Ericsson-Counters.xlsx
September 29, 2017 | Author: shin_chan | Category: N/A
Short Description
Counters in Ericsson...
Description
Object Type
Short Description
Cell Down Time DOWNTIME
Downtime statistics - The counter TDWNACC is stepped every tenth second if there are no TCHs in IDLE or BUSY state in the cell and the cell state is ACTIVE.
--------------------------------------------------------------------Paging BSC
Paging counters (on BSC level)
CELLPAG
Paging counters on cell level. The new counters are only for the PCH queue in the BTS. Pages on PPCH are not queued in the BTS:
--------------------------------------------------------------------Random Access RANDOMACC
Random access (Cell Level). The number of successful and failed random accesses are registered and information about the distribution of the reasons for random access is also available. A failed random access burst does not necessarily lead to a call setup failure, as the MS sends many RA bursts each time it tries to connect to the network. A high number of RA failures might be caused by bad BSIC planning or interference
--------------------------------------------------------------------SDCCH - Traffic / Congestion
CLSDCCH, CLSDCCHO
Traffic measurements for SDCCH per cell (Cell Level). SDCCH counters (O=OL => SUB). The call attempts go from the successful random access to TCH via an SDCCH. Some of the counters connected with this process are as follows. They are situated in the object types CLSDCCH, CLSDCCHO, CLTCH and CELTCHF/H, some of then ever described above.
CELLCCHDR
Dropped connections for control channels (Cell Level)
CELLCCHHO
SDCCH Handovers per Cell
--------------------------------------------------------------------TCH - Traffic / Congestion/ Drop CELTCHF
TCH/FR connections (Cell Level)
CELTCHH
TCH/HR connections (Cell Level)
CLTCH
Traffic channel connections counters (Cell Level)
CLTCHDRF
Counters for dropped connections for FR traffic channels (Cell Level) 1. Excessive TA 2. Low signal strength in downlink and/or uplink 3. Bad quality in downlink and/or uplink 4. Sudden loss of connection
CLTCHDRH
Counters for dropped connections for HR traffic channels (Cell Level) 1. Excessive TA 2. Low signal strength in downlink and/or uplink 3. Bad quality in downlink and/or uplink 4. Sudden loss of connection
CLTCHDRAF
Counters for dropped connections on AMR full rate. The general counters for dropped calls on all fullrate codecs are still stepped when one of these counters specfic to AMR codecs is stepped. For example if an AMR full-rate connection is dropped because of low signal strength on the downlink in the overlaid subcell then TFNDROP, TFDISSSDLSUB and TFDISSDLSUBA are all stepped.
CLTCHDRAH
(Handover) NCELLREL, NECELLREL
(Handover) NICELASS, NECELASS
Counters for dropped connections on AMR half rate (Cell Level). The general counters for dropped calls on all full-rate codecs are still stepped when one of these counters specfic to AMR codecs is stepped. For example if an AMR full-rate connection is dropped because of low signal strength on the downlink in the overlaid subcell then TFNDROP, TFDISSSDLSUB and TFDISSDLSUBA are all stepped. Handover counters (internal/external) Counters for handovers at assignment (internal/external)
--------------------------------------------------------------------Handover NCELLREL, NECELLREL
Handover counters (internal/external)
NICELASS, NECELASS
Counters for handovers at assignment (internal/external)
--------------------------------------------------------------------TCH Speech Quality CELLSQI
Speech quality supervision measurements for TCH/Fs (Cell Level). The object type CELLSQI contains three counters that show how the speech quality indexes are distributed, according to subscriber perceived quality, as good, acceptable and bad for the underlaid subcell. These counters only step for speech version 1 (FR and HR) and speech version 2 (EFR) codecs. There are three matching counters for overlaid subcells. Twelve new counters have been added to the object type CELLSQI to monitor the speech quality separately for AMR full rate and AMR half rate codecs and per underlaid/overlaid subcell. The thresholds that classifies the SQI values into these three categories are 4.5 dBQ and 16.5 dBQ, i.e. everything below 4.5 dBQ is "Unsatisfactory", everything between 4.5 and 16.5 dBQ is "Acceptable" and everything above 16.5 dBQ is "Good".
