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Call Setup Success Rate

Viewing 15 posts - 1 through 15 (of 18 total)
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  • 29th December 2005 at 14:32 #43560
    Navin
    Guest

    Ours is a multivendor gsm n/w where the latest eqpt is from nortel.We seem to have some problem in analysing stats with pro-optima (Stat Machine for nortel gsm).
    1)Most of the sites are showing more than 100% Call_setup_success_rate which is not true
    2)TCH_Blocking and SD Blocking showing 0 but complaints from field shows that are there are congestion in the given sites.

    30th December 2005 at 13:33 #43561
    Muhammed
    Guest

    We have the same problem too.Can anybody offer some suggestion.

    5th January 2006 at 23:20 #43562
    t28
    Guest

    it’s simple, you both are using BAD formulas/counters to count quality indicators !!!
    you have to study some counters then suggest formulas correctly …

    6th January 2006 at 06:57 #43563
    Tech Man
    Guest

    I should agree with T28. Please check your formulas and counters.

    6th January 2006 at 08:04 #43564
    madhu
    Guest

    1. the formula for calculating Call Completion Ratio is
    CCR= (CCS with answer(Out) + CCS Subs Busy+CCS Unanswered)/ Out going Call Seizure

    2.ASR(O.G)= CCS with Answer/Out
    going Call Seizure

    ASR(I.C)=CCS with Answer/Calls Carreied I.C

    Regards
    madhu

    6th January 2006 at 08:15 #43565
    Prabhu
    Guest

    Hi Navin
    1)100% setup is good that means ur BTS and BSC are working fine now you have to check the congestion in the “A interface” this is not reflected in your performance I guess.So please check the this out.
    2)TCH and SD blockings is measured only on “Abis Interface”.
    3)Though you get a SD u may not get a TCH from the MSC. So please do check this out

    Regards
    Prabhu

    6th January 2006 at 10:41 #43566
    slim
    Guest

    the problem may be not the formula, the values which uploaded from OMCR are not correct. So u have to chekh the incoming file from OMCR.

    12th January 2006 at 05:18 #43567
    Nitin Kh
    Guest

    Prabhu is right ..
    The congestion on the A interface might be the reason…

    Regards,
    Nitin

    14th January 2006 at 08:31 #43568
    jood
    Guest

    Right:
    you have to check A-bis & A, by the related protocols analyser & (post proccesed the values) & export it to yuor OMC.

    14th January 2006 at 09:50 #43569
    Praveen
    Guest

    One C7 Link can catter how many E1s

    19th January 2006 at 19:15 #43570
    DJ
    Guest

    Arnd 131/2 E1s.

    Rgds

    25th January 2006 at 19:56 #43571
    cybhert
    Guest

    someone said it is 128 E1s for one C7 link…yup congestion on the signallink links may add to this.. even though if you have adequate circuits on the BSC side if there is a high traffic on the signalling on the MSC side surely connection(call set-up or sms transactions) will be bad..

    Good Luck…

    27th January 2006 at 08:13 #43572
    tufail
    Guest

    what is 1X1, 1X2 etc in Frequency planning.. need help

    6th February 2006 at 17:37 #43573
    Edmund
    Guest

    What is the difference between Call Completion Rate and Call Setup Success Rate. Thanks

    7th February 2006 at 10:51 #43574
    yrrah
    Guest

    To me a Call Setup Success Rate is when you get a TCH when you initiate a call.
    Call Completion Rate is when you get your TCH and when you have finished, you release your TCH. It is a KPI that can allow you to know the rate of good end-to-end call you have on the network.

    Regards.

    yrrah

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