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Ericsson CSSR Formula

Viewing 12 posts - 16 through 27 (of 27 total)
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  • 26th August 2009 at 08:48 #54348
    AliAsgher
    Guest

    It is recommended to calculate CSSR from Drive Test. Although for Ericsson systems the recommended CSSR formula is

    CSSR = 100 * ([TCASSALL + TFCASSALLSUB + THCASSALL + THCASSALLSUB]/ TASSALL) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT) * (CCALLS-CMSESTAB)/CCALLS) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT)* (CNDROP – CNRELCONG)/CMSESTAB)

    Hence it can be explained as

    CSSR = TCH Assignment * (1-SD Establishment for TCH Calls) * (1-SD Drops for TCH Calls)

    25th May 2010 at 09:45 #54349
    Mucky
    Guest

    CSSR is standard to measure any call attempt which can be sucessfully be a call setup. CSSR is formula that usually used for DT KPI.

    31st May 2010 at 13:17 #54350
    Iwans
    Guest

    Hi Pak Mucky,

    CMIIW
    CSSR one of item in kpi which is belong to SD_DROP & SD_BLOCK

    5th August 2010 at 14:30 #54351
    Cha1
    Guest

    What are the reasons for low Originating call setup Success Rate (Low originating CSSR) in CDMA

    7th September 2010 at 22:29 #54352
    kashif
    Guest

    what is the huawei cssr formulae?

    28th December 2010 at 15:57 #54353
    GOWTHAMAN.P
    Guest

    WAT IS MEANT BY CSSR AND DCR?

    15th April 2011 at 06:50 #54354
    Thavam
    Guest

    I want to know the expansion for the terms mentioned in following formula.
    CSSR = 100 * ([TCASSALL + TFCASSALLSUB + THCASSALL + THCASSALLSUB]/ TASSALL) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT) * (CCALLS-CMSESTAB)/CCALLS) * (1 – ([RAOREQ + RAAPAG + RACALRE]/CNROCNT)* (CNDROP – CNRELCONG)/CMSESTAB)

    20th May 2011 at 15:14 #54355
    waqas
    Guest

    CSSR stands for call set up success rate……it is one of the KPI’s used for measuring the performance of network

    4th April 2012 at 08:18 #54356
    Ibrahima
    Guest

    What is the process ? can you give me one example please ?

    11th May 2012 at 22:57 #54357
    chris
    Guest

    Hello

    Need a Favor please

    Any idea about the 2 Below KPI

    – Average uplink CE congestion rate
    – Power Congestion
    • Which input to use
    • Any Measurement Protocol
    • Minimum Level
    • Formula to use

    Many Thanks
    Chris

    17th May 2012 at 07:16 #54358
    Bijoy
    Guest

    Hi Chris
    Could you pls specify the vendor.

    Br\\
    Bijoy

    1st August 2022 at 17:56 #102842
    mohammed
    Guest

    Hi,

    The below formula is it correct to calculate CSSR from MSS level
    CSSR= ( MO Assignment Success Times (times)+MT Assignment Success Times (times))/(MT Paging Response Times (times)+MO CM Service Request Times (times))*100

    Your comment is highly appreciated

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