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  • #67785 Reply

    how many lac assign for one BSC?

    If one lac or more lac assign to one bsc then what will problem??

    #67786 Reply


    there’s not a rule here. you can have 1 or 10 LAC per BSC.
    The only thing you MUST avoid is sharing one LAC over several BSC.
    For example, never do this:
    BSC A = LAC 1, LAC 2, LAC 3
    BSC B = LAC 1, LAC 2, LAC 3
    BSC C = LAC 1, LAC 2, LAC 3

    That would totally overload your BSC paging processing capacity and perhaps your SS7 capacity on A interface as well.

    Then if you put only 1 huge LAC in one BSC, there could be another kind of problem : PCH congestion on the Air interface.
    A good bet is to split your BSC in 2 to 4 LACs. That’s just a rule of thumb, it really depends on many many parameters.

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