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SDCCH dimensioning tool

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  • #49113 Reply
    mirinda
    Guest

    Hi,
    Can anyone support me with SDCCH dimension guidlines and/or tool?

    Thanks,
    Mirinda

    #49114 Reply
    aso
    Guest

    dear
    for SDCCH dimension there as I know there are two ways two make dimension for SDCCH .
    1- it depends on number on TRX for example from 1 to 2 TRX put one SDCCH/8.
    2- from 3 to 4TRX put 2 SDCCH/8
    3- from 5 to 6TRX put 3 SDCCH/8.
    or there is onther efficient way that you have to know the ratio TCH traffic to the SDCCH traffic which acceptable value is between 10 to 40 % also you have to take consideration half rate penetration in to consideration.
    hope it helps you

    #49115 Reply
    Johnny
    Guest

    As general rule for every 2 Trx
    u allocate 1 SDCCH .If u go by
    erlang calculation For the number
    of TCH and GOS it gives u the number of subscribers and also for SDCCH u get the erlangs(GOS/operator) and then number of subs .Theoretically the number of
    subs for TCH and SDCCH shall be closed.

    #49116 Reply
    Anass RAISSOUNI
    Guest

    Hi,

    if it is about redesign, you may use counters and indicators data, and erlangB method to assess the number of SDC channels.
    and the ways that aso has given compute a round up solution.

    Regards,

    Anass

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Reply To: SDCCH dimensioning tool
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