WCDMA RNO Parameters Optimization
For Engineers who want to learn WCDMA RNO Parameters Optimization
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WCDMA PS Service Optimization Guide
Packet Service Optimization WCDMA
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WCDMA For UMTS
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Written by the leading experts in the field, the best selling book on UMTS is now updated to cover 3GPP High Speed Packet Access (HSPA) evolution (HSPA+) in Release 7 and on-going Long Term Evolution (LTE) activity for Release 8.
These technologies enhance the capabilities of the existing WCDMA/HSPA networks to offer higher data rates beyond 100 Mbps.
WCDMA for UMTS, Fourth Edition also covers 3GPP WCDMA Release 99, High Speed Downlink Packet Access (HSDPA) in Release 5 and High Speed Uplink Packet Access (HSUPA) in Release 6, which are already deployed commercially.
Multimedia Broadcast Multicast System (MBMS) is also described in detail.
Key updates include:
* Continues to provide both updated descriptions of the 3GPP standard as well as the latest end user and system performance estimates
* Updated HSDPA and HSUPA, including link budgets and Iub dimensioning
* Detailed MBMS description
* 3GPP Release 7 HSPA evolution full description
* 3GPP Release 8 LTE overall description and 3GPP schedule
* Dedicated chapter on terminal design challenges for the new high speed radio technologies
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Ericsson Counter RAB
RAB - Radio Access Bearer
pmSumCs12RabEstablish a snapshot of the total number of currently active speech 12.2 kbit RAB connections is recorded once every 5 seconds. This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs12RabEstablish Number of samples recorded within the ROP period for number of active speech 12.2 kbit RAB. pmSumCs12RabEstablish/pmSamplesCs12RabEstablish gives the average number of single CS12 RABs which were active during a ROP period.
pmSumCs64RabEstablish a snapshot of the total number of currently active speech 64 kbitRAB connections is recorded once every 5 seconds. This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs64RabEstablish Number of samples recorded within the ROP period for number of conversational 64 kbit RAB. pmSumCs64RabEstablish/pmSamplesCs64RabEstablish gives the average number of single CS64 RABs which were active during a ROP period.
pmSumCs57RabEstablish a snapshot of the total number of currently active CS 57 RABs connections is recorded once every 5 seconds.This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs57RabEstablish Number of samples recorded within the ROP period for number of CS 57 RABs. pmSumCs57RabEstablish/pmSamplesCs57RabEstablish gives the average number of single CS57 RABs which were active during a ROP period.
pmSumCs12Ps64RabEstablish a snapshot of the total number of currently active speech CS plus 64/64 connections PS multiRAB. It is recorded once every 5 seconds.This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs12Ps64RabEstablish Number of samples recorded within the ROP period for number of speech CS plus 64/64 PS multi RAB. pmSumCs12Ps64RabEstablish/pmSamplesCs12Ps64RabEstablish gives the average number of single CS12 RABs which were active during a ROP period.
pmSamplesAmr12200RabEstablish Number of samples recorded within the ROP period for “number of speech AM12200 RABs established”.
pmSumAmr12200RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 12200 RABs established’.
pmSamplesAmr7950RabEstablish Number of samples recorded within the ROP period for “number of speech AMR7950 RABs established”.
pmSumAmr7950RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 7950 RABs established’.
pmSamplesAmr5900RabEstablish Number of samples recorded within the ROP period for “number of speech AMR5900 RABs established”.
pmSumAmr5900RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 5900 RABs established’.
pmSamplesAmr4750RabEstablish Number of samples recorded within the ROP period for “number of speech AMR4750 RABs established”.
pmSumAmr4750RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 4750 RABs established’.
pmSamplesBestAmr12200RabEstablish Number of samples recorded within the ROP period for “number of speech AM12200 RABs established” for the best cell in the active set
pmSumBestAmr12200RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 12200 RABs established’ for the best cell in the active set.
pmSamplesBestAmr7950RabEstablish Number of samples recorded within the ROP period for “number of speech AMR7950 RABs established” for the best cell in the active set.
pmSumBestAmr7950RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 7950 RABs established’ for the best cell in the active set.
pmSamplesBestAmr5900RabEstablish Number of samples recorded within the ROP period for “number of speech AMR5900 RABs established” for the best cell in the active set.
pmSumBestAmr5900RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 5900 RABs established’ for the best cell in the active set.
pmSamplesBestAmr4750RabEstablish Number of samples recorded within the ROP period for “number of speech AMR4750 RABs established” for the best cell in the active set.
pmSumBestAmr4750RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 4750 RABs established’ for the best cell in the active set.
pmSumPsSTr64Ps8RabEstablish A snapshot of the totla number of currently active PS Streaming 16/64 + PS Interactive 8 kbps RAB recorded once every 30 seconds.
pmSamplesPsSTr64Ps8RabEstablish Number of samples recorded within the ROP period for number of active PS streaming ply PS8 multi RABs.
pmSumRABEstablish A snapshot of the total number of currently active RABs is recored once every 30 seconds.
pmSamplesRABEstablish Number of samples recorded within the ROP period for number of RABs established.
pmNoRABEstablishSuccessPacketInteractiveEul The number of successful RAB establishments for PS Interactive RAB mapped on E-DCH/HSDPA
pmNoRABEstablishSuccessCS57 The number of successful RAB establishments CS57 referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessCS64 The number of successful RAB establishments CS64 referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessPacketInteractive The number of successful RAB establishments PS Data Interactive referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessPacketStream The number of successful RAB establishments PS Streaming referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessSpeech The number of successful RAB establishments Speech referred to the Best Cell in the Active Set
pmSumBestAmrCs12RabEstablish Sum of all sample values recorded once every 5 seconds for ‘number of distinct speech users’,referred to the best cell in the Active set.
pmSamplesBestCS12RabEstablish Number of samples recoreded once every 5 seconds within ROP predio for ‘ number of distinct speech users.’, referred to the best cell in the Active Set.
pmNoFailedRABEstAttemptLackDlPwr Number of failed RAB establishment attempts due to lack of DL power
pmNoFailedRABEstAttemptLackChnlCode Number of failed RAB establishment attempts due to lack of DL channelization codes
pmNoFailedRABEstAttemptLackDlASE Number of failed RAB establishment attempts due to lack of DL ASE
pmNoFailedRABEstAttemptLackUlASE Number of failed RAB establishment attempts due to lack of UL ASE
pmSamplesCS64PS8Establish The number of samples recorded in the ROP period for the multi-RAB UDI+8/8
pmSumCS64PS8Establish
pmNoRABEstablishSuccessPacketInteractiveHS The number of successful RAB establishments for PS Interactive RAB mapped on HS-DSCH.
pmSamplesBestPSEulRABEstablish Stepped every time the corresponding sum counter of the best cell, pmSumBestPSEUlRabEstablished, is incremented
pmSumBestPSEulRABEstablish Number of E-DCH radio bearers established in this cell when it is the best cell, incremented every 5 seconds.
pmSamplesPsEulRAbEstablish Stepped every time the corresponding sum counter of the best cell, pmSumPSEUlRabEstablished, is incremented
pmSumPsEulRAbEstablish Number of E-DCH radio bearers established in this cell, incremented every 5 seconds.
pmSamplesPSHsAdchRABEstablished Number of samples recorded within the ROP period for ‘Number of A-DCHs established’.
pmSumPSHsAdchRABEstablished Sum of all sample values for ‘Number of A-DCHs established’.
pmSamplesBestPSHsAdchRABEstablished Number of samples recorded within the ROP period for ‘Number of A-DCHs radio bearers established’ in the cell carrying HS-DSCH in the active set.
pmSumBestPSHsAdchRABEstablished Sum of all sample values for ‘Number of A-DCHs radio bearers established in the cell carrying Hs-DSCH in the active set’.
pmNoRABEstablishSuccessPacketStream128 Number of successful RAB establishments (PS Streaming 128) referred to the best cell in the Active Set
pmSamplesPsStr128Ps8RabEstablish Number of samples within the ROP period for the number of PS Streaming 16/128 and PS streaming 128/16 kbps RABs established.
pmSumPsStr128Ps8RabEstablish Sum of all sample values recorded once every 5 seconds for number PS Streaming 16/128 and PS Streaming 128/16 RAB established.
pmSamplesBestPsStr128Ps8RabEstablish Number of samples within the ROP period for the number of PS Streaming 16/128 and PS streaming 128/16 kbps RABs established for the best cell in the active set.
pmSumBestPsStr128Ps8RabEstablish Sum of all sample values recorded once every 5 seconds for number PS Streaming 16/128 and PS Streaming 128/16 RAB established for the best cell in the active set.
pmSamplesBestCS57RabEstablish Number of samples within the ROP period for the number of Streaming 57.6 kbps CS RABs established for the best cell in the active set.
pmSumBestCs57RabEstablish Sum of all sample values recorded once every 5 seconds for number Streaming 57.6 CS RAB established for the best cell in the active set.
pmSamplesBestCS64RabEstablish Number of samples within the ROP period for the number of conversational 64 kbps CS RABs established for the best cell in the active set.
pmSumBestCs64RabEstablish Sum of all sample values recorded once every 5 seconds for number conversational 64 kbps CS RAB established for the best cell in the active set.
pmSamplesBestPsStr64PS8RabEstablish Number of samples within the ROP period for the number of PS streaming 64/16 and PS streaming 16/64 kbps RABs established for the best cell in the active set.
pmSumBestPsStr64Ps8RabEstablish Sum of all sample values recorded once every 5 seconds for number of PS streaming 64/16 and PS streaming 16/64 kbps RABs established for the best cell in the active set.
pmsamplesPSInteractive Number of samples recorded within the ROP period for ‘Number of Interactive PS RABs established excluding RABs on HS configurations or Cell_FACH
pmSumPSInteractive Sum of all sample values recorded for number of interactive PS RABs established excluding RABs on HS configurations of cell_FACH.
pmNoFailedRabEstAttemptLackDlHwBest Number of failed RAB establishment due to lack of DL hardware resources, for the best cell in the active set.
pmNoFailedRabEstAttemptLackUlHwBest Number of failed RAB establishment due to lack of UL hardware resources, for the best cell in the active set.
pmNoFailedRabEstAttemptLackDlHw Number of failed RAB establishment due to lack of DL hardware resources.
pmNoFailedRabEstAttemptLackUlHw Number of failed RAB establishment due to lack of UL hardware resources.
pmSumCs12RabEstablish a snapshot of the total number of currently active speech 12.2 kbit RAB connections is recorded once every 5 seconds. This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs12RabEstablish Number of samples recorded within the ROP period for number of active speech 12.2 kbit RAB. pmSumCs12RabEstablish/pmSamplesCs12RabEstablish gives the average number of single CS12 RABs which were active during a ROP period.
