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Location update procedure

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  • #66946 Reply

    Hi all,i have simple question.
    Lets assume: in one region it was implemented new frequency plan. In result on one particular cell appears hight traffic from LU.LACs are the same.What will be the reason?
    Thank you

    #66947 Reply

    hi JE,

    it’s probably one or few faulty MS which are going crazy. the only way to investigate this is to trace the A interface and correlate the IMSI or IMEI with the phone brand/model.

    improbable causes:
    – too short value for T3212
    – bad LAC design : check that the neighbours do have the same LAC indeed
    – MS attaching to your network because their own network is down (collocated BTS from another operator is down, for example)


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