Ericsson Parameters Summary

Parameter Description Range Remarks

BSPWRB Base Station output power 0 -> 63 dbm 45 45 dBm Note that RBS2301 and 2302 only can supports till 33dbm

BSPWRT 0 -> 63 dbm 45 Note that RBS2301 and 2302 only can supports till 33dbm

CGI

MCC - Mobile Country Code MCC : 3 digits -

MNC - Mobile Network Code -

LAC - Location Area Code LAC: 1 to 65535 -

CI - Cell Identity CI : 0 to 65535 -

BSIC

NCC - Network Coloue Code NCC: 0 to 7 - In Singtel GSM900, we are only allow to use 1, 4 and 6 for NCC

BCC - Base station colour code BCC: 0 to 7 - 0 to 7 BSIC = NCC BCC eg NCC=4 , BSIC will ranges from 40 to 47

BCCHNO Absolute RF channel number for BCCH 1 to 124( GSM900) - - Bcch - Broadcast Control Channel

512 to 885 (GSM1800) - -

BCCHTYPE Type of BCCH

COMB, COMBC, NCOMB NCOMB NCOMB The BCCH is always allocated to time slot number 0 in the defined ARFCN

ARFCN - Absolute Radio Frequency Channel Number

CBCH - is used for transmission of messages when the function

Short Messages Service Cell Broadcast (SMSCB) is activate in the cell

CBCH - Cell Broadcast Channel

AGBLK Number of reserved access granted blocks 1 1 AGBLK

MFRMS 2 to 9 CCCH multiframes 6 5 CCCH

same paging subgroups

FNOFFSET 0 to 1325 TDMA Frames 0 0 TDMA Frame

ECSC No - Early sending is not allowed Yes YES The parameter ECSC has to be set to YES in order to allow the MS to send the

early classmark Sending. Yes - Early sending is allowed MS mutliband and/or multislot capability.

Ericsson Dafault Value

SingTel Recommended

Value

GSM 900: 31 to 47dbm In odd values onlyGSM 1800: 33 to 45dbm In odd values only

Base Station output power for the non-BCCH RF channel numbers

GSM 900: 31 to 47dbm In odd values only

GSM 1800: 33 to 45dbm In odd values only

Cell Global Identity (conisists of MCC-MNC-LAC-CI)

Parameter is only allowed to be change in cell state HALTED

MNC : 2 or 3 digits depending Mncdigithand)

Base Station Identity Code (consists of NCC-BCC)

1) COMB - indicates that the cell has a combined BCCH and SDCCH/42) COMBC - indicates that the cell has a combined BCCH and SDCCH/4 with CBCH subchannel

3) NCOMB - indicates that the cell does not have any type of combines BCCH and SDCCH/4

Parameter is only allowed to be change in cell state HALTED

0 to 7 if non-combined Bcch is used Parameter is only allowed to be change in cell state HALTED

0 to 2 if combined Bcch and SDCCH/4 is used

Multiframes Period - defined period of transmission for PAGING REQUEST messages to the Parameter is only allowed to be change in cell state HALTED

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. RBS2000 and 200 only support the range 0 to 1023.

Early Classmark Sending Control - indicates if an MS in the cell is allowed to use

TSC Training Sequence Code 0 to 7 Same as BCC 1,4,7

MSTXPWR 33 33 dBm

30 30 dBm

STATE Cell or Channel Group state ACTIVE, HALTED - ACTIVE The cell or channel group is active or halted

HOP Frequency hopping status ON, OFF, TCH TCH TCH SDCCHs as well as TCHs can hop.

A bcch will not hop even if it belongs to a channel group defined as hopping

HSN Hopping Sequence Number 0 to 63 system 1 to 63

HSN=0 : cyclic hopping sequences defined

HSN=1 to 63 : pseudo random sequences

NUMREQBPC 8 to 128 in steps of 8, SYSDEF SYSDEF 16 to 96 range SYSDEF: system defined limit [ 1 TRX = 8]

DCHNO Absolute RF channel number 1 to 124( GSM900) - 32 ARFCN GSM900: max 31 DCHNO, GSM1800: max 31 DCHNO, GSM1900: max 31 DCHNO

Related to BCCH plan 512 to 885 (GSM1800)

SDCCH Required number of SDCCH/8 0 to 16 1 1 sdcch Refer to notes for different types of configurations

TN 1 1st TimeSlot TN is only valid for CCHPOS = TN and must be equal for all channel groups in a cell.