pmSumCs64RabEstablish a snapshot of the total number of currently active speech 64 kbitRAB connections is recorded once every 5 seconds. This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs64RabEstablish Number of samples recorded within the ROP period for number of conversational 64 kbit RAB. pmSumCs64RabEstablish/pmSamplesCs64RabEstablish gives the average number of single CS64 RABs which were active during a ROP period.
pmSumCs57RabEstablish a snapshot of the total number of currently active CS 57 RABs connections is recorded once every 5 seconds.This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs57RabEstablish Number of samples recorded within the ROP period for number of CS 57 RABs. pmSumCs57RabEstablish/pmSamplesCs57RabEstablish gives the average number of single CS57 RABs which were active during a ROP period.
pmSumCs12Ps64RabEstablish a snapshot of the total number of currently active speech CS plus 64/64 connections PS multiRAB. It is recorded once every 5 seconds.This counter contains the sum of all the snapshot values taken in a ROP period added together
pmSamplesCs12Ps64RabEstablish Number of samples recorded within the ROP period for number of speech CS plus 64/64 PS multi RAB. pmSumCs12Ps64RabEstablish/pmSamplesCs12Ps64RabEstablish gives the average number of single CS12 RABs which were active during a ROP period.
pmSamplesAmr12200RabEstablish Number of samples recorded within the ROP period for “number of speech AM12200 RABs established”.
pmSumAmr12200RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 12200 RABs established’.
pmSamplesAmr7950RabEstablish Number of samples recorded within the ROP period for “number of speech AMR7950 RABs established”.
pmSumAmr7950RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 7950 RABs established’.
pmSamplesAmr5900RabEstablish Number of samples recorded within the ROP period for “number of speech AMR5900 RABs established”.
pmSumAmr5900RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 5900 RABs established’.
pmSamplesAmr4750RabEstablish Number of samples recorded within the ROP period for “number of speech AMR4750 RABs established”.
pmSumAmr4750RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 4750 RABs established’.
pmSamplesBestAmr12200RabEstablish Number of samples recorded within the ROP period for “number of speech AM12200 RABs established” for the best cell in the active set
pmSumBestAmr12200RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 12200 RABs established’ for the best cell in the active set.
pmSamplesBestAmr7950RabEstablish Number of samples recorded within the ROP period for “number of speech AMR7950 RABs established” for the best cell in the active set.
pmSumBestAmr7950RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 7950 RABs established’ for the best cell in the active set.
pmSamplesBestAmr5900RabEstablish Number of samples recorded within the ROP period for “number of speech AMR5900 RABs established” for the best cell in the active set.
pmSumBestAmr5900RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 5900 RABs established’ for the best cell in the active set.
pmSamplesBestAmr4750RabEstablish Number of samples recorded within the ROP period for “number of speech AMR4750 RABs established” for the best cell in the active set.
pmSumBestAmr4750RabEstablish Sum of sample values recorded within ROP period for ‘Number of Speech AMR 4750 RABs established’ for the best cell in the active set.
pmSumPsSTr64Ps8RabEstablish A snapshot of the totla number of currently active PS Streaming 16/64 + PS Interactive 8 kbps RAB recorded once every 30 seconds.
pmSamplesPsSTr64Ps8RabEstablish Number of samples recorded within the ROP period for number of active PS streaming ply PS8 multi RABs.
pmSumRABEstablish A snapshot of the total number of currently active RABs is recored once every 30 seconds.
pmSamplesRABEstablish Number of samples recorded within the ROP period for number of RABs established.
pmNoRABEstablishSuccessPacketInteractiveEul The number of successful RAB establishments for PS Interactive RAB mapped on E-DCH/HSDPA
pmNoRABEstablishSuccessCS57 The number of successful RAB establishments CS57 referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessCS64 The number of successful RAB establishments CS64 referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessPacketInteractive The number of successful RAB establishments PS Data Interactive referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessPacketStream The number of successful RAB establishments PS Streaming referred to the Best Cell in the Active Set
pmNoRABEstablishSuccessSpeech The number of successful RAB establishments Speech referred to the Best Cell in the Active Set
pmSumBestAmrCs12RabEstablish Sum of all sample values recorded once every 5 seconds for ‘number of distinct speech users’,referred to the best cell in the Active set.
pmSamplesBestCS12RabEstablish Number of samples recoreded once every 5 seconds within ROP predio for ‘ number of distinct speech users.’, referred to the best cell in the Active Set.
pmNoFailedRABEstAttemptLackDlPwr Number of failed RAB establishment attempts due to lack of DL power
pmNoFailedRABEstAttemptLackChnlCode Number of failed RAB establishment attempts due to lack of DL channelization codes
pmNoFailedRABEstAttemptLackDlASE Number of failed RAB establishment attempts due to lack of DL ASE
pmNoFailedRABEstAttemptLackUlASE Number of failed RAB establishment attempts due to lack of UL ASE
pmSamplesCS64PS8Establish The number of samples recorded in the ROP period for the multi-RAB UDI+8/8
pmSumCS64PS8Establish
pmNoRABEstablishSuccessPacketInteractiveHS The number of successful RAB establishments for PS Interactive RAB mapped on HS-DSCH.
pmSamplesBestPSEulRABEstablish Stepped every time the corresponding sum counter of the best cell, pmSumBestPSEUlRabEstablished, is incremented
pmSumBestPSEulRABEstablish Number of E-DCH radio bearers established in this cell when it is the best cell, incremented every 5 seconds.
pmSamplesPsEulRAbEstablish Stepped every time the corresponding sum counter of the best cell, pmSumPSEUlRabEstablished, is incremented
pmSumPsEulRAbEstablish Number of E-DCH radio bearers established in this cell, incremented every 5 seconds.
pmSamplesPSHsAdchRABEstablished Number of samples recorded within the ROP period for ‘Number of A-DCHs established’.
pmSumPSHsAdchRABEstablished Sum of all sample values for ‘Number of A-DCHs established’.
pmSamplesBestPSHsAdchRABEstablished Number of samples recorded within the ROP period for ‘Number of A-DCHs radio bearers established’ in the cell carrying HS-DSCH in the active set.
pmSumBestPSHsAdchRABEstablished Sum of all sample values for ‘Number of A-DCHs radio bearers established in the cell carrying Hs-DSCH in the active set’.
pmNoRABEstablishSuccessPacketStream128 Number of successful RAB establishments (PS Streaming 128) referred to the best cell in the Active Set
pmSamplesPsStr128Ps8RabEstablish Number of samples within the ROP period for the number of PS Streaming 16/128 and PS streaming 128/16 kbps RABs established.
pmSumPsStr128Ps8RabEstablish Sum of all sample values recorded once every 5 seconds for number PS Streaming 16/128 and PS Streaming 128/16 RAB established.
pmSamplesBestPsStr128Ps8RabEstablish Number of samples within the ROP period for the number of PS Streaming 16/128 and PS streaming 128/16 kbps RABs established for the best cell in the active set.
pmSumBestPsStr128Ps8RabEstablish Sum of all sample values recorded once every 5 seconds for number PS Streaming 16/128 and PS Streaming 128/16 RAB established for the best cell in the active set.
pmSamplesBestCS57RabEstablish Number of samples within the ROP period for the number of Streaming 57.6 kbps CS RABs established for the best cell in the active set.
pmSumBestCs57RabEstablish Sum of all sample values recorded once every 5 seconds for number Streaming 57.6 CS RAB established for the best cell in the active set.
pmSamplesBestCS64RabEstablish Number of samples within the ROP period for the number of conversational 64 kbps CS RABs established for the best cell in the active set.
pmSumBestCs64RabEstablish Sum of all sample values recorded once every 5 seconds for number conversational 64 kbps CS RAB established for the best cell in the active set.
pmSamplesBestPsStr64PS8RabEstablish Number of samples within the ROP period for the number of PS streaming 64/16 and PS streaming 16/64 kbps RABs established for the best cell in the active set.
pmSumBestPsStr64Ps8RabEstablish Sum of all sample values recorded once every 5 seconds for number of PS streaming 64/16 and PS streaming 16/64 kbps RABs established for the best cell in the active set.
pmsamplesPSInteractive Number of samples recorded within the ROP period for ‘Number of Interactive PS RABs established excluding RABs on HS configurations or Cell_FACH
pmSumPSInteractive Sum of all sample values recorded for number of interactive PS RABs established excluding RABs on HS configurations of cell_FACH.
pmNoFailedRabEstAttemptLackDlHwBest Number of failed RAB establishment due to lack of DL hardware resources, for the best cell in the active set.
pmNoFailedRabEstAttemptLackUlHwBest Number of failed RAB establishment due to lack of UL hardware resources, for the best cell in the active set.
pmNoFailedRabEstAttemptLackDlHw Number of failed RAB establishment due to lack of DL hardware resources.
pmNoFailedRabEstAttemptLackUlHw Number of failed RAB establishment due to lack of UL hardware resources.
Ericsson Counter IRAT
IRAT - Inter Radio Access Technology
pmNoSucccessOutIRATHOSpeech Number of successful speech outgoing Inter System Handovers
pmNoSucccessOutIRATHOCS57 Number of successful CS57 outgoing Inter System Handovers
pmNoSucccessOutIRATHOMulti Number of successful multi-RAB outgoing Inter System Handovers
pmNoInCSIratHoSuccess Number of successful CS incoming Inter System Handovers
pmNoInCSIRATHoAtt Number of attempted CS incoming Inter System Handovers (counted before module and central MP load control, after SCCP MP Load control)
pmNoInCsIratHoAdmFail Number of CS Incoming Inter System Handovers that failed due to admission blocking in UTRAN.
pmNoOutIratCcAtt Total number of the PS Inter-RATCC attempts on DCH
pmNoOutIratCcReturnOldCh Total number of the PS Inter-RATCC attempts for Ue on DCH where the UE returns to old channel
pmNoOutIratCcSuccess Number of successful PS Inter-RAT cell change attempts for UE on dedicated channel. The counter is triggered by CN Iu Release Command following the sending of the Cell Change Order from Utran message.
pmTotNoRRcConnectAttIratCellResel Total number of RRC connection establishment attempts with establishment cause Inter-RAT cell reselection.
pmTotNoRRcConnectAttIratCcOrder Total number of RRC connection establishment attempts with establishment cause Inter-RAT cell change order
pmTotlNoRrcConnectFailCongIratCellResel Number of unsuccessful RRC Connection establishments with establishment cause Inter-RAT cell reselection, which failed due to congestion
pmTotNoRrcConnectFailCongIratCcOrder Number of unsuccessful RRC Connection establishments with establishment cause Inter-RAT cell change order, which failed due to congestion.
