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