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Abis over IP over E1

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  • #69063 Reply
    Mer
    Guest

    HI

    plz, can you help me to found a formula to calculate the max number of TRX that one E1 can support if we use IP over E1 for Abis interface.

    BR.

    #69064 Reply
    Master
    Guest

    Hi

    I found this rules in ZTE Dimensioning Guidance for GSM, I hope it can help you:

    Abis Interface:

    -B Abis =B AbisCS+B AbisPS
    -B Abis: Bandwidth of Abis interface.
    -B AbisCS: Bandwidth of AbisCS interface.
    -B AbisPS: Bandwidth of AbisPS interface.
    • BAbisCS= (IE_CS_2G×Vcs_2G+I_TRX×Vsig_TRX)/(1-CAbisCS)/RelayB
    • BAbisPS= IMCS9_2G×VMCS9_2G/(1-CAbisPS)/RelayB
    In which:
    IE_CS_2G: CS Traffic (Erl)
    Vcs_2G: Rate of 2G Voice (downlink).
    I_TRX: TRX Number
    Vsig_TRX: Average Signalling BW per TRX
    IMCS9_2G: MCS9 channel Number
    VMCS9_2G: Rate of MCS9 Channel(downlink).
    CAbisCS / CAbisPS: Transmission overhead for CS /PS service;
    RelayB: Utilization of interface

    🙂

    #69065 Reply
    Mer
    Guest

    many thnx Mr Master

Viewing 3 posts - 1 through 3 (of 3 total)
Reply To: Abis over IP over E1
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