighboring cells
are selected by SSEVALSI for the channel mode
signaling only. (6 is straight average fi
QEVALSI
1 to
9
-
6
6
Quality filter type for signaling only.
The filters for quality in down- and uplink in the serving
cell are selected by QEVALSI for the channel mode
signaling only. (6 is straight average filter)
SSLENSD
1 to
20
SACC
H
10
2 to 10
QLENSD
1 to
20
SACC
H
10
2 to 10
SSLENSI
1 to
20
SACC
H
4
4
QLENSI
1 to
20
SACC
H
4
4
SSRAMPSD
1 to
20
SACC
H
5
5
Ramping length of signal strength filter for speech/data. SSRAMPSD shall be specified only when SSEVALSD is in the range
6 to 9.
SSRAMPSI
1 to
20
SACC
H
2
1, 2
Ramping length of signal strength filter for signaling only. SSRAMPSI shall be specified only when SSEVALSI is in the range
6 to 9.
MISSNM
0 to
18
-
3
3
-
6
3, 4, 6
Opt
Range
Remarks
Element
Signal strength filter type for speech/data. The filters for down- and uplink signal strength in serving cell and downlink signal
strength from neighboring cells are selected by SSEVALSD for the channel mode
speech/data. (6 is straight average filter)
Quality filter type 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. (6 is straight average filter)
Length of signal strength filter for speech/data. SSLENSD shall be specified only when SSEVALSD is in the range 6 to 9.
Length of quality filter for speech/data. QLENSD shall be specified only when QEVALSD is in the range 6 to 9.
Length of signal strength filter for signaling only. SSLENSI shall be specified only when SSEVALSI is in the range 6 to 9.
Length of quality filter for signaling only. QLENSI shall be specified only when QEVALSI is in the range 6 to 9.
Maximum number of consecutive missing measurements for a serving cell or neighboring cell permitted before alln old
measurements are considered invalid.
Locating basic ranking cell data
Element
BSPWR
BSTXPWR
R
a
n
g
e
0
T
O
80
0
T
O
80
CONDITION
U
n
i
t
Remarks
Ericsson Default
GSM1800 MACRO
(RBS2202/2106/2206/210
7/2207)
47
GSM1800 MACRO WITH
TCC
(RBS2202/2106/2206/210
7/2207)
51
GSM1800 MACRO WITH
SPB
(RBS2202/2106/2206/210
7/2207)
STREETCELL
(RBS2302/2306/2308)
BTS Output power (ERP) on BCCH frequency. BSPWR is defined at the
reference point used in the locating algorithm.
NOTE: trial for path loss locating consideration
53
49
47
STREETCELL (RBS2309)
45
INDOOR CELL (RBS2309)
33
INDOOR . MICROCELL
OUTDOOR USING FULL
BTS
33
GSM1800 MACRO
(related to RBS Type )
45
INDOOR CELL (Related to
RBS Type ))
Opt Range
45
d
B
m
INDOOR CELL
(RBS2302/2306/2308)
Micro Cell
Axis Actual
d
B
m
33
33
*Base Station Power correction
BTS Output power (ERP) on all non - BCCH frequency (overlay).
BSTXPWR is defined at the reference point used in the locating algorithm.
Indoor value valid for Micro RBS only.
53
Locating basic ranking cell data
Remarks
Element
Ran
ge
CONDIT
ION
MSRXMIN
0 to
150
ALL
CELLS
BSRXMIN
0 to
150
ALL
CELLS
MSRXSUFF
0 to
150
ALL
CELLS
BSRXSUFF
0 to
150
ALL
CELLS
Unit
dBm
dBm
dBm
dBm
Ericsson
Default
100
150
0
150
Axis
Actual
94 to 100
98 to 104
0
150
Opt range
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.
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.
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.
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
Locating Urgency cell data
Element
TALIM
Range
CONDITIO
N
Unit
0 to 63
ALL
CELLS
SAC
CH
Default
62
Axis
Actual
5, 45, 62
Opt
Range
Remarks
Timing advance limit for handover. Urgency detection
parameter.
Dragon site (height>70m) in CBD area
dB
10
10
Signal strength penalty when handover due to bad quality.
