bsc counters bsc level clear code measurement
TRANSCRIPT
BSC Counters: BSC Level ClearCode Measurement
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2003330Nokia BSC S10.5 ED, Vers. 2, ProductDocumentation
The information in this documentation is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for theuse of Nokia's customers only for the purposes of the agreement under which the documentationis submitted, and no part of it may be reproduced or transmitted in any form or means without theprior written permission of Nokia. The documentation has been prepared to be used byprofessional and properly trained personnel, and the customer assumes full responsibility whenusing it. Nokia welcomes customer comments as part of the process of continuous developmentand improvement of the documentation.
The information or statements given in this documentation concerning the suitability, capacity, orperformance of the mentioned hardware or software products cannot be considered binding butshall be defined in the agreement made between Nokia and the customer. However, Nokia hasmade all reasonable efforts to ensure that the instructions contained in the documentation areadequate and free of material errors and omissions. Nokia will, if necessary, explain issueswhich may not be covered by the documentation.
Nokia's liability for any errors in the documentation is limited to the documentary correction oferrors. NOKIA WILL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL(INCLUDING MONETARY LOSSES), that might arise from the use of this documentation or theinformation in it.
This documentation and the product it describes are considered protected by copyrightaccording to the applicable laws.
NOKIA logo is a registered trademark of Nokia Corporation.
Other product names mentioned in this documentation may be trademarks of their respectivecompanies, and they are mentioned for identification purposes only.
Copyright © Nokia Corporation 2003. All rights reserved.
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BSC Counters: BSC Level Clear Code Measurement
Contents
Contents 3
List of tables 4
List of figures 5
Summary of changes 7
1 BSC Counters: BSC Level Clear Code Measurement 9
2 Counters of Clear Code Measurement 11
Appendix A BSC Clear Codes and Phases 73
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Contents
List of tables
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List of figures
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List of figures
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BSC Counters: BSC Level Clear Code Measurement
Summary of changes
Summary of changes
Changes between document issues are cumulative. Therefore, the latest documentissue contains all changes made to previous issues.
Changes made between issues 5 and 4
1. Introduction
The following new counters added: 500370, 500628-500629, 500710-500720
2. Counters
The following new counters added: 500370, 500628-500629, 500710-500720
The information updated for the following counters: 500321, 500341
Changes made between issues 4 and 3
New counter added: 500627 (previously spare)
Changes made between issues 3 and 2
1. Counters
The following new counters added: 500405, 500936, 500937
Information on counter explanation corrected in the following counter: 500342
Information on counter updating corrected in the following counter: 500924
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Summary of changes
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BSC Counters: BSC Level Clear Code Measurement
1 BSC Counters: BSC Level Clear CodeMeasurement
The BSC clear code measurement registers statistics about clear codes for theBSC during calls.
The call-related DX causes give more detailed information on the conditionsinside the BSC than the GSM-defined cause values. Internal faults and timerexpiry cases can be observed with the help of DX causes. The DX causes showalso cases that are not observed in the MSC. They also include GSM causes whena network element other than the BSC initiates the clearing of the transaction.
BSC clear codes and phases are presented in Appendix BSC Clear Codes andPhases .
See also Call Related DX Causes in BSC .
For more information on the documentation of the counters, with an exampletable and an explanation of the table fields, see BSC Counters: GeneralInformation on Measurements and Observations .
Related topics
Counters of Clear Code Measurement
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2 Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500300
USER ACT BLOCK
S4
EXPLANATION Number of channels blocked by the user.
No
COUNTER NAME
RELEASE/CHANGED
500301
NETW ACT BLOCK
S4
EXPLANATION Number of channels blocked by the network.
No
COUNTER NAME
RELEASE/CHANGED
500302
BTS FAIL BLOCK
S4
EXPLANATION Number of channels blocked due to a BTS failure.
No
COUNTER NAME
RELEASE/CHANGED
500303
LAPD FAIL BLOCK
S4
EXPLANATION Number of channels blocked due to an LAPD failure.
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500304
ABIS FAIL BLOCK
S4
EXPLANATION Number of channels blocked due to a failure in the Abis interface.
No
COUNTER NAME
RELEASE/CHANGED
500305
ABIS MSG CORRUP TO BTS
S4
EXPLANATION Number of packages of the Abis interface message failures.
No
COUNTER NAME
RELEASE/CHANGED
500306
ASSIGN FAIL MSG
S4
EXPLANATION Number of ASSIGNMENT_ FAILURE messages which the Abisinterface receives from the MS during a basic call.
No
COUNTER NAME
RELEASE/CHANGED
500307
BLOCK SLAVE
S4
EXPLANATION Number of channels blocked due to a reason other than in counters500300-500304.
No
COUNTER NAME
RELEASE/CHANGED
500308
CH ACT NACK
S4
EXPLANATION Number of times the Abis interface receives aCHANNEL_ACTIVATION_ NACK message or the content of themessage has been corrupted.
UPDATED - When the Abis interface receives a CHANNEL_ACTIVATION_NACK message
- When the content of the received message is corrupted
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No
COUNTER NAME
RELEASE/CHANGED
500309
CH ACT NACK OM INTER
S4
EXPLANATION Number of CHANNEL_ ACTIVATION_NACK messages which theAbis interface receives due to O & M intervention.
No
COUNTER NAME
RELEASE/CHANGED
500310
CH ACT NACK EQUIP FAIL
S4
EXPLANATION Number of CHANNEL_ ACTIVATION_NACK messages which theAbis interface receives due to equipment failure.
No
COUNTER NAME
RELEASE/CHANGED
500311
CH ACT NACK ENCRYP ALG
S4
EXPLANATION Number of CHANNEL_ ACTIVATION_NACK messages which theAbis interface receives because the encryption algorithm is notsupported.
No
COUNTER NAME
RELEASE/CHANGED
500312
CH ACT NACK CH RAD ALR A
S4
EXPLANATION Number of CHANNEL_ ACTIVATION_NACK messages which theAbis interface receives because the radio channel has already beenallocated.
No
COUNTER NAME
RELEASE/CHANGED
500313
CH ACT NACK SERV NOT AVA
S4
EXPLANATION Number of CHANNEL_ ACTIVATION_NACK messages which theAbis interface receives because the service is not available.
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500314
CH ACT FAIL
S4
EXPLANATION Number of CHANNEL_ ACTIVATION_ACK messages received bythe Abis interface. The contents of the message are corrupted or atimer expires while waiting for the message.
No
COUNTER NAME
RELEASE/CHANGED
500315
CONN FAIL
S4
EXPLANATION Total number of CONNECTION_FAILURE messages.
UPDATED When the Abis interface receives a CONNECTION_FAILUREmessage.
No
COUNTER NAME
RELEASE/CHANGED
500316
CONN FAIL RAD INF FAIL
S4
EXPLANATION Number of CONNECTION_ FAILURE messages which the Abisinterface receives as a result of a failure in the radio interface.
UPDATED When the Abis interface receives a CONNECTION_FAILUREmessage and its cause is radio_interface_failure .
No
COUNTER NAME
RELEASE/CHANGED
500317
CONN FAIL RAD LINK FAIL
S4
EXPLANATION Number of CONNECTION_ FAILURE messages which the Abisinterface receives as a result of a radio link failure.
