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SDH for BTS

Viewing 5 posts - 1 through 5 (of 5 total)
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  • 26th May 2006 at 21:34 #45086
    Alexander
    Guest

    Please help me.
    How I can calculate all trafic
    from base station(5)(voice, gprs).
    Its need for SDH circle

    26th May 2006 at 23:19 #45087
    Pix
    Guest

    for Abis transmission ? you have to define how many Abis timeslots are used per BTS. Usually:

    one cell with 4 TRX = 9 Abis ts
    one BTS with 3 cells = 9×3 Abis ts + 1 Abis ts = 28 Abis ts
    And you have to add one Abis ts per Abis link
    So in the end a BTS 3×4 = 29 Abis timeslots for voice only.
    For reference, one full Abis link = 32 timeslots.

    Then you must top up the Abis timeslots reserved for GPRS, which is a very complicate matter.

    27th May 2006 at 20:11 #45088
    Alexander
    Guest

    Ok, thank you
    I should choose level STM. Therefore I should count all traffic – which goes from BTS and which comes from outside of (PSTN, ISDN) to ring SDH.
    Can you know as approximately to consider coming of outside of the traffic?

    28th May 2006 at 19:21 #45089
    Alexander
    Guest

    I have certainly books on SDH, but these are bases. To them it is not written particularly about application SDH
    on networks of mobile operators.
    I shall search 🙂

    27th November 2015 at 07:53 #45090
    VICKY GROVER
    Guest

    Give me complete information abi=out the SDH and PDH BTS

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