--------------------------------------------------------------------Cell Disconnections
CELEVENTD
Subscriber initiated disconnections. (Cell Level) The counters are stated in order of urgency status, e.g. if a call suffers from both bad signal strength and too high timing advance the disconnection is counted by DISETA. When TCH is used for speech, at all received CLEAR COMMAND messages from the MSC, with cause code 'call control', the normal disconnection counter (DISNORM) is incremented. Additionally, a counter is incremented per type of urgency state as indicated by the function Assignment or Handover: Excessive TA (DISETA), that is if the TA value at a disconnected connection is higher than or equal to the cell parameter TALIM. Low signal strength (DISBSS), that is if the signal strength is less than the BSC exchange properties LOWSSUL and LOWSSDL in uplink or downlink respectively, or in both the uplink or downlink. Bad radio link quality (DISBQA), that is if the radio link quality is less than the BSC exchange properties BADQUL and BADQDL in uplink or downlink respectively, or in both the uplink and downlink.
--------------------------------------------------------------------Idle Traffic Channel Measurements IDLEOTCHF
(Idle Traffic Channels/Full Rate in Overlaid Subcell per Cell) The overlaid and underlaid subcell counters are disjoint.
IDLEOTCHH (Idle Traffic Channels/Half Rate in Overlaid Subcell per Cell) The overlaid and underlaid subcell counters are disjoint.
IDLEUTCHF
(Idle Traffic Channels/Full Rate in Underlaid Subcell per Cell)The overlaid and underlaid subcell counters are disjoint.
IDLEUTCHH (Idle Traffic Channels/Half Rate in Underlaid Subcell per Cell) The overlaid and underlaid subcell counters are disjoint.
STS Counters
ll Down Time TDWNACC, TDWNSCAN
1
----------------------------------------------------------------------------Paging TOTPAG, TOTCONGPAG PAGPCHCONG, PAGETOOOLD
1
-----------------------------------------------------------------------------
andom Access CNROCNT, RAACCFA, RAEMCAL, RACALRE, RAANPAG, RAOSREQ, RAOTHER, RATRHFAEMCAL, RATRHFAREG, RATRHFAOTHER
1
2
-----------------------------------------------------------------------------
Traffic / Congestion
CCALLS, CCONGS, CTCONGS, CTRALACC, CNSCAN, CNDROP, CNUCHCNT, CAVAACC, CAVASCAN, CMSESTAB, CNRELCONG, CCALLSSUB, CCONGSSUB, CTCONSUB, CTRALSUB, CNSCANSUB, CNUCHSUB, CAVASUB, CAVASCANSUB, CMSESTABSUB, CNRELCONGSUB
1
CDISQA, CDISSS1...5, CDISTA, CDISQASUB, CDISSS, CDISSSSUB (It should be noticed that these counters are disjoint) CCHHOCNT, CCHHOSUC, CCHHOTOCH 2