This penalty is valid during PTIMBQ. (Urgency is triggered by setting at QLIMUL/QLIMDL). Note
In order to minimise the risk of immediate handback, PSSBQ should be greater than (BQOFFSET
- hysteresi
Signal strength penalty when handover due to too large
timing advance. This penalty is valid during PTIMTA.
PSSBQ
0 to 63
ALL
CELLS
PSSTA
0 to 63
ALL
CELLS
dB
63
63
PTIMBQ
0 to 600
ALL
CELLS
Seco
nds
10
10
PTIMTA
0 to 600
ALL
CELLS
Seco
nds
10
10
Penalty time when handover due to too large timing
advance.
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
Penalty time when handover due to bad quality.
PSSHF
0 to 63
ALL
CELLS
dB
63
63
PTIMHF
0 to 600
ALL
CELLS
Seco
nds
10
10
QLIMDL
0 to 100
GSM1800
dtqu
55
50
Quality limit downlink for handover. Urgency detection
parameter.
QLIMUL
0 to 100
GSM1800
dtqu
55
50
Quality limit uplink for handover. Urgency detection
parameter.
QLIMULAFR
0 to 100
GSM1800
dtqu
55
55
QLIMDLAFR
0 to 100
GSM1800
dtqu
55
55
Penalty time at handover failure.
Uplink quality threshold for bad quality urgency handovers for AMR FR connections.
Downlink quality threshold for bad quality urgency handovers for AMR FR connections.
Locating MISC cell data
Remarks
Range
CONDITIO
N
Unit
Defau
lt
Axis
Actual
CELLQ
HIGH, LOW
ALL CELLS
-
HIGH
HIGH
MAXTA
0 to 63
(normal cell).
0 to 219 (ext
range cell).
ALL CELLS
Bit
period
s (bp)
1 to 63
ALL CELLS
EXCEPT
INDOOR
SACC
H
16
24
Radio link time-out. The maximum value of the radio link counter for the uplink. 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
8 to 64 in
steps of 4
ALL CELLS
EXCEPT
INDOOR
SACC
H
16
24
Radio Link time-out. The maximum value of the radio downlink counter. 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
RLINKUPAF
R
1 to 63
ALL CELLS
EXCEPT
INDOOR
SACC
H
16
28
Radio link time-out. The maximum value of the radio link counter on the uplink for AMR FR
connections. A counter that is given the value RLINKUPAFR is started in the BSC after the
assignment of a dedicated channel. Two units increase the counter if the SA
RLINKTAFR
8 to 64 in
steps of 4
ALL CELLS
EXCEPT
INDOOR
SACC
H
16
30
Radio Link time-out. The maximum value of the radio downlink counter for AMR FR
connections. A counter that is given the value RLINKTAFR is started in the MS after the
assignment of a dedicated channel. Two units increase the counter if the SACCH data is
RLIKUPAHR
1 to 63
ALL CELLS
EXCEPT
INDOOR
SACC
H
28
Radio link time-out. The maximum value of the radio link counter on the uplink for AMR HR
connections. A counter that is given the value RLINKUPAHR is started in the BSC after the
assignment of a dedicated channel. Two units increase the counter if the SA
RLINKTAHR
8 to 64 in
steps of 4
ALL CELLS
EXCEPT
INDOOR
SACC
H
30
Radio Link time-out. The maximum value of the radio downlink counter for AMR HR
connections. A counter that is given the value RLINKTAHR is started in the MS after the
assignment of a dedicated channel. Two units increase the counter if the SACCH data is
Element
RLINKUP
RLINKT
63
16
16
63
Opt
Range
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 qu
Maximum timing advance before an MS is considered lost. Note MAXTA should always be
greater than the parameter TALIM (see TALIM-1). MAXTA is a hard limit compared to TALIM,
which is a soft limit.
Channel administration
Remarks
CONDITI
ON
U
n
i
t
Default
Axis
Actual
96,
144
ALL
CELLS
-
144
144
CHAP
0 to 8
ALL
CELLS
-
1
1
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
NECI
0 and
1
ALL
CELLS
-
0
1
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).