CBCH Cell Broadcast Channel Yes, No No NO

SCHO SDCCH handover switch ON, OFF OFF OFF ON - handovers on SDCCH are allowed; OFF - handovers on SDCCH are not allowed

DTXD Discontinuous Transmission Downlink ON, OFF OFF OFF Note: ON: DTX DL is enabled for the cell; OFF: DTX DL is disabled for the cell

DTXU Uplink DTX indicator 0 to 2 1 1 Uplink discontinuous transmission means that the MS does not

transmit continuously, but only when necessary, thus being able

to save batteries

MAIO Mobile Allocation Index Offset 0 to 15 or DEFAULT DEFAULT DEFAULT SingTel using Baseband Hopping for GSM900 System, RF Hopping for GSM1800

FHOP Frequency Hopping BB, SY BB

BB: Baseband hopping

SY: Synthesiser hopping

Maximum transmit power for MS on connnection

13 to 43 dbm (GSM900) odd values only

4 to 30 dbm (GSM1800) odd values only

ON: The hopping status for the channel group is hopping for TCH and SDCCH

OFF: The hopping status for the channel group is non hopping

TCH: The hopping status fpr the channel group is hopping for TCH only

The number of required basic physical channels (BPCs) in a channel group

Timeslot number where the SDCCH/8 will be located.

0 to 3 (normal cell). 0, 2 (extended range cell).

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

CHGR 0 to 15 0 0

SCTYPE UL, OL - -

CELL DATA HCSBAND Layer

LAYER 1 to 8 2 1 /2

LAYERTHR 0 to 150 dbm 75 75 dBm / 95 dBm

LAYERHYST 0 to 63db 2 2 dB

PSSTEMP Signal strength penalty temporary offset 0 to 63db 0 0 dB

PTIMTEMP 0 to 600 seconds 0 0 second

FASTMSREG Handling of fast-moving mobiles switches ON, OFF OFF OFF

CSYSTYPE Specifies the system type for the cell GSM900 GSM900 Unless it is an Ericsson G18 cell, then it will be specified as GSM1800

MBCR 0 to 3 0 0 or 1

reported in the measurement report

IDLE MODE Cell Selection Criteria: C1, C2

ACCMIN 47 to 110 dBm - 110 dBm - 104 dBm 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 setup failures

CCHPWR 13 to 43 (GSM900) 33 33 dBm

4 to 30 (GSM1800) 30 30 dBm

CRH 0 to 14 in steps of 2db 4 4 dB C1(N) > C1 + CRH

over location area border (LAC)

NCCPERM 0 to 7 1, 4, 6 1,4,6 Up to 8 NCCs can be defined

CB Cell Bar Access Yes, No No No

CBQ HIGH, LOW HIGH HIGH

CRO 0 0 dB / 4 = 8 dB The setting of this parameter will only affect phase 2 MSs

TO 0 0 dB The setting of this parameter will only affect phase 2 MSs

A cell is divided into one or more channel groups which 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.

0 (for cells without a subcell structure).n/a (for overlaid subcells).0 (for underlaid subcells).

Subcell type. SingTel does not use Intelligent Underlay Overlay [IUO]

UL The subcell type is underlaid.OL The subcell type is overlaid.

Defines which cell layers belong to the specified HSCBAND. Layer 1 has the highest priority (microcell)

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.

The signal strength threshold is used for ranking of cells in different layer within each HCSBAND

Layer Hysteresis - signal strength is used for ranking cells in different layers within each HCSBAND

specifies the duration during which PSSTEMP is valid

GSM900, GSM1800, GSM1900, MIXED

Multi Band Cells Reported - defines the nos of neighbours from each frequency band that shall be

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.

Minimum received signal level in dbm at the MS for permission to access the system

Maximum transceiver power level an MS may use when accessinf on a control channel

Cell Reselection Hysteresis - receiving signal strength hysteresis for required cell reselection

PLMM (NCC) Permitted - defined the allow NCCs (Network Colour Code) on the BCCH carriers

for which the MS is permitted to send measurement reports

Cell Bar Qualify - HIGH: The cell has high priority; LOW: The cell has low priority

Cell Reselection Offset - defines an offset to encourage or discourage MSs to select the cell

0 to 63 [0 dB to 126 dB in steps of 2 dB)

while it is camping on another cell, eg: perforam a cell reselection

C2 = C1 + CRO − TO * H(PT − T) for PT ≠ 31C2 = C1 − CRO for PT = 31

Temporary Offset - defines a negative offset applied to CRO

0 to 7 [0 dB to infinite dB in steps of 10 dB]

