Ericsson Counter : Intra-Cell Handover

HOINUQA Number of intra cell handover attempts (decisions) at bad uplink quality. The corresponding counter for the downlink is HOINDQAand for both links is HOINBQA. Only HOINBQA is stepped at bad quality on both links.

HOINSUC Number of successful intra cell handovers.

HOINBOCH Number of unsuccessful intra cell handover attempts, MS back to old channel.

BCDTCBCOM Number of intra-cell handover attempt out of BCCH channel group, BCCHDTCB criteria.

BCLOSSCOM Number of intra-cell handover attempt out of BCCH channel group, BCCHLOSS criteria.

BCDTCBSUC Number of successful intra-cell handover out of BCCH channel group, BCCHDTCB criteria.

BCLOSSSUC Number of successful intra-cell handover out of BCCH channel group, BCCHLOSS criteria.

HOATFRHRAMR Number of Intra Cell Handover Attempts due to FR to HR channel rate change made by an AMR capable mobile.

HOSUCFRHRAMR Number of successful Intra Cell Handovers due to FR to HR channel rate change made by an AMR capable mobile.

HOATFRHRNAMR Number of Intra Cell Handover Attempts due to FR to HR channel rate change made by a mobile not capable of AMR.

HOSUCFRHRNAMR Number of successful Intra Cell Handovers due to FR to HR channel rate change made by a mobile not capable of AMR.

HOATHRFRAMR Number of Intra Cell Handover Attempts due to HR to FR channel rate change made by an AMR capable mobile.

HOSUCHRFRAMR Number of successful Intra Cell Handovers due to HR to FR channel rate change made by an AMR capable mobile.

HOATHRFRNAMR Number of Intra Cell Handover attempts due to HR to FR channel rate change made by a mobile not capable of AMR.

HOSUCHRFRNAMR Number of successful Intra Cell Handovers due to HR to FR channel rate change made by a mobile not capable of AMR.

HOSUCTCHOPT  Number of successful Intra Cell Handover due to TCH optimization.

Read Also other topis : Ericsson Counter: Call Attempts, Drops on SDCCH, Congestion, Dropped Calls, Handover, Speech Quality, Paging, OL/UL Subcell

Ericsson Counter Speech Quality:

TSQIGOOD Accumulated number of SQI samples that represented good speech quality. The corresponding counter for overlaid subcell is TSQIGOODSUB

TSQIACCPT Accumulated number of SQI samples that represented acceptable speech quality. The corresponding counter for overlaid subcell isTSQIACCPTSUB

TSQIBAD Accumulated number of SQI samples that represented unsatisfactory speech quality. The corresponding counter for overlaid subcell is TSQIBADSUB

TSQIGOODAF Accumulated number of SQI samples for AMR full rate that represented good speech quality. 

TSQIACCPTAF Accumulated number of SQI samples for AMR fullrate that represented acceptable speech quality. The corresponding counter for overlaid subcell is TSQIACCPTSUBAF

TSQIBADAF Accumulated number of SQI samples for AMR full rate that represented unsatisfactory speech quality. The corresponding counter for overlaid subcell is TSQIBADSUBAF

TSQIGOODAH Accumulated number of SQI samples for AMRhalf rate that represented good speech quality. The corresponding counter for overlaid subcell is TSQIGOODSUBAH

TSQIACCPTAH Accumulated number of SQI samples for AMR half rate that represented acceptable speech quality. The corresponding counter for overlaid subcell is TSQIACCPTSUBAH

TSQIBADAH Accumulated number of SQI samples for AMR half rate that represented unsatisfactory speech quality. The corresponding counter for overlaid subcell is TSQIBADSUBAH

Read Also other topis : Ericsson Counter: Call Attempts, Drops on SDCCH, Congestion, Dropped Calls, Handover, Paging, Intra-Cell Handover, OL/UL Subcell

Ericsson Counter: Congestion

CCONGS : Congestion counter for underlaid subcell. Stepped each time an allocation attempt fails due to SDCCH congestion. Also available for overlaid subcells, CCONGSSUB.

CTCONGS : Congestion time counter for underlaid subcell. The counter is stepped each second all available SDCCH channels are busy. Also available for overlaid subcells, CTCONSUB.

CSCSTCONG :  Congestion time counter for signalling connection setup for procedures requiring a TCH. Starts incrementing when a signalling connection setup attempt for a procedure requiring a TCH fails and stops incrementing when there is a successful signalling connection setup of any kind on a SDCCH or a TCH

CSCSOPTCONG :  Congestion time counter for signalling connection setup for procedures that can be completed on a SDCCH. Starts incrementing when a signalling connection setup attempt for a procedure that can be completed on an SDCCH fails and stops incrementing when there is a successful signalling connection setup of any kind on a SDCCH.

CNRELCONG : Number of released connections on SDCCH due to TCH— or Transcoder (TRA) congestion in both underlaid and overlaid subcell. The subset for overlaid subcells is CNRELCONGSUB. CNDROP is stepped at the same time.

TFNRELCONG :  Number of released TCH signalling connections due to transcoder resource congestion during immediate assignment on TCH. The corresponding counter for half-rate is THNRELCONG. These counters are also available for overlaid subcell as TFNRELCONGSUB and THNRELCONGSUB. TFNDROP is stepped at the same time.

TFCONGSAS : Number of failed channel allocation attempts at assignment or immediate assignment in underlaid subcell. The counter is also available for half-rate and for overlaid subcells, e.g. THCONGSASSUB.

