Ericsson-Counters.xlsx

(1)

Object Type

Short Description

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.

---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:

---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

Paging

Random Access

Cell Down Time

(2)

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)

(3)

---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 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.

(4)

CLTCHDRAH 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) NCELLREL,

NECELLREL Handover counters _{(internal/external)}

(Handover) NICELASS, NECELASS

Counters for handovers at assignment (internal/external)

(5)

---NCELLREL, NECELLREL Handover counters _{(internal/external)}

(6)

NICELASS, NECELASS Counters for handovers at _{assignment (internal/external)}

---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

(7)

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.

---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.

(8)

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.

(9)

STS Counters

TDWNACC, TDWNSCAN

---TOTPAG, TOTCONGPAG 1 PAGPCHCONG, PAGETOOOLD

---CNROCNT, RAACCFA, RAEMCAL, RACALRE, RAANPAG, RAOSREQ, RAOTHER, RATRHFAEMCAL, RATRHFAREG, RATRHFAOTHER

1

---SDCCH - Traffic / Congestion

Fórmulas

Paging

Fórmulas

Random Access

Fórmulas

Cell Down Time

_Fórmulas

1

Fórmulas

(10)

CCALLS, CCONGS, CTCONGS, CTRALACC, CNSCAN, CNDROP, CNUCHCNT, CAVAACC, CAVASCAN, CMSESTAB, CNRELCONG, CCALLSSUB, CCONGSSUB, CTCONSUB, CTRALSUB, CNSCANSUB, CNUCHSUB, CAVASUB, CAVASCANSUB, CMSESTABSUB,

CNRELCONGSUB

CDISQA, CDISSS1...5, CDISTA, CDISQASUB, CDISSS, CDISSSSUB (It should be noticed that these counters are disjoint)

CCHHOCNT, CCHHOSUC, CCHHOTOCH

14 1 2 5 6 3 4 9 10 7 8 11 12 13

(11)

---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

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

TFDISTAA, TFSUDLOSA, TFSUDLOSSUBA, TFDISSDLA/ULA/BLA, TFDISSDLSUBA/ULSUBA/BLSUBA, TFDISQADLA/ULA/BLA, TFDISQADLSUBA/ULSUBA/BLSUBA

TCH - Traffic / Congestion/ Drop

Fórmulas

1

(12)

THDISTAA, THSUDLOSA, THSUDLOSSUBA, THDISSDLA/ULA/BLA, THDISSDLSUBA/ULSUBA/BLSUBA, THDISQADLA/ULA/BLA, THDISQADLSUBA/ULSUBA/BLSUBA

HOVERCNT, HOVERSUC, HORTTOCH

HOASBCL, HOASWCL, HOSUCBCL, HOSUCWCL

5 6 3 4 9 10 7 8

(13)

---HOVERCNT, HOVERSUC, HORTTOCH

10 13 14 11 12

Handover

Fórmulas

1 15 16

(14)

HOASBCL, HOASWCL, HOSUCBCL, HOSUCWCL

---TSQIGOOD, TSQIACCPT, TSQIBAD, TSQIGOODSUB,

TSQIACCPTSUB, TSQIBADSUB --- ---(AMR Couters) :TSQIGOODAF,

TSQIGOODSUBAF, TSQIACCPTAF, TSQIACCPTSUBAF, TSQIBADAF, TSQIBADSUBAF, TSQIGOODAH,

TSQIGOODSUBAH, TSQIACCPTAH, TSQIACCPTSUBAH, TSQIBADAH, TSQIBADSUBAH

1

---1

Cell Disconnections

Fórmulas

2

(15)

DISNORM, DISBQA, DISBSS, DISETA

1

---NOACCOF, ITFOSIB1, ITFOSIB2, ITFOSIB3, ITFOSIB4, ITFOSIB5 1

NOACCOH, ITHOSIB1, ITHOSIB2, ITHOSIB3, ITHOSIB4, ITHOSIB5 2

(16)

NOACCUF, ITFUSIB1, ITFUSIB2, ITFUSIB3, ITFUSIB4, ITFUSIB5 3

(17)

---Discarded Paging due to Congestion (%) (BSC only)

---Random Access Success (%)

---Fórmulas

Fórmulas

Total Cell Down Time (Sec.)

