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Radio contact lost with the MS

Viewing 5 posts - 1 through 5 (of 5 total)
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  • #65877 Reply
    Serg
    Guest

    Good afternoon!
    We on a network have a following problem: on Gb
    Transaction Type: RADIO-STATUS (BSSGP Transaction) c Radio cause value:Radio contact lost with the MS.
    Whether who faced the given problem, if yes as have solved a problem. Who can will prompt where to search, on what interface?

    #65878 Reply
    pix
    Guest

    hi serg,

    in RADIO-STATUS…
    the MS goes out of coverage and is lost: this condition is signalled by setting the Radio Cause
    value to “Radio contact lost with MS”

    Basically, you should check the radio interface. Check QoS indicators in NPO, check drive-tests… good rxlev, good rxqual, good neighbours, …

    regards
    pix

    #65879 Reply
    Serg
    Guest

    hi, PIX!

    In the relation good rxlev, good rxqual, good neighbors of questions doesn’t arise, since the given reason is present at different honeycombs, during different time frames (loading of the data immediately was thus checked being at most BTS). In a cell exposed gprsMaxNumberPDCHRes = 7 or 14, but RADIO-STATUS (BSSGP Transaction) c Radio cause value:Radio contact lost with the MS is present. Loading Abis – 70 % in a maximum.
    PPXU are loaded Prime Time =48 %, Total Time =58 %
    Whether Можел to be the reason in adjustments BSC or probably there are no other resources.
    p.s. During time contact lost MS, at once produced an outgoing call, MS answers.

    #65880 Reply
    Pix
    Guest

    Serg,

    It is difficult to understand your text. Are you doing an automatic translation ?

    Back to GPRS : the problem comes from radio quality. The quality can be bad for GPRS connection and be good for Voice connection, there is no paradox here.

    Check your RC retransmission rate, check your MCS usage, check your TBF Drop rate, their causes.
    Check the TCH Establishment failure causes.

    Regards
    pix

    #65881 Reply
    pix
    Guest

    typo error:
    RC retransmission ==> RLC retransmission

Viewing 5 posts - 1 through 5 (of 5 total)
Reply To: Radio contact lost with the MS
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