PT 0 0 / 31 The setting of this parameter will only affect phase 2 MSs

T3212 40 20 = 2 hours

DOUBLE BA List

MBCCHNO 1 to 124 (GSM900) - 32 BCCH in the List

512 to 885 (GSM1800)

LISTTYPE IDLE, ACTIVE, Omited - IDLE/ ACTIVE

Extended range

RLINKUP 16 16

RINKT 16 16

MAXTA 0 to 63 (normal cell) 63 63

XRANGE Extended range cell YES, NO NO NO

Filter controfor measurement

SSEVALSD Signal strength filter for speech/data 1 to 9 6 6

QEVALSD Quality filter for speech./data 1 to 9 6 6 7: Exponential filter; 8: First order Butterworth filter

SSVALSI Signal strength filter for signalling only 1 to 9 6 6 9 Median filter

QEVALSI Quality filter for signalling only 1 to 9 6 6

SSLENSD Length of signal strength filter speech/data 1 to 20 SACCH periods 4 10 1 SACCH period (480 ms).

QLENSD Length of quality filter for speech/data 1 to 20 SACCH periods 12 12

SSLENSI 1 to 20 SACCH periods 4 10

QLENSI Length of quality filter for signalling only 1 to 20 SACCH periods 12 12

SSRAMPSD 1 to 20 SACCH periods 5 5

SSRAMPSI 1 to 20 SACCH periods 2 6

LOCATING DATA : Basic ranking of cell data

MISSNM 0 to 18 3 3

before old measurements are considered invalid

BSTXPWR 0 to 80 dbm 50 50 dBm

BSPWR 0 to 80 dbm 50 50 dBm

MSRXMIN 0 to 150 dbm 100 100 dBm

as a possible candidate for handover

Penalty time - defines duration for which TO is applied

0 to 31 [0 sec to 620 sec in steps of 20 sec]

Defines the time-out value that controls the location updating procedure,

0 to 255 deci hours [Infinite time out to 25.5 hours]

Absolute RF channel number for measurement on BCCH

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.Up to 32 BCCH carriers can be defined by specifying their ARFCN

identifies which type pf list the chosen frequencies will be on

Radio Link Time-out - the maximum value of the radio counter for the uplink

1 to 63 SACCH periods (480ms)

RLINKUP is used by the BSC to determine when to disconnect the call upon repeated failure in decoding the SACCH.

Radio Link Time-out - the maximum value of the radio downlink counter

8 to 64 in steps of 4 SACCH periods (480ms)

A counter that is given the value RLINKT is started in the MSafter the assignment of a dedicated channel. Two units increasethe counter if the SACCH data is successfully decoded. Oneunit decreases it if it cannot be successfully decoded. If thecounter reaches the value zero, then the call release is initiated.

Maximum timing advance before an MS is considered lost

If the measured timing advance value for an access burst isequal to or greater than MAXTA, then the connection set-upsignalling is terminated by the system.

If the cell is an extended range cell, traffic at a distance ofgreater than 35 km between the MS and the BTS can besupported

1 to 5: General FIR filters; 6: Straight Average filter

Length of signal strength filter for signalling only

Ramping length of signal strength for speech/data

Ramping length of signal strength for signalling only

Max no of consecutive missing measurements for serving cell or neighbouring cell permitted

Maximum number of consecutive missing measurements for a serving cell or neighbouring cell permitted before all old measurements are considered invalid.

is the BTS output power on all frequencies other than Bcch frequencyis the BTS output power on the [ BCCH frequency ]

Minimum required signal strength received at the MS in a given cell to consider the cell

BSRXMIN 0 to 150 dbm 116 116 dBm

cell as a possible candidate for handover

MSRXSUFF 0 to 150 dbm 0 0 dBm

according to the magnitude of the path loss

BSRXSUFF 0 to 150 dbm max 150 150 dBm

AW ON, OFF OFF ON

GPRS Channel administration

GPRS Activates/deactivates GPRS support in the cell ON, OFF ON ON

FPDCH 0 to 8 0 1 The dedicated Pdch will not be pre-empted by circuit switched traffic

PDCHALLOC NOPREF, FIRST, LAST NOPREF NOPREF note: NOPREF: the channel alocation algorithm should not consider this parameter

CHCODING CS 1 or 2 for Ericsson R8 CS 2 CS 2

PILTIMER 1 to3600. 20 seconds 20 seconds

GPRSPRIO 0,16,24 0 0 or 1

MS power control

DMPSTATE Dynamic MS power control state ACTIVE, INACTIVE INACTIVE ACTIVE

SSDES 47 to 110 dbm 85 95 dBm Lower desired SS to prevent interference in Urban Area

INIDES 47 to 110 dbm 70 85 dBm

SSLEN Length of stationary signal strength filter 3 to 15 SACCH periods 5 5 SACCH The value of SSLEN > INILEN.