Fórmulas

(18)

SDCCH establishment success rate for over- and underlaid subcell (SDCCH establishments in relation to the number of seizure attempts (when no SDCCH congestion))

SDCCH Traffic in OL/UL Cells (Erlang)

SDCCH Time Congestion UL (%)

Average No. of Available SDCCH OL/UL SDCCH Availability OL/UL (%)

Number of SDCCH Seizure Attempts No. of SDCCH Connections

SDCCH Drop Reason, Low SS (%) - Signal

strength is less than a predefined parameter SSSENSLEV (-104 dBm),

SDCCH Drop Reason, Bad Quality (%) Total No. of Dropped SDCCH Connections SDCCH Drop (%)

SDCCH Drop Reason, Excessive TA (%) SDCCH Drop Reason, Other (%)

(19)

---Fórmulas

TCH Traffic (Erlang)

(20)

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 No. of TCHs

Subscriber Perceived TCH Congestion (%)

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

Signal Strength downlink. The corresponding

TCH Assignment Success (%) - measures

the performance of assignments (change from SDCCH to TCH):

(21)

---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, Other (%)

Average No. of Available TCH TCH Drop Reason, Suddenly Lost Connection (%)

TCH Drop Reason, Excessive TA (%)

Fórmulas

Handover Success (%)

TCH Time Congestion FullRate UL (%)

(22)

---Percentage good / acceptable / bad SQI

samples of total number of SQI samples

---Handover Success (%)

Fórmulas

Handover Reversion (%)

(23)

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)

(24)

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)

(25)

DOWNTIME: RPL * 60 * TDWNACC / TDWNSCAN

(SYSTEM_CELL_MAIN / MSC_CELL_MAIN / BSC_CELL_MAIN):

RPL * 60 * C_TDWN

---BSC - (---BSC_DATA): 100 * TOTCONGPAG / TOTPAG

---(BSC_CELL_MAIN / CELL_MAIN ): 100 * CNROCNT / (CNROCNT + RAACCFA)

RANDOMACC

(CELL_MAIN): CNROCNT + RAACCFA

---Fórmulas

Fórmulas

(26)

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)

(27)

---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

(28)

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 ): TASSALL CELTCHF, CELTCHH, CLTCH:

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

(29)

100 * ((TFDISQADL + THDISQADL + TFDISQADLSUB + THDISQADLSUB) +

(TFDISQAUL + THDISQAUL + TFDISQAULSUB + THDISQAULSUB) + (TFDISQABL + THDISQABL + TFDISQABLSUB + THDISQABLSUB)) / (TFNDROP + THNDROP + TFNDROPSUB + THNDROPSUB)

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)

100 * (TNDROP - (TDISSDL + TDISSUL + TDISSBL +TDISQADL + TDISQAUL + TDISQABL + TDISTA + TSUDLOS)) / TNDROP

CLTCH: TAVAACC / TAVASCAN

(CELL_MAIN_PEAK): C_TAVA

CELTCHF: 100 * TFTCONGS / (RPL * 60) --- Full-rate 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)

---NCELLREL, NECELLREL:

(30)

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)

---TSQIGOOD * 100 / (---TSQIGOOD + TSQIACCPT + TSQIBAD) [%] TSQIACCPT * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%] TSQIBAD * 100 / (TSQIGOOD + TSQIACCPT + TSQIBAD) [%]

---Fórmulas

(31)

(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) [%]

(32)

.-> 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) [%]

(33)

Total Cell Down Time (Sec.)

Discarded Paging due to Congestion (%) (BSC only)

Random Access Success (%) 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

(34)

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)

(35)

Percentage of idle Half-rate TCH in underlaid subcell in interference band (1 to 5)

(36)

RPL * 60 * TDWNACC / TDWNSCAN 100 * TOTCONGPAG / TOTPAG

100 * CNROCNT / (CNROCNT + RAACCFA) CNROCNT + RAACCFA CTRALACC / CNSCAN OL + UL 100 * CTCONGS / (RPL * 60) UL CCALLS OL + UL CMSESTAB OL + UL CAVAACC / CAVASCAN OL + UL

100 * (CAVAACC / CAVASCAN) / CNUCHCNT OL + UL

CNDROP OL + UL

100 * CNDROP / CMSESTAB OL + UL

100 * (CDISSS + CDISSSSUB) / CNDROP

OL + UL

100 * (CDISQA + CDISQASUB) / CNDROP OL + UL

100 * CDISTA / CNDROP

100 * (CNDROP - ((CDISSS + CDISSSSUB) + (CDISQA + CDISQASUB) + CDISTA)) /

CNDROP OL + UL

100 * CNRELCONG / (CMSESTAB-CCHHOSUC) OL + UL

( CMSESTAB / ( CCALLS - (CCONGS + CCONGSSUB) )) * 100 [%]

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)

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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) [%]

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.-> 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) [%]