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HO duration

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  • #60704 Reply
    TmBo
    Guest

    Hello Pix,

    Plz how long (average) take a HO inter-MSC ? Normal HO ? HO Inter-BSC ?

    Thanks

    #60705 Reply
    Pix
    Guest

    TmBo,

    I don’t remember… I could try to find the values next week. Maybe someone else knows that ?

    -pix

    #60706 Reply
    DaviD
    Guest

    Hi!
    First of all, as you might know there are several tipes of HO according to their cause of origin: level,quality,distance, power budget etc. For each of them there are specific time period in BSC database called Handover averaging window. So for each of this tipe of HO the above mentioned values of level,quality,distance, power budget are measured first and if any of them exceeds the threshold specified for level,quality,distance, power budget then this tipe of HO is executed. To find out what are the averaging periods you must see the values of HOAVLEV,HOAVQUAL,HOAVDIST,HOAVPWRBin your database. Those parameter names are for the Siemens BSS.

    #60707 Reply
    Firas
    Guest

    i guess these would be filters and measured by SAACH unit, right?

    #60708 Reply
    Pix
    Guest

    Firas : yes

    David : TmBo is probably talking about the “outage” due to the HO procedure, or perhaps the duration between the HO Request and the HO Command. His post is a little ambiguous though, I agree.

    The outage is not linked to the average window, it is due to the time the MS takes to move from the old TCH to the new TCH.

    The duration between the request and the command depends on where is lcoated the target cell : same BSC, different BSC, different MSC, ..

    Cheers,
    pix

    #60709 Reply
    Firas
    Guest

    so dos it mean that even if the filters are set to some values the connectivity and higher nodes processing might cause different delays?

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Reply To: Reply #60706 in HO duration
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