PAGING
pmNoSucccessOutIRATHOSpeech Number of successful speech outgoing Inter System Handovers
pmNoSucccessOutIRATHOCS57 Number of successful CS57 outgoing Inter System Handovers
pmNoSucccessOutIRATHOMulti Number of successful multi-RAB outgoing Inter System Handovers
pmNoInCSIratHoSuccess Number of successful CS incoming Inter System Handovers
pmNoInCSIRATHoAtt Number of attempted CS incoming Inter System Handovers (counted before module and central MP load control, after SCCP MP Load control)
pmNoInCsIratHoAdmFail Number of CS Incoming Inter System Handovers that failed due to admission blocking in UTRAN.
pmNoOutIratCcAtt Total number of the PS Inter-RATCC attempts on DCH
pmNoOutIratCcReturnOldCh Total number of the PS Inter-RATCC attempts for Ue on DCH where the UE returns to old channel
pmNoOutIratCcSuccess Number of successful PS Inter-RAT cell change attempts for UE on dedicated channel. The counter is triggered by CN Iu Release Command following the sending of the Cell Change Order from Utran message.
pmTotNoRRcConnectAttIratCellResel Total number of RRC connection establishment attempts with establishment cause Inter-RAT cell reselection.
pmTotNoRRcConnectAttIratCcOrder Total number of RRC connection establishment attempts with establishment cause Inter-RAT cell change order
pmTotlNoRrcConnectFailCongIratCellResel Number of unsuccessful RRC Connection establishments with establishment cause Inter-RAT cell reselection, which failed due to congestion
pmTotNoRrcConnectFailCongIratCcOrder Number of unsuccessful RRC Connection establishments with establishment cause Inter-RAT cell change order, which failed due to congestion.
PAGING
Ericsson Counter WCDMA Congestion
Congestion
pmNoOfTermCSCong Number of circuit-switched data radio connections served by this RNC terminated due to congestion
pmSum ofTimesMeasOlDl Number of times Congestion Control is triggered due to high DL power.
pmNoOfSwDownEulCong Number of E-DCH users served by this RNC which are down-switched due to DL congestion in both EUL serving cell and EUL non-serving cell
pmNoOfSwDownNgCong Number of non-guaranteed users served by this RNC switched down to common or terminated due to congestion
pmNoOfIurSwDownNgCong Number of non-guaranteed users served by another RNC terminated due to congestion
pmNoOfIurTermSpeechCong Number of speech Radio connections served by another RNC terminated due to congestion.
pmNoOfIurTermCSCong Number of both CS Radio connections and PS streaming parts in a connection, served over Iur and terminated due to congestion
pmNoofIurTermCsCong Number of both CS Radio Connections and PS streaming parts in a connection, served over Iur and terminated due to congestion
pmSumOfTimesMeasOlUl Number of times Congestion Control is triggered due to high Ul interference. This counter is increased if congestion control function detects UL congestion. It is done by monitoring NBAP Common Measurement Reports for each cell to see if the UL power is above a threshold.
pmTotalTimeDLCellCong The total amount of time (seconds) a cell was congested in DL during a reporting period
pmTotalTimeULCellCong The total amount of time (seconds) a cell was congested in UL during a reporting period
pmNoofSwDonwHsCong Number of Radio Connections served by this RNC, including an HSDPA service, which are channel switched down due to congestion resolve actions initiated on a serving Ue context
pmNoOfTermCSCong Number of circuit-switched data radio connections served by this RNC terminated due to congestion
pmSum ofTimesMeasOlDl Number of times Congestion Control is triggered due to high DL power.
pmNoOfSwDownEulCong Number of E-DCH users served by this RNC which are down-switched due to DL congestion in both EUL serving cell and EUL non-serving cell
pmNoOfSwDownNgCong Number of non-guaranteed users served by this RNC switched down to common or terminated due to congestion
pmNoOfIurSwDownNgCong Number of non-guaranteed users served by another RNC terminated due to congestion
pmNoOfIurTermSpeechCong Number of speech Radio connections served by another RNC terminated due to congestion.
pmNoOfIurTermCSCong Number of both CS Radio connections and PS streaming parts in a connection, served over Iur and terminated due to congestion
pmNoofIurTermCsCong Number of both CS Radio Connections and PS streaming parts in a connection, served over Iur and terminated due to congestion
pmSumOfTimesMeasOlUl Number of times Congestion Control is triggered due to high Ul interference. This counter is increased if congestion control function detects UL congestion. It is done by monitoring NBAP Common Measurement Reports for each cell to see if the UL power is above a threshold.
pmTotalTimeDLCellCong The total amount of time (seconds) a cell was congested in DL during a reporting period
pmTotalTimeULCellCong The total amount of time (seconds) a cell was congested in UL during a reporting period
pmNoofSwDonwHsCong Number of Radio Connections served by this RNC, including an HSDPA service, which are channel switched down due to congestion resolve actions initiated on a serving Ue context
Ericsson Counter PAGING
PAGING
pmNoCellUpdAttempt total number of attempted cell update procedures (periodic and cell reselection, RRC cell update message received with Cell Update Cause = Cell Reselection or Periodic Cell Update)
PmNoCellUpdSuccess total number of successful cell update procedures (periodic and cell reselection, RRC cell update message received with Cell Update Cause = Cell Reselection or Periodic Cell Update)
pmNoPagingAttemptCnInitDcch Number of CN-initiated pages set onDCCH to connected mode Ues.
pmNoPageDiscardCmpLoadC Number of pages discarded due to central MP Load control
pmNoPagingAttemptUtranRejected Number of page requests rejected by UTRAN
pmNoPagingType1Attempt Counting the number of page type 1 attempts to idle Ues in a cell (excluding) retransmissions)
pmNoPagingType1AttemptCs Counting the number of page type 1 attempts with cause ‘Terminating Conversational Call’ to idle Ues in a cell (excluding retransmission).
pmNoPagingType1AttemptPs Counting the number of page type 1attempts with cause ‘Terminating Interactive Call’ or ‘Terminating Background Call’ to idle Ues in a cell (excluding retransmission).
pmCnInitPagingToIdleUeLa Number of CN-Initiated pages sent to idle mode Ues (with CN identity specified in the RRC Paging Type 1 (message) in specified Location Area (LA) (circuit-switched pages).
pmCnInitPagingToIdleUeRa Number of CN-Initiated pages sent to idle mode Ues (with CN identity specified in the RRC Paging Type 1 (message) in specified Routing Area (RA) (packet switched pages).
pmUTRANInitPagingToUraUe Number of Utran initiated pages attempted for Ues in URA-PCH state.
pmCnInitPagingToUraUe Number of CN initiated pages attempted for Ues in URA_PCH
pmNoCellUpdAttempt total number of attempted cell update procedures (periodic and cell reselection, RRC cell update message received with Cell Update Cause = Cell Reselection or Periodic Cell Update)
PmNoCellUpdSuccess total number of successful cell update procedures (periodic and cell reselection, RRC cell update message received with Cell Update Cause = Cell Reselection or Periodic Cell Update)
pmNoPagingAttemptCnInitDcch Number of CN-initiated pages set onDCCH to connected mode Ues.
pmNoPageDiscardCmpLoadC Number of pages discarded due to central MP Load control
pmNoPagingAttemptUtranRejected Number of page requests rejected by UTRAN
pmNoPagingType1Attempt Counting the number of page type 1 attempts to idle Ues in a cell (excluding) retransmissions)
pmNoPagingType1AttemptCs Counting the number of page type 1 attempts with cause ‘Terminating Conversational Call’ to idle Ues in a cell (excluding retransmission).
pmNoPagingType1AttemptPs Counting the number of page type 1attempts with cause ‘Terminating Interactive Call’ or ‘Terminating Background Call’ to idle Ues in a cell (excluding retransmission).
pmCnInitPagingToIdleUeLa Number of CN-Initiated pages sent to idle mode Ues (with CN identity specified in the RRC Paging Type 1 (message) in specified Location Area (LA) (circuit-switched pages).
pmCnInitPagingToIdleUeRa Number of CN-Initiated pages sent to idle mode Ues (with CN identity specified in the RRC Paging Type 1 (message) in specified Routing Area (RA) (packet switched pages).
pmUTRANInitPagingToUraUe Number of Utran initiated pages attempted for Ues in URA-PCH state.
pmCnInitPagingToUraUe Number of CN initiated pages attempted for Ues in URA_PCH
Ericsson Counter RAB denied
RAB Denied Radio Access Bearer Denied
pmNoOfNonHoReqDeniedCs Number of CS data or CS streaming RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedInteractive Number of interactive RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedPsStreaming Number of PS Streaming RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedSpeech Number of Speech RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedAdm Number of RAB establishment and RRC requests denied due to admission
pmNoOf SwDownNgAdm number of downswitch for non-guaranteed and guaranteed-hs users served by this RNC switched down due to admission control. The counter is incremented at downswitching from Cell_DCH 64/384–>64/128 or Cell_DCH 64/128–>64/64 initiated by admission control to do Best Effort Cleanup. This is done after admission rejection due to insufficient downlink power or code utilization limits.
pmNoof Discarded NBAP Messages Number of NBAP: Radio Link Set-uo Messages reject by Admission control due to User Network Interface Signaling ATM Adaptation Layer (UNI-SAAL) congestion
pmNoofNonHoReqDeniedHs Number of Interactive RAB establishments on a HS configuration rejected by admission control
pmNoOf NonHoReqDenied Eul Number of admission request denied at RAB establishments on E-DCH.
pmNoServingCellReqDeniedEul Number of admission request denied when requesting the cell as serving cell because the number of E-DCH users is above the admission threshold.
pmNoNonServingCellReqDeniedEul Number of admission request denied when requesting the cell as non-serving cell because the number of E-DCH users is above the admission threshold.
pmNoofNonHoReqDenied PsStr128 Number of PS Streaming 128 RAB establishments rejected by admission control.
pmNoOfNonHoReqDeniedCs Number of CS data or CS streaming RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedInteractive Number of interactive RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedPsStreaming Number of PS Streaming RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedSpeech Number of Speech RAB establishments rejected by admission control
pmNoOfNonHoReqDeniedAdm Number of RAB establishment and RRC requests denied due to admission
pmNoOf SwDownNgAdm number of downswitch for non-guaranteed and guaranteed-hs users served by this RNC switched down due to admission control. The counter is incremented at downswitching from Cell_DCH 64/384–>64/128 or Cell_DCH 64/128–>64/64 initiated by admission control to do Best Effort Cleanup. This is done after admission rejection due to insufficient downlink power or code utilization limits.
pmNoof Discarded NBAP Messages Number of NBAP: Radio Link Set-uo Messages reject by Admission control due to User Network Interface Signaling ATM Adaptation Layer (UNI-SAAL) congestion
pmNoofNonHoReqDeniedHs Number of Interactive RAB establishments on a HS configuration rejected by admission control
pmNoOf NonHoReqDenied Eul Number of admission request denied at RAB establishments on E-DCH.
pmNoServingCellReqDeniedEul Number of admission request denied when requesting the cell as serving cell because the number of E-DCH users is above the admission threshold.
pmNoNonServingCellReqDeniedEul Number of admission request denied when requesting the cell as non-serving cell because the number of E-DCH users is above the admission threshold.
pmNoofNonHoReqDenied PsStr128 Number of PS Streaming 128 RAB establishments rejected by admission control.
