Ericsson Parameter

Ericsson Parameters Summary Parameter

Description

Range

BSPWRB

Base Station output power

0 -> 63 dbm

Ericsson

SingTel

Dafault

Recommended

Value

Value

45

45 dBm

Remarks Note that RBS2301 and 2302 only can supports till 33dbm

900: 31 GSM 1800: 33toto47dbm 45dbmInInodd oddvalues valuesonly only

BCCHNO BCCHTYPE

BCC - Base station colour code

BCC: 0 to 7

-

0 to 7

Absolute RF channel number for BCCH

1 to 124( GSM900)

-

-

512 to 885 (GSM1800)

-

-

NCOMB

NCOMB

BSIC = NCC BCC eg NCC=4 , BSIC will ranges from 40 to 47 Bcch - Broadcast Control Channel

Type of BCCH 1) COMB - indicates that the cell has a combined BCCH and SDCCH/4

COMB, COMBC, NCOMB

The BCCH is always allocated to time slot number 0 in the defined ARFCN

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

ARFCN - Absolute Radio Frequency Channel Number

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

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 Parameter is only allowed to be change in cell state HALTED

AGBLK

Number of reserved access granted blocks

0 to 7 if non-combined Bcch is used

1

1 AGBLK

Parameter is only allowed to be change in cell state HALTED

6

5 CCCH

Parameter is only allowed to be change in cell state HALTED

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

Multiframes Period - defined period of transmission for PAGING REQUEST messages to the

2 to 9 CCCH multiframes

same paging subgroups 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 FNOFFSET

Frame Number Offset - Indicates the time difference from the FN generator in the BTS

0 to 1325 TDMA Frames

ECSC

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

No - Early sending is not allowed

early classmark Sending.

Yes - Early sending is allowed

TSC

Training Sequence Code

0 to 7

MSTXPWR

Maximum transmit power for MS on connnection

0

0 TDMA Frame

Yes

YES

1,4,7

13 to 43 dbm (GSM900) odd values only

33

33 dBm

4 to 30 dbm (GSM1800) odd values only

30

30 dBm

-

ACTIVE

TCH

TCH

Cell or Channel Group state

ACTIVE, HALTED

HOP

Frequency hopping status

ON, OFF, TCH

The parameter ECSC has to be set to YES in order to allow the MS to send the MS mutliband and/or multislot capability.

Same as BCC

STATE

can be reduced. RBS2000 and 200 only support the range 0 to 1023.

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

The cell or channel group is active or halted SDCCHs as well as TCHs can hop. A bcch will not hop even if it belongs to a channel group defined as hopping

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

Hopping Sequence Number

0 to 63

HSN=0 : cyclic hopping sequences

system

1 to 63

defined

HSN=1 to 63 : pseudo random sequences NUMREQBPC The number of required basic physical channels (BPCs) in a channel group

8 to 128 in steps of 8, SYSDEF

DCHNO

Absolute RF channel number

1 to 124( GSM900)

Related to BCCH plan

512 to 885 (GSM1800)

SYSDEF

16 to 96 range

-

32 ARFCN

SYSDEF: system defined limit [ 1 TRX = 8] GSM900: max 31 DCHNO, GSM1800: max 31 DCHNO, GSM1900: max 31 DCHNO

SDCCH

Required number of SDCCH/8

0 to 16

1

1 sdcch

TN

Timeslot number where the SDCCH/8 will be located.

0 to 3 (normal cell).

1

1st TimeSlot

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

0, 2 (extended range cell).

Refer to notes for different types of configurations TN is only valid for CCHPOS = TN and must be equal for all channel groups in a cell.

Uplink discontinuous transmission means that the MS does not

0: The MSs may use uplink discontinuous transmission

transmit continuously, but only when necessary, thus being able

1: The MSs shall use uplink discontinuous transmission

to save batteries

2: The MSs must not use uplink discontinuous transmission MAIO

Mobile Allocation Index Offset

0 to 15 or DEFAULT

FHOP

Frequency Hopping

BB, SY

DEFAULT

DEFAULT

SingTel using Baseband Hopping for GSM900 System, RF Hopping for GSM1800

BB

BB: Baseband hopping SY: Synthesiser hopping A cell is divided into one or more channel groups which contain all physical channels on an arbitrary

0 (for cells without a subcell structure).

number of frequencies. Cells with a subcell structure must have at least one channel group defined in

n/a (for overlaid subcells).

CHGR

each subcell.

0 to 15

0

0

SCTYPE

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

UL, OL

-

-

CELL DATA

HCSBAND Layer

0 (for underlaid subcells). UL The subcell type is underlaid. OL The subcell type is overlaid.

