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SD DROP and POOR CSSR

Viewing 11 posts - 1 through 11 (of 11 total)
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  • #47733 Reply
    Jha
    Guest

    Hi All n speciallly PIx

    I have a site which is having the stats as follows:
    daet CSSR TCH drp SD HSR
    26/05 96.95 2.58 1.76 98.15
    27/05 95.93 2.23 1.33 97.56
    28/05 42.23 2.45 44.05 74.23
    29/05 23.53 3.46 56.89 51.25
    30/05 26.04 2.88 56.2 53.97
    31/5 19.78 3.77 60.81 48.97
    1/6 30.45 7.53 53.54 55.13
    2/6 27.86 10.07 55.34 55.13
    3/6 45.48 5.61 49.42 61.75
    4/6 28.42 9.6 53.59 52.71
    5/6 23.15 9.77 53.70 52.716
    This is the condition of the site.I have done everything for the site like BCCH TRX Swap,frequencyPlan check,swap chaeck,Alarms for DIP.

    Nothing has worked.
    PLs suggest wht to do

    #47734 Reply
    Rajiv Gujral
    Guest

    hi,

    how bout the TCH Assign Fail and SD ASFR, and also if u have checked flicks on the Media. As your SD Drop is high so it might be with the problem with BCCH TRX or Combiner on that end and either VSWR and low power of the same. Frequency plan will not let the SD Drop to tht extend. Check the alarms and media flicks.

    #47735 Reply
    Jha
    Guest

    dear Rajiv,
    I have got one alarm named
    DIGITAL PATH UNAVIALIBILITY FAULT on the dip and there is no alrms regarding flicks.Also I have changed the BCCH THX.Also there is the same condition of drops on all sector,so the conclusion i have is there is some issue in hardware side.
    I have also done Hard and soft reset of the site.swap chech has also been done.There is Intra Handover failure ratio is aslo high.
    If you need more information regarding this then please let me know.
    regards
    Jha

    #47736 Reply
    Rajiv Gujrral
    Guest

    Dear Jha,

    I think its a alarm because of some fault at the Switch end. Better if u check ur Vendor Specific Manual. I dont think there is any problem at the RF end. Another thing that u can do is to check the BER on the Media for that site.

    Regards

    #47737 Reply
    Jha
    Guest

    Dear Rajiv,
    Thx for the suggestion.The media is creating the problem.
    What is the reason for High Intra Handover failure??can u suggest something regarding this
    Regards,
    Jha

    #47738 Reply
    Rajiv Gujral
    Guest

    Dear Jha,

    Is it a cell specific or BSC specific problem. For a site specific problem u can look for the TCH Allocation failure (Congestion) and Assignment failure on that cell.

    #47739 Reply
    Geet Mukhra
    Guest

    Hi Rajiv,
    I fully agree with you.

    #47740 Reply
    Jha
    Guest

    Dear rajiv,

    The problem is cell specific and There is no issue of congestion.

    regards,
    niraj Kumar

    #47741 Reply
    Rajiv Gujral
    Guest

    Dear Jha,

    Check the TCH Assignment Failure for that cell excluding and including Handover. If it is high then might be any of ur TRX is faulty

    #47742 Reply
    Jha
    Guest

    Dear rajiv,
    Thx for ur suggestin.I will do the same and revert back to you

    regards,
    Jha

    #47743 Reply
    kumar
    Guest

    We are using the Huawei bts in GSM 1800 but unable to meet the kpi for the none of the towns can u suggest anything

Viewing 11 posts - 1 through 11 (of 11 total)
Reply To: SD DROP and POOR CSSR
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