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MAIO and HSN usage

Viewing 13 posts - 1 through 13 (of 13 total)
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  • 12th November 2010 at 08:02 #64949
    Saheed
    Guest

    Dear all,
    I am a drive test guy working with a telecom company in Nigeria, pls I will really appreciate if anybody can give me detail explanation on how MAIO and HSN work, also I want to know how to know which of the trx one while one is using while on a call in a network running on SFH, before we were using grouped frequency and we know the trx one is using with allocated ARFCN.

    12th November 2010 at 09:38 #64950
    pix
    Guest

    Hi Saheed,

    During drive test, you can identify the trx on which you are doing the call thanks to the MAIO. Each trx of the cell has a unique MAIO.

    only exception : If the hopping mode is “synthetized freq hopping”, and if the call is on the TRX1 (bcch), then you will see a fixed frequency on this TRX. Indeed, the trx1 is not hopping in case of synthetized frequency hopping.
    In case of baseband hopping (bbh), the trx1 is hopping like any other trx.

    For detailed explanation about hopping, hsn, maio, etc, please use the search function.

    Regards,
    pix

    12th November 2010 at 11:55 #64951
    navc
    Guest

    Antenna hopping comes under which mode synthesised or baseband

    13th November 2010 at 06:13 #64952
    pix
    Guest

    hello,

    antenna hopping is independant from the frequency hopping mode. It works with bbh and sfh, and nh as well.

    regards
    pix

    13th November 2010 at 21:51 #64953
    Brother
    Guest

    by the way the first question of a new dt guy is most of the time hsn and maio

    16th November 2010 at 06:20 #64954
    Sreni,
    Guest

    MAIO is the numbr which tels from which freq. From give MA(Mobile allocation) list for sector hoping has to be startd..eg: 0 means it wil start with first freq. To hop
    and HSN tells the sequence in which the frequencies from MA list are allowed to hop (0 to 63) 0 for cyclic hoping nd 1 to 63 for random hoping…
    Regards.

    3rd May 2012 at 23:26 #64955
    Happy
    Guest

    Hi,

    So its mean MAIO will not use in case of BBH use..

    Thanks

    4th May 2012 at 11:45 #64956
    pix
    Guest

    hi,

    MAIO could be used if the system allows it (i think ALU allows it) but is not useful. It doesn’t serve any purpose.

    (unless you are using a synchronized network, but that has never been done before AFAIK, the feature is too recent)

    Regards
    pix

    5th May 2012 at 19:49 #64957
    Happy
    Guest

    Hi Pix,

    Thank You its mean in BBH MAIO or HSN values will not affect.

    How could i know whether the network are synchronized.

    Regards
    Happy

    5th May 2012 at 20:38 #64958
    Bijoy
    Guest

    !!!!!!!!

    6th May 2012 at 06:27 #64959
    pix
    Guest

    hi,

    yes, no effect of maio and hsn in case of BBH

    bijoy -> i can do better : !!!!!!

    7th May 2012 at 18:12 #64960
    Bijoy
    Guest

    Well Pix
    If you insist,let me explain.

    In BBH,two Hopping groups has to be defined with two different HSNs for a cell with BBH.All radio time slots (RTSL-0), except the BCCH time slot, on the BTS belong to Group 1,rest all RTSL belong to Group 2 .Also,MAIOs has to be different between same RTSLs in the same hopping Group.

    This is as per Ericsson,Nokia & Huawei Standards.

    Br\\
    Bijoy

    7th May 2012 at 18:52 #64961
    pix
    Guest

    bijoy,

    I’m glad I insisted ! I totally forgot about this.

    Let me say it so I won’t ever forget it again :
    In BBH, MAIO’s are used to avoid intracell interferences.

    Thx guru 😉

    Pix

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