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Extended Erlang B for GSM

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  • #33302 Reply

    I am working for a GSM operator dealing with BTS dimensioning.
    Recently I discovered that the Erlang B table is not aplicable in our case, as the BSC has an internal queue, allowing a call to retry ~7 seconds to get a TCH before to be rejected.
    The trade off is longer call setup time vs lower investment in capacity.
    I developed some formulas to forecast the correct number of TRU’s for a given traffic and GOS, but I want a graph to show the link between the call setup time and the GOS.
    Can somebody help me?

    #33303 Reply

    Hi Andritoiu

    I am new to this traffic Engeering. Can u send me some document which discribes the BTS dimensioning.

    Can contact me in mail



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