Ericsson Counter EUL
EUL
pmNoUlUULoadLimitEul Counter for the number of time a scheduling decision is taken to increase the Uu rate of an E-DCH user and there is a need to decrease the Uu rate for another E-DCH user owing to ULUu load limitations.
pmNoSchEdchEul This counter shows the total number of simultaneous scheduled E-DCH users have a rate >0kbps
Iub
pmEdchIubLimitingRatio-EUL Counter for the number of 100 ms periods where the Iub has been the only limiting factor dure at least one TTI is divided by the number of 100 ms periods during which edchGrantrate has been bigger than zero.
pmEdchIubMeasRate-EUL Measurement of the E-DCH Iub Bit rate sent by the RBS in uplink over Iub. The bit rate includes all bits sent in the Radio Network Layer E-DCH data frames, including its overhead. AAL2 and ATM overhead is not included.
pmNoUlIub Limit Eul Counter for the number of time a scheduling decision is taken to increase the Iub rate of an E-DCH u ser and there is a need to decrease the Iub rate for another E-DCH user owing to ULUu load limitations.
pmNoUlUULoadLimitEul Counter for the number of time a scheduling decision is taken to increase the Uu rate of an E-DCH user and there is a need to decrease the Uu rate for another E-DCH user owing to ULUu load limitations.
pmNoSchEdchEul This counter shows the total number of simultaneous scheduled E-DCH users have a rate >0kbps
Iub
pmEdchIubLimitingRatio-EUL Counter for the number of 100 ms periods where the Iub has been the only limiting factor dure at least one TTI is divided by the number of 100 ms periods during which edchGrantrate has been bigger than zero.
pmEdchIubMeasRate-EUL Measurement of the E-DCH Iub Bit rate sent by the RBS in uplink over Iub. The bit rate includes all bits sent in the Radio Network Layer E-DCH data frames, including its overhead. AAL2 and ATM overhead is not included.
pmNoUlIub Limit Eul Counter for the number of time a scheduling decision is taken to increase the Iub rate of an E-DCH u ser and there is a need to decrease the Iub rate for another E-DCH user owing to ULUu load limitations.
Ericsson Counter HSDPA
HSDPA
pmAverageUserRate the distribution of the average user rate among all user allocated ti high-speed-DSCH in the cell.
pmTargetHsRate the target high-speed bit rate as a percentage of the maxHsRate parameter
pmNoOfHsUsersPerTti Average number of high speed users scheduled in the cell at each 2 ms TT1
pmRbsHsPdschCodePrio The number of times there is an Hs-PDSCH HW shortage. The counter accumulates the number of code shortage occurrences, that is, the number of time priority resolve is entered in the algorithm for dynamic code allocation
pmRemainingResourceCheck the reason why it is not possible to schedule another high-speed user for immediate traffic. (1) Hs-SCCH code shortage; (2) HS-PDSCH code shortage;(3)HS-PDSCH power shortage
pmSampleNumHspdschCodesAdded the number of times the RBS dynamic code addition algorithm is executed.
pmSumNumHspdschCodesAdded sum of all codes that are allocated for HS-DSCH (RNC allocation codes allocated by the RBS dynamic HS-PDSCH code addition algorithm)
pmAverageUserRate the distribution of the average user rate among all user allocated ti high-speed-DSCH in the cell.
pmTargetHsRate the target high-speed bit rate as a percentage of the maxHsRate parameter
pmNoOfHsUsersPerTti Average number of high speed users scheduled in the cell at each 2 ms TT1
pmRbsHsPdschCodePrio The number of times there is an Hs-PDSCH HW shortage. The counter accumulates the number of code shortage occurrences, that is, the number of time priority resolve is entered in the algorithm for dynamic code allocation
pmRemainingResourceCheck the reason why it is not possible to schedule another high-speed user for immediate traffic. (1) Hs-SCCH code shortage; (2) HS-PDSCH code shortage;(3)HS-PDSCH power shortage
pmSampleNumHspdschCodesAdded the number of times the RBS dynamic code addition algorithm is executed.
pmSumNumHspdschCodesAdded sum of all codes that are allocated for HS-DSCH (RNC allocation codes allocated by the RBS dynamic HS-PDSCH code addition algorithm)
Ericsson Counter Downlink Channel Element
DL CE
pmNoOfRadioLinksSf4 the number of Rls used for the DL baseband pool for SF4
pmNoOfRadioLinksSf8 the number of Rls used for the DL baseband pool for SF8
pmNoOfRadioLinksSf16 the number of Rls used for the DL baseband pool for SF16
pmNoOfRadioLinksSf32 the number of Rls used for the DL baseband pool for SF32
pmNoOfRadioLinksSf64 the number of Rls used for the DL baseband pool for SF64
pmNoOfRadioLinksSf128 the number of Rls used for the DL baseband pool for SF128
pmNoOfRadioLinksSf256 the number of Rls used for the DL baseband pool for SF256
pmsetupattemptsSf4 the number of setup attempts for each GP for the DL baseband pool for SF4
pmsetupattemptsSf8 the number of setup attempts for each GP for the DL baseband pool for SF8
pmsetupattemptsSf16 the number of setup attempts for each GP for the DL baseband pool for SF16
pmsetupattemptsSf32 the number of setup attempts for each GP for the DL baseband pool for SF32
pmsetupattemptsSf64 the number of setup attempts for each GP for the DL baseband pool for SF64
pmsetupattemptsSf128 the number of setup attempts for each GP for the DL baseband pool for SF128
pmsetupattemptsSf256 the number of setup attempts for each GP for the DL baseband pool for SF256
pmsetupfailuresSf4 the number of setup failures for each GP for the DL baseband pool for SF4
pmsetupfailuresSf8 the number of setup failures for each GP for the DL baseband pool for SF8
pmsetupfailuresSf16 the number of setup failures for each GP for the DL baseband pool for SF16
pmsetupfailuresSf32 the number of setup failures for each GP for the DL baseband pool for SF32
pmsetupfailuresSf64 the number of setup failures for each GP for the DL baseband pool for SF64
pmsetupfailuresSf128 the number of setup failures for each GP for the DL baseband pool for SF128
pmsetupfailuresSf256 the number of setup failures for each GP for the DL baseband pool for SF256
pmNoOfRlAdditionFailuresSf4 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF4
pmNoOfRlAdditionFailuresSf8 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF8
pmNoOfRlAdditionFailuresSf16 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF16
pmNoOfRlAdditionFailuresSf32 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF32
pmNoOfRlAdditionFailuresSf64 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF64
pmNoOfRlAdditionFailuresSf128 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF128
pmNoOfRlAdditionFailuresSf256 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF256
pmApomcofMdsr the average Mixed DL Service Rate (MDSR) usage of the Mixed DL Service Capacity (MDSC) in percent. MDSR is the resource usage for transport channel handling and it is independent from the traffic intensity for that channel. The MDSC is the sum of all Channel Elements (CE) of the configured TX boards in the RBS. The number of CEs for each TX board depends on the type of TX board.
pmApomcOfMdlr the average MDLR usage of the MDSC in percent. The MDLR is the resource usage for the RL handling and it is dependent of the SF used.
pmApomcOfSpreadersUsed the average spreader usage of the maximum DL spreader capacity in percent.
pmNoOfRadioLinksSf4 the number of Rls used for the DL baseband pool for SF4
pmNoOfRadioLinksSf8 the number of Rls used for the DL baseband pool for SF8
pmNoOfRadioLinksSf16 the number of Rls used for the DL baseband pool for SF16
pmNoOfRadioLinksSf32 the number of Rls used for the DL baseband pool for SF32
pmNoOfRadioLinksSf64 the number of Rls used for the DL baseband pool for SF64
pmNoOfRadioLinksSf128 the number of Rls used for the DL baseband pool for SF128
pmNoOfRadioLinksSf256 the number of Rls used for the DL baseband pool for SF256
pmsetupattemptsSf4 the number of setup attempts for each GP for the DL baseband pool for SF4
pmsetupattemptsSf8 the number of setup attempts for each GP for the DL baseband pool for SF8
pmsetupattemptsSf16 the number of setup attempts for each GP for the DL baseband pool for SF16
pmsetupattemptsSf32 the number of setup attempts for each GP for the DL baseband pool for SF32
pmsetupattemptsSf64 the number of setup attempts for each GP for the DL baseband pool for SF64
pmsetupattemptsSf128 the number of setup attempts for each GP for the DL baseband pool for SF128
pmsetupattemptsSf256 the number of setup attempts for each GP for the DL baseband pool for SF256
pmsetupfailuresSf4 the number of setup failures for each GP for the DL baseband pool for SF4
pmsetupfailuresSf8 the number of setup failures for each GP for the DL baseband pool for SF8
pmsetupfailuresSf16 the number of setup failures for each GP for the DL baseband pool for SF16
pmsetupfailuresSf32 the number of setup failures for each GP for the DL baseband pool for SF32
pmsetupfailuresSf64 the number of setup failures for each GP for the DL baseband pool for SF64
pmsetupfailuresSf128 the number of setup failures for each GP for the DL baseband pool for SF128
pmsetupfailuresSf256 the number of setup failures for each GP for the DL baseband pool for SF256
pmNoOfRlAdditionFailuresSf4 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF4
pmNoOfRlAdditionFailuresSf8 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF8
pmNoOfRlAdditionFailuresSf16 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF16
pmNoOfRlAdditionFailuresSf32 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF32
pmNoOfRlAdditionFailuresSf64 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF64
pmNoOfRlAdditionFailuresSf128 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF128
pmNoOfRlAdditionFailuresSf256 the number of RL addition failures for the DL baseband pool caused by TXB congestion for SF256
pmApomcofMdsr the average Mixed DL Service Rate (MDSR) usage of the Mixed DL Service Capacity (MDSC) in percent. MDSR is the resource usage for transport channel handling and it is independent from the traffic intensity for that channel. The MDSC is the sum of all Channel Elements (CE) of the configured TX boards in the RBS. The number of CEs for each TX board depends on the type of TX board.
pmApomcOfMdlr the average MDLR usage of the MDSC in percent. The MDLR is the resource usage for the RL handling and it is dependent of the SF used.
pmApomcOfSpreadersUsed the average spreader usage of the maximum DL spreader capacity in percent.