INILEN Length of initial signal strength filter 0, 2 to 5 SACCH periods 2 2 SACCH Faster when value is lower

LCOMPUL 0 to 100% 70 30%

PMARG 0 to 20 dB 8 3 dB

QDESUL Desired quality uplink 0 to 70 dtqu 20 35 dtqu

QLEN Length of the uplink quality filter 1 to 20 SACCH periods 8 12 SACCH

Minimum required signal strength received at the BTS, at the reference point, to consider the

Sufficient signal strength received at the MS to consider the cell selectable for further ranking

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 lossAssignment to worst cell switch. Identifies if assignment to worse cell is allowed from that cell

used to dedicate a number of traffic channels in the cell for GPRS only

used in the channel allocation algorithm to determine where the first dedicated PSET of PDCH be allocated

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 ondemandchannels are allocated instead, until the requirement is fulfilled.

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.

CHCODING is used to the GPRS channel-coding scheme.

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.

0 (pre-empt GPRS connection when needed for voice)16 (pre-empt all but 1 idle GPRS ts)

24 (pre-empt only idle GPRS ts, leave busy GPRS connections alone)

Defines the target value for the desired signal strength uplink measured by the BTS during the stationary phase.

Defines the target value for the desired signal strength uplink measured by the BTS during the initial phase.

Path loss compensator factor, uplink. When set to zero, no power control towards SSDES is performed.

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.

QCOMPUL Quality deviation compensation factor, uplink 0 to 60 % 30 30%

REGINT Regulation interval, stationary, uplink 1 to 30 SACCH periods 3 3 SACCH

DTXFUL 0 to 40 SACCH periods 5 5 SACCH

BTS power control

DBPSTATE Dynamic BTS power control state ACTIVE, INACTIVE INACTIVE ACTIVE

SDCCHREG SDCCH power control switch ON, OFF OFF OFF

SSDESDL 47 to 110 dbm 70 90 dBm Lower desired SS to prevent interference in Urban Area

REGINTDL Regulation interval, downlink 1 to 10 SACCH periods 5 1 SACCH Faster steps of powering up by 2 dB at 1 SACCH

SSLENDL Length of downlink signal strength filter 3 to 15 SACCH periods 5 4 SACCH

LCOMPDL Path Loss compensator factor, downlink 0 to 100 % 70 20% When set to zero there is no power control towards SSDESDL.

QDESDL Desired quality, downlink 0 to 70 dtqu 20 0 dtqu RxQual = 0

QCOMPDL Quality deviation compensation factor, downlink 0 to 60 % 30% 60% When set to zero, no quality compensation is performed.

QLENDL Length of downlink quality filter 1 to 20 SACCH periods 8 5 SACCH

BSPWRMIN -20 to +50 dbm 20 20 dB

Urgency Conditions for Handover [Locating Algorithm]

TALIM 62 61

PSSBQ 0 to 63 db 10 dB 10 dB

PSSTA 0 to 63 db 63 63 dB

PTIMBQ Penalty time when handover due to bad quality 0 to 600 seconds 10 15 sec

PTIMTA 0 to 600 seconds 10 10 sec

QLIMDL 0 to 100 dtqu 55 55 dtpu Deci transformed GSM quality units (dtqu).

QLIMUL 0 to 100 dtqu 55 55 dtpu Deci transformed GSM quality units (dtqu).

Handover Failure

PSSHF 0 to 63 db 63 dB 63 dB

PTIMHF Penalty time at handover failure 0 to 600 seconds 15 15

Intra cell handover

IHO ON, OFF OFF OFF SingTel does not use Intra-Cell Handover. [Globe: ON ]

TMAXIHO Timer for handover counter 0 to 60 seconds 6 6 seconds 6

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.

Number of measurements periods before the full set of measurements are used

The MS can change the power level in steps of 2 dB with a maximum of 8 steps per SACCH period.

SDCCH power control switch. Identifies if power control onSDCCH is allowed on non BCCH frequencies.

defines the target value for the desired signal strength downlink as measured by MS in different parts of the power control interval.