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 LAYER

Defines which cell layers belong to the specified HSCBAND. Layer 1 has the highest priority (microcell) 1 to 8

LAYERTHR

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

2

1 /2

75

75 dBm / 95 dBm

LAYERHYST Layer Hysteresis - signal strength is used for ranking cells in different layers within each HCSBAND 0 to 63db

2

2 dB

PSSTEMP

Signal strength penalty temporary offset

0 to 63db

0

0 dB

PTIMTEMP

specifies the duration during which PSSTEMP is valid

0 to 600 seconds

0

0 second

0 to 150 dbm

FASTMSREG Handling of fast-moving mobiles switches

ON, OFF

CSYSTYPE

Specifies the system type for the cell

GSM900, GSM1800, GSM1900, MIXED

MBCR

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

0 to 3

OFF

OFF

GSM900

GSM900

0

0 or 1

have higher priority than cells in layer 3.

Unless it is an Ericsson G18 cell, then it will be specified as GSM1800 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.

reported in the measurement report

IDLE MODE Cell Selection Criteria: C1, C2 ACCMIN

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

47 to 110 dBm

- 110 dBm

- 104 dBm

CCHPWR

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

13 to 43 (GSM900)

33

33 dBm

4 to 30 (GSM1800)

30

30 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

CRH

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

0 to 14 in steps of 2db

4

4 dB

C1(N) > C1 + CRH

1, 4, 6

1,4,6

Up to 8 NCCs can be defined

over location area border (LAC) NCCPERM

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

0 to 7

for which the MS is permitted to send measurement reports CB

Cell Bar Access

Yes, No

CBQ

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

HIGH, LOW

CRO

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)

No

No

HIGH

HIGH

0

0 dB / 4 = 8 dB

The setting of this parameter will only affect phase 2 MSs C2 = C1 + CRO − TO * H(PT − T) for PT ≠ 31 C2 = C1 − CRO for PT = 31

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

Temporary Offset - defines a negative offset applied to CRO

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

0

0 dB

The setting of this parameter will only affect phase 2 MSs

PT

Penalty time - defines duration for which TO is applied

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

0

0 / 31

The setting of this parameter will only affect phase 2 MSs

T3212

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

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

40

20 = 2 hours

DOUBLE BA List 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 MBCCHNO

Absolute RF channel number for measurement on BCCH

LISTTYPE

identifies which type pf list the chosen frequencies will be on

1 to 124 (GSM900)

-

32 BCCH in the List can be defined by specifying their ARFCN

512 to 885 (GSM1800) IDLE, ACTIVE, Omited

-

IDLE/ ACTIVE

16

16

Extended range RLINKUP is used by the BSC to determine when to disconnect the call upon RLINKUP

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

1 to 63 SACCH periods (480ms)

repeated failure in decoding the SACCH. 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

RINKT

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

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

16

16

counter reaches the value zero, then the call release is initiated. If the measured timing advance value for an access burst is equal to or greater than MAXTA, then the connection set-up

MAXTA

Maximum timing advance before an MS is considered lost

0 to 63 (normal cell)

63

63

signalling is terminated by the system. 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

XRANGE

Extended range cell

YES, NO

NO

NO

supported

Filter control for measurement SSEVALSD

Signal strength filter for speech/data

1 to 9

6

6

1 to 5: General FIR filters;

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

QLENSD

Length of quality filter for speech/data

1 to 20 SACCH periods

SSLENSI

Length of signal strength filter for signalling only

1 to 20 SACCH periods

QLENSI

Length of quality filter for signalling only

1 to 20 SACCH periods

SSRAMPSD

Ramping length of signal strength for speech/data

SSRAMPSI

Ramping length of signal strength for signalling only

LOCATING DATA : Basic ranking of cell data

4

10

12

12

4

10

12

12

1 to 20 SACCH periods

5

5

1 to 20 SACCH periods

2

6

1 SACCH period (480 ms).

6: Straight Average filter

Maximum number of consecutive missing measurements for a serving cell or MISSNM

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

0 to 18

3

3 50 dBm

neighbouring cell permitted before all old measurements are considered invalid.

before old measurements are considered invalid BSTXPWR

is the BTS output power on all frequencies other than Bcch frequency

0 to 80 dbm

50

BSPWR

is the BTS output power on the [ BCCH frequency ]