Ericsson Counter Uplink Channel Element
UL CE
pmHwCePoolEul total sum of Ces allocation on the UL Hardware by the E-UL scheduler
pmNoofRadioLinksSF4 the number of RLs used for the UL baseband pool with SF=4
pmNoofRadioLinksSF8 the number of RLs used for the UL baseband pool with SF=8
pmNoofRadioLinksSF16 the number of RLs used for the UL baseband pool with SF=16
pmNoofRadioLinksSF32 the number of RLs used for the UL baseband pool with SF=32
pmNoofRadioLinksSF64 the number of RLs used for the UL baseband pool with SF=64
pmNoofRadioLinksSF128 the number of RLs used for the UL baseband pool with SF=128
pmNoofRadioLinksSF256 the number of RLs used for the UL baseband pool with SF=256
pmNoULLimitEul the number of times a scheduling decision is taken to increase the hardware rate of an E-DCH user and there is a need to decrease the hardware rate for another D-CH user owing to UL hardware resource limitations
pmsetupattemptsSf4 the number of setup attempts for each GP for the UL baseband pool for SF4
pmsetupattemptsSf8 the number of setup attempts for each GP for the UL baseband pool for SF8
pmsetupattemptsSf16 the number of setup attempts for each GP for the UL baseband pool for SF16
pmsetupattemptsSf32 the number of setup attempts for each GP for the UL baseband pool for SF32
pmsetupattemptsSf64 the number of setup attempts for each GP for the UL baseband pool for SF64
pmsetupattemptsSf128 the number of setup attempts for each GP for the UL baseband pool for SF128
pmsetupattemptsSf256 the number of setup attempts for each GP for the UL baseband pool for SF256
pmsetupfailuresSf4 the number of setup failures for each GP for the UL baseband pool for SF4
pmsetupfailuresSf8 the number of setup failures for each GP for the UL baseband pool for SF8
pmsetupfailuresSf16 the number of setup failures for each GP for the UL baseband pool for SF16
pmsetupfailuresSf32 the number of setup failures for each GP for the UL baseband pool for SF32
pmsetupfailuresSf64 the number of setup failures for each GP for the UL baseband pool for SF64
pmsetupfailuresSf128 the number of setup failures for each GP for the UL baseband pool for SF128
pmsetupfailuresSf256 the number of setup failures for each GP for the UL baseband pool for SF256
pmNoodIbho the number of redistributions of RLs between RAX boards in the RBS (interboard handover) IBHO
PmApomcofUl the average RL usage of the maximum UL capacity, in percent
pmApromcOfRACHCap the average RACH usage of the maximum UL capacity in percent
pmApomcofRakeRecUsed the average rake receiver usage of the maximum UL capacity, in percent
pmHwCePoolEul total sum of Ces allocation on the UL Hardware by the E-UL scheduler
pmNoofRadioLinksSF4 the number of RLs used for the UL baseband pool with SF=4
pmNoofRadioLinksSF8 the number of RLs used for the UL baseband pool with SF=8
pmNoofRadioLinksSF16 the number of RLs used for the UL baseband pool with SF=16
pmNoofRadioLinksSF32 the number of RLs used for the UL baseband pool with SF=32
pmNoofRadioLinksSF64 the number of RLs used for the UL baseband pool with SF=64
pmNoofRadioLinksSF128 the number of RLs used for the UL baseband pool with SF=128
pmNoofRadioLinksSF256 the number of RLs used for the UL baseband pool with SF=256
pmNoULLimitEul the number of times a scheduling decision is taken to increase the hardware rate of an E-DCH user and there is a need to decrease the hardware rate for another D-CH user owing to UL hardware resource limitations
pmsetupattemptsSf4 the number of setup attempts for each GP for the UL baseband pool for SF4
pmsetupattemptsSf8 the number of setup attempts for each GP for the UL baseband pool for SF8
pmsetupattemptsSf16 the number of setup attempts for each GP for the UL baseband pool for SF16
pmsetupattemptsSf32 the number of setup attempts for each GP for the UL baseband pool for SF32
pmsetupattemptsSf64 the number of setup attempts for each GP for the UL baseband pool for SF64
pmsetupattemptsSf128 the number of setup attempts for each GP for the UL baseband pool for SF128
pmsetupattemptsSf256 the number of setup attempts for each GP for the UL baseband pool for SF256
pmsetupfailuresSf4 the number of setup failures for each GP for the UL baseband pool for SF4
pmsetupfailuresSf8 the number of setup failures for each GP for the UL baseband pool for SF8
pmsetupfailuresSf16 the number of setup failures for each GP for the UL baseband pool for SF16
pmsetupfailuresSf32 the number of setup failures for each GP for the UL baseband pool for SF32
pmsetupfailuresSf64 the number of setup failures for each GP for the UL baseband pool for SF64
pmsetupfailuresSf128 the number of setup failures for each GP for the UL baseband pool for SF128
pmsetupfailuresSf256 the number of setup failures for each GP for the UL baseband pool for SF256
pmNoodIbho the number of redistributions of RLs between RAX boards in the RBS (interboard handover) IBHO
PmApomcofUl the average RL usage of the maximum UL capacity, in percent
pmApromcOfRACHCap the average RACH usage of the maximum UL capacity in percent
pmApomcofRakeRecUsed the average rake receiver usage of the maximum UL capacity, in percent
Ericsson WCDMA Counters about TX Power
Tx Power Carrier Power
pmTransmittedCarrierPower transmitter carrier power measured at the TX reference point
pmDpchCodePowerSf4 The average power transmitted over the DPCH with SF=4
pmDpchCodePowerSf8 The average power transmitted over the DPCH with SF=8
pmDpchCodePowerSf16 The average power transmitted over the DPCH with SF=16
pmDpchCodePowerSf32 The average power transmitted over the DPCH with SF=32
pmDpchCodePowerSf64 The average power transmitted over the DPCH with SF=64
pmDpchCodePowerSf256 The average power transmitted over the DPCH with SF=256
pmSumOfHsScchUsedPwr HS-SCCH transmitted power per cell.If more than one HS-SCCH code is used, then the registered value is the sum of each individual value. 0-50.5 dbm.
pmTransmittedCarrierPowerNonHS the transmitted carrier power for all non high speed codes in the cell.25-50.5 dbm resolution of 0.5
pmNoOfTfc1OnFach1 the average transmitted output power for each GP on FACH1
pmNoOfTfc1OnFach2 the average transmitted output power for each GP on FACH2
pmNoOfTfc1OnFach3 the average transmitted output power for each GP on FACH3
pmCommonChPowerEul this counter is used to observe the total DL power used for the E-AGCH,E-RGCH and E-HICH in the cell.
pmTransmittedCarrierPower transmitter carrier power measured at the TX reference point
pmDpchCodePowerSf4 The average power transmitted over the DPCH with SF=4
pmDpchCodePowerSf8 The average power transmitted over the DPCH with SF=8
pmDpchCodePowerSf16 The average power transmitted over the DPCH with SF=16
pmDpchCodePowerSf32 The average power transmitted over the DPCH with SF=32
pmDpchCodePowerSf64 The average power transmitted over the DPCH with SF=64
pmDpchCodePowerSf256 The average power transmitted over the DPCH with SF=256
pmSumOfHsScchUsedPwr HS-SCCH transmitted power per cell.If more than one HS-SCCH code is used, then the registered value is the sum of each individual value. 0-50.5 dbm.
pmTransmittedCarrierPowerNonHS the transmitted carrier power for all non high speed codes in the cell.25-50.5 dbm resolution of 0.5
pmNoOfTfc1OnFach1 the average transmitted output power for each GP on FACH1
pmNoOfTfc1OnFach2 the average transmitted output power for each GP on FACH2
pmNoOfTfc1OnFach3 the average transmitted output power for each GP on FACH3
pmCommonChPowerEul this counter is used to observe the total DL power used for the E-AGCH,E-RGCH and E-HICH in the cell.
RANT Dropped and Blocked Calls Classification Summary
RANT Dropped and Blocked Calls Classification Summary
1 Introduction
2 Dropped Calls Classification
2.1 Missing Neighbours
2.2 Poor Coverage
2.3 Bad Radio Environment
2.4 Congestion
2.5 Not Radio
2.6 Equipment Fault
3 Blocked Calls Classification
3.1 Missing Neighbour
3.2 Poor RF (Bad Coverage and Radio Environment)
3.3 Equipment Fault (UE)
3.3.1 Security and Authentication Mode Failure
3.3.2 UE Freeze
3.4 Not Radio
3.4.1 Disconnect on RAB Setup
3.4.2 Resources Unavailable (Congestion)
3.4.3 UE Sensitivity Fault
3.5 Abnormal blocked calls
3.5.1 Unclassified - Unanswered RRC requests
3.5.2 Faulty Block Recording - Barred Network
3.5.3 Call Initialisation during L.U. signalling
1 Introduction
This blog describes some of the typical dropped/blocked call classifications encountered during several RAN Tuning Projects for WCDMA networks. The purpose of the document is for RAN Consultants to understand some of the problems to make the UE analysis and classification easier.
The analysis has been based on limited data (for example no UETR data or data based on similar tool, no usage of RBS and RNC tracers) and for this result there could be a deviation in the results. Some of these classifications are only a guideline and should be viewed merely as documenting the typical problem until the correct reason behind the dropped call is established.
All these dropped/blocked calls categories are adapted to the radio environment evaluation thresholds set up for the 3G RAN Tuning project in the post-processing tool.
In the table below are listed the main causes that must be considered during the analysis, with the explanation for each cause.
CLASSIFICATION CRITERIA
Poor Coverage The Drop occurs in regions where conditions CPICH RSCP and/or CPICH Ec/No are measured in critical values not suitable for a proper connection.
Bad Radio Environment Every drop that occurs when Best Server is Missing (Mostly in good CPICH RSCP conditions). The UE active set update cannot follow the quick coverage changes. In this case Pilot Pollution situations are included as well (3 cells in AS and more than 1 strong SCs is interfering the connection within a range of 5 dB - Ec/No basis evaluation).
Congestion Every drop that occurs when there are no more available radio resources for the connection. The network sends an RRC Connection Release when the RBS reaches the maximum available Power in DL.
Not Radio Every drop that occurs when the radio conditions are good, the logging equipment is working properly and the RRC connection release cause (marked usually as "Unspecified") could be attributed to a RBS/Network fault, (including UL UE power going to maximum even if the CPICH RSCP is measured at good values, crossed feeders causing false missing neighbours, crossed UL-DL feeders, wrong parameter settings that can affect accessibility/SHOs in the cell).
Equipment Fault Every drop that occurs when TEMS Investigation/UE are Blocking or Freezing and/or SW is crashing, so that it's not possible to maintain the connection.