Min allowed output power for the BTS at the locating reference point on the non Bcch freqs

Timing advance limit for handover - Urgency detection parameter

0 to 63 (normal cell) Bits periods (bp)

TALIM determines the maximum timing advance that the MS is recommended to use in the cell

0 to 219 (extended range cell) bp

Signal strength penalty when handover due to bad quality. This penalty is valid during PTIMBQSignal strength penalty when handover doe to too large timing advance. It is valid during PTIMTA

Penalty time when handover due to too large timing advance

Quality limit downlink for handover. Urgency detection parameter

Quality limit uplink for handover. Urgency detection parameter

Signal strength penalty at handover failure

Intra handover switch: ON - Intra cell handover is allowed; OFF - Intra cell is not allowed

TIHO Intra cell handover inhibition timer 0 to 60 seconds 10 5 seconds 10

MAXIHO 0 to 15 3 3 3

QOFFSETUL Offset for quality uplink -50 to +50 dtqu 0 0 10

QOFFSETDL Offset for quality downlink -50 to +50 dtqu 0 0 10

SSOFFSETULOffset for signal strength uplink -30 to +30 db 0 0 0

SSOFFSETDLOffset for signal strength downlink -30 to +30 db 0 0 0

Idle Channel Measurements

ICMSTATE Idle Channel Measurement State ACTIVE, PASSIVE, NOALLOC PASSIVE ACTIVE

INTAVE 1 to 31 SACCH periods 6 6 SACCH

LIMITn LIMIT1 = 0 to 59 2 2 Band 1 : -108 dBm

LIMIT2 = 1 to 60 6 6 Band 2 : - 104 dBm

LIMIT3 = 2 to 61 12 12 Band 3 : - 98 dBm

LIMIT4 = 3 to 62 22 25 Band 4 : - 85 dBm

CELL LOAD SHARING

CLSSTATE ACTIVE, INACTIVE INACTIVE ACTIVE For CLSSTATE activation to have effect, CLSSTATE must be activated

CLSACC 1 to 100 % 40% 40%

CLSLEVEL 0 to 99 % 20% 20% The value of of CLSLEVEL must be less than the value of CLSACC

evaluations are initiated.

HOCLSACC ON, OFF OFF ON

RHYST 0 to 100 % 75% 75%

evaluation

CLSRAMP Cell load sharing ramping time parameter. 0 to 30 seconds 5 seconds 5 The interval during which value of RHYST is ramped up from zero to the final value.

Neighbourin

Cell RelationSingTel is using Ericsson 3 Algorithm

Ericsson 1

CELLR Related Cell designation 1 to 7 Characters - -

Maximum number of consecutive intra-cell handovers

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.

The number of measurements that should be used in the calculation of the interference band for a channel

defines threshold limits for five different interference bands

Cell load sharing active/inactive for an individual cell

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

Percentage of available full rate capable traffic channels at which or below which Cell load sharing

Handover due to cell load sharing accepted to this cell

Hysteresis reduction parameter - determines how much hysteresis can be reduced in the cell load sharing

Ericsson 1 locating algorithm:TRHYSTKHYSTLHYSTTROFFSETKOFFSETLOFFSET

Ericsson 3 locating algorithm:HIHYSTLOHYSTHYSTSEPOFFSET

KHYST 0 to 63db 3 dB 3 dB

LHYST Path Loss hystersis when evaluating L-cells 0 to 63db 3 dB 3 dB

TRHYST -63 to 63 db 2 dB 3 dB

KOFFSET Signal strength offset when evaluating K-cells 0 to 63 db 0 3 dB If set to 6 dB, Slower handover to CELLR

LOFFSET Path Lloss offset when evalutaing L-cells -63 to 63 db 0 0 dB

TROFFSET -63 to 63 db 0 0 dB

BQOFFSET 0 to 63db 63 dB 3 dB If set to 0 dB, faster handover to CELLR

CAND Candidate Type AWN, NHN, BOTH BOTH BOTH

AWN: Neighbour at assignment to worse cell

BOTH: Both of the above

AWOFFSET 0 to 63 db 3 dB 3 3 dB -> 20 dB when Serving cell is Congested, to offload to other cell [CELLR]

Ericsson 3

HIHYST 0 to 63 db 5 dB 5 dB

LOHYST 0 to 63 db 3 dB 3 dB

HYSTSEP 0 to 150 dbm 90 dBm 90 dBm

OFFSET Signal strength offset -63 to 63 db 0 3 dB

Signal strength hystersis when evaluating K-cells

Signal Strength hysteresis for a K- and L- cell border segment

Signal strength offset for a K- and L-cell border segment

Signal strength region for bad quality urgency handovers

NHN: Neighbour at normal handover and at assignment to better cell

Signal strength region where assignment to worse cell is allowed

Signal strength hysteresis when evaluating high signal strength cells

Signal strength hysteresis when evaluating low signal strength cells

Signal strength separator for high and low signal strength cells

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.