3 4 5 6 7 8 9 10 11
12
13
14
-----------------------------------------------------------------------------
ic / Congestion/ Drop TFNDROP, TFCASSALL, TFMSESTB, TFMSESTBSUB, TFCALLS, TFCALLSSUB, TFTCONGS, TFTCONSUB, TFTRALACC, TFNSCAN, TFTRALSUB, TFNDROPSUB, TFCASSALLSUB, TFCONGSAS, TFCONGSASSUB, TFCONGSHO, TFCONGSHOSUB, TFNRELCONG, TFNRELCONGSUB, TFTHARDCONGS, TFTHARDCONGSSUB THNDROP, THCASSALL, THMSESTB, THMSESTBSUB, THCALLS, THCALLSSUB, THTCONGS, THTCONSUB, THTRALACC, THNSCAN, THTRALSUB, THNDROPSUB, THCASSALLSUB, THCONGSAS, THCONGSASSUB, THCONGSHO, THCONGSHOSUB, THNRELCONG, THNRELCONGSUB
1
TNUCHCNT, TNUCHSUB, TAVAACC, TAVASCAN, TAVASUB, TAVASCANSUB, TASSALL, NONAVFCH, NONAVHCH, TASSATT, TCHSIG TFDISTA, TFDISSS1...5, TFSUDLOS, TFSUDLOSSUB, TFDISSDL/UL/BL, TFDISSDLSUB/ULSUB/BLSUB, TFDISQADL/UL/BL, TFDISQADLSUB/ULSUB/BLSUB
THDISTA, THDISSS1...5, THSUDLOS, THSUDLOSSUB, THDISSDL/UL/BL, THDISSDLSUB/ULSUB/BLSUB, THDISQADL/UL/BL, THDISQADLSUB/ULSUB/BLSUB 2
TFDISTAA, TFSUDLOSA, TFSUDLOSSUBA, TFDISSDLA/ULA/BLA, TFDISSDLSUBA/ULSUBA/BLSUBA, TFDISQADLA/ULA/BLA, TFDISQADLSUBA/ULSUBA/BLSUBA
THDISTAA, THSUDLOSA, THSUDLOSSUBA, THDISSDLA/ULA/BLA, THDISSDLSUBA/ULSUBA/BLSUBA, THDISQADLA/ULA/BLA, THDISQADLSUBA/ULSUBA/BLSUBA
3
HOVERCNT, HOVERSUC, HORTTOCH HOASBCL, HOASWCL, HOSUCBCL, HOSUCWCL
4
5
6
7
8
9
10
10
11
12
13
14
15
16
----------------------------------------------------------------------------Handover HOVERCNT, HOVERSUC, HORTTOCH 1
HOASBCL, HOASWCL, HOSUCBCL, HOSUCWCL
1
2
-----------------------------------------------------------------------------
Speech Quality TSQIGOOD, TSQIACCPT, TSQIBAD, TSQIGOODSUB, TSQIACCPTSUB, TSQIBADSUB -----------------------------------------------------------------------------------------------------------------------------------(AMR Couters) :TSQIGOODAF, TSQIGOODSUBAF, TSQIACCPTAF, TSQIACCPTSUBAF, TSQIBADAF, TSQIBADSUBAF, TSQIGOODAH, TSQIGOODSUBAH, TSQIACCPTAH, TSQIACCPTSUBAH, TSQIBADAH, TSQIBADSUBAH
1
-----------------------------------------------------------------------------
Disconnections
DISNORM, DISBQA, DISBSS, DISETA
1
-----------------------------------------------------------------------------
Channel Measurements NOACCOF, ITFOSIB1, ITFOSIB2, ITFOSIB3, ITFOSIB4, ITFOSIB5
1
NOACCOH, ITHOSIB1, ITHOSIB2, ITHOSIB3, ITHOSIB4, ITHOSIB5
2
NOACCUF, ITFUSIB1, ITFUSIB2, ITFUSIB3, ITFUSIB4, ITFUSIB5
3
NOACCUH, ITHUSIB1, ITHUSIB2, ITHUSIB3, ITHUSIB4, ITHUSIB5
4
Fórmulas Fórmulas Total Cell Down Time (Sec.)