0 to 80 dbm

50

50 dBm

MSRXMIN

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

0 to 150 dbm

100

100 dBm

0 to 150 dbm

116

116 dBm

0 to 150 dbm

0

0 dBm

0 to 150 dbm

max 150

150 dBm

ON, OFF

OFF

ON

ON

ON

as a possible candidate for handover BSRXMIN

Minimum required signal strength received at the BTS, at the reference point, to consider the cell as a possible candidate for handover

MSRXSUFF

Sufficient signal strength received at the MS to consider the cell selectable for further ranking according to the magnitude of the path loss

BSRXSUFF

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

AW

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

GPRS Channel administration GPRS

Activates/deactivates GPRS support in the cell

ON, OFF

FPDCH

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

0 to 8

PDCHALLOC used in the channel allocation algorithm to determine where the first dedicated PSET of PDCH be allocated NOPREF, FIRST, LAST

0

1

NOPREF

NOPREF

note: NOPREF: the channel algorithm should not be consider thisonparameter FIRST When allocating the alocation first dedicated PDCH it must allocated the non-

LAST When allocating dedicated PDCH it must not be allocated on the non-hopping BCCH frequency.

hopping BCCH frequency. If no channels are available on the non-hopping BCCH

If no channels are available on other frequencies than the non-hopping BCCH frequency ondemand

frequency on-demand channels are allocated instead, until the requirement is

channels are allocated instead, until the requirement is fulfilled. CHCODING

The dedicated Pdch will not be pre-empted by circuit switched traffic

CHCODING is used to the GPRS channel-coding scheme.

fulfilled. CS 1 or 2 for Ericsson R8

CS 2

CS 2

20 seconds

20 seconds

0

0 or 1

INACTIVE

ACTIVE

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 PILTIMER

circuit switched domain.

1 to3600.

0 (pre-empt GPRS connection when needed for voice) GPRSPRIO

16 (pre-empt all but 1 idle GPRS ts)

0,16,24

24 (pre-empt only idle GPRS ts, leave busy GPRS connections alone) MS power control DMPSTATE

Dynamic MS power control state

ACTIVE, INACTIVE

Defines the target value for the desired signal strength uplink measured by the BTS during the SSDES

stationary phase.

47 to 110 dbm

85

95 dBm

INIDES

Defines the target value for the desired signal strength uplink measured by the BTS during the initial 47 phase. 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 Path loss compensator factor, uplink. When set to zero, no power control towards SSDES is

0, 2 to 5 SACCH periods

2

2 SACCH

Faster when value is lower

LCOMPUL

performed.

0 to 100%

70

30%

Lower desired SS to prevent interference in Urban Area

Power margin on the new channel at assignment, intra-cell handover and subcell change and on the PMARG

old channel at assignment failure or handover failure.

0 to 20 dB

QDESUL

Desired quality uplink

0 to 70 dtqu

QLEN

Length of the uplink quality filter

1 to 20 SACCH periods

QCOMPUL

Quality deviation compensation factor, uplink

0 to 60 %

8

3 dB

20

35 dtqu

8

12 SACCH

30

30% 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

REGINT

Regulation interval, stationary, uplink

1 to 30 SACCH periods

3

3 SACCH

DTXFUL

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

0 to 40 SACCH periods

5

5 SACCH

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

power level.

BTS power control DBPSTATE

Dynamic BTS power control state

ACTIVE, INACTIVE

SDCCHREG

SDCCH power control switch

ON, OFF

INACTIVE

ACTIVE

OFF

OFF

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

defines the target value for the desired signal strength downlink as measured by MS in different SSDESDL

parts of the power control interval.

47 to 110 dbm

70

90 dBm

REGINTDL

Regulation interval, downlink

1 to 10 SACCH periods

5

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%

QDESDL

Desired quality, downlink

0 to 70 dtqu

20

0 dtqu

QCOMPDL

Quality deviation compensation factor, downlink

0 to 60 %

30%

60%

QLENDL

Length of downlink quality filter

1 to 20 SACCH periods

8

5 SACCH

20

20 dB

62

61

10 dB

10 dB

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

-20 to +50 dbm

Lower desired SS to prevent interference in Urban Area Faster steps of powering up by 2 dB at 1 SACCH When set to zero there is no power control towards SSDESDL. RxQual = 0 When set to zero, no quality compensation is performed.

Urgency Conditions for Handover [Locating Algorithm] TALIM

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

PSSBQ

Signal strength penalty when handover due to bad quality. This penalty is valid during PTIMBQ 0 to 63 db

PSSTA

Signal strength penalty when handover doe to too large timing advance. It is valid during PTIMTA

0 to 63 db

63

63 dB

PTIMBQ

Penalty time when handover due to bad quality

0 to 600 seconds

10

15 sec

PTIMTA

Penalty time when handover due to too large timing advance

0 to 600 seconds

10

10 sec

QLIMDL

Quality limit downlink for handover. Urgency detection parameter

0 to 100 dtqu

55

55 dtpu

Deci transformed GSM quality units (dtqu).