Missing Neighbours Every drop that occurs when there are poor RSCP and/or Ec/No levels/quality on the Best Server/AS, with the contemporary possibility for the UE to perform a SHO on a better cell that is not declared as a Neighbour for the AS cells themselves.
2 Dropped Calls Classification
The main cases and dropped call causes are listed below.
2.1 Missing Neighbours
Every drop that occurs when there are poor RSCP and/or Ec/No levels/quality on the Best Server/AS, with the contemporary possibility for the UE to perform a SHO on a better cell that is not declared as a Neighbour for the AS cells themselves. An example of dropped call for missing neighbour problem is shown in figure below.
Problem Description: The Active Set best server is cell 61888 (SC = 205). During the call sector 62096 (SC = 293) becomes the strongest sector but is not added to the active set, as the two cells are not defined neighbours. This can be seen in the Serving/Active Set window in TEMS. The cell 62096 act as an increasing interferer until eventually the call is released. The release cause is classified as unspecified.
2.2 Poor Coverage
The Drop occurs in regions where conditions CPICH RSCP and/or CPICH Ec/No are measured in critical values not suitable for a proper connection. In the table below an example is shown.
Problem Description: In this case the RF environment as reported by the UE is very poor before the call is dropped. The best server RSCP=-127dBm and Ec/No=-32dB. The scanner also reports poor radio conditions for the same SC at the same instant i.e. RSCP = -11.97dBm and Ec/Io = -10.69dB. The last message sent is the UL Active Set Complete message sent by the UE. The UE then goes into idle mode.
2.3 Bad Radio Environment
Every drop that occurs when Best Server is Missing (Mostly in good CPICH RSCP conditions). The UE active set update cannot follow the quick coverage changes. In this case Pilot Pollution situations are included as well (3 cells in AS and more than 1 strong SCs is interfering the connection within a range of 5 dB - Ec/No basis evaluation).
Problem Description: The Active Set best servers are cells with SCs 49 and 303, and all MN (SCs 304, 179 and 180) are close to them on a RSCP basis (from –70dBm to –79 dBm). During the call UE is performing a continuous number of SHOs, affecting both the service continuity and the quality of the connection (low values of Ec/No on each cell). So, the Radio Environment is not suitable for a good connection and therefore the dropped call occurs. Sometimes the TEMS Inv. doesn’t show the event on the chart, like in this case, so it’s advisable to check the Events and Layer 3 messages: In the L3 table the RRC Connection Release DL corresponds (into the Event table) to an RRC Connection Abnormal Release with the specification “Unspecified”.
2.4 Congestion
Every drop that occurs when there are no more available radio resources for the connection. The network sends an RRC Connection Release when the RBS reaches the maximum available Power in DL. In the corresponding DL Layer 3 message “RRC Connection Release” when the drop happens, the release cause is clearly marked as “Congestion”. An example is shown in figure below.
Problem Description: In this case the radio environment doesn’t show any critical issue: the AS is full, and there is a Best Server cell (SC 352) with two more cells that are carrying the service. Also the MN set is good, and the Layer 3 messages sequence is regular.
The radio resource unavailability pops up suddenly after a certain number of fast SHOs, and an “RRC Connection Release” message from the network comes to interrupt the call. In the TEMS L3 messages window details the release cause is clearly marked as “Congestion”.
2.5 Not Radio
Every drop that occurs when the radio conditions are good, the logging equipment is working properly and the RRC connection release cause (marked usually as "Unspecified") could be attributed to a RBS/Network fault, (including UL UE power going to maximum even if the CPICH RSCP is measured at good values, crossed feeders causing false missing neighbours, crossed UL-DL feeders, wrong parameter settings that can affect accessibility/SHOs in the cell).
This case also includes the “UE Sensitivity” drop, as shown in figure below.
Problem Description: The radio environment as reported by the UE is very poor just before the call dropped i.e. Best server RSCP=-127dBm and Ec/No=-27dB. The scanner reports much better radio conditions for the same SC at the same instant i.e. RSCP =-93.57dBm and Ec/Io = -8.66dB. Although the drop is as a result of low RSCP as measured by the UE it should not be classified, as a poor coverage drop since the scanner indicates the radio conditions should be ok to maintain the call.
2.6 Equipment Fault
Every drop that occurs when TEMS Investigation/UE are Blocking or Freezing and/or SW is crashing, so that it's not possible to maintain the connection.
An example of UE freezing dropped call is shown in figure below.
Problem description: In the example the network sends a DL Measurement Control message and then the UE freezes. There are no further massages sent between the network and the UE. The RF environment was good at the time of the drop as can be seen from the scanner information i.e. RSCP =-82.72dBm and Ec/Io = -5.44dB.
3 Blocked Calls Classification
The main cases and blocked call causes are listed below. In this situation the cases of Blocked Calls are pretty equal to the corresponding ones in the dropped calls list. It’s advisable to consider that it is intended as “blocked call” a connection interrupted for the same problems shown in section 2 (with some obvious exceptions shown in the following paragraphs) and according the Classification Criteria table shown in section 1. It’s crucial to consider that the blocked call event always happens during the call setup phase.
Due to these differences, the classification for the blocked calls is different for the dropped calls’ one.
3.1 Missing Neighbour
Problem Description: An example of a blocked call caused by a missing neighbour is shown in figure above. The call is being set up on cell 49046 (SC = 387). During the set up sector 48007 (SC = 451) becomes the strongest sector but is not added to the active set as the two cells are not defined neighbours. This can be seen in the Serving/Active Set window in TEMS. The cell 48007 act as an increasing interferer until eventually the call itself is released. The release cause is classified as unspecified.
3.2 Poor RF (Bad Coverage and Radio Environment)
Problem Description: In this case the RF environment as reported by the UE is very poor when the UE attempts to initiate a call. The attempt is indicated by the event “Call Initialization” in TEMS Investigation, which is triggered at the start of a command sequence. The best server RSCP=-121dBm and Ec/No=-21dB. The scanner also reports poor radio conditions for the same SC at the same instant i.e. RSCP =-114.17dBm and Ec/Io = -11.29dB.
3.3 Equipment Fault (UE)
3.3.1 Security and Authentication Mode Failure
Problem Description: In this case there is a problem with the security and Authentication procedure, which causes the connection to be dropped and result in a blocked call. As can be seen in figure above the radio environment at the time of the blocked call is good i.e. Best server RSCP=-71dBm and Ec/No=-2dB.
The call is released normally during call set up and 6 seconds after the network sends the security command. There is a timer for the correct response to this security command, which is set to 6 seconds. This indicates a problem in the security and authentication response by the UE.
3.3.2 UE Freeze
Problem description: This type of dropped call classification is caused by the UE “freezing” which can be seen in figure below. In the example the UE sends a UL Active Set Update Complete message and then the UE freezes. There are no further massages sent between the network and the UE before the next call attempt, which is indicated by the Call initialisation event in TEMS Investigation. The RF environment was good at the time of the drop as can be seen from the scanner information i.e. RSCP =-94.17dBm and Ec/Io = -5.13dB.
3.4 Not Radio
3.4.1 Disconnect on RAB Setup
Problem description: In this case the radio environment is good as shown in figure above (i.e. Best server RSCP= -94dBm and Ec/No= -3dB). During call set up, after the “DL Call Proceeding” message the network sends a Disconnect message. This can be seen in the Layer 3 messages window below. The cause value is (127) Interworking, unspecified as shown in L3 message details window. The call is then released.
This case can include both DC Config Failure and RAB setup failure.
3.4.2 Resources Unavailable (Congestion)
Problem description: In this example the network sends a Disconnect message with the following message: cause value (47) Resources Unavailable, Unspecified. This can be seen in the Layer 3 messages window in figure above. The Disconnect message occurs after the Radio Bearer is set up. The radio environment is good at the time of the Disconnect message as seen in figure above.
Sometimes this example of blocked call can be also referred to Congestion problems in the measured cell.
3.4.3 UE Sensitivity Fault
Problem Description: In figure above, an example of a drop classified as UE sensitivity fault is shown. The radio environment as reported by the UE is very poor when the UE attempts to initiate a call (i.e. Best server RSCP=-122dBm and Ec/No=-18dB). The scanner reports much better radio conditions for the same SC at the same instant i.e. RSCP =-89.06dBm and Ec/Io = -2.65dB. Although the blocked call is as a result of low RSCP as measured by the UE it should not be classified, as a poor RF block since the scanner indicates the radio conditions should be sufficient to set up a call.
3.5 Abnormal blocked calls
3.5.1 Unclassified - Unanswered RRC requests
Problem description: In this example an RRC request is sent but the network never responds with an RRC connection setup message. It is not clear whether or not the network receives the RRC request. The radio environment in the downlink as seen by TEMS is good i.e. good RSPC, low CPICH Ec/No.
3.5.2 Faulty Block Recording - Barred Network
Problem description: This occurs when the UE attempts to initiate a call on a network other than the measured one (in our case MTN). In the serving/Active Set window in TEMS in figure above it can be seen that the DL UARFCN for the network the UE is camped on in idle mode is 10564. The example shows the case that happened for the Vodafone network (DL UARFCN 10712). DeskCat considers this a blocked call but since the blocked call does do not occur on the Vodafone network, it has to be excluded from our analysis.
3.5.3 Call Initialisation during L.U. signalling
Problem description: In this case the UE is involved in Location Update signalling. As seen in the RRC Connection Request message the establishment cause is registration and the Location Update request message is for Normal Location Updating. During the L.U. signalling a new call attempt is triggered by the command sequence in TEMS Investigation.
1 Introduction
2 Dropped Calls Classification
2.1 Missing Neighbours
2.2 Poor Coverage
2.3 Bad Radio Environment
2.4 Congestion
2.5 Not Radio
2.6 Equipment Fault
3 Blocked Calls Classification
3.1 Missing Neighbour
3.2 Poor RF (Bad Coverage and Radio Environment)
3.3 Equipment Fault (UE)
3.3.1 Security and Authentication Mode Failure
3.3.2 UE Freeze
3.4 Not Radio
3.4.1 Disconnect on RAB Setup
3.4.2 Resources Unavailable (Congestion)
3.4.3 UE Sensitivity Fault
3.5 Abnormal blocked calls
3.5.1 Unclassified - Unanswered RRC requests
3.5.2 Faulty Block Recording - Barred Network
3.5.3 Call Initialisation during L.U. signalling
1 Introduction
This blog describes some of the typical dropped/blocked call classifications encountered during several RAN Tuning Projects for WCDMA networks. The purpose of the document is for RAN Consultants to understand some of the problems to make the UE analysis and classification easier.
The analysis has been based on limited data (for example no UETR data or data based on similar tool, no usage of RBS and RNC tracers) and for this result there could be a deviation in the results. Some of these classifications are only a guideline and should be viewed merely as documenting the typical problem until the correct reason behind the dropped call is established.
