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Poor Downlink Quality

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  • #61802 Reply

    I m working on newly launched GSM network. the Whole hardware is of Nokain Siemens network .As we are adding the TRX in the Site For capacity enhancement. The Rx Level and Downlink quality becoms poor .

    Kindly Provide me the Solution

    #61803 Reply

    Dear Kesaar,

    Bad RXQual in DL has many factors.

    Those are : 1. Weak signal
    2. Interference
    Weak signal ==> please check TA of the site as to know how far the site coverage is and also to know the user distribution. If in TA analysis most users are in far/low level signal, then u need to consider to bypass the TRX.

    Interference ==> Please check from TA, whether its coverage is overshoot towarsd other site or not. Also check the frequecy allocated in the site (check if adjacent/co-channel happen).
    If this site is in the main city, usually the problem is interference. Check also by drive test whether all MAlist channels (hoping channel) also have interference. If yes, then you may need to change Malist freq, or add malist frequecncy and change its MAIO (if FLP).



    #61804 Reply

    Dear s
    i have check all above thing are ok but yet i have low downlink quality please your support

    #61805 Reply
    sudhanshu shekhar

    how we resolve single tch cr drop due to poor ul rx level

    #61806 Reply
    Afaq Manzar

    DL quality issue ksa solve kra

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