QLIMUL

Quality limit uplink for handover. Urgency detection parameter

0 to 100 dtqu

55

55 dtpu

Deci transformed GSM quality units (dtqu).

63 dB

63 dB

15

15

Handover Failure PSSHF

Signal strength penalty at handover failure

0 to 63 db

PTIMHF

Penalty time at handover failure

0 to 600 seconds

Intra cell handover IHO

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

ON, OFF

OFF

OFF

TMAXIHO

Timer for handover counter

0 to 60 seconds

6

6 seconds

SingTel does not use Intra-Cell Handover. [Globe: ON ] 6

TIHO

Intra cell handover inhibition timer

0 to 60 seconds

10

5 seconds

10

MAXIHO

Maximum number of consecutive intra-cell handovers

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

SSOFFSETDL Offset for signal strength downlink

-30 to +30 db

0

0

0

Idle Channel Measurements ACTIVE: The measurements made are used for statistical purposes and at channel allocation. PASSIVE: No idle channel measurements are made. ICMSTATE

Idle Channel Measurement State

INTAVE LIMITn

ACTIVE, PASSIVE, NOALLOC

NOALLOC: The measurements are used for statistical purposes only.

PASSIVE

ACTIVE

The number of measurements that should be used in the calculation of the interference band for a channel 1 to 31 SACCH periods

6

6 SACCH

defines threshold limits for five different interference bands

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

Cell load sharing active/inactive for an individual cell

ACTIVE, INACTIVE

INACTIVE

ACTIVE

CLSACC

Percentage of available full rate capable traffic channels in a target cell at or below which no

1 to 100 %

40%

40%

Percentage of available full rate capable traffic channels at which or below which Cell load sharing 0 to 99 %

20%

20%

For CLSSTATE activation to have effect, CLSSTATE must be activated

handovers due to Cell Load sharing will be accepted CLSLEVEL

The value of of CLSLEVEL must be less than the value of CLSACC

evaluations are initiated. HOCLSACC

Handover due to cell load sharing accepted to this cell

RHYST

Hysteresis reduction parameter - determines how much hysteresis can be reduced in the cell load sharing 0 to 100 %

ON, OFF

OFF

ON

75%

75%

5 seconds

5

evaluation CLSRAMP

Cell load sharing ramping time parameter.

0 to 30 seconds

The interval during which value of RHYST is ramped up from zero to the final value.

Ericsson 1 locating algorithm: TRHYST KHYST

Ericsson 3 locating algorithm:

LHYST

HIHYST

TROFFSET

LOHYST

KOFFSET

HYSTSEP

Neighbouring LOFFSET

OFFSET

Cell Relation SingTel is using Ericsson 3 Algorithm Ericsson 1 CELLR

Related Cell designation

1 to 7 Characters

-

-

KHYST

Signal strength hystersis when evaluating K-cells

0 to 63db

3 dB

3 dB

LHYST

Path Loss hystersis when evaluating L-cells

0 to 63db

3 dB

3 dB

TRHYST

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

KOFFSET

Signal strength offset when evaluating K-cells

LOFFSET

Path Lloss offset when evalutaing L-cells

TROFFSET

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

0

0 dB

BQOFFSET

Signal strength region for bad quality urgency handovers

0 to 63db

63 dB

3 dB

CAND

Candidate Type

AWN, NHN, BOTH

BOTH

BOTH

0 to 63 db

3 dB

3

5 dB

-63 to 63 db 0 to 63 db -63 to 63 db -63 to 63 db

2 dB

3 dB

0

3 dB

0

0 dB

If set to 6 dB, Slower handover to CELLR

If set to 0 dB, faster handover to CELLR

AWN: Neighbour at assignment to worse cell NHN: Neighbour at normal handover and at assignment to better cell BOTH: Both of the above AWOFFSET

Signal strength region where assignment to worse cell is allowed

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

Ericsson 3 HIHYST

Signal strength hysteresis when evaluating high signal strength cells

0 to 63 db

5 dB

LOHYST

Signal strength hysteresis when evaluating low signal strength cells

0 to 63 db

3 dB

3 dB

HYSTSEP

Signal strength separator for high and low signal strength cells

0 to 150 dbm

90 dBm

90 dBm

OFFSET

Signal strength offset

-63 to 63 db

0

3 dB

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.