TFCONGSHO : Number of congestion at incoming handover in underlaid subcell. The counter is also available for half-rate and for overlaid subcells, e.g. THCONGSHOSUB.

TFTCONGS : Soft congestion time counter for underlaid subcell. The counter starts to increment when a channel is requested but no idle channels are available. The corresponding half-rate counter for overlaid subcells is named THTCONSUB. In the case of GPRS no consideration is made as to whether on-demand PDCHs exist in the cell or not i.e. both on-demand and fixed PDCHs are regarded as busy.

TFTHARDCONGS : Hard congestion time counter for underlaid subcell. The counter starts to increment only when it has not been possible to allocate a channel with the help of any type of preemption. The corresponding counter for overlaid subcells is named TFTHARDCONSUB.

Read Also other topis : Ericsson Counter: Call Attempts, Drops on SDCCH, Paging, Dropped Calls, Handover, Speech Quality, Intra-Cell Handover, OL/UL Subcell

Ericsson Counter: Drops on SDCCH

 CNDROP : The total number of dropped SDCCH channels in a cell.

CNRELCONG :  Number of released connection on SDCCH due to TCH— and transcoder congestion in underlaid and overlaid subcell. The subset for overlaid subcells is CNRELCONGSUB. The two counters are located in CLSDCCH and CLSDCCHO respectively. CNDROP is stepped at the same time.

CDISTA : Dropped SDCCH connection at excessive Timing Advance (TA).

CDISSS :  Dropped SDCCH connection at low signal strength on down— or uplink in underlaid subcell i.e. belowLOWSSDL and/or LOWSSUL. There is also a counter for overlaid subcell, CDISSSSUB.

CDISQA : Dropped SDCCH connection at bad quality down— or uplink per cell in underlaid subcell i.e. worse than BADQDL and/or BADQUL. There is also a counter for overlaid subcell, CDISQASUB.

Read Also other topis : Ericsson Counter: Call Attempts, Paging, Congestion, Dropped Calls, Handover, Speech Quality, Intra-Cell Handover, OL/UL Subcell

Ericsson Counter: Call Attempts

CCALLS : Channel allocation attempt counter (on SDCCH).

CMSESTAB : Successful MS channel establishments on SDCCH.

CCONGS : Congestion counter for underlaid subcell. Stepped per congested allocation attempt. The counter for overlaid subcell is CCONGSSUB.

CESTCHACTIV :  Number of SDDCH establishment failure that occurs under channel allocation and channel activation. Note that this counter is stepped also in case of SDCCH congestion.

CESTIMMASS : Number of SDCCH establishment failure due to timeout after sending Immediate Assignment, timer T3101 expired.

TFCASSALL : Number of assignment complete messages for all MS power classes in underlaid subcell, full-rate. There is also an identical counter for overlaid subcells, TFCASSALLSUB. There are corresponding counters for half-rate.

TASSATT : Number of first assignment attempts on TCH for all MS power classes. Both successful and unsuccessful attempts are counted in the target cell.

TASSALL : Number of first assignment attempts on TCH for all MS power classes. Successful attempts are counted in the target cell and failed attempts are counted in the serving cell. The serving cell is the cell where the mobile station was tuned to an SDCCH or TCH for signalling.

TCASSALL : Number of assignment complete messages on TCH for all MS power classes.

Read Also other topis : Ericsson Counter: Paging, Drops on SDCCH, Congestion, Dropped Calls, Handover, Speech Quality, Intra-Cell Handover, OL/UL Subcell

Ericsson Counter : Paging

PAGPCHCONG :  Number of paging messages discarded due to full cell paging queue.

PAGETOOOLD  : Number of paging messages discarded due to being too long in the paging queue. At the point when a page is taken from the paging queue, its age is calculated and compared to the BTS parameter AGE-OF-PAGING (the parameter is set to 5 seconds in Ericsson BSS). If it is too old, it is discarded and PAGETOOLD is incremented.

TOTPAG :  Number of paging messages received from the MSC.

TOTCONGPAG : Number of paging messages discarded due to lack of capacity in the BSC or due to congestion in the BSC paging queues or due to no Data Link Individual is available for a paging request taken from the paging queue.

NLAPAG1LOTOT : Number of first page attempts to an LA.

NLAPAG2LOTOT : Number of repeated page attempts to an LA.

NLAPAG1RESUCC :  Number of page responses to first page to an LA.

NLAPAG2RESUCC :  Number of page responses to repeated page to an LA.

NLALOCTOT : Total number of LU attempts in the LA.

NLALOCSUCC :  Number of successful LUs in the LA. 

Read Also other topis : Ericsson Counter: Call Attempts, Drops on SDCCH, Congestion, Dropped Calls, Handover, Speech Quality, Intra-Cell Handover, OL/UL Subcell

Bit Error Rate (BER)

The environmental effects on the received signal produce interference and impairments in the form of Bit Error Rate (BER). BER is defined as the ratio of the number of incorrect bits received versus the total number of bits. BER is estimated by the RBS on the reverse-link and by the MS on the forward-link. IS-136 does not state explicitly how the BER should be estimated but does specify the recommended accuracy for BER estimations. BER measures the effects of radio environment-introduced impairments which are discussed in the Speech Quality and Link Budget documents in this RF module.

Bit error rates are reported in Classes as shown in Table

The BER is estimated by comparing the detected bits (after deinterleaving) with the decoded bits that have been encoded. The BER Classes represent the BER before any forward error correction takes place.