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Thread: CDMA Radio Network Optimization Plot Analysis (using Actix)

  1. #31
    Member Reputation: 71
    Join Date
    2010-03-16
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    Quote Originally Posted by lejun View Post
    Everyone, share your experience please
    With me, i usually analyzer CDMA logfile by some steps:
    1. See KPIs:
    In CDMA we have 4 essential KPI: Ec/Io, Rx, Tx, Forward FER.
    Firstly, we must define the value of these KPI, you can see in this thread.
    Or you can see in book: RF200, find in http://www.howcdmaworks.com/
    It is a wonderfull book in CDMA optimization network field.
    By seeing KPI, we know some problem in our network
    In some situation, we can define problem clearly from these KPIs
    For example:
    Ec/Io poor, Rx poor: coverage problem, then place some sites or change antenna...
    Ec/Io poor, Rx good: pilot poluttion, it is a complex problem, especially in a large city.
    ....
    Sometime, we need see some PN in area that have problems and active set PN...
    And many other situation, you can see problem and solution in RF200 or in attached file
    2. See events data
    Failed calls, dropped calls, handoff...
    3. Find the cause of these events
    We must understand signalling messages, critical parameters in these messages, call processing by message... RF200 Please
    Actix have a powerful function: synchronize events data with signalling message, map... It will help us.
    In next post, i will have a example for more clearly
    If i have some mistake, please correct it for me
    BR
    its a good website but its impossible to get the tutorials

  2. #32
    Member Reputation: 171
    Join Date
    2009-01-01
    Posts
    162


    Default try this link May be it's easier

    Quote Originally Posted by honhungoc View Post
    its a good website but its impossible to get the tutorials
    http://www.howcdmaworks.com/drophelp2.htm

  3. #33
    Member Reputation: 66
    Join Date
    2008-08-19
    Posts
    71


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    welldone, deep analize,

    just add, you can try to decrese pilot gain, from 225 to 222, or you can check Cell radius, maybe too big for urban area, ( 384 or 512)

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