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Thread: Handover failure

  1. #1
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    Default Handover failure

    Guys, les amis

    I noticed during one of my drive tests that I get handover failure but the call didn’t drop…..how come we got handover failure and the call didn’t drop?

    Please explain to me as I’m newbie in optimization
    Thanks a lot

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  3. #2
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    Default

    Quote Originally Posted by justdream View Post
    Guys, les amis

    I noticed during one of my drive tests that I get handover failure but the call didn’t drop…..how come we got handover failure and the call didn’t drop?

    Please explain to me as I’m newbie in optimization
    Thanks a lot
    there is difference between call drop and HO failure if you got HO failure mobile will try to return to last serving cell if it can see good level from it.

    As I think

  4. #3
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    Default

    a ho fail is a event to say in the network has a problem in a adj defition or simply the target cell no have resource to allow the HO. But the continuos HO fail can be generate a Drop when the call are dragged.

    A drop call maybe is a effect to the continuos HO fail, buto HO fail no ever end in a Drop call

  5. #4
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    Default Neighbour list

    what about the Neighbour list????
    I need some strategy for Neighbour list please

  6. #5
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    Default

    try to read this :http://www.4shared.com/file/107284137/40685b17/Book.html

    maybe can answer your question....

  7. #6
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    Default

    Quote Originally Posted by justdream View Post
    Guys, les amis

    I noticed during one of my drive tests that I get handover failure but the call didn’t drop…..how come we got handover failure and the call didn’t drop?

    Please explain to me as I’m newbie in optimization
    Thanks a lot
    I would recommend you to learn MOC and MTC Procedures, Handover Procedures, Location Update Procedure, IMSI/TMSI Assignments etc!!

    Handover Failures doesn't mean the call drop !! They both are different things with different timers and counters !! Both are having different reasons to occur !! Once you know the basics then you would probably find the difference between the two, cheers
    Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.

    Regards,
    Venom


  8. #7
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    Default Handover failure + TEMS

    Friends, How can I use TEMS to show me (the target cell name, BCCH, CID.....any information) in case of handover failure ?

    To know which cell I use trying to handver then it failed
    Thanks a lot

  9. #8
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    Default

    Quote Originally Posted by justdream View Post
    Friends, How can I use TEMS to show me (the target cell name, BCCH, CID.....any information) in case of handover failure ?

    To know which cell I use trying to handver then it failed
    Thanks a lot
    I'd suggest you to see the big picture by comparing your drive test result (the HO failures) and the cell-to-cell HO statistic, because sometimes what you find from drive test doesn't necessarily a real problem and you'll end up wasting your time in investigating something that's insignificant.

  10. #9
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    Default call drop

    Thanks Triple-x but this handover failure leds to call drop, so I wan tto know which cell the mobile tried to hand to it (using TEMS)

  11. #10
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    Default

    see the measurement reports in layer3 just before the ho failure.....it will help u answer ur query....

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