UPDATED When the Abis interface receives a CONNECTION_FAILUREmessage and its cause is radio_link_failure .
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No
COUNTER NAME
RELEASE/CHANGED
500318
CONN FAIL REM TRANS FAIL
S4
EXPLANATION Number of CONNECTION_ FAILURE messages which the Abisinterface receives due to a remote transcoder failure.
UPDATED When the Abis interface receives a CONNECTION_FAILUREmessage and its cause is remote_transcoder_failure .
No
COUNTER NAME
RELEASE/CHANGED
500319
DATA IND CORRUP
S4
EXPLANATION Number of DATA_INDICATION messages received by the Abisinterface. The contents of the message are corrupted.
No
COUNTER NAME
RELEASE/CHANGED
500320
ERR IND
S4
EXPLANATION Number of ERROR_ INDICATION messages received by the Abisinterface.
UPDATED When the Abis interface receives an ERROR_INDICATION message.
IMPACT Call cleared
No
COUNTER NAME
RELEASE/CHANGED
500321
ESTAB IND FAIL
S4
EXPLANATION Number of failed ESTABLISH_INDICATION message receptions. TheESTABLISH_INDICATION message is missing or comes too late,causing the timer to expire. (This refers to ghosts that are notrecognised in the counter 003030.)
UPDATED When the timer expires while waiting for theESTABLISH_INDICATION message
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500322
ESTAB CONF FAIL
S4
EXPLANATION Number of ESTABLISH_ CONFIRM messages received by the Abisinterface. The content of the message is corrupted or a timer expireswhile waiting for the message.
No
COUNTER NAME
RELEASE/CHANGED
500323
HO FAIL
S4
EXPLANATION Number of handover failures when the MS returns to the sourcechannel.
UPDATED When a handover fails and the MS returns to the source channel andsends an ASSIGNMENT_ FAILURE or a HANDOVER_FAILUREmessage to the network during the handover.
IMPACT HO failure
No
COUNTER NAME
RELEASE/CHANGED
500324
HO DETECT FAIL
S4
EXPLANATION Number of HO_DETECT messages the Abis interface receives. Thecontent of the message is corrupted or a timer expires while waitingfor the message.
UPDATED - When the content of the HO_DETECT message is corrupted.
- When a timer expires while waiting for the HO_DETECT message.
No
COUNTER NAME
RELEASE/CHANGED
500325
MODE MOD NACK
S4
EXPLANATION Number of MODE_MODIFY_ NACK messages received by the Abisinterface.
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No
COUNTER NAME
RELEASE/CHANGED
500326
MODE MOD ACK FAIL
S4
EXPLANATION Number of MODE_MODIFY_ ACK messages the Abis interfacereceives. The content of the message is corrupted or a timer expireswhile waiting for the message.
UPDATED - When the content of the MODE_MODIFY_ACK message iscorrupted.
- When a timer expires while waiting for the MODE_ MODIFY_ACKmessage.
No
COUNTER NAME
RELEASE/CHANGED
500327
NO MEAS RESULT
S4
EXPLANATION Number of missing MEASUREMENT_RESULT messages from theBTS.
No
COUNTER NAME
RELEASE/CHANGED
500328
NO RESP FROM COPRO
S4
EXPLANATION Number of times a timer expires because a co-process does notrespond. A BSC-internal failure.
REASON BSC-internal failure
No
COUNTER NAME
RELEASE/CHANGED
500329
PHY CONT CONF FAIL
S4
EXPLANATION Number of PHYSICAL_ CONTEXT_CONFIRM messages receivedby the Abis interface. The contents of the message are corrupted or atimer expires while waiting for the message.
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No
COUNTER NAME
RELEASE/CHANGED
500330
RCS ALG START ACK FAIL
S4
EXPLANATION Number of RCS_ALGORITHM_ START_ACK messages received bythe Abis interface. The content of the message is corrupted or a timerexpires while waiting for the message.
UPDATED When the timer expires while waiting for theRCS_ALGORITHM_START_ACK message.
REASON Signalling within the BSC.
No
COUNTER NAME
RELEASE/CHANGED
500331
RCS ALG CL ACK FAIL
S4
EXPLANATION Number of RCS_ALGORITHM_ CLEAR_ACK messages received bythe Abis interface. The content of the message is corrupted or a timerexpires while waiting for the message.
UPDATED When the timer expires while waiting for theRCS_ALGORITHM_CLEAR_ACK message.
REASON Signalling within the BSC.
No
COUNTER NAME
RELEASE/CHANGED
500332
RC0 DISCO IND
S4
EXPLANATION Number of RC0_ DISCONNECT_IND messages received by the Abisinterface from the RC0.
REASON Signalling within the BSC.
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No
COUNTER NAME
RELEASE/CHANGED
500333
RF CH REL ACK FAIL
S4
EXPLANATION Number of RF_CH_REL_ACK messages received by the Abisinterface. The content of the message is corrupted or a timer expireswhile waiting for the message.
No
COUNTER NAME
RELEASE/CHANGED
500334
REL IND
S4
EXPLANATION Number of RELEASE_ INDICATION messages received by the Abisinterface.
No
COUNTER NAME
RELEASE/CHANGED
500335
REL IND FAIL
S4
EXPLANATION Number of received RELEASE_ INDICATION messages. The contentof the message is corrupted or a timer expires while waiting for themessage.
No
COUNTER NAME
RELEASE/CHANGED
500336
SIGNALLING ERROR
S4
EXPLANATION Number of DTAP signalling failures.
No
COUNTER NAME
RELEASE/CHANGED
500337
STATE CONFLICT
S4
EXPLANATION Number of attempts to activate a blocked channel in the Abisinterface.
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No
COUNTER NAME
RELEASE/CHANGED
500338
TYPE CONFLICT
S4
EXPLANATION Number of attempts to activate a channel in the Abis interface with thewrong information.
No
COUNTER NAME
RELEASE/CHANGED
500339
FORCED REL
S4
EXPLANATION Number of forced releases of TCHs.
No
COUNTER NAME
RELEASE/CHANGED
500340
REJ GHOST RES
S4
EXPLANATION Number of rejected phantom reservations caused by the wrongestablishment cause in the CHANNEL_REQUIRED message fromthe MS, or a too long distance between the MS and the BTS.
No
COUNTER NAME
RELEASE/CHANGED
500341
OVERLOAD
S4
EXPLANATION Number of OVERLOAD messages from the BTS. BTS has sent aDELETE_INDICATION message to the BSC as a result of AG bufferoverflow. The SDCCH has been released by the BSC.
No
COUNTER NAME
RELEASE/CHANGED
500342
ABI SWITCHOVER
S4/S8
EXPLANATION Number of unsuccessful call setups during the BCSU switchover.
IMPACT Call setup failures
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No
COUNTER NAME
RELEASE/CHANGED
500343
SAPI 3 FAIL
S4
EXPLANATION Number of RELEASE_ INDICATION messages or corruptedESTABLISH_INDICATION messages which the Abis interfacereceives during the establishment of an SMS.
No
COUNTER NAME
RELEASE/CHANGED
500344
PAGING MSG FAIL
S4
EXPLANATION Number of MS_PAGING messages which the Abis interface receiveswhile the channel is blocked.
No
COUNTER NAME
RELEASE/CHANGED
500345
CH REQUIRED FAIL
S4
EXPLANATION Number of CHANNEL_REQUIRED messages received by the Abisinterface. The content of the message is corrupted.
No
COUNTER NAME
RELEASE/CHANGED
500346
MODE MOD NACK EQUIP FAIL
S4
EXPLANATION Number of MODE_MODIFY_ NACK messages which the Abisinterface receives due to equipment failure.
UPDATED The Abis interface receives a MODE_ MODIFY_NACK message withcause equipment_ failure .
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No
COUNTER NAME
RELEASE/CHANGED
500347
MODE MOD NACK TRC RAT UN
S4
EXPLANATION Number of MODE_MODIFY_ NACK messages which the Abisinterface receives because the requested transcoding or rateadaptation is not available.
UPDATED The Abis interface receives a MODE_ MODIFY_NACK message withthe cause requested_ transcoding/rate_adaption_not_available .
No
COUNTER NAME
RELEASE/CHANGED
500348
RRM SERV REQ NACK
S4
EXPLANATION Number of RRM_CH_SERV_ REQ_NACK messages received by theAbis interface.
REASON Signalling within the BSC.
No
COUNTER NAME
RELEASE/CHANGED
500349
CH MODE MOD FAIL
S4
EXPLANATION Number of CH_MODE_ MODIFY_ACK messages received by theAbis interface. The mode of the message is not the same as therequested mode.
No
COUNTER NAME
RELEASE/CHANGED
500350
ASSIGNMENT FAIL
S4
EXPLANATION Number of timer expiries due to late or missingASSIGNMENT_COMPLETE message.
UPDATED When the timer expires while waiting for theASSIGNMENT_COMPLETE message.
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No
COUNTER NAME
RELEASE/CHANGED
500351
DR FAIL
S4
EXPLANATION Number of failed directed retry procedures.
No
COUNTER NAME
RELEASE/CHANGED
500352
COPROCESS FAIL
S4
EXPLANATION Number of failures that have occurred in the co-process.
No
COUNTER NAME
RELEASE/CHANGED
500353
ERR REP ENC ALG NOT IMP
S4
EXPLANATION Number of ERROR_REPORT messages received from the BTSbecause the encryption algorithm is not implemented.
UPDATED When an ERROR_REPORT message is received from the BTS andthe cause is encryption_ algorithm_not_implemented .
No
COUNTER NAME
RELEASE/CHANGED
500354
ERROR REPORT
S4
EXPLANATION Number of ERROR_REPORT messages received from the BTS.
No
COUNTER NAME
RELEASE/CHANGED
500355
CH ACT NACK CH MODE ERR
S5
EXPLANATION Number of CHANNEL_ ACTIVATION_NACK messages received bythe Abis interface.
UPDATED When the cause for the failure is either not_implemented_unspecifiedor mandatory_ie_ error .
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500355
CH ACT NACK CH MODE ERR
S5
IMPACT The call may possibly be cleared
No
COUNTER NAME
RELEASE/CHANGED
500356
CH ACT NACK GEN IE ERR
S5
EXPLANATION Number of CHANNEL_ ACTIVATION_NACK messages received bythe Abis interface with cause general_ie_error .
IMPACT The call may possibly be cleared
No
COUNTER NAME
RELEASE/CHANGED
500357
SPEECH VERSION UNAVAIL
S5
UPDATED When the Abis interface receives an ASSIGNMENT_FAILURE orHANDOVER_FAILURE messages from the MS with the radioresource cause channel_mode_unacceptable .
IMPACT The call may possibly be cleared
HO failure
No
COUNTER NAME
RELEASE/CHANGED
500358
IGNORED DOUBLE RAND ACC
S6
EXPLANATION Number of ignored double random accesses in the extended cell.
UPDATED When two incoming random accesses have the same frame numberand, as a result, the latter one is ignored.
RELATED TO A FEATURE BSS6037 Improved Solution for Extended Cell
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No
COUNTER NAME
RELEASE/CHANGED
500359
RTSL_RECONF
S7
EXPLANATION Number of failed reconfigurations of a dynamic SDCCH.
UPDATED When the reconfiguration of a dynamic SDCCH resource is failed atthe time of an immediate assignment because all of the SDCCHresources under the control of the BCSU are already in use.
RELATED TO A FEATURE BSS7036 Dynamic SDCCH allocation
IMPACT Call cleared
No
COUNTER NAME
RELEASE/CHANGED
500360
HO INTERRUPTED
S7
EXPLANATION Number of interrupted HOs.
UPDATED When an assignment procedure is started before the MS is assignedto move to a new channel and the HO attempt is terminated withcause ho_interrupted .
IMPACT IMPACT: HO interrupted
No
COUNTER NAME
RELEASE/CHANGED
500361
DOWNGRADE WITH HSCSD
S7
EXPLANATION Number of channel releases caused by a downgrade.
UPDATED When the downgrade procedure is completed successfully.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT Channel release
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No
COUNTER NAME
RELEASE/CHANGED
500362
HO NOT STARTED
S7
EXPLANATION Number of rejected handover starts due to other ongoing procedures.
UPDATED When the handover start is rejected due to another ongoingprocedure.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT HO not allowed
No
COUNTER NAME
RELEASE/CHANGED
500363
CONF CHANGE NOT ALLOWED
S7
EXPLANATION Number of rejected upgrades, downgrades, subsequent assignmentsand ALAs due to other ongoing procedures.
UPDATED When the upgrade, downgrade or ALA is rejected due to anotherongoing procedure.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT The call may possibly be cleared
No
COUNTER NAME
RELEASE/CHANGED
500364
CONF CHANGE BTS FAIL
S7
EXPLANATION Number of failed configuration changes because the BTS sends aMODE_MODIFY_NACK message or the BTS does not answer at all.
UPDATED When the configuration change fails because the BTS sends aMODE_MODIFY_NACK message or the BTS does not answer at all.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT The call may possibly be cleared.
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No
COUNTER NAME
RELEASE/CHANGED
500365
CONF CHANGE MS FAIL
S7
EXPLANATION Number of failed configuration changes because the MS sends aCONFIGURATION_CHANGE_REJECT message or the MS does notanswer at all.
UPDATED When the configuration change fails because the MS rejects theconfiguration change or the MS does not answer at all.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT The call may possibly be cleared.
No
COUNTER NAME
RELEASE/CHANGED
500366
HSCSD COPRO FAIL
S7
EXPLANATION Number of channel releases caused by a failure in another channel inan HSCSD configuration.
UPDATED When a channel is released due to failure in another channel in anHSCSD configuration.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT The call may possibly be cleared.
No
COUNTER NAME
RELEASE/CHANGED
500367
SUB TIMER
S7
EXPLANATION Number of timer expiries because the subchannel is not responding tothe main channel in an HSCSD connection.
UPDATED When a timer expires because the subchannel does not respond tothe main channel in an HSCSD connection.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT Call cleared
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No
COUNTER NAME
RELEASE/CHANGED
500368
FORCED HO BLOCK
S7
EXPLANATION Number of blocked TCHs after a forced HO attempt. This counter ismapped to BSSMAP cause O_and_M_intervention (0x07).
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT Call cleared
No
COUNTER NAME
RELEASE/CHANGED
500369
UPGRADE FAIL
S7
EXPLANATION Number of upgrade procedure failures. This counter is mapped toBSSMAP cause equipment_failure (0x20).
UPDATED When the upgrade procedure fails.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
IMPACT Channel release
No
COUNTER NAME
RELEASE/CHANGED
500370
ESTAB IND CORRUPTED
S10
EXPLANATION Number of corrupted ESTABLISH_INDICATION messages receivedby the Abis interface.
UPDATED When the Abis interface receives an ESTABLISH_INDICATIONmessage with corrupted content.
No
COUNTER NAME
RELEASE/CHANGED
500371
SPARE
EXPLANATION Spare
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COUNTER NAME
RELEASE/CHANGED
500372
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500373
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500374
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500400
TIMING ADVANCE
S4
EXPLANATION Number of times the MS exceeds the cell boundaries.
UPDATED When the call is released after the distance between the MS and theBTS has reached the allowed maximum value, in other words, whenthe MS has exceeded the planned cell boundaries.
No
COUNTER NAME
RELEASE/CHANGED
500401
RRM SWITCH CRC POOL
S5
EXPLANATION Number of requests for changing the circuit pools in the A interface.
UPDATED When the RRM sets cause rrm_switch_ crc_pool in a messagerejecting a request for a TCH.
RELATED TO A FEATURE BSS5010 Half Rate
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500401
RRM SWITCH CRC POOL
S5
IMPACT - HO attempt fails
- An external HO for changing the circuit pools in the A interface ispossibly started.
REASON A interface
No
COUNTER NAME
RELEASE/CHANGED
500402
RRM SPEECH VER UNAVAIL
S6
EXPLANATION Number of requests for radio channel allocation that are rejectedbecause the requested speech coder versions are not supported bythe target BTS.
UPDATED When an Assignment or Handover Resource Allocation proceduresfails.
DEPENDENCIES 001011
RELATED TO A FEATURE BSS6071 Enhanced Full Rate Codec (ETSI)
IMPACT - Call attempt fails
- HO attempt fails
REASON BTS
No
COUNTER NAME
RELEASE/CHANGED
500403
RRM BTS NOT SUPPORTING
S7
EXPLANATION Number of requests for resources that are not supported by the BTS.This counter is mapped to BSSMAP cause requested_transcoding/rate_adaption_unavailable (0x30).
UPDATED When the BTS does not support the requested resources.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
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No
COUNTER NAME
RELEASE/CHANGED
500404
RRM MS NOT SUPPORTING
S7
EXPLANATION Number of requests for resources that are not supported by the MS.This counter is mapped to BSSMAP cause MS_not_equipped (0x26).
UPDATED When the MS does not support the requested resources.
RELATED TO A FEATURE BSS7003, BSS7037 HSCSD and 14.4 kbit/s data services
No
COUNTER NAME
RELEASE/CHANGED
500405
RRM INVALID CELL
S8
EXPLANATION Number of failed traffic channel allocations in an external handover.
UPDATED When a target cell is not controlled by the BSS.
DEPENDENCIES Two counters of the Handover measurement are incremented alongwith this DX cause:
- Number of unsuccessful handovers due to a lack of resources (newcell side) (004001).
- Number of unsuccessful handovers due to a lack of resources (oldcell side) (004055).
IMPACT HO failed
No
COUNTER NAME
RELEASE/CHANGED
500406
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500407
SPARE
EXPLANATION Spare
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500408
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500500
HO NOT ALLOWED
S4
EXPLANATION Number of external HOs that are not allowed.
UPDATED - When the HO is not allowed during a FACCH call setup
- When the external DR HO attempt fails because the external DRHOs are disabled.
- When all candidate cells for an inter-BSC HO are normal areas ofextended cells.
IMPACT The HO attempt fails
REASON BSC internal
No
COUNTER NAME
RELEASE/CHANGED
500501
NO RADIO RES AVAIL
S4
EXPLANATION Number of occurrences when there are no radio resources in the BTSfor channel reservation during HO signalling.
IMPACT HO attempt fails
REASON Congestion
No
COUNTER NAME
RELEASE/CHANGED
500502
RESTORE SOURCE
S4
EXPLANATION Not relevant.
UPDATED
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BSC Counters: BSC Level Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500502
RESTORE SOURCE
S4
DEPENDENCIES See counter 500323.
No
COUNTER NAME
RELEASE/CHANGED
500503
NO RESP FROM COPROCESS
S4
EXPLANATION Number of signalling failures in the internal processes during HOsignalling.
UPDATED When the internal timer of the HASPRB expires.
External HO source phase (0x09):
- waiting for internal message 9349 from the AIVPRB
- waiting for internal message 9368 from the AIVPRB
Internal BSC intra-cell target phase (0x0D):
- waiting for internal message 9354 from the ABIPRB
Internal BSC inter-cell (0x0E) and intra-cell (0x0D) target phases:
- waiting for internal message 2300 from the AIVPRB
- waiting for internal message 2336 from the AIVPRB
IMPACT - HO attempt fails
- Possible RF release (new BTS)
REASON BSC internal signalling.
No
COUNTER NAME
RELEASE/CHANGED
500504
NO RESP TO RADIO RES REQ
S4
EXPLANATION Number of failures in reserving a target channel during HO signalling.
UPDATED When the internal timer of the HASPRB expires. Target channelreservation has failed during HO signalling. No answer to the radioresource request.
IMPACT HO attempt fails
REASON BSC internal signalling.
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500505
HAS STATE CONFLICT C
S4
EXPLANATION Number of signalling failures in the internal processes during HOsignalling.
UPDATED When the internal timer of the HASPRB expires: waiting for internalmessage 9408 from the ABIPRB
IMPACT - HO attempt fails
- Channel release (new channel)
REASON BSC internal signalling.
No
COUNTER NAME
RELEASE/CHANGED
500506
CLEAR CMD NOT RECEIVED
S4
EXPLANATION Number of times when no CLEAR_COMMAND message is receivedfrom the A interface during external source HO signalling.
UPDATED When the GSM timer T8 expires in the source BSC during an externalHO.
IMPACT - HO attempt fails
- Call is cleared
REASON MS, new BSS, MSC
No
COUNTER NAME
RELEASE/CHANGED
500507
MS IS LOST
S4
EXPLANATION Number of lost MSs after a HANDOVER/ASSIGNMENT commandduring handovers.
UPDATED - When one of the GSM timers T3107, T3103 or T9113 expires
- When an internal message 9472 is not received from the AIVPRBand the timer of the HASPRB expires
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No
COUNTER NAME
RELEASE/CHANGED
500507
MS IS LOST
S4
DEPENDENCIES - In BSC-internal HOs the new channel is cleared
- With cause 500511.
- In external HOs the old channel is cleared with cause value set bythe MSC.
IMPACT - HO attempt fails.
- Call is cleared.
REASON MS, BSS
No
COUNTER NAME
RELEASE/CHANGED
500508
NO RESP TO HO CPL MSG
S4
EXPLANATION Number of signalling failures in the internal processes during HOsignalling.
UPDATED - Internal timer of the HASPRB expires.
- Waiting for internal message 9472 from the AIVPRB.
DEPENDENCIES - In BSC-internal HOs the new channel is cleared with cause 500511.
- In external HOs the old channel is cleared with cause value set bythe MSC.
IMPACT - HO attempt fails
- Call is cleared.
REASON BSC internal signalling.
No
COUNTER NAME
RELEASE/CHANGED
500509
HAS SWITCHOVER
S4
EXPLANATION Number of HOs that have failed after the switchover has started.
UPDATED When the unit switchover has started during a HO before the BSC hassent the HANDOVER/ASSIGNMENT command to the MS.
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No
COUNTER NAME
RELEASE/CHANGED
500509
HAS SWITCHOVER
S4
IMPACT - HO attempt fails.
- Possible channel release (new channel).
- Possible RF release (new BTS).
REASON BSC-internal.
No
COUNTER NAME
RELEASE/CHANGED
500510
TARGET FAIL
S4
EXPLANATION Not relevant.
No
COUNTER NAME
RELEASE/CHANGED
500511
SOURCE FAIL
S4
EXPLANATION Number of failures on the source channel during HOs.
UPDATED - When there is a failure in the source channel before the BSC hassent a HANDOVER/ ASSIGNMENT command to the MS.
- When one of the GSM timers T3107 or T3103 expires.
- When the internal message 9472 is not received from the AIVPRBand the internal timer of the HASPRB expires.
- When the HO is not completed (for example, the switching of the bi-directional speech path fails in the A interface).
IMPACT - HO attempt fails
- Call is cleared.
REASON MS, BSS
No
COUNTER NAME
RELEASE/CHANGED
500512
HAS CALL CONTROL
S4
EXPLANATION Number of failures for the master to create a hand.
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No
COUNTER NAME
RELEASE/CHANGED
500512
HAS CALL CONTROL
S4
UPDATED When the master of the HASPRB fails to reserve a new hand for theHO attempt.
IMPACT HO attempt fails.
REASON BSC internal.
No
COUNTER NAME
RELEASE/CHANGED
500513
ADJ CELL ID ERR
S4
EXPLANATION Number of interrupted HO attempts.
UPDATED When the BSC notices that the target cell information on the BCCHfrequency or/and BSIC, received in the HANDOVER_COMMANDmessage from the MSC, is not correct.
NOTE! This counter indicates that the information on the adjacentcells is incorrect in the BSDATA (BSS Radio Network ConfigurationDatabase).
IMPACT HO attempt fails.
REASON BSS Radio Network Configuration Database.
No
COUNTER NAME
RELEASE/CHANGED
500514
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500515
SPARE
EXPLANATION Spare
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500516
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500517
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500518
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500519
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500520
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500521
SPARE
EXPLANATION Spare
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BSC Counters: BSC Level Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500522
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500523
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500524
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500600
AIV HAND ACT FAIL
S4
EXPLANATION Number of failures to activate a hand process in the AIVPRB master.
UPDATED When the AIVPRB master fails to create a hand process for the call.
IMPACT Call attempt fails
No
COUNTER NAME
RELEASE/CHANGED
500601
AIV SSP
S4
EXPLANATION Number of failures to establish an SCCP connection because thesubsystem is in the prohibited status.
UPDATED When the AIVPRB rejects the call attempt because the MSC is notreachable.
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No
COUNTER NAME
RELEASE/CHANGED
500601
AIV SSP
S4
IMPACT Call attempt fails
No
COUNTER NAME
RELEASE/CHANGED
500602
SCCP CONN FAIL
S4
EXPLANATION Number of failures to establish an SCCP connection.
UPDATED When a CREF message is received from the MSC.
IMPACT Call attempt fails
No
COUNTER NAME
RELEASE/CHANGED
500603
SCCP CONN TIMEOUT
S4
EXPLANATION Number of failures to receive an acknowledgement from the MSC tothe request for establishing an SCCP connection.
UPDATED When the GSM timer T9105 expires.
IMPACT Call attempt fails
No
COUNTER NAME
RELEASE/CHANGED
500604
SCCP RELEASE
S4
EXPLANATION Number of abnormal releases of the SCCP connection.
UPDATED Whenever the MSC clears a call by releasing the SCCP connectionwithout first clearing the upper layers (BSSMAP).
IMPACT Call dropped
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BSC Counters: BSC Level Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500605
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500606
GLOBAL RESET
S4
EXPLANATION Number of calls cleared due to global resets.
UPDATED - When the state of a SCCP subsystem changes so that the MSCbecomes unattainable
- When a reset message is received from the MSC
IMPACT Call dropped
No
COUNTER NAME
RELEASE/CHANGED
500607
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500608
NO DTAP FROM MSC
S4
EXPLANATION Number of times when no DTAP message is received from the MSCafter a successful establishment of the SCCP.
UPDATED When the SCCP connection is established without user data in theCR and CC messages and a timer that supervises the reception offurther messages from the MSC expires.
IMPACT Call attempt fails
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500609
HO DENIED ASSIGN
S4
EXPLANATION Number of times when the HO is not allowed to be started because anassignment procedure is in progress.
UPDATED When the HO attempt is interrupted.
IMPACT HO attempt interrupted
No
COUNTER NAME
RELEASE/CHANGED
500610
HO DENIED CIPHERING
S4
EXPLANATION Number of times when the HO is not allowed to be started becausethe ciphering procedure is in progress.
UPDATED When the HO attempt is interrupted.
IMPACT HO attempt interrupted
No
COUNTER NAME
RELEASE/CHANGED
500611
HO DENIED CLEAR
S4
EXPLANATION Number of times when the HO is not allowed to be started becausethe call clearing procedure is in progress.
UPDATED When the HO attempt is interrupted.
IMPACT HO attempt interrupted
No
COUNTER NAME
RELEASE/CHANGED
500612
HO DENIED NO SCCP CONN
S4
EXPLANATION Number of times when the external SDCCH HO is not allowed to bestarted because the establishment of the SCCP connection is inprogress.
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No
COUNTER NAME
RELEASE/CHANGED
500612
HO DENIED NO SCCP CONN
S4
UPDATED When the HO attempt is interrupted.
IMPACT HO attempt interrupted
No
COUNTER NAME
RELEASE/CHANGED
500613
T7 EXPIRE
S4
EXPLANATION Number of expiries of the GSM timer T7.
UPDATED When the HO attempt is interrupted.
IMPACT HO attempt interrupted
No
COUNTER NAME
RELEASE/CHANGED
500614
T10 EXPIRE
S4
EXPLANATION Number of expiries of the GSM timer T10 that causes the call to becleared by the MSC.
UPDATED When the call is cleared.
IMPACT The assignment procedure fails on the A interface. The call / callattempt is likely to be cleared by the MSC.
No
COUNTER NAME
RELEASE/CHANGED
500615
AIV CRCT RES TIMEOUT
S4
EXPLANATION Number of timeouts in the AIVPRB that are related to allocating an Ainterface speech circuit.
UPDATED When the call is cleared or the HO attempt fails.
IMPACT Call / HO attempt fails.
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No
COUNTER NAME
RELEASE/CHANGED
500616
AIV CRCT CONN TIMEOUT
S4
EXPLANATION Number of timeouts in the AIVPRB that are related to connecting an Ainterface speech circuit.
UPDATED When the call is cleared or the HO attempt fails.
IMPACT Call / HO attempt fails
No
COUNTER NAME
RELEASE/CHANGED
500617
AIV CRCT DISCONN TIMEOUT
S4
EXPLANATION Number of timeouts in the AIVPRB that are related to disconnectingan A interface speech circuit.
No
COUNTER NAME
RELEASE/CHANGED
500618
AIV CRCT REL TIMEOUT
S4
EXPLANATION Number of timeouts in the AIVPRB that are related to releasing an Ainterface speech circuit.
No
COUNTER NAME
RELEASE/CHANGED
500619
AIV TIMEOUT
S4
EXPLANATION Number of timeouts in the AIVPRB that are related to the internalcommunication of the BSC.
No
COUNTER NAME
RELEASE/CHANGED
500620
ACT CTRL TIMEOUT
S4
EXPLANATION Number of expiries of the BSC-internal supervision timer whichsupervises the communication between the Abis and the A interfaces.
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No
COUNTER NAME
RELEASE/CHANGED
500620
ACT CTRL TIMEOUT
S4
UPDATED When the call is cleared.
IMPACT Call dropped
No
COUNTER NAME
RELEASE/CHANGED
500621
INVALID BSSMAP MSG
S4
EXPLANATION Number of the times when a corrupted message received from theMSC results to a clearing of the call.
IMPACT Call dropped
No
COUNTER NAME
RELEASE/CHANGED
500622
UNKNOWN A PCM
S4
EXPLANATION Number of messages received that concern an unknown PCMmultiplex in the A interface.
No
COUNTER NAME
RELEASE/CHANGED
500623
HO DENIED NO PROPER CRC
S4
EXPLANATION Number of HO enquiries that are rejected because there are nocircuits available.
UPDATED When the AIVPRB receives a handover request from the HASPRBwith cause switch_ circuit_pool and no A interface circuit matchesthose in the pool list of the enquiry.
IMPACT HO attempt interrupted
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500624
CH TYPE MISMATCH
S5
EXPLANATION The radio interface data rate requirement, included in the normalASSIGNMENT_REQUESTor the HANDOVER_REQUEST message,is totally contradictory with the TCH channel rate request of thechannel type IE.
The TCH channel rate request, or the data rate requirement, includedin the ASSIGNMENT_REQUEST message related to theIN_CALL_MODIFICATION message or the FACCH call setup, istotally contradictory with the type of the TCH on which the call ismaintained.
UPDATED When the above mentioned conditions are fulfilled during theassignment or the HO resource allocation procedures.
IMPACT The assignment procedure fails on A interface, or in case of ahandover the handover attempt fails.
No
COUNTER NAME
RELEASE/CHANGED
500625
AIV TRANSC OR RATE UNAVA
S5
EXPLANATION Number of assignment or HO requests that have failed because therequested TCH type is not supported by the A interface pools.
No
COUNTER NAME
RELEASE/CHANGED
500626
AIV SPEECH VERSION UNAVA
S5
EXPLANATION Number of assignment or HO requests that are rejected because therequested speech coder versions are not supported.
IMPACT The assignment procedure or HO attempt fails.
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No
COUNTER NAME
RELEASE/CHANGED
500627
AIV PAGING REFUSED BIG LOAD
S9
EXPLANATION This counter is updated when a PAGING message is received fromthe MSC and there is a too heavy load in the same BCSU unit. Theheavy load is observed using the amount of unhandled messages inthe unit.
UPDATED When bsc_dx_cause 627 is set because of too many unhandledmessages in the BCSU unit.
No
COUNTER NAME
RELEASE/CHANGED
500628
AIV CONN REFRESH TIMEOUT
S10
EXPLANATION The A interface connection is refreshed from time to time during a call.This counter indicates that the timer for the connection refreshprocedure has expired.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call cleared.
No
COUNTER NAME
RELEASE/CHANGED
500629
AIV CONN REFRESH FAILED
S10
EXPLANATION The A interface connection is refreshed from time to time. Thiscounter indicates that the connection refresh procedure has failed.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call cleared.
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No
COUNTER NAME
RELEASE/CHANGED
500630
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500631
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500632
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500633
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500634
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500635
SPARE
EXPLANATION Spare
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BSC Counters: BSC Level Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500636
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500637
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500638
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500639
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500700
RC0 HAND ACT FAIL
S4
EXPLANATION Number of failures of the RC0PRB master to activate a hand process.
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500701
A CRCT ALR RES
S4
EXPLANATION Number of assignments of a speech circuit which has already beenallocated.
No
COUNTER NAME
RELEASE/CHANGED
500702
A CRCT CONN ERR
S4
EXPLANATION Number of connection errors in the Marker and Cellular ManagementUnit (MCMU) while a speech circuit in the A interface is beingconnected.
No
COUNTER NAME
RELEASE/CHANGED
500703
RC0 CRCT CONN TIMEOUT
S4
EXPLANATION Number of timeouts in the RC0PRB during connections of an Ainterface speech circuit.
No
COUNTER NAME
RELEASE/CHANGED
500704
ACCESS OUT OF CRCT TBL
S4
EXPLANATION Number of failures in finding the requested speech circuit in the circuitcontrol table.
No
COUNTER NAME
RELEASE/CHANGED
500705
A CRCT REL ERR
S4
EXPLANATION Number of circuit release errors in the Marker when an A interfacespeech circuit is released.
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No
COUNTER NAME
RELEASE/CHANGED
500706
RC0 TRANSC OR RATE UNAVA
S5
EXPLANATION Number of requests for a channel rate that are rejected because thecircuit pool defined in the request has not been defined in the Ainterface.
No
COUNTER NAME
RELEASE/CHANGED
500707
RC0 CIP TYPE MISMATCH
S5
UPDATED - When the circuit type in the A interface is contradictory with the TCHchannel rate requirement.
- When the data rate requirement implies the circuit pool change.
No
COUNTER NAME
RELEASE/CHANGED
500708
RC0 INV MSG CONTENTS
S5
UPDATED When the radio interface data rate requirement is contradictory withthe circuit pool configuration in the A interface.
No
COUNTER NAME
RELEASE/CHANGED
500709
RC0 REQ SPEECH VER UNAVA
S6
EXPLANATION Number of times the BSC has received either anASSIGNMENT_REQUEST or a HANDOVER_REQUEST messagecontaining speech codec versions, none of which are supported bythe BSC.
RELATED TO A FEATURE BSS6071 Enhanced Full Rate Codec (ETSI)
IMPACT Call attempt fails
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500710
RC0 HUNTING QUEUE FULL
S10
EXPLANATION Number of times when there is no free place for the call in the huntingqueue.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call attempt fails.
No
COUNTER NAME
RELEASE/CHANGED
500711
RC0 CRCT CONGESTION
S10
EXPLANATION Number of times when there is no free circuit for the call.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call attempt fails.
No
COUNTER NAME
RELEASE/CHANGED
500712
RC0 A SEARCH ERROR
S10
EXPLANATION Number of times when the content of the hunting request message isinvalid.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call attempt fails.
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No
COUNTER NAME
RELEASE/CHANGED
500713
RC0 CRCT POOL MISMATCH
S10
EXPLANATION Number of times when the hunted circuit is from the wrong circuit pool.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call attempt fails.
No
COUNTER NAME
RELEASE/CHANGED
500714
RC0 REJ DUE EME CALL
S10
EXPLANATION Number of times when the hunting queue is full and an emergencycall has taken priority over an ordinary call.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call attempt fails.
No
COUNTER NAME
RELEASE/CHANGED
500715
RC0 ILC FILE ERROR
S10
EXPLANATION Number of times when there is no pool available on the hunting list.
RELATED TO A FEATURE BSS10005 Reversed Hunting
DEPENDENCIES Counters 001078, 001079, 001080, 001087, 001088 and 001089 areupdated with this counter.
IMPACT Call attempt fails.
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500716
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500717
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500718
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500719
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500720
SPARE
EXPLANATION Spare
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No
COUNTER NAME
RELEASE/CHANGED
500800
A TSL USER MISMATCH
S4
EXPLANATION Number of requests to connect, disconnect, or release a speechcircuit that are received from a process which is not recorded as auser of the circuit in the SC7PRB's internal control tables.
No
COUNTER NAME
RELEASE/CHANGED
500801
SC7 CRCT RES TIMEOUT
S4
EXPLANATION Number of timeouts in the SC7PRB while allocating a speech circuit inthe A interface.
No
COUNTER NAME
RELEASE/CHANGED
500802
SC7 CRCT CONN TIMEOUT
S4
EXPLANATION Number of timeouts in the SC7PRB while connecting a speech circuitin the A interface.
No
COUNTER NAME
RELEASE/CHANGED
500803
SC7 CRCT DISCONN TIMEOUT
S4
EXPLANATION Number of timeouts in the SC7PRB while disconnecting a speechcircuit in the A interface.
No
COUNTER NAME
RELEASE/CHANGED
500804
SC7 CRCT REL TIMEOUT
S4
EXPLANATION Number of timeouts in the SC7PRB while releasing a speech circuit inthe A interface.
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No
COUNTER NAME
RELEASE/CHANGED
500805
A TSL BLOCKED
S4
EXPLANATION Number of assignments of a circuit that is blocked.
No
COUNTER NAME
RELEASE/CHANGED
500806
A TSL STATUS UNKNOWN
S4
EXPLANATION Number of assignments of a circuit with unknown status.
No
COUNTER NAME
RELEASE/CHANGED
500807
LSI ACCESS FAIL
S4
EXPLANATION Number of failures to access the LSINGL file.
No
COUNTER NAME
RELEASE/CHANGED
500808
SCC ACCESS FAIL
S4
EXPLANATION Number of failures to access the SCCTST file.
No
COUNTER NAME
RELEASE/CHANGED
500809
UNDEF TSL IN LSI
S4
EXPLANATION Number of failures to find the circuit concerned because it is notdefined in the LSIGNL file.
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No
COUNTER NAME
RELEASE/CHANGED
500810
CRCT EQUIPMENT FAIL
S4
EXPLANATION Number of failures which the SC7PRB has tracked down to hardwareproblems.
No
COUNTER NAME
RELEASE/CHANGED
500811
RESET CRCT
S4
EXPLANATION Number of RESET_CIRCUIT messages received from the MSC.
No
COUNTER NAME
RELEASE/CHANGED
500812
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500813
SC7 SSP
S4
EXPLANATION Number of the errors due to status SCCP prohibited .
UPDATED When the status has been detected by the SC7PRB.
No
COUNTER NAME
RELEASE/CHANGED
500814
SPARE
EXPLANATION Spare
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500815
A PCM FAULT
S4
EXPLANATION Number of faults detected in the 2 Mbit PCM connection.
No
COUNTER NAME
RELEASE/CHANGED
500816
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500817
A CRCT REMOVED
S4
EXPLANATION Number of speech circuits that have been removed from use.
No
COUNTER NAME
RELEASE/CHANGED
500818
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500819
A ET STATE CHANGE
S4
EXPLANATION Number of state changes in the ET.
No
COUNTER NAME
RELEASE/CHANGED
500820
SPARE
EXPLANATION Spare
58 (74) # Nokia CorporationNokia Proprietary and Confidential
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No
COUNTER NAME
RELEASE/CHANGED
500821
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500822
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500823
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500824
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500825
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500826
SPARE
EXPLANATION Spare
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No
COUNTER NAME
RELEASE/CHANGED
500827
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500828
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500829
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500900
M RADIO IF MESS FAIL
S4
EXPLANATION Number of messages received from the MSC that indicate failures ofthe radio interface.
UPDATED When the cause value is 0x00
No
COUNTER NAME
RELEASE/CHANGED
500901
M RADIO IF FAIL
S4
EXPLANATION Number of messages received from the MSC that indicate failures ofthe radio interface.
UPDATED When the cause value is 0x0
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No
COUNTER NAME
RELEASE/CHANGED
500902
M UPLINK QUALITY
S4
EXPLANATION Number of messages received from the MSC that concern the uplinkquality .
UPDATED When the cause value is 0x02.
No
COUNTER NAME
RELEASE/CHANGED
500903
M UPLINK STRENGTH
S4
EXPLANATION Number of messages received from the MSC that concern thestrength of the uplink signal.
UPDATED When the cause value is 0x03.
No
COUNTER NAME
RELEASE/CHANGED
500904
M DOWNLINK QUALITY
S4
EXPLANATION Number of messages received from the MSC that concern thedownlink quality.
UPDATED When the cause value is 0x04.
No
COUNTER NAME
RELEASE/CHANGED
500905
M DOWNLINK STRENGTH
S4
EXPLANATION Number of messages received from the MSC that concern thestrength of the downlink signal.
UPDATED When the cause value is 0x05.
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No
COUNTER NAME
RELEASE/CHANGED
500906
M DISTANCE
S4
EXPLANATION Number of messages received from the MSC that concern thedistance between the MS and the BTS.
UPDATED When the cause value is 0x06.
No
COUNTER NAME
RELEASE/CHANGED
500907
M O AND M INTER
S4
EXPLANATION Number of messages received from the MSC that concern O&Mintervention.
UPDATED When the cause value is 0x07.
No
COUNTER NAME
RELEASE/CHANGED
500908
M RESP TO MSC INVOC
S4
EXPLANATION Number of messages received from the MSC that concern theresponses to invocations from the MSC.
UPDATED When the cause value is 0x08.
No
COUNTER NAME
RELEASE/CHANGED
500909
M CALL CONTROL
S4
EXPLANATION Number of messages received from the MSC that concern callcontrol.
UPDATED When the cause value is 0x09.
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No
COUNTER NAME
RELEASE/CHANGED
500910
M R IF F REV TO SOURCE
S4
EXPLANATION Number of messages received from the MSC that concern the returnto the source channel due to a radio interface failure.
UPDATED When the cause value is 0x0A.
No
COUNTER NAME
RELEASE/CHANGED
500911
M HANDOVER SUCC
S4
EXPLANATION Number of messages received from the MSC that concern successfulHOs.
UPDATED When the cause value is 0x0B.
No
COUNTER NAME
RELEASE/CHANGED
500912
M BETTER CELL
S4
EXPLANATION Number of messages received from the MSC that concern a bettercell.
UPDATED When the cause value is 0x0C.
No
COUNTER NAME
RELEASE/CHANGED
500913
M DIRECTED RETRY
S4
EXPLANATION Number of messages received from the MSC that concern directedretry.
UPDATED When the cause value is 0x0D.
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No
COUNTER NAME
RELEASE/CHANGED
500914
M EQUIPMENT FAIL
S4
EXPLANATION Number of messages received from the MSC that concern equipmentfailures.
UPDATED When the cause value is 0x20.
No
COUNTER NAME
RELEASE/CHANGED
500915
M NO RADIO RES AVAIL
S4
EXPLANATION Number of messages received from the MSC which report that thereare no radio resources available.
UPDATED When the cause value is 0x21.
No
COUNTER NAME
RELEASE/CHANGED
500916
M REQ TERR RES UNAVA
S4
EXPLANATION Number of messages received from the MSC which report that therequested terrestrial channel is not available.
UPDATED When the cause value is 0x22.
No
COUNTER NAME
RELEASE/CHANGED
500917
M CCH OVERLOAD
S4
EXPLANATION Number of messages received from the MSC that concern CCCHoverload.
UPDATED When the cause value is 0x23.
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No
COUNTER NAME
RELEASE/CHANGED
500918
M PROCESSOR OVERLOAD
S4
EXPLANATION Number of messages received from the MSC that concern processoroverload.
UPDATED When the cause value is 0x24
No
COUNTER NAME
RELEASE/CHANGED
500919
M BSS NOT EQUIPPED
S4
EXPLANATION Number of messages received from the MSC which report that theBSS is not equipped.
UPDATED When the cause value is 0x25.
No
COUNTER NAME
RELEASE/CHANGED
500920
M MS NOT EQUIPPED
S4
EXPLANATION Number of messages received from the MSC which report that the MSis not equipped.
UPDATED When the cause value is 0x26.
No
COUNTER NAME
RELEASE/CHANGED
500921
M TR COD RAT AD UNAV
S4
EXPLANATION Number of messages received from the MSC which report that therequested transcoding or rate adaptation is not available.
UPDATED When the cause value is 0x30.
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500922
M CIPH ALG NOT SUPP
S4
EXPLANATION Number of messages received from the MSC which report that theciphering algorithm is not supported.
UPDATED When the cause value is 0x40.
No
COUNTER NAME
RELEASE/CHANGED
500923
M TERR CHAN ALR ALLC
S4
EXPLANATION Number of messages received from the MSC which report thefollowing events:
UPDATED - When the requested terrestrial circuit is already allocated (causevalue 0x50)
- When the contents of the message are invalid (cause value 0x51)
- When there is an information element or field missing (cause value0x52)
- When there is an incorrect value in the message (cause value 0x53)
- When the message is unknown
(cause value 0x54)
- When there is an unknown information element in the message(cause value 0x55)
No
COUNTER NAME
RELEASE/CHANGED
500924
M PROT ERR B BSC MSC
S4
EXPLANATION Number of messages received from the MSC which report protocolerror between the BSC and the MSC.
UPDATED If the BSC detects a failure which causes the call to be cleared or if theMSC sends a clear command during a non-transparent procedure.
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No
COUNTER NAME
RELEASE/CHANGED
500925
M UNEXPECTED
S4
EXPLANATION Number of messages received from the MSC which reportunexpected failures.
No
COUNTER NAME
RELEASE/CHANGED
500926
M INVALID CELL
S4
EXPLANATION Number of messages received from the MSC which report an invalidcell.
UPDATED When the cause value is 0x27
No
COUNTER NAME
RELEASE/CHANGED
500927
M INVALID MSG CONT
S4
EXPLANATION Number of messages received from the MSC which report invalidcontents of the message.
UPDATED When the cause value is 0x51.
No
COUNTER NAME
RELEASE/CHANGED
500928
M IE OR FIELD MISSING
S4
EXPLANATION Number of messages received from the MSC which report that thereis an information element or field missing.
UPDATED When the cause value is 0x52.
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500929
INCORRECT VALUE
S4
EXPLANATION Number of messages received from the MSC which report anincorrect value.
UPDATED When the cause value is 0x53.
No
COUNTER NAME
RELEASE/CHANGED
500930
UNKNOWN MSG TYPE
S4
EXPLANATION Number of messages received from the MSC which report anunknown message type.
UPDATED When the cause value is 0x54.
No
COUNTER NAME
RELEASE/CHANGED
500931
UNKNOWN IE
S4
EXPLANATION Number of messages received from the MSC which report anunknown information element.
UPDATED When the cause value is 0x55.
No
COUNTER NAME
RELEASE/CHANGED
500932
M TRANSC OR RATE UNAVAIL
S5
EXPLANATION Number of messages received from the MSC which report that therequested transcoding or rate adaptation is not available.
UPDATED When the cause value is 0x30.
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No
COUNTER NAME
RELEASE/CHANGED
500933
M CIP TYPE MISMATCH
S5
EXPLANATION Number of messages received from the MSC which report that thereis a circuit pool mismatch.
UPDATED When the cause value is 0x31
No
COUNTER NAME
RELEASE/CHANGED
500934
M SWITCH CRC POOL
S5
EXPLANATION Number of messages received from the MSC which report circuit poolswitch.
UPDATED When the cause value is 0x32.
No
COUNTER NAME
RELEASE/CHANGED
500935
M SPEECH VERSION UNAVAIL
S5
EXPLANATION Number of messages received from the MSC which report that therequested speech version is unavailable.
UPDATED When the cause value is 0x31.
No
COUNTER NAME
RELEASE/CHANGED
500936
M PRE EMPTION
S8
EXPLANATION Number of messages received from the MSC which report pre-emption
UPDATED When the cause value is 0x29
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Counters of Clear Code Measurement
No
COUNTER NAME
RELEASE/CHANGED
500937
M TRAFFIC
S8
EXPLANATION Number of messages received from the MSC which report causetraffic
UPDATED When the cause value is 0x0F
No
COUNTER NAME
RELEASE/CHANGED
500938
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500939
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500940
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500941
SPARE
EXPLANATION Spare
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No
COUNTER NAME
RELEASE/CHANGED
500942
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500943
SPARE
EXPLANATION Spare
No
COUNTER NAME
RELEASE/CHANGED
500944
SPARE
EXPLANATION Spare
Related topics
BSC Counters: BSC Level Clear Code Measurement
Appendix: BSC Clear Codes and Phases
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Appendix A BSC Clear Codes and Phases
DEC HEX PHASE
1 0x1 Paging/Initial MS
(CCCH and SDCCH or TCH)
2 0x2 MM signalling
(SDCCH or TCH)
3 0x3 Basic assignment
(SDCCH or TCH)
4 0x4 Release
(SDCCH or TCH)
5 0x5 FACCH assignment
(TCH)
6 0x6 SMS establishment
(TCH)
7 0x7 SMS establishment
(SDCCH)
8 0x8 Ciphering
(SDCCH or TCH)
9 0x9 External HO
(SDCCH or TCH, source)
10 0xA Internal HO Intra
(SDCCH or TCH, source)
11 0xB Internal HO Inter
(SDCCH or TCH, source)
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BSC Clear Codes and Phases
12 0xC External HO
(SDCCH or TCH, target)
13 0xD Internal HO Intra
(SDCCH or TCH, target)
14 0xE Internal HO Inter
(SDCCH or TCH, target)
15 0xF Conversation.
Related topics
BSC Counters: BSC Level Clear Code Measurement
Counters of Clear Code Measurement
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