---------------------------------------------------------------------Fórmulas Discarded Paging due to Congestion (%) (BSC only)
---------------------------------------------------------------------Fórmulas Random Access Success (%)
Random Access Attempts
---------------------------------------------------------------------Fórmulas
SDCCH Traffic in OL/UL Cells (Erlang)
SDCCH Time Congestion UL (%)
Number of SDCCH Seizure Attempts No. of SDCCH Connections Average No. of Available SDCCH OL/UL SDCCH Availability OL/UL (%) Total No. of Dropped SDCCH Connections SDCCH Drop (%) SDCCH Drop Reason, Low SS (%) - Signal strength is less than a predefined parameter SSSENSLEV (-104 dBm), SDCCH Drop Reason, Bad Quality (%) SDCCH Drop Reason, Excessive TA (%) SDCCH Drop Reason, Other (%)
SDCCH Drop due to TCH Congestion (%)
SDCCH establishment success rate for over- and underlaid subcell (SDCCH establishments in relation to the number of seizure attempts (when no SDCCH congestion))
---------------------------------------------------------------------Fórmulas TCH Traffic (Erlang)
TCH Erlang Minutes per Drop
No. of TCHs
Subscriber Perceived TCH Congestion (%)
TCH Drop (%) - The different drop reasons are ranked in the order excessive TA, low signal strength, bad quality or sudden loss of connection. This means that if connection suffers from excessive TA and low signal strength and drops, the drop reason will be registered as excessive TA. The urgency condition bad quality is triggered by a high bit error rate on up- or downlink. Total Assignment Attempts
TCH Assignment Success (%) - measures the performance of assignments (change from SDCCH to TCH):
Total No. of Dropped TCH Connections
TCH Drop Reason, Low SS (%)
TCH Drop Reason, Bad Quality (%) - The following BSC exchange properties are affecting counters for dropped calls and handover: BADQDL Threshold value for Bad Quality downlink. The corresponding parameter for uplink is BADQUL . Value range: 0-100dtqu. Default value: 55dtqu. LOWSSDL Threshold values for attenuation of
TCH Drop Reason, Bad Quality (%) - The following BSC exchange properties are affecting counters for dropped calls and handover: BADQDL Threshold value for Bad Quality downlink. The corresponding parameter for uplink is BADQUL . Value range: 0-100dtqu. Default value: 55dtqu. LOWSSDL Threshold values for attenuation of Signal Strength downlink. The corresponding TCH Drop Reason, Suddenly Lost Connection (%)
TCH Drop Reason, Excessive TA (%)
TCH Drop Reason, Other (%)
Average No. of Available TCH TCH Time Congestion FullRate UL (%)
TCH Time Congestion HalfRate UL (%)
---------------------------------------------------------------------Fórmulas Handover Success (%)
Handover Success (%)
Handover Reversion (%)
---------------------------------------------------------------------Fórmulas Percentage good / acceptable / bad SQI samples of total number of SQI samples
--------------------------------------------------------------------Fórmulas
Ratio of subscriber initiated disconnections at bad quality
---------------------------------------------------------------------Fórmulas Percentage of idle full-rate TCH in overlaid subcell in interference band (1 to 5)
Percentage of idle Half RateTCH in Overlaid Subcell in interference band (1 to 5)
Percentage of idle full-rate TCH in underlaid subcell in interference band (1 to 5)
Percentage of idle Half-rate TCH in underlaid subcell in interference band (1 to 5)
Fórmulas Fórmulas DOWNTIME:
RPL * 60 * TDWNACC / TDWNSCAN
(SYSTEM_CELL_MAIN / MSC_CELL_MAIN / BSC_CELL_MAIN): RPL * 60 * C_TDWN