MC
ON,
OFF
ALL
CELLS
-
OFF
OFF
Multiple Channel switch.
MC identifies if more than one full rate TCH are allowed to be allocated for each MS connection in
the cell.
CSPSN
OPRF
CSPSNOP
RF
This parameter determines if non-hopping TCHs on the BCCH frequency should be selected first,
last or if there is no preference at CS and PS allocation. The sellection is as follows:
1. CSPSNOPRF
- No selectio
PSPRIO
PSPRIO
Element
CMDR
Range
CSPSALLOC
See
Remar
ks
ALL
CELLS
-
CSPSPRIO
CSPRI
O/PSP
RIO
ALL
CELLS
-
Opt
Range
Maximum channel data rate. It is used to set the maximum channel data rate in the cell. The
lowest value of CMDR and MAXCHDATARATE will be the actual channel rate in the cell. The
channel data rates are 9.6kb/s(96) and 14.4kb/s(144).
This parameter determines if the CS selection preference for non-hopping TCHs on the BCCH
frequency has higher or lower priority than the criterion to avoid TCH groups with PS priority.
Gprs/edge channel administration
Element
Range
Ericsson
Default
Axis Actual
0
0, 1
CSPSNOP
RF
CSPSNOPRF
PSPRIO
PSPRIO
0 to 8
FPDCH
CSPSALLOC
See
Remarks
CSPSPRIO
CSPRIO/
PSPRIO
Opt Range
Remarks
FPDCH is used to dedicate a number of traffic channels in the cell for GPRS/EGPRS only. The
dedicated PDCH can not be pre-empted by circuit switched traffic. When a master PDCH is wanted in
the cell, i.e. when configured for GPRSNWMODE 1 or 3 (see GPRSNWM
This parameter determines if non-hopping TCHs on the BCCH frequency should be selected first, last
or if there is no preference at CS and PS allocation. The selection is as follows:
1. CSPSNOPRF
- No selection
This parameter determines if the CS selection preference for non-hopping TCHs on the BCCH
frequency has higher or lower priority than the criterion to avoid TCH groups with PS priority.
PDCHPREEMPT
0 TO 8
0
0
This parameter determines if non-hopping TCHs on the BCCH frequency should be selected first, last
or if there is no preference at CS and PS allocation. The sellection is as follows:
1. 0 - No PDCHs protected
2. 1 - PDC
PRIMPLIM
1 TO 8
8
8
PRIMPLIM defines the maximum number of dedicated and semi-dedicated PDCHs allowed in the
primary PSET.
ENABLE
D,
DISABLE
D
ENABLED
ENABLED
SPDCH
0 TO 16
0
0, 1
GPRSPRIO
0 TO 15
0
0
PSKONBCCH
PSKONBCCH is used to disable the use of 8PSK on the BCCH carrier.
Optional preference parameter for the number of semi-dedicated PDCHs
This parameter controls whether pre-emptable ODPDCHs will be treated as idle or busy for dynamic
HR allocation and TCH packing functions (i.e. HR packing and DYMA), Cell Load Sharing, Subcell
Load Distribution, Hierarchical Cell Structure (HCS) and GSM-UM
Gprs/edge channel administration
Element
TN7BCCH
Range
EGPRS,
GPRS
U
ni
t
Default
Axis
Actual
CHGR0
-
GPRS
EGPRS
ON
2
ON
-
CHGR0
NUMREQCS3C
S4BPC
Remarks
CONDITIO
N
0 to 128
Opt Range
Indicates if Timeslot Number 7 on the BCCH frequency can be configured with
TCHs supporting EGPRS and GPRS, or GPRS only.
Note: if EDGE is activated, set to EGPRS
GPRS
CHGR1
The wanted number of BPCs in a channel group to be G-TCH. (GPRS)
CHGR0
NUMREQEGPR
SBPC
0 to 128
ON
1, 2, 3, 4
ON
-
CHGR1
The wanted number of BPCs in a channel group to be E-TCH. (EDGE)
ODPDCHLIMIT
0 TO 100%
CHGR0
AND
CHGR1
%
100
100
This parameter limits the total number of on-demand PDCHs in the channel group.
The parameter indicates a percentage value of number of deblocked FR TCHs in
the channel group that can be allocated as on-demand PDCHs. Note: The
number of TCHs that can be
TN7BCCH: GPRS –8-PSK (EDGE) would transmit at lower power than GMSK (back off
around 3dB), thus would reduced BCCH power .
Ms power control
Element
Range
U
n
it
Ericsson
Default
Axis
Actual
Dynamic MS power control state.
DMPSTATE:
ACTIVE,
INACTIV
E
ACTIVE
ACTIVE
AMRPCSTATE:
ACTIVE,
INACTIV
E
ACTIVE
ACTIVE
SSDESUL
47 to 110
d
B
m
92
90, 92
SSDESULAFR
47 to 110
d
B
m
92
90, 92
0-76
d
t
q
u
20
30, 40
QDESULAFR
0-76
d
t
q
u
40
30, 40
LCOMPUL
0-100
%
6
5
QCOMPUL
0-100
%
55
55, 60
47 to 110
d
B
m
92
90, 92
0-76
d
t
q
u
QDESUL
Remarks
Opt Range
Dynamic MS power control state for AMR
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.
For AMR FR connections defines the target value for the desired signal strength uplink as measured by the
BTS in different parts of the power control interval.
Desired quality, uplink.
Desired quality, uplink for AMR FR connections.
Path loss compensator factor, uplink. When set to zero, no power control towards SSDES is performed.
Quality deviation compensation factor, uplink. When set to zero, no quality compensation is performed.
SSDESULAHR
QDESULAHR
40
30, 40
Defines the target value for AMR HR connections for the desired signal strength uplink as measured by the
BTS in different parts of the power control interval. SSDESULAHR takes a positive value that represents the
corresponding negative value in calculat
Defines the target value for AMR HR connections for the desired signal strength uplink as measured by the
BTS in different parts of the power control interval. SSDESULAHR takes a positive value that represents the
corresponding negative value in calculat
BTS power control
Element
Range
U
n
it
DBPSTATE
ACTIVE
/INACTI
VE
-
AMRPCSTATE:
ACTIVE
,
INACTI
VE
Remarks
Default
Axis
Actual
INACTI
VE
ACTIVE
Opt
Range
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.
Dynamic MS power control state for AMR
INACTI
VE
ACTIVE
SDCCHREG
ON,
OFF
-
OFF
OFF
SDCCH power control switch. Identifies if power control
on SDCCH is allowed on non-BCCH frequencies.
SSDESDL
47 to
110
d
B
m
90
90, 92
Defines the target value for the desired signal strength
downlink as measured by the MS in different parts of the
power control interval.
SSDESDLAFR
47 to
110
d
B
m
90
90, 92
For AMR FR connections defines the target value for the desired signal strength downlink as measured by the MS in
different parts of the power control interval.
LCOMPDL
0 to 100
%
5
5
QDESDL
0 to 76
dt
q
u
30
30, 40
QDESDLAFR
0 to 76
dt
q
u
40
30, 40
Desired quality, downlink for AMR FR connections.
QCOMPDL
0 to 60
%
55
55, 60
Quality deviation compensation factor, downlink. When
set to zero, no quality compensation is performed.
SSDESDLAHR
47 to
110
d
B
m
90
90, 92
Defines the target value for AMR HR connections for the desired signal strength downlink as measured by the MS in
different parts of the power control interval. SSDESDLAHR takes a positive value that represents the corresponding
negative value in calculat
QDESDLAHR
0 to 76
dt
q
u
30
30, 40
Path loss compensator factor, downlink. When set to zero
there is no power control towards SSDESDL.
Desired quality, downlink.
Desired quality downlink for AMR HR connections.
DTX cell data
Element
Rang
e
DTXD
ON,
OFF
DTXU
0 to 2
CONDITIO
N
ALL CELLS
ALL CELLS
U
nit
-
-
Remarks
Ericsson Default
ON
1
Axis Actual
ON
1
Discontinuous Transmission Downlink. With downlink DTX ON the transmitter in the BTS is switched
off during pauses in speech or data transmission. The DTXD parameter is defined on a per cell
basis and the function affects all TCHs allocated on the non BCC
Uplink DTX indicator.
0 The MSs may use uplink discontinuous transmission.
1 The MSs shall use uplink discontinuous transmission.
2 The MSs must not use uplink discontinuous transmission.
Hcs cell data
Element
Range
LAYER
1 to 8
LAYERTHR
0 to
150
CONDITION
U
n
it
Default
Axis
Actual
GSM1800 MACRO
-
NA
6
GSM1800 INDOOR
-
NA
2, 3
GSM1800 MACRO
d
B
m
NA
110
GSM1800 INDOOR
GSM1800 MACRO
LAYERHYST
0 to 63
GSM1800 INDOOR
GSM1800 MACRO
PSSTEMP
0 to 63
GSM1800 INDOOR
PTIMTEMP
0 to
600
Remarks
Cell layer.
LAYER defines which cell layers belong to the specified HCSBAND. Layer 1 has the highest
priority.
The signal strength threshold is used for ranking of cells in different layers within each
HCSBAND. Note: Each in building cell should have its respective layerthr tuned by IBS
engineer for optimum performance, with 75 acts as the initial value.
75,87
d
B
m
NA
3
d
B
m
NA
0 to 30
S
NA
0 to 30
Layer hysteresis. The signal strength hysteresis is used for ranking cells in different layers
within each HCSBAND.
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 lay
Penalty duration. PTIMTEMP specifies the duration during which PSSTEMP is valid.
GSM1800 MACRO
GSM1800 INDOOR
FASTMSREG
ON,
OFF
ALL CELLS
-
OFF
OFF
HCSIN
0 to
100
ALL CELLS
S
NA
0
HCSOUT
0 to
100
ALL CELLS
S
NA
100
Handling of fast-moving mobiles switch.
HCS traffic distribution level threshold to allow HCS handover into a cell. HCS handover into
an internal neighbour cell is allowed when the channel availability of the neighbour cell is
above or equal to its HCSIN threshold. When the default value for HC
HCS traffic distribution level threshold to allow HCS handover out from a cell. HCS handover
out from the serving cell is allowed when the channel availability of the serving cell is below or
equal to its HCSOUT threshold. When the default value for HCSOU
Cell load sharing
Remarks
Element
Range
CONDITION
U
nit
Ericsso
n
Default
Axis Actual
CLSSTATE
ACTIV
E,
INACT
IVE.
ALL CELLS
-
ACTIVE
ACTIVE
1 TRU (6 TCH)
40
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. Note: * - this setting is for macro and street cells only. No
CLS is activated at indoor cell. Not acti
20
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.
2 TRU (14 TCH)
CLSACC*
1 to
100
Cell load sharing active/inactive for an individual cell. For CLSSTATE activation to have effect, LSSTATE
must be activated.
3 TRU (21 TCH)
%
40
4 TRU (29 TCH)
5 TRU (36 TCH)
6 TRU (44 TCH)
1 TRU (6 TCH)
2 TRU (14 TCH)
3 TRU (21 TCH)
CLSLEVEL*
0 to 99
%
20
4 TRU (29 TCH)
5 TRU (36 TCH)
6 TRU (44 TCH)
0 to 30
ALL CELLS
Se
co
nd
s
8
5, 8
HOCLSACC
ON,
OFF
ALL CELLS
-
OFF
OFF
RHYST
0 to
100
ALL CELLS
%
75
75, 100
CLSRAMP
Cell load sharing ramping time parameter. The interval during which the value of RHYST is ramped up from
zero to the final value.
Handover due to Cell load sharing accepted to this cell.
Hysteresis reduction parameter. Determines how much the
hysteresis values can be reduced in the Cell load sharing
evaluation.
Adaptive configuration
Remarks
Element
ACSTATE
SLEVEL
STIME
Range
CONDITION
Unit
Ericsson
Default
ON,
OFF
ALL CELLS
-
ON
0 to 2,
CONG.
15 to
360
ALL CELLS
ALL CELLS
-
Seconds
1
20
Axis Actual
ON
Adaptive Configuration State. Activation state of the Adaptive Configuration of Logical
Channels function in the cell.
