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Equipment Failure for HO_REQUEST

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  • 1st May 2010 at 04:56 #62446
    Ram
    Guest

    Hello,
    We are facing a inter-MSC HO problem in which the source MSC rejects the HO_REQ from source BSC for HO_REQ to cell in target BSC with another MSC. The HO_REQ has the actual CGI of the target cell and the MSC replies in BSSMAP message as “Equipment Failure” . This case happens not all the day. definitions are perfect in both BSC s and MSC s. Both BSC and MSC are Ericsoon node.

    Can anyone suggest the possible meaning of Equipment Failure. And possible methods to analyse the actual case.

    thanks,
    ram.

    1st May 2010 at 20:37 #62447
    Bijoy
    Guest

    Hi Ram
    If the CIC allocated in the Handover Request message received by the target BSC is marked as
    BLOCK or UA, the target BSC will respond to the MSC with a Handover Failure message with the
    cause value “Equipment Failure”.

    Please check the CIC’s of Ater & A-interface of the Target MSC/BSC,either there is a mismatch or some CIC’s are blocked from one end.

    Br\\
    Bijoy

    3rd May 2010 at 08:02 #62448
    Ram
    Guest

    Hi Bijoy,
    Thanks for reply. Actually am not able to look for any CIC value in HO_REQ from BSC side. And moreover the prepare HO between MSC s is not visible. And MSC replies with HO_REJ and cause equipment failure. Pls clarify,

    thanks,
    ram

    3rd May 2010 at 09:04 #62449
    Bijoy
    Guest

    Ram
    The CIC information shold be there in the HO Request message.This message is sent from the Target MSC to the Target BSS via the relevant SCCP connection to indicate that the MS is to be handed over to that BSS.

    If you cant find it,check the entire A- & Ater mapping for the target MSC & BSC.

    Br\\
    Bijoy

    Br\\
    Bijoy

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