------------------------------------------Fórmulas BSC - (BSC_DATA): 100 * TOTCONGPAG / TOTPAG
------------------------------------------Fórmulas (BSC_CELL_MAIN / CELL_MAIN ):
RANDOMACC (CELL_MAIN):
100 * CNROCNT / (CNROCNT + RAACCFA)
CNROCNT + RAACCFA
------------------------------------------Fórmulas
CLSDCCH:
CTRALACC / CNSCAN
(BSC_CELL_MAIN / CELL_MAIN):
C_CTRALACC
CLSDCCH: 100 * CTCONGS / (RPL * 60) (BSC_CELL_MAIN, BSC_CELL_OL / CELL_MAIN, CELL_OL ): 100 * (CTCONGS- CTCONGS_OL) / ( RPL * 60) CLSDCCH (BSC_CELL_MAIN / CELL_MAIN ): CCALLS CLSDCCH (MSC_CELL_MAIN / BSC_CELL_MAIN / CELL_MAIN): CMSESTAB CLSDCCH: CAVAACC / CAVASCAN (CELL_MAIN_PEAK): C_CAVAACC CLSDCCH: 100 * (CAVAACC / CAVASCAN) / CNUCHCNT (CELL_MAIN_PEAK): 100 * C_CAVAACC / CNUCHCNT CLSDCCH (BSC_CELL_MAIN / CELL_MAIN ): CNDROP CLSDCCH (BSC_CELL_MAIN / CELL_MAIN ): 100 * CNDROP / CMSESTAB CELLCCHDR, CLSDCCH: 100 * (CDISSS + CDISSSSUB) / CNDROP (BSC_CELL_MAIN / CELL_MAIN ): 100 * CDISSS / CNDROP CELLCCHDR, CLSDCCH: 100 * (CDISQA + CDISQASUB) / CNDROP (BSC_CELL_MAIN / CELL_MAIN ): 100 * CDISQA / CNDROP CELLCCHDR, CLSDCCH: (BSC_CELL_MAIN / CELL_MAIN ): 100 * CDISTA / CNDROP CLSDCCH, CELLCCHDR: 100 * (CNDROP - ((CDISSS + CDISSSSUB) + (CDISQA + CDISQASUB) + CDISTA)) / CNDROP (BSC_CELL_MAIN / CELL_MAIN ): 100 * (CNDROP - (CDISSS + CDISQA + CDISTA)) / CNDROP CLSDCCH, CELLCCHHO (BSC_CELL_MAIN, BSC_CELL_HO / CELL_MAIN, CELL_HO) 100 * CNRELCONG / (CMSSESTAB-CCHHOSUC) ( CMSESTAB / ( CCALLS - (CCONGS + CCONGSSUB) )) * 100 [%]
------------------------------------------Fórmulas CELTCHF, CELTCHH:
(TFTRALACC / TFNSCAN) + (THTRALACC / THNSCAN)
(BSC_CELL_MAIN / CELL_MAIN ): C_TTRALACC
CELTCHF, CELTCHH: RPL * ((TFTRALACC / TFNSCAN) + (THTRALACC / THNSCAN)) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB)
(BSC_CELL_MAIN /CELL_MAIN ):
RPL * C_TTRALACC / TNDROP
CLTCH
(BSC_CELL_MAIN / CELL_MAIN ):
TNUCHCNT
CELTCHF, CELTCHH, CLTCH, CLSDCCH: 100 * (CNRELCONG + (TFNRELCONG + THNRELCONG + TFNRELCONGSUB + THNRELCONGSUB)) / TASSALL -----------------------------------------------------------------------Total number of dropped calls due to TCH congestion divided by the total number of TCH assignments ( Failing TCH assignment attempts due to TCH congestion) (BSC_CELL_MAIN /CELL_MAIN ): 100 * (CNRELCONG + TNRELCONG) / TASSALL CELTCHF, CELTCHH, NCELLREL, NICELASS: 100 * (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) / ((TFCASSALL + THCASSALL + TFCASSALLSUB + THCASSALLSUB) + [sum incomming HO (HOVERSUC HOSUCBCL - HOSUCWCL)] - [sum outgoing HO (HOVERSUC - HOSUCBCL HOSUCWCL)]) (BSC_CELL_MAIN, BSC_CELL_HO / CELL_MAIN, CELL_HO ): 100 * TNDROP / (TCASSALL + (SUMIHOSUCC - SUMIABSUCC - SUMIAWSUCC) (SUMOHOSUCC - SUMOABSUCC - SUMOAWSUCC)) CLTCH (BSC_CELL_MAIN / CELL_MAIN ): CELTCHF, CELTCHH, CLTCH:
TASSALL
100 * (TFCASSALL + THCASSALL + TFCASSALLSUB + THCASSALLSUB) / TASSALL (BSC_CELL_MAIN / CELL_MAIN ): 100 * TCASSALL / TASSALL CELTCHF, CELTCHH: TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB (BSC_CELL_MAIN / CELL_MAIN ): TNDROP CLTCHDRF, CLTCHDRH, CELTCHF, CELTCHH: 100 * ((TFDISSDL + THDISSDL + TFDISSDLSUB + THDISSDLSUB) + (TFDISSUL + THDISSUL + TFDISSULSUB + THDISSULSUB) + (TFDISSBL + THDISSBL + TFDISSBLSUB + THDISSBLSUB)) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB)
-------------------------------------------------------------------------------------- Ratio
of TCH drops due to low signal strength, all rates, whole cell (BSC_CELL_MAIN / CELL_MAIN ): 100 * (TDISSDL + TDISSUL + TDISSBL) / TNDROP CLTCHDRF, CLTCHDRH, CELTCHF, CELTCHH:
100 * ((TFDISQADL + THDISQADL + TFDISQADLSUB + THDISQADLSUB) + (TFDISQAUL + THDISQAUL + TFDISQAULSUB + THDISQAULSUB) + (TFDISQABL + THDISQABL + TFDISQABLSUB + THDISQABLSUB)) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) (BSC_CELL_MAIN / CELL_MAIN ): 100 * (TDISQADL + TDISQAUL + TDISQABL) / TNDROP CLTCHDRF, CLTCHDRH, CELTCHF, CELTCHH: 100 * (TFSUDLOS + THSUDLOS + TFSUDLOSSUB + THSUDLOSSUB) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) (BSC_CELL_MAIN / CELL_MAIN ): 100 * TSUDLOS / TNDROP CLTCHDRF, CLTCHDRH, CELTCHF, CELTCHH: 100 * (TFDISTA + THDISTA) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) (BSC_CELL_MAIN / CELL_MAIN ): 100 * TDISTA / TNDROP CLTCHDRF, CLTCHDRH, CELTCHF, CELTCHH: 100 * ((TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) - ((TFDISSDL + THDISSDL + TFDISSDLSUB + THDISSDLSUB) + (TFDISSUL + THDISSUL + TFDISSULSUB + THDISSULSUB) + (TFDISSBL + THDISSBL + TFDISSBLSUB + THDISSBLSUB) + (TFDISQADL + THDISQADL + TFDISQADLSUB + THDISQADLSUB) + (TFDISQAUL + THDISQAUL + TFDISQAULSUB + THDISQAULSUB) + (TFDISQABL + THDISQABL + TFDISQABLSUB + THDISQABLSUB) + (TFDISTA + THDISTA) + (TFSUDLOS + THSUDLOS + TFSUDLOSSUB + THSUDLOSSUB))) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) (BSC_CELL_MAIN / CELL_MAIN ): 100 * (TNDROP - (TDISSDL + TDISSUL + TDISSBL +TDISQADL + TDISQAUL + TDISQABL + TDISTA + TSUDLOS)) / TNDROP CLTCH: TAVAACC / TAVASCAN (CELL_MAIN_PEAK): C_TAVA CELTCHF: 100 * TFTCONGS / (RPL * 60) ------------------------------------------------------ Fullrate TCH time congestion in underlaid subcell (CELL_MAIN_PEAK, CELL_OL_PEAK, CELL_HR_PEAK): 100 * (TTCONGS - TTCONGS_FR_OL - TTCONGS_HR) / (RPL * 60) CELTCHH: 100 * THTCONGS / (RPL * 60) (CELL_HR_PEAK, CELL_OL_PEAK): 100 * ( TTCONGS_HR - TTCONGS_HR_ OL) / (RPL * 60)
------------------------------------------Fórmulas NCELLREL, NECELLREL:
100 * (HOVERSUC + HOVERSUC) / (HOVERCNT + HOVERCNT) (BSC_CELL_HO /CELL_HO ): 100 * (SUMOHOSUCC + SUMEOHOSUCC) / (SUMOHOATT + SUMEOHOATT) NCELLRE, NECELLREL: 100 * (HORTTOCH + HORTTOCH) / (HOVERCNT + HOVERCNT) (BSC_CELL_HO /CELL_HO ): 100 * (SUMOHOREV + SUMEOHOREV) / (SUMOHOATT + SUMEOHOATT)
------------------------------------------Fórmulas TSQIGOOD * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%] TSQIACCPT * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%] TSQIBAD * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%]
-----------------------------------------Fórmulas
(DISBQA / DISNORM ) * 100 [%]
------------------------------------------Fórmulas .-> 100 * ITFOSIB1 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB2 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB3 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB4 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB5 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] .-> 100 * ITHOSIB1 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB2 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB3 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB4 / (ITHOSIB1 + ITHOSIB2 + ITFOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB5 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%]
.-> 100 * ITFUSIB1 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB2 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB3 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB4 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB5 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] .-> 100 * ITHUSIB1 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB2 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB3 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB4 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB5 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%]
