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Thread: Drop Call due to MSRFPCI

  1. #1
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    Post Drop Call due to MSRFPCI

    Hello Friends,and Senior Engineer..............
    I have problem in Optimization 2G SIEMENS, I get Drop call due to timer MSRFPCI..... so, What shold i do for this????


    Thanks,

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  3. #2
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    Quote Originally Posted by februaryku View Post
    Hello Friends,and Senior Engineer..............
    I have problem in Optimization 2G SIEMENS, I get Drop call due to timer MSRFPCI..... so, What shold i do for this????


    Thanks,
    Intercell handovers with loss of connection:
    The relationships between
    – Timer BSCT8 and the term NY1*T3105 and
    – Timer BSCT8 and timers TTRAU, TSYNC, TSYNCDL
    determine whether this measurement also counts the number of internal intercell
    handover failures with loss of MS.
    If NY1*T3105 < BSCT8 or
    TTRAU < BSCT8 or
    TSYNC/TSYNCDL < BSCT8 or
    T_MSRFPCI (20 s) < BSCT8
    Then each intercell handover failure with loss of MS is considered. Note that the
    observed BTS is the target cell of the handover.
    The suggested setting, however, is the following:
    NY1*T3105 < BSCT8 < TTRAU/TSYNC/TSYNCDL < T_MSRFPCI (20 sec.)
    With this setting call drops during the intercell handover are counted by UNIHIRLC.



    Intracell handovers with loss of connection and
    Unsuccessful assignment attempt with loss of connection:
    The relationship between timer BSCT10 and timers TTRAU, TSYNC, TSYNCDL
    determines whether this measurement also counts the number of unsuccessful
    assignment attempts with loss of connection (including intracell handover failures).
    If TTRAU < BSCT10 or
    TSYNC/TSYNCDL < BSCT10 or
    T_MSRFPCI (20 s) < BSCT10
    Then each ASSIGNMENT command which is not answered by the MS is considered.
    The suggested setting, however, is the following:
    BSCT10 < TTRAU/TSYNC/TSYNCDL < T_MSRFPCI (20 sec.)
    With this setting call drops during the intercell handover are counted by UNIHIALC.


    BSCT10 should be set to a value:
    1 sec. < BSCT10 < Min (TTRAU, TSYNC, 20 sec.)
    This results from the following rule:
    delta: < BSCT10 < Min (TTRAU, TSYNC, T_MSRFPCI)
    where: delta: time to allow the MS to receive the ASSIGNMENT command
    and to occupy the new channel (secure value: 1 sec.)
    T_MSRFPCI: BTSE internal timer (20 sec.), hardcoded
    Last edited by ghassen; 2009-05-09 at 05:17 PM

  4. #3
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    Thanks Ghassen,
    Its perfect answer for me......and useful for another Engineer.

    Thanks, Thanks, and Thanks

  5. #4
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    Quote Originally Posted by ghassen View Post
    Intercell handovers with loss of connection:
    The relationships between
    – Timer BSCT8 and the term NY1*T3105 and
    – Timer BSCT8 and timers TTRAU, TSYNC, TSYNCDL
    determine whether this measurement also counts the number of internal intercell
    handover failures with loss of MS.
    If NY1*T3105 < BSCT8 or
    TTRAU < BSCT8 or
    TSYNC/TSYNCDL < BSCT8 or
    T_MSRFPCI (20 s) < BSCT8
    Then each intercell handover failure with loss of MS is considered. Note that the
    observed BTS is the target cell of the handover.
    The suggested setting, however, is the following:
    NY1*T3105 < BSCT8 < TTRAU/TSYNC/TSYNCDL < T_MSRFPCI (20 sec.)
    With this setting call drops during the intercell handover are counted by UNIHIRLC.



    Intracell handovers with loss of connection and
    Unsuccessