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Cross feeder connectionns

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  • #44187 Reply
    Vitaly
    Guest

    Hi Guys,

    During drive-test we found many cross feeder connections in our GSM network 🙁
    Does anyone know if it possible to use stsatistics data (not drive-test) for finding such issues?
    We use Nokia & Ericsson

    Thanks

    #44188 Reply
    tch
    Guest

    which network is it ???
    maybe you can check HO failure …

    #44189 Reply
    Vitaly
    Guest

    It’s 2G network
    We use Nokia & Ericsson

    #44190 Reply
    Patrick
    Guest

    Normally statistic is not good when you have cross feeder connection (HO failure,EATCH,TCH failure, …)

    If you have 2 TRX and 2 antenna (TRX Bypass), you can lock one and switch MBCCH on the second. Wait and see the evolution on statistic.

    #44191 Reply
    Kuma
    Guest

    Hi,
    If there is only Rx feeder swap between two cells you will suffer of high number of dropped calls and HO failures due to weak UL (the cell is running without diversity). You can check also the path ballance of the cell.
    If there is Tx feeders swap the HO performance will be low, due to incorect BA list. You can chech it by the HO statistics. If the best NB of cell A is cell B, but the most outgoin HOs are to cell C which is in another direction, it is possible to be due to feeder swap.

    #44192 Reply
    akefa
    Guest

    Kuma,

    I dont think that Rx swap between two sectors will make the cell working without diversity. diversity device just increases the signal strength sensitivity to the weak signals, that is all.

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Reply To: Reply #44190 in Cross feeder connectionns
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