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Thread: ameliorate CSSR 2G

  1. #1
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    Default ameliorate CSSR 2G

    Hello Friends,
    Somebody it is it, how I could ameliorate CSSR on techonogie Alcatel 2G Beforehand thank you for your help
    Best Regards

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  3. #2
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    Default

    u must know that cssr in Alcatel is computed as (1-sd drop)*(1-ass tch fail) so u must tune those two indicator ( sd drop and tch ass fil) :
    1-sd drop tuning : u must differenciate sd drop : bss, or radio in case of radio u can tune fréquency change , change sd to other trx or enable ho sd parameter.
    2- tch ass fial : chek cong tch tuning by increasing capacity : DR, FDR, HR...

  4. #3
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    For me CSSR = (SDCCH Seizure SR) * (1 - SDCCH drop rate) * (TCH Normal Assignment SR)

    thanks for your response, I'll check the next week.
    BR

  5. #4
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    Default

    ok, as you know. CSSR= 1- CSF ( call setup failure ), so if you improve the CSSR that similar decrease the CSF, right ?
    Call setup failure can be categorised as follow :
    Failure befor assignment (SDCCH RF loss, MSC rejection, user clearning,...)
    Block TCH assignment ( Insufficient TCH resources)
    Failed Assignment ( Failure to assign to TCH due to RF reason, eg. Interference )

    don't forget click thank and reputation.

    ps : click thank and reputation, i will share you the interesting doccument about this problem

  6. #5
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    Default CSSR 2G BSS Alcatel

    Hi guys,

    there is a document explaining how to improve CSSR KPI in Alcatel BSS


    don't forget click thank and reputation

    Regards

    Nabil
    Attached Files Attached Files

  7. #6
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    Default

    Quote Originally Posted by nabil el haddani View Post
    Hi guys,

    there is a document explaining how to improve CSSR KPI in Alcatel BSS


    don't forget click thank and reputation

    Regards

    Nabil
    Thanks for show./.

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