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SDH for BTS

Viewing 5 posts - 1 through 5 (of 5 total)
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  • #45086 Reply
    Alexander
    Guest

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

    #45087 Reply
    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.

    #45088 Reply
    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?

    #45089 Reply
    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 🙂

    #45090 Reply
    VICKY GROVER
    Guest

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

Viewing 5 posts - 1 through 5 (of 5 total)
Reply To: SDH for BTS
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