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SDCCH block

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  • #68414
    SRK
    Guest

    Hi pix

    could you plz guide as to how the SDCCH blocks is getting calculated interms of Call flow in GSM .

    Is the SDCCH attempt = sending of SABM by MS =CM service request by BSS to MSC .

    The reason for asking is post CM service request ,MSC authentication starts and i want to know that before the MSC is getting involved ,SDCCH attempts are calculated or not.

    May sound silly but still i require your help here and quickly too.

    Thanks

    #68415
    pix
    Guest

    hi,
    sdcch blocking is counted when the SDCCH is requested by the MS, but the BSC could not find any SDCCH channel.

    -> SDCCH attempt = Channel Request with cause establishment = call, sms, lu, etc (everything but data channel request)
    -> SDCCH block = BSC refusal (internal / no message)

    regards,
    pix

    #68416
    SRK
    Guest

    Thanks pix.

Viewing 3 posts - 1 through 3 (of 3 total)
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