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Gs interface

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  • #54701 Reply
    Host
    Guest

    hi all, how the mobile would know about the presence of the Gs interface to perform a combined GPRS/IMSI attach? thanks in advance

    #54702 Reply
    pix
    Guest

    The MS doesn’t know it, but the BSS does. So the BSS will handle an IMSI ATTACH from the MS as a “COMBINED GPRS/IMSI ATTACH” –> The MS will actually communicate with the SGSN, instead of the MSC directly.

    I don’t know all the details, if anyone can elaborate …

    #54703 Reply
    fedem
    Guest

    Also the MS should check the NMO (=Network Mode of Operation) inside “GPRS Cell Options”/SysInfo3.
    Based on this value and its MS Class, the mobile has to know if it has to perform a combined attach.
    ciao,
    f.

    #54704 Reply
    Pan
    Guest

    Yes, MS know NMO from system info (from SI13\GPRS Cell Options). When MS want to perform any mobility management procedures (e.g. Attach/Detach) and NMO=I, it should indicate to network what Type of Attach it doing in attach request (only GPRS attach, GPRS attach with already IMSI Attached or Combined GPRS / IMSI attach ).

    #54705 Reply
    pix
    Guest

    oh, ok, i thought it was working differently. thanks for the info !

    #54706 Reply
    Ubaid
    Guest

    We are receiving call clearing on Cause value 47 in our network. any Idea what could be the problem

    #54707 Reply
    Bijoy
    Guest

    Hi Ubaid
    What is the clear code Info?

    Br\\
    Bijoy

    #54708 Reply
    Ubaid
    Guest

    Sorry Guys It was my first time on this forum. This clear code is not related to Gs interface. It is related to call Clearing. The desccription is
    “This cause is used to report a resource unavailable event only when no other cause in the resource unavailable class applies.”

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