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Same Cell IDs different LAC

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  • #53891 Reply
    paraHO
    Guest

    Could two cells in GSM network operate with same Cell ID number but different LAC without issues?

    #53892 Reply
    pix
    Guest

    it depends what is your cell element identifier in your O&M databases. If each cell is defined per LAC/CI, then that’s possible.

    For instance, in Alcatel-Lucent, there is 2 modes of identification (in RNO, NPA and NPO, for instance): either per CI or per LAC/CI.
    First solutions (only CI), if there are 2 identical CI’s in the network, the NPO will detect a duplicate CI. But the cells are still operational from a telecom point of view.

    #53893 Reply
    Ram
    Guest

    For a cell identification, the complete CGI has to be considered in which even though the CellID is similar, the LAC will differ and ultimately the cell identity will also differ.

    #53894 Reply
    paraHO
    Guest

    solved prob. thnx pix and Ram

    #53895 Reply
    Dell
    Guest

    Hi,
    if two cells, one in GSM and one in UMTS, have the same Cell Id but different LAC, in the same area, could that be a problem?
    Best Regards,
    Dell

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