0 to 2
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. If CONG is set, The attempt to
increase the number of SDCCH/8 will take place when allocation of an S
20, 40
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 e
Adaptive configuration
Remarks
Range
CONDITIO
N
U
nit
Ericsso
n
Default
Axis Actual
DMQB
ON,
OFF
ALL CELLS
-
OFF
ON
Defines if the Dynamic Half Rate (HR) to Full Rate (FR) Mode Adaptation due to bad quality is active (ON)
or inactive (OFF).
DMQBAMR
0 to
100
ALL CELLS
-
-
50
Channel quality threshold for Adaptive Multi Rate (AMR) capable mobiles using a HR traffic channel. It
determines when a change from HR to FR is initiated for Dual Rate mobiles capable of AMR.
DMQBNAMR
0 to
100
ALL CELLS
-
-
45
Channel quality threshold for mobiles not capable of AMR using a HR traffic channel. It determines when a
change from HR to FR is initiated for Dual Rate mobiles not capable of AMR.
DMQG
ON,
OFF
ALL CELLS
-
OFF
ON
Defines the if the Dynamic Full Rate (FR) to Half Rate (FR) Mode Adaptation quality evaluation is active
(ON) or inactive (OFF).
DMQGAMR
0 to
100
ALL CELLS
-
-
40
Channel quality threshold for Adaptive Multi Rate (AMR) capable mobiles using a FR traffic channel. It
determines when a change from FR to HR is allowed for Dual Rate mobiles capable of AMR.
DMQGNAMR
0 to
100
ALL CELLS
-
-
30
Channel quality threshold for mobiles not capable of AMR using a FR traffic channel. It determines when a
change from FR to HR is allowed for Dual Rate mobiles not capable of AMR..
DMTHAMR
0 to
100
ALL CELLS
%
-
20
DMTHNAMR
0 to
100
ALL CELLS
%
-
10
DTHAMR
0 to
100
ALL CELLS
%
-
50 & 90
Indicates the ratio between idle and de-blocked TCHs in the cell. Below this threshold an AMR MSs will be
allocated on HR channels.
DTHNAMR
0 to
100
ALL CELLS
%
-
50 & 90
Indicates the ratio between idle and de-blocked TCHs in the cell. Below this threshold a non-AMR but DR
capable MS will be allocated on HR channels.
DMSUPP
ON,
OFF
ALL CELLS
-
OFF
ON
DHA
ON,
OFF
ALL CELLS
-
OFF
ON
Element
DMTHAMR is the HR packing threshold parameter for AMR HR capable MSs. When below this value a HR
packing or dynamic mode adaptation from FR to HR is initiated. The parameter expresses the ratio
between idle and de-blocked TCHs in percent and is set per ce
DMTHNAMR is the HR packing threshold parameter for non AMR but DR capable MSs. When below this
value a HR packing or dynamic mode adaptation from FR to HR is initiated. The parameter expresses the
ratio between idle and de-blocked TCHs in percent and is s
Controls the activation of Dynamic FR/HR Mode Adaptation (DYMA).
Controls the activation of FR/HR Allocation.
Gprs/edge link adaptation
Element
LA
CHCSDL
Range
CONDITION
ON, OFF.
ALL CELLS
NA, CS-1, CS-2,
CS-3, CS-4.
ALL CELLS
U
n
i
t
Remarks
Default
Axis Actual
ON
ON
CS-2
CS-2
Activates and deactivates the feature GPRS Link Adaptation.
Coding Scheme for the downlink. Parameter CHCSDL defines the initial CS that will be
used for the downlink. If set to NA, the parameter CHCODING will be used instead.If GPRS
Link Adaptation is not active, the selected initial CS will work as static.If GPR
locating
Element
Range
CONDITI
ON
AWOFFSET
0 to 63
ALL
CELLS
U
ni
t
Remarks
Default
Axis Actual
3
3&5
GSM1800
(MACRO)
BQOFFSET
BQOFFSETAFR
0 to 63
0 to 63
MICROC
ELL
STREET
CELL
3
d
B
3
3
3
GSM1800
(MACRO)
3
INDOOR
d
B
Signal strength region for bad quality urgency handovers.
