CELL LOAD SHARING
|
||||
Parameter
|
Description
|
Range
|
Ericsson Default Value
|
Remarks
|
CLSSTATE
|
Cell load sharing active/inactive for
an individual cell
|
ACTIVE, INACTIVE
|
INACTIVE
|
For CLSSTATE activation to have
effect, CLSSTATE must be activated
|
CLSACC
|
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
|
1 to 100 %
|
40%
|
-
|
CLSLEVEL
|
Percentage of available full rate
capable traffic channels at which or below which Cell load sharing
evaluations are initiated.
|
0 to 99 %
|
20%
|
The value of of CLSLEVEL must be less
than the value of CLSACC
|
HOCLSACC
|
Handover due to cell load sharing
accepted to this cell
|
ON, OFF
|
OFF
|
-
|
RHYST
|
Hysteresis reduction parameter -
determines how much hysteresis can be reduced in the cell load sharing
evaluation
|
0 to 100 %
|
75%
|
-
|
CLSRAMP
|
Cell load sharing ramping time
parameter.
|
0 to 30 seconds
|
5 seconds
|
The interval during which value of
RHYST is ramped up from zero to the final value.
|
GSM CELL LOAD SHARING Parameter
GSM Overlaid Subcell Locating data
Overlaid Subcell Locating data
|
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Parameter
|
Description
|
Range
|
Ericsson Dafault Value
|
Remarks
|
LOL
|
Pathloss threshold.
|
0 to 200
|
|
Pathloss threshold.
It defines the OL subcell coverage border in terms of the pathloss from the
serving cell.
|
LOLHYST
|
0 to 63
|
|
Hysteresis for the
pathloss criterion during evaluations for the OL subcell coverage.
|
|
DTCB:
|
|
-63 to 63
|
-63
|
Distance to cell
border threshold. It defines the OL subcell coverage border in terms of the
signal strength difference between the active channel and the strongest
neighbouring BCCHs.
|
DTCBHYST
|
|
0 to 63
|
|
Hysteresis for the
DTCB criterion during evaluations for the OL subcell coverage.
|
NDIST
|
|
0 to 63
|
|
Distance to cell
border additional threshold.
|
NNCELLS
|
|
1 to 5
|
|
Number of strongest
neighbouring BCCHs for the DTCB criterion. See the comments for NDIST.
|
TAOL
|
|
0 to 61 Bit periods (bp)
|
|
Timing advance
threshold. It defines the OL subcell timing advance border
|
TAOLHYST
|
|
0 to 61 Bit periods (bp)
|
|
Hysteresis for the
timing advance criterion during evaluations for the OL subcell coverage.
|
GSM Intra cell handover Parameter
Intra cell handover
|
||||
Parameter
|
Description
|
Range
|
Ericsson Dafault Value
|
Remarks
|
IHO
|
Intra handover switch: ON - Intra
cell handover is allowed; OFF - Intra cell is not allowed
|
ON, OFF
|
OFF
|
-
|
TMAXIHO
|
Timer for handover counter
|
0 to 60 seconds
|
6
|
-
|
TIHO
|
Intra cell handover inhibition timer
|
0 to 60 seconds
|
10
|
-
|
MAXIHO
|
Maximum number of consecutive
intra-cell handovers
|
0 to 15
|
3
|
-
|
QOFFSETUL
|
Offset for quality uplink
|
-50 to +50 dtqu
|
0
|
-
|
QOFFSETDL
|
Offset for quality downlink
|
-50 to +50 dtqu
|
0
|
-
|
SSOFFSETUL
|
Offset for signal strength uplink
|
-30 to +30 db
|
0
|
-
|
SSOFFSETDL
|
Offset for signal strength downlink
|
-30 to +30 db
|
0
|
-
|
GSM Locating urgency cell Parameter
Urgency Conditions for Handover
[Locating Algorithm]
|
||||
Parameter
|
Description
|
Range
|
Ericsson Dafault Value
|
Remarks
|
TALIM
|
Timing advance limit for handover -
Urgency detection parameter
|
0 to 63 (normal cell) Bits periods
(bp)
|
62
|
TALIM determines the maximum timing
advance that the MS is recommended to use in the cell
|
PSSBQ
|
Signal strength penalty when handover
due to bad quality. This penalty is
valid during PTIMBQ
|
0 to 63 db
|
10 dB
|
-
|
PSSTA
|
Signal strength penalty when handover
doe to too large timing advance. It is valid during PTIMTA
|
0 to 63 db
|
63
|
-
|
PTIMBQ
|
Penalty time when handover due to bad
quality
|
0 to 600 seconds
|
10
|
-
|
PTIMTA
|
Penalty time when handover due to too
large timing advance
|
0 to 600 seconds
|
10
|
-
|
QLIMDL
|
Quality limit downlink for handover.
Urgency detection parameter
|
0 to 100 dtqu
|
55
|
Deci transformed GSM quality units
(dtqu).
|
QLIMUL
|
Quality limit uplink for handover.
Urgency detection parameter
|
0 to 100 dtqu
|
55
|
Deci transformed GSM quality units
(dtqu).
|
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