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AMRFR

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #60791 Reply
    Prabeen
    Guest

    Hi,

    Could any one of u explain me about AMRFR and how to implement it in my network.

    We use Ericsson BTS.

    #60792 Reply
    Yousuf
    Guest

    Hi,

    Adaptive multi rate, gives good speech quality at low SS, increase your retainability consequently traffic increase and lower the TCH drop rate.
    You need to purchase AMR licenses from E\\.

    #60793 Reply
    Prabeen
    Guest

    But when should i use AMRFR and AMRHR?

    #60794 Reply
    Thomas Tukai
    Guest

    Adaptive Multi Rate (AMR) is a speech and channel codec for both half rate and full rate. By adapting the codec rate to the radio conditions the speech quality is enhanced. At low C/I, a large amount of channel coding is applied and less speech coding. When the C/I increases the speech coding is increased and the channel coding is decreased.

    Both the BTS (uplink ) and the MS (downlink) continuously measures the radio quality (C/I) and based on these measurements the codec rate is changed. AMR requires support in all network nodes, i.e. MSC, BSC, BTS and MS and AMR is only supported in cells where all TRUs are AMR capable.

    #60795 Reply
    safar
    Guest

    Hi,

    by putting amr in network capacity point of view any gain?

    #60796 Reply
    AliAsgher
    Guest

    @Thomas Tukai
    If I am not wrong, this is a line by line copy from Alex. 🙂 hehehe

Viewing 6 posts - 1 through 6 (of 6 total)
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