Total Cell Down Time (Sec.) Discarded Paging due to Congestion (%) (BSC only)Success (%) Random Access Random Access Attempts SDCCH Traffic in OL/UL Cells (Erlang) SDCCH Time Congestion UL (%) Number of SDCCH Seizure Attempts No. of SDCCH Connections Average No. of Available SDCCH OL/UL SDCCH Availability OL/UL (%) Total No. of Dropped SDCCH Connections SDCCH Drop (%) SDCCH Drop Reason, Low SS (%) - Signal strength is less than a predefined parameter SSSENSLEV (-104 dBm), SDCCH Drop Reason, Bad Quality (%) SDCCH Drop Reason, Excessive TA (%) SDCCH Drop Reason, Other (%) SDCCH Drop due to TCH Congestion (%) SDCCH establishment success rate for over- and underlaid subcell (SDCCH establishments in relation to the number of seizure attempts (when no SDCCH congestion)) TCH Traffic (Erlang) TCH Erlang Minutes per Drop No. of TCHs Subscriber Perceived TCH Congestion (%) Total number of dropped calls due to TCH congestion divided by the total number of TCH assignments ( Failing TCH assignment attempts due to TCH congestion) TCH Drop (%) - The different drop reasons are ranked in the order excessive TA, low signal strength, bad quality or sudden loss of connection. This means that if connection suffers from excessive TA and low signal strength and drops, the drop reason will be registered as excessive TA. The urgency condition bad quality is triggered by a high bit error rate on up- or downlink.
Total TCH Assignment Attempts TCH Assignment Success (%) - measures the performance of assignments (change from SDCCH to TCH): Total No. of Dropped TCH Connections TCH Drop Reason, Low SS (%) Ratio of TCH drops due to low signal strength, all rates, whole cell
TCH Drop Reason, Bad Quality (%) - The following BSC exchange properties are affecting counters for dropped calls and handover: BADQDL Threshold value for Bad Quality downlink. The corresponding parameter for uplink is BADQUL . Value range: 0-100dtqu. Default value: 55dtqu. LOWSSDL Threshold values for attenuation of Signal Strength downlink. The corresponding parameter for uplink is LOWSSUL .Value range: -47-(-110)dBm. Default value: -104dBm.
TCH Drop Reason, Suddenly Lost Connection (%) TCH Drop Reason, Excessive TA (%) TCH Drop Reason, Other (%)
Average No. of Available TCH TCH Time Congestion FullRate UL (%) Full-rate TCH time congestion in underlaid subcell TCH Time Congestion HalfRate UL (%) Handover Success (%) Handover Reversion (%) Percentage good / acceptable / bad SQI samples of total number of SQI samples Ratio of subscriber initiated disconnections at bad quality Percentage of idle full-rate TCH in overlaid subcell in interference band (1 to 5)
Percentage of idle Half RateTCH in Overlaid Subcell in interference band (1 to 5)
Percentage of idle full-rate TCH in underlaid subcell in interference band (1 to 5)
Percentage of idle Half-rate TCH in underlaid subcell in interference band (1 to 5)
RPL * 60 * TDWNACC / TDWNSCAN 100 * TOTCONGPAG / TOTPAG 100 * CNROCNT / (CNROCNT + RAACCFA) CNROCNT + RAACCFA CTRALACC / CNSCAN 100 * CTCONGS / (RPL * 60) CCALLS CMSESTAB CAVAACC / CAVASCAN 100 * (CAVAACC / CAVASCAN) / CNUCHCNT CNDROP 100 * CNDROP / CMSESTAB 100 * (CDISSS + CDISSSSUB) / CNDROP 100 * (CDISQA + CDISQASUB) / CNDROP 100 * CDISTA / CNDROP 100 * (CNDROP - ((CDISSS + CDISSSSUB) + (CDISQA + CDISQASUB) + CDISTA)) / CNDROP 100 * CNRELCONG / (CMSESTAB-CCHHOSUC) ( CMSESTAB / ( CCALLS - (CCONGS + CCONGSSUB) )) * 100 [%]
