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Ericsson counter

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #50059 Reply
    alfred
    Guest

    Can anyone tell me if there is a separate counter for Location Update between any two LAC? If yes, what is the counter name? Many thanks.

    #50060 Reply
    Chirag Sethi
    Guest

    I want to know about “AMR”, its functionality, basic structure.

    #50061 Reply
    pix
    Guest

    AMR : adaptation of the codec of the voice, depending on the Air-interface radio conditions.

    If good RXQUAL : codec with low protection but good useful kb/s
    If bad RXQUAL : codec with high protection but low useful kb/s

    Pix

    #50062 Reply
    Chirag Sethi
    Guest

    How protection is provided…
    through changing modulation techniques or some other ways?

    #50063 Reply
    liujun
    Guest

    remember the timer for Location Update is T3212 in msc and bsc

    #50064 Reply
    Pix
    Guest

    Chirag,

    The overall throughput is fixed (22kbit/s). What can change is the ratio useful / protection.
    This is done by using different codec for the voice :
    12kb/s
    10kb/s
    7kb/s
    5kb/s
    etc…

    The modulation is still the same : GMSK.

    Regards,
    Pix

Viewing 6 posts - 1 through 6 (of 6 total)
Reply To: Ericsson counter
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