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MAIO and HSN

Viewing 9 posts - 1 through 9 (of 9 total)
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  • #55671 Reply
    Awacs
    Guest

    Please tell me what is MAIO and HSN…..It’s so damn confusing…If MAIO=6 and HSN=42 then what would be the tme interval between two hops and with which frequency a cell will start to hop,Thanx

    #55672 Reply
    pix
    Guest

    time interval is always 1 TDMA frame.
    Each TDMA frame is sent over a new frequency.

    Starting frequency: each TRX will start on the frequency which is located at the position number “MAIO” in the list of frequencies “MA LIST”. The MA list is a range of frequencies f1, f2, f3, …

    Problem is you don’t know how the MA list iw arranged, because it is randomly arranged (based on the number HSN. Suffice to say that a TRX with MAIO=1 and a TRX with MAIO=2 will start with different frequencies.
    At TDMA=0, TRX1 = f1, TRX2=f2
    At TDMA=1, TRX1 = f2, TRX2=f3
    At TDMA=2, TRX1 = f3, TRX2=f4

    But if you set MAIO = 1 on TRX 1 and MAIO = 10 on TRX 2, this is what you’ll get:
    At TDMA=0, TRX1 = f1, TRX2=f10
    At TDMA=1, TRX1 = f2, TRX2=f11
    At TDMA=2, TRX1 = f3, TRX2=f12

    and so on.

    #55673 Reply
    Awacs
    Guest

    So this means that only frames hop….. timeslots in a frame have nothing to do with hopping?…….Thanx a lot Pix.

    #55674 Reply
    Pix
    Guest

    With default settings in SFH, all timeslots in the frame are using the same frequency.

    There is one exception though, in BBH : the timeslot 0 of each TRX uses different frequency than timeslots 1 to 7.
    … but only for BBH.

    For SFH, it could be possible to define different hopping sequences for each timeslot, but that’s:
    1/ terribly difficult to configure
    2/ absolutely useless (who said dumb?)

    #55675 Reply
    Awacs
    Guest

    Thanx a lot man….but i m still confused abt HSN and Hopping load:(

    #55676 Reply
    Pix
    Guest

    Awacs,

    Well, I’m not confused (am I ??… 🙂 )

    If I can help, let me know.

    #55677 Reply
    uji
    Guest

    maio is used 2 decide the starting frequency.
    hsn is used 2 decide the hopping sequence

    #55678 Reply
    SFH
    Guest

    Hi
    Send us yr Email address, I will send u short and nice SFH doc.,

    Regards

    #55679 Reply
    uji
    Guest

    my email address is ufq_10@hotmail.com

Viewing 9 posts - 1 through 9 (of 9 total)
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