OL + UL UL OL + UL OL + UL OL + UL OL + UL OL + UL OL + UL OL + UL OL + UL
OL + UL OL + UL
OL + UL (TFTRALACC / TFNSCAN) + (THTRALACC / THNSCAN) RPL * ((TFTRALACC / TFNSCAN) + (THTRALACC / THNSCAN)) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) TNUCHCNT 100 * (CNRELCONG + (TFNRELCONG + THNRELCONG + TFNRELCONGSUB + THNRELCONGSUB)) / TASSAL
100 * (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) / ((TFCASSALL + THCASSALL + TFCASSALLSUB + THCASSALLSUB) + [sum incomming HO (HOVERSUC HOSUCBCL - HOSUCWCL)] - [sum outgoing HO (HOVERSUC - HOSUCBCL HOSUCWCL)])
TASSALL 100 * (TFCASSALL + THCASSALL + TFCASSALLSUB + THCASSALLSUB) / TASSALL TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB 100 * ((TFDISSDL + THDISSDL + TFDISSDLSUB + THDISSDLSUB) + (TFDISSUL + THDISSUL + TFDISSULSUB + THDISSULSUB) + (TFDISSBL + THDISSBL + TFDISSBLSUB + THDISSBLSUB)) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB)
100 * ((TFDISQADL + THDISQADL + TFDISQADLSUB + THDISQADLSUB) + (TFDISQAUL + THDISQAUL + TFDISQAULSUB + THDISQAULSUB) + (TFDISQABL + THDISQABL + TFDISQABLSUB + THDISQABLSUB)) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB)
100 * (TFSUDLOS + THSUDLOS + TFSUDLOSSUB + THSUDLOSSUB) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) 100 * (TFDISTA + THDISTA) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) 100 * ((TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) - ((TFDISSDL + THDISSDL + TFDISSDLSUB + THDISSDLSUB) + (TFDISSUL + THDISSUL + TFDISSULSUB + THDISSULSUB) + (TFDISSBL + THDISSBL + TFDISSBLSUB + THDISSBLSUB) + (TFDISQADL + THDISQADL + TFDISQADLSUB + THDISQADLSUB) + (TFDISQAUL + THDISQAUL + TFDISQAULSUB + THDISQAULSUB) + (TFDISQABL + THDISQABL + TFDISQABLSUB + THDISQABLSUB) + (TFDISTA + THDISTA) + (TFSUDLOS + THSUDLOS + TFSUDLOSSUB + THSUDLOSSUB))) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB) TAVAACC / TAVASCAN 100 * TFTCONGS / (RPL * 60) 100 * THTCONGS / (RPL * 60) 100 * (HOVERSUC + HOVERSUC) / (HOVERCNT + HOVERCNT) 100 * (HORTTOCH + HORTTOCH) / (HOVERCNT + HOVERCNT) TSQIGOOD * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%] TSQIACCPT * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%] TSQIBAD * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%] (DISBQA / DISNORM ) * 100 [%] .-> 100 * ITFOSIB1 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB2 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB3 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB4 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] -> 100 * ITFOSIB5 / (ITFOSIB1 + ITFOSIB2 + ITFOSIB3 + ITFOSIB4 + ITFOSIB5) [%] .-> 100 * ITHOSIB1 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB2 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB3 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB4 / (ITHOSIB1 + ITHOSIB2 + ITFOSIB3 + ITHOSIB4 + ITHOSIB5) [%] -> 100 * ITHOSIB5 / (ITHOSIB1 + ITHOSIB2 + ITHOSIB3 + ITHOSIB4 + ITHOSIB5) [%] .-> 100 * ITFUSIB1 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB2 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB3 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB4 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%] -> 100 * ITFUSIB5 / (ITFUSIB1 + ITFUSIB2 + ITFUSIB3 + ITFUSIB4 + ITFUSIB5) [%]
.-> 100 * ITHUSIB1 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB2 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB3 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB4 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%] -> 100 * ITHUSIB5 / (ITHUSIB1 + ITHUSIB2 + ITHUSIB3 + ITHUSIB4 + ITHUSIB5) [%]
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