Note: BQOFFSET is defined as a cell to cell relation and
is a symmetrical parameter.
INDOOR
MICROC
ELL
STREET
CELL
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
3
3
Signal strength region for bad quality urgency handovers for AMR FR connections. Note
BQOFFSETAFR is defined as a cell-to-cell relation and is a symmetrical parameter.
Locating (ericsson3)
Element
Range
CONDITION
U
n
i
t
Erics
son
Defau
lt
GSM1800
(MACRO)
HIHYST
LOHYST
0 - 63
0 - 63
MICROCELL
STREETCELL
Remarks
Axis Actual
3, 5
d
B
5
5
INDOOR
5
GSM1800
(MACRO)
3
MICROCELL
STREETCELL
d
B
3
INDOOR
0 - 150
MICROCELL
STREETCELL
Signal strength hysteresis when evaluating low signal strength cells.
Note: LOHYST is only valid for the Ericsson3 locating algorithm.
3
3
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.
GSM1800
(MACRO)
HYSTSEP
Signal strength hysteresis when evaluating high signal strength cells.
Note: HIHYST is only valid for the Ericsson3 locating algorithm.
d
B
90
90
INDOOR
GSM1800
(MACRO)
OFFSET
-63 TO 63
MICROCELL
STREETCELL
INDOOR
0
d
B
0
0
0
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.
BSC property
BSC PROPERTY
Range
CONDITI
ON
Unit
Default
Axis
Actual
Remarks
LOWSSDL-102
47 to 110
BSC
dBm
104
102
Low signal strength limit for urgency condition, downlink.
LOWSSUL-104
47 to 110
BSC
dBm
104
104
Low signal strength limit for urgency condition, uplink.
BADQDL-55
0 to 100
BSC
dtqu
55
55
Bad quality limit for urgency condition, downlink
BADQUL-55
0 to 100
BSC
dtqu
55
55
Bad quality limit for urgency condition, uplink
2
It indicates if AMR full rate support is switched. It indicates
if AMR full rate support is switched on and which codec set
is active in the BSC
AMRFRSUPPORT-2
0 to 5
BSC
0
AMRHRSUPPORT-2
0 to 4
BSC
0
2
It indicates if AMR half rate support is switched. It indicates
if AMR half rate support is switched on and which codec set
is active in the BSC
LQCACT-3
0 to 3
BSC
0
3
Controls the feature Link Quality Control in Enhanced GPRS.
1
Controls the aggressiveness of the LQC algorithm in the
uplink, for acknowledge mode TBFs if EGPRSIRUL is set to
1. Otherwise LA mode is always used.
LQCMODEDL-1
0 to 2
BSC
0
codec mode
codec mode
codec mode
codec mode
1
2
3
4
codec mode
codec mode
codec mode
codec mode
1
2
3
4
codec mode
codec mode
codec mode
codec mode
1
2
3
4
codec mode 1
codec mode 2
codec mode 3
Full rate codec set 1
codec rate (kbps) Threshhold (0.5 dB) Hysteresis(0.5 dB)
4.75
12 (6 dB)
2 (1 dB)
5.9
21 (10.5 dB)
3 (1.5 dB)
6.7
21 (10.5 dB)
3 (1.5 dB)
10.2
Full rate codec set 2
codec rate (kbps)
Threshhold
Hysteresis
4.75
12 (6 dB)
2 (1 dB)
5.9
17 (8.5 dB)
3 (1.5 dB)
7.95
21 (12.5 dB)
3 (1.5 dB)
12.2
Half rate codec set 1
codec rate (kbps) Threshhold (0.5 dB) Hysteresis(0.5 dB)
4.75
23 (11.5 dB)
3 (1.5 dB)
5.9
28 (14 dB)
4 (2 dB)
6.7
32 (16 dB)
4 (2 dB)
7.4
Half rate codec set 2
codec rate (kbps)
Threshhold
Hysteresis
4.75
23 (11.5 dB)
3 (1.5 dB)
5.9
31 (15.5 dB)
4 (2 dB)
7.4