Gsm bss network kpi (sdcch congestion Rate) Optimization Manual


Feedbacks on High SDCCH Congestion Rate



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03 GSM BSS Network KPI SDCCH Congestion

6Feedbacks on High SDCCH Congestion Rate


The SDCCH congestion rate can be obtained through the analysis of the traffic statistics. Therefore, if the SDCCH congestion rate on site is too high, send a feedback about the relevant traffic statistics to the headquarters.
The information that needs to be sent is shown as follows:

        1. The configuration files (.DAT files) of the faulty cell or BSC, and the version number of the BSC software and BTS software;

        2. The alarm logs of the faulty cell;

        3. The RSL tracing data of the faulty cell;

        4. The interference measurement report of the faulty cell (TRX-level);

        5. The list of the cells with high SDCCH congestion rate, and the traffic statistics (cell-level) of the faulty cell (including the congestion rate, signaling availability and traffic volume)



Appendix Relevant Traffic Counters to BSC6000 SDCCH Congestion Rate


BSC-Level

Cell-Level

TRX-Level

SDCCH Seizure Requests per BSC

R3300A: Channel Activation Attempts in Immediate Assignment Procedure (SDCCH)

R4400A: Attempted Immediate Assignments (SDCCH)

Failed SDCCH Seizures due to Busy SDCCH per BSC

R3300B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (SDCCH)

R4400B: Successful Immediate Assignments (SDCCH)

Successful SDCCH Seizures per BSC

R3300C: Channel Activation Timeouts in Immediate Assignment Procedure (SDCCH)

R4430A: Attempted Handovers (SDCCH)

Call Drops on SDCCH per BSC

R3330A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure (SDCCH)

R4430B: Completed Handovers (SDCCH)

Traffic Volume on SDCCH per BSC

R3330B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (SDCCH)

S4310D: Uplink Quality during Radio Link Failure (SDCCH)

Available SDCCHs per BSC

R3330C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (SDCCH)

S4330D: Downlink Quality during Radio Link Failure (SDCCH)

Configured SDCCHs per BSC

R3340A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (SDCCH)

S4300D: Uplink Level during Radio Link Failure (SDCCH)

Congestion Ratio on SDCCH per BSC

R3340B: CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (SDCCH)

S4320D: Downlink Level during Radio Link Failure (SDCCH)

Call Drop Ratio on SDCCH per BSC

R3340C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (SDCCH)

S4350D: Radio Link Failures (SDCCH)

SDCCH Availability per BSC

R3350A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (SDCCH)

S4340D: TA during Radio Link Failure (SDCCH)

 

R3340B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (SDCCH)

AS4310D: Mean Uplink Quality during Radio Link Failure (SDCCH)

 

R3340C: Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (SDCCH)

AS4330D: Mean Downlink Quality during Radio Link Failure (SDCCH)

 

A3030A: Call Setup Indications (MOC Non SMS) (SDCCH)

AS4300D: Mean Uplink Level during Radio Link Failure (SDCCH)

 

A3030B: Call Setup Indications (MOC SMS) (SDCCH)

AS4320D: Mean Downlink Level during Radio Link Failure (SDCCH)

 

A3030C: Call Setup Indications (MTC) (SDCCH)

AS4200A:Mean Number of SDCCHs in Interference Band 1

 

A3030D: Call Setup Indications (Emergency Call) (SDCCH)

AS4200B: Mean Number of SDCCHs in Interference Band 2

 

A3030E: Call Setup Indications (Call Re-establishment) (SDCCH)

AS4200C: Mean Number of SDCCHs in Interference Band 3

 

A3030F: Call Setup Indications (Location Updating) (SDCCH)

AS4200D: Mean Number of SDCCHs in Interference Band 4

 

A3030G: Call Setup Indications (IMSI Detach) (SDCCH)

AS4200E: Mean Number of SDCCHs in Interference Band 5

 

A3030H: Call Setup Indications (PS Service) (SDCCH)

 

 

A3030I: Call Setup Indications (SS) (SDCCH)

 

 

A3030J: Call Setup Indications (LCS) (SDCCH)

 

 

A3030K: Call Setup Indications (Others) (SDCCH)

 

 

H3500: Outgoing Inter-RAT Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry)

 

 

H3510: Outgoing Inter-RAT Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry)

 

 

H3240: Number of Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (SDCCH)

 

 

H3040: Number of Internal Intra-Cell Handover Detection Messages Received by BSC (SDCCH)

 

 

H3440: Incoming External Inter-Cell Handover Detection Messages Received by BSC (SDCCH)

 

 

H3600: Incoming Inter-RAT Inter-Cell Handover Requests (SDCCH)

 

 

H3520: Failed Outgoing Inter-RAT Inter-Cell Handovers (SDCCH) (Excluding Directed Retry)

 

 

S3010A: MRs on Signaling Channels (SDCCH) (M900/850 Cell)

 

 

S3010B: MRs on Signaling Channels (SDCCH) (M1800/1900 Cell)

 


2022-04-01

HUAWEI Confidential

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