All these dropped/blocked calls categories are adapted to the radio environment evaluation thresholds set up for the 3G RAN Tuning project in the post-processing tool.
In the table below are listed the main causes that must be considered during the analysis, with the explanation for each cause.
CLASSIFICATION CRITERIA
Poor Coverage The Drop occurs in regions where conditions CPICH RSCP and/or CPICH Ec/No are measured in critical values not suitable for a proper connection.
Bad Radio Environment Every drop that occurs when Best Server is Missing (Mostly in good CPICH RSCP conditions). The UE active set update cannot follow the quick coverage changes. In this case Pilot Pollution situations are included as well (3 cells in AS and more than 1 strong SCs is interfering the connection within a range of 5 dB - Ec/No basis evaluation).
Congestion Every drop that occurs when there are no more available radio resources for the connection. The network sends an RRC Connection Release when the RBS reaches the maximum available Power in DL.
Not Radio Every drop that occurs when the radio conditions are good, the logging equipment is working properly and the RRC connection release cause (marked usually as "Unspecified") could be attributed to a RBS/Network fault, (including UL UE power going to maximum even if the CPICH RSCP is measured at good values, crossed feeders causing false missing neighbours, crossed UL-DL feeders, wrong parameter settings that can affect accessibility/SHOs in the cell).
Equipment Fault Every drop that occurs when TEMS Investigation/UE are Blocking or Freezing and/or SW is crashing, so that it's not possible to maintain the connection.
Missing Neighbours Every drop that occurs when there are poor RSCP and/or Ec/No levels/quality on the Best Server/AS, with the contemporary possibility for the UE to perform a SHO on a better cell that is not declared as a Neighbour for the AS cells themselves.
2 Dropped Calls Classification
The main cases and dropped call causes are listed below.
2.1 Missing Neighbours
Every drop that occurs when there are poor RSCP and/or Ec/No levels/quality on the Best Server/AS, with the contemporary possibility for the UE to perform a SHO on a better cell that is not declared as a Neighbour for the AS cells themselves. An example of dropped call for missing neighbour problem is shown in figure below.
Problem Description: The Active Set best server is cell 61888 (SC = 205). During the call sector 62096 (SC = 293) becomes the strongest sector but is not added to the active set, as the two cells are not defined neighbours. This can be seen in the Serving/Active Set window in TEMS. The cell 62096 act as an increasing interferer until eventually the call is released. The release cause is classified as unspecified.
2.2 Poor Coverage
The Drop occurs in regions where conditions CPICH RSCP and/or CPICH Ec/No are measured in critical values not suitable for a proper connection. In the table below an example is shown.
Problem Description: In this case the RF environment as reported by the UE is very poor before the call is dropped. The best server RSCP=-127dBm and Ec/No=-32dB. The scanner also reports poor radio conditions for the same SC at the same instant i.e. RSCP = -11.97dBm and Ec/Io = -10.69dB. The last message sent is the UL Active Set Complete message sent by the UE. The UE then goes into idle mode.
2.3 Bad Radio Environment
Every drop that occurs when Best Server is Missing (Mostly in good CPICH RSCP conditions). The UE active set update cannot follow the quick coverage changes. In this case Pilot Pollution situations are included as well (3 cells in AS and more than 1 strong SCs is interfering the connection within a range of 5 dB - Ec/No basis evaluation).
Problem Description: The Active Set best servers are cells with SCs 49 and 303, and all MN (SCs 304, 179 and 180) are close to them on a RSCP basis (from –70dBm to –79 dBm). During the call UE is performing a continuous number of SHOs, affecting both the service continuity and the quality of the connection (low values of Ec/No on each cell). So, the Radio Environment is not suitable for a good connection and therefore the dropped call occurs. Sometimes the TEMS Inv. doesn’t show the event on the chart, like in this case, so it’s advisable to check the Events and Layer 3 messages: In the L3 table the RRC Connection Release DL corresponds (into the Event table) to an RRC Connection Abnormal Release with the specification “Unspecified”.
2.4 Congestion
Every drop that occurs when there are no more available radio resources for the connection. The network sends an RRC Connection Release when the RBS reaches the maximum available Power in DL. In the corresponding DL Layer 3 message “RRC Connection Release” when the drop happens, the release cause is clearly marked as “Congestion”. An example is shown in figure below.
Problem Description: In this case the radio environment doesn’t show any critical issue: the AS is full, and there is a Best Server cell (SC 352) with two more cells that are carrying the service. Also the MN set is good, and the Layer 3 messages sequence is regular.
The radio resource unavailability pops up suddenly after a certain number of fast SHOs, and an “RRC Connection Release” message from the network comes to interrupt the call. In the TEMS L3 messages window details the release cause is clearly marked as “Congestion”.
2.5 Not Radio
Every drop that occurs when the radio conditions are good, the logging equipment is working properly and the RRC connection release cause (marked usually as "Unspecified") could be attributed to a RBS/Network fault, (including UL UE power going to maximum even if the CPICH RSCP is measured at good values, crossed feeders causing false missing neighbours, crossed UL-DL feeders, wrong parameter settings that can affect accessibility/SHOs in the cell).
This case also includes the “UE Sensitivity” drop, as shown in figure below.
Problem Description: The radio environment as reported by the UE is very poor just before the call dropped i.e. Best server RSCP=-127dBm and Ec/No=-27dB. The scanner reports much better radio conditions for the same SC at the same instant i.e. RSCP =-93.57dBm and Ec/Io = -8.66dB. Although the drop is as a result of low RSCP as measured by the UE it should not be classified, as a poor coverage drop since the scanner indicates the radio conditions should be ok to maintain the call.
2.6 Equipment Fault
Every drop that occurs when TEMS Investigation/UE are Blocking or Freezing and/or SW is crashing, so that it's not possible to maintain the connection.
An example of UE freezing dropped call is shown in figure below.
Problem description: In the example the network sends a DL Measurement Control message and then the UE freezes. There are no further massages sent between the network and the UE. The RF environment was good at the time of the drop as can be seen from the scanner information i.e. RSCP =-82.72dBm and Ec/Io = -5.44dB.
3 Blocked Calls Classification
The main cases and blocked call causes are listed below. In this situation the cases of Blocked Calls are pretty equal to the corresponding ones in the dropped calls list. It’s advisable to consider that it is intended as “blocked call” a connection interrupted for the same problems shown in section 2 (with some obvious exceptions shown in the following paragraphs) and according the Classification Criteria table shown in section 1. It’s crucial to consider that the blocked call event always happens during the call setup phase.
Due to these differences, the classification for the blocked calls is different for the dropped calls’ one.
3.1 Missing Neighbour
Problem Description: An example of a blocked call caused by a missing neighbour is shown in figure above. The call is being set up on cell 49046 (SC = 387). During the set up sector 48007 (SC = 451) becomes the strongest sector but is not added to the active set as the two cells are not defined neighbours. This can be seen in the Serving/Active Set window in TEMS. The cell 48007 act as an increasing interferer until eventually the call itself is released. The release cause is classified as unspecified.
3.2 Poor RF (Bad Coverage and Radio Environment)
Problem Description: In this case the RF environment as reported by the UE is very poor when the UE attempts to initiate a call. The attempt is indicated by the event “Call Initialization” in TEMS Investigation, which is triggered at the start of a command sequence. The best server RSCP=-121dBm and Ec/No=-21dB. The scanner also reports poor radio conditions for the same SC at the same instant i.e. RSCP =-114.17dBm and Ec/Io = -11.29dB.
3.3 Equipment Fault (UE)
3.3.1 Security and Authentication Mode Failure
Problem Description: In this case there is a problem with the security and Authentication procedure, which causes the connection to be dropped and result in a blocked call. As can be seen in figure above the radio environment at the time of the blocked call is good i.e. Best server RSCP=-71dBm and Ec/No=-2dB.
The call is released normally during call set up and 6 seconds after the network sends the security command. There is a timer for the correct response to this security command, which is set to 6 seconds. This indicates a problem in the security and authentication response by the UE.
3.3.2 UE Freeze
Problem description: This type of dropped call classification is caused by the UE “freezing” which can be seen in figure below. In the example the UE sends a UL Active Set Update Complete message and then the UE freezes. There are no further massages sent between the network and the UE before the next call attempt, which is indicated by the Call initialisation event in TEMS Investigation. The RF environment was good at the time of the drop as can be seen from the scanner information i.e. RSCP =-94.17dBm and Ec/Io = -5.13dB.
3.4 Not Radio
3.4.1 Disconnect on RAB Setup
Problem description: In this case the radio environment is good as shown in figure above (i.e. Best server RSCP= -94dBm and Ec/No= -3dB). During call set up, after the “DL Call Proceeding” message the network sends a Disconnect message. This can be seen in the Layer 3 messages window below. The cause value is (127) Interworking, unspecified as shown in L3 message details window. The call is then released.
This case can include both DC Config Failure and RAB setup failure.
3.4.2 Resources Unavailable (Congestion)
Problem description: In this example the network sends a Disconnect message with the following message: cause value (47) Resources Unavailable, Unspecified. This can be seen in the Layer 3 messages window in figure above. The Disconnect message occurs after the Radio Bearer is set up. The radio environment is good at the time of the Disconnect message as seen in figure above.
Sometimes this example of blocked call can be also referred to Congestion problems in the measured cell.
3.4.3 UE Sensitivity Fault
Problem Description: In figure above, an example of a drop classified as UE sensitivity fault is shown. The radio environment as reported by the UE is very poor when the UE attempts to initiate a call (i.e. Best server RSCP=-122dBm and Ec/No=-18dB). The scanner reports much better radio conditions for the same SC at the same instant i.e. RSCP =-89.06dBm and Ec/Io = -2.65dB. Although the blocked call is as a result of low RSCP as measured by the UE it should not be classified, as a poor RF block since the scanner indicates the radio conditions should be sufficient to set up a call.
3.5 Abnormal blocked calls
3.5.1 Unclassified - Unanswered RRC requests
Problem description: In this example an RRC request is sent but the network never responds with an RRC connection setup message. It is not clear whether or not the network receives the RRC request. The radio environment in the downlink as seen by TEMS is good i.e. good RSPC, low CPICH Ec/No.
3.5.2 Faulty Block Recording - Barred Network
Problem description: This occurs when the UE attempts to initiate a call on a network other than the measured one (in our case MTN). In the serving/Active Set window in TEMS in figure above it can be seen that the DL UARFCN for the network the UE is camped on in idle mode is 10564. The example shows the case that happened for the Vodafone network (DL UARFCN 10712). DeskCat considers this a blocked call but since the blocked call does do not occur on the Vodafone network, it has to be excluded from our analysis.
3.5.3 Call Initialisation during L.U. signalling
Problem description: In this case the UE is involved in Location Update signalling. As seen in the RRC Connection Request message the establishment cause is registration and the Location Update request message is for Normal Location Updating. During the L.U. signalling a new call attempt is triggered by the command sequence in TEMS Investigation.
Discontinuous Reception (DRX)
UEs in idle mode may use Discontinuous Reception (DRX) in order to reduce power consumption.
Using DRX, the UE only listens to the PICH at certain predefined times i.e. at its Paging Occasions.
Each PICH frame consists of a number of Paging
Indicators (PIs).
Every time the UE listens to the PICH, it gets information about if it should wake up (PI=1) and also read the SCCPCH carrying paging information or continue to sleep (PI=0).
Active Set Update Complete
Active Set Update Complete (UL-DCCH)
Time : 15:25:45.140
Vendor Header
Length : 22
Log Code (Hex) : 0x412F
HW Timestamp : (55547251.56 ms) 15:25:47.252
1.25 ms fraction : 0.25
CFN : 96
1.25 ms counter : 715782037801
Logical channel : (1) Uplink DCCH
Rb_Id : 2
Message length : 6
integrityCheckInfo
messageAuthenticationCode : 2900130401 (ACDC7A61 hex)
rrc-MessageSequenceNumber : 3
rrc-TransactionIdentifier : 0
Active Set Update
Active Set Update (DL-DCCH)
Time : 15:25:45.140
Vendor Header
Length : 30
Log Code (Hex) : 0x412F
HW Timestamp : (55547246.56 ms) 15:25:47.247
1.25 ms fraction : 0.25
CFN : 92
1.25 ms counter : 715782037797
Logical channel : (3) Downlink DCCH
Rb_Id : 2
Message length : 14
integrityCheckInfo
messageAuthenticationCode : 3987711173 (EDAFA4C5 hex)
rrc-MessageSequenceNumber : 2
ActiveSetUpdate : r3
activeSetUpdate-r3
rrc-TransactionIdentifier : 0
maxAllowedUL-TX-Power : 21
rl-AdditionInformationList
RL-AdditionInformationList :
[0 ] :
primaryCPICH-Info
primaryScramblingCode : 410
dl-DPCH-InfoPerRL
DL-DPCH-InfoPerRL : fdd
pCPICH-UsageForChannelEst : mayBeUsed
dpch-FrameOffset : 37376
dl-ChannelisationCodeList
DL-ChannelisationCodeList :
[0 ] :
sf-AndCodeNumber
SF512-AndCodeNumber : sf128
sf128 : 7
tpc-CombinationIndex : 0
dummy : False
Setup
Setup
Time : 15:25:45.125
Vendor Header
Length : 39
Log Code (Hex) : 0x713A
HW Timestamp : (55547127.72 ms) 15:25:47.128
1.25 ms fraction : 0.18
CFN : 36
1.25 ms counter : 715782037702
Direction : (1) To network
Message length : 22
Transaction identifier : 0
Protocol discriminator : (3) Call control; call related SS messages
Message type : 5
Bearer capability 1
Radio channel requirement : (3) The MS supports at least full rate speech version 1 and half rate speech version 1. The MS has a greater preference for full rate speech version 1.
Coding standard : (0) GSM standardized coding as described below
Transfer mode : (0) circuit mode
Information transfer capability : (0) speech
Coding : (0) octet used for extension of information transfer capability
CTM : (0) CTM text telephony is not supported
Speech version indication : (4) GSM full rate speech version 3
Octet(s) 3b etc :
[0 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (2) GSM full rate speech version 2
[1 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (0) GSM full rate speech version 1
[2 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (5) GSM half rate speech version 3
[3 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (1) GSM half rate speech version 1
Called party BCD number
Type of number : (0) Unknown
Numbering plan identification : (1) ISDN/telephony numbering plan (Rec. E.164/E.163)
Number : 8775796837
CC Capabilities
Maximum number of supported bearers : 1 bearer supported
ENICM : (0) The mobile station does not support Enhanced Network-initiated In-Call Modification
PCP : (0) The mobile station does not support the Prolonged Clearing Procedure.
DTMF : (1) The mobile station supports DTMF.
Maximum number of speech bearers : 0
Time : 15:25:45.125
Vendor Header
Length : 39
Log Code (Hex) : 0x713A
HW Timestamp : (55547127.72 ms) 15:25:47.128
1.25 ms fraction : 0.18
CFN : 36
1.25 ms counter : 715782037702
Direction : (1) To network
Message length : 22
Transaction identifier : 0
Protocol discriminator : (3) Call control; call related SS messages
Message type : 5
Bearer capability 1
Radio channel requirement : (3) The MS supports at least full rate speech version 1 and half rate speech version 1. The MS has a greater preference for full rate speech version 1.
Coding standard : (0) GSM standardized coding as described below
Transfer mode : (0) circuit mode
Information transfer capability : (0) speech
Coding : (0) octet used for extension of information transfer capability
CTM : (0) CTM text telephony is not supported
Speech version indication : (4) GSM full rate speech version 3
Octet(s) 3b etc :
[0 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (2) GSM full rate speech version 2
[1 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (0) GSM full rate speech version 1
[2 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (5) GSM half rate speech version 3
[3 ] :
Coding : (0) octet used for extension of information transfer capability
Speech version indication : (1) GSM half rate speech version 1
Called party BCD number
Type of number : (0) Unknown
Numbering plan identification : (1) ISDN/telephony numbering plan (Rec. E.164/E.163)
Number : 8775796837
CC Capabilities
Maximum number of supported bearers : 1 bearer supported
ENICM : (0) The mobile station does not support Enhanced Network-initiated In-Call Modification
PCP : (0) The mobile station does not support the Prolonged Clearing Procedure.
DTMF : (1) The mobile station supports DTMF.
Maximum number of speech bearers : 0
Security Mode Complete
Security Mode Complete (UL-DCCH)
Time : 15:25:45.109
Vendor Header
Length : 34
Log Code (Hex) : 0x412F
HW Timestamp : (55547017.62 ms) 15:25:47.018
1.25 ms fraction : 0.10
CFN : 80
1.25 ms counter : 715782037614
Logical channel : (1) Uplink DCCH
Rb_Id : 2
Message length : 18
integrityCheckInfo
messageAuthenticationCode : 248707371 (0ED2F92B hex)
rrc-MessageSequenceNumber : 1
rrc-TransactionIdentifier : 0
ul-IntegProtActivationInfo
rrc-MessageSequenceNumberList
RRC-MessageSequenceNumberList :
[0 ] : 0
[1 ] : 0
[2 ] : 0
[3 ] : 0
[4 ] : 0
rb-UL-CiphActivationTimeInfo
RB-ActivationTimeInfoList :
[0 ] :
rb-Identity : 1
rlc-SequenceNumber : 0
[1 ] :
rb-Identity : 2
rlc-SequenceNumber : 6
[2 ] :
rb-Identity : 3
rlc-SequenceNumber : 2
[3 ] :
rb-Identity : 4
rlc-SequenceNumber : 0
Security Mode Command
Security Mode Command (DL-DCCH)
Time : 15:25:45.109
Vendor Header
Length : 41
Log Code (Hex) : 0x412F
HW Timestamp : (55547016.38 ms) 15:25:47.016
1.25 ms fraction : 0.10
CFN : 60
1.25 ms counter : 715782037613
Logical channel : (3) Downlink DCCH
Rb_Id : 2
Message length : 25
integrityCheckInfo
messageAuthenticationCode : 438826780 (1A27F71C hex)
rrc-MessageSequenceNumber : 1
SecurityModeCommand : r3
securityModeCommand-r3
rrc-TransactionIdentifier : 0
securityCapability
cipheringAlgorithmCap-spare15 : 0
cipheringAlgorithmCap-spare14 : 0
cipheringAlgorithmCap-spare13 : 0
cipheringAlgorithmCap-spare12 : 0
cipheringAlgorithmCap-spare11 : 0
cipheringAlgorithmCap-spare10 : 0
cipheringAlgorithmCap-spare9 : 0
cipheringAlgorithmCap-spare8 : 0
cipheringAlgorithmCap-spare7 : 0
cipheringAlgorithmCap-spare6 : 0
cipheringAlgorithmCap-spare5 : 0
cipheringAlgorithmCap-spare4 : 0
cipheringAlgorithmCap-spare3 : 0
cipheringAlgorithmCap-uea2 : 0
cipheringAlgorithmCap-uea1 : 1
cipheringAlgorithmCap-uea0 : 1
integrityProtectionAlgorithmCap-spare15 : 0
integrityProtectionAlgorithmCap-spare14 : 0
integrityProtectionAlgorithmCap-spare13 : 0
integrityProtectionAlgorithmCap-spare12 : 0
integrityProtectionAlgorithmCap-spare11 : 0
integrityProtectionAlgorithmCap-spare10 : 0
integrityProtectionAlgorithmCap-spare9 : 0
integrityProtectionAlgorithmCap-spare8 : 0
integrityProtectionAlgorithmCap-spare7 : 0
integrityProtectionAlgorithmCap-spare6 : 0
integrityProtectionAlgorithmCap-spare5 : 0
integrityProtectionAlgorithmCap-spare4 : 0
integrityProtectionAlgorithmCap-spare3 : 0
integrityProtectionAlgorithmCap-uia2 : 0
integrityProtectionAlgorithmCap-uia1 : 1
integrityProtectionAlgorithmCap-spare0 : 0
cipheringModeInfo
cipheringModeCommand
CipheringModeCommand : startRestart
startRestart : uea1
rb-DL-CiphActivationTimeInfo
RB-ActivationTimeInfoList :
[0 ] :
rb-Identity : 1
rlc-SequenceNumber : 0
[1 ] :
rb-Identity : 2
rlc-SequenceNumber : 11
[2 ] :
rb-Identity : 3
rlc-SequenceNumber : 0
[3 ] :
rb-Identity : 4
rlc-SequenceNumber : 0
integrityProtectionModeInfo
integrityProtectionModeCommand
IntegrityProtectionModeCommand : startIntegrityProtection
integrityProtInitNumber
Binary string (Bin) : 11011111111100101101110010100011
[0 ] : 1
[1 ] : 1
[2 ] : 0
[3 ] : 1
[4 ] : 1
[5 ] : 1
[6 ] : 1
[7 ] : 1
[8 ] : 1
[9 ] : 1
[10] : 1
[11] : 1
[12] : 0
[13] : 0
[14] : 1
[15] : 0
[16] : 1
[17] : 1
[18] : 0
[19] : 1
[20] : 1
[21] : 1
[22] : 0
[23] : 0
[24] : 1
[25] : 0
[26] : 1
[27] : 0
[28] : 0
[29] : 0
[30] : 1
[31] : 1
integrityProtectionAlgorithm : uia1
cn-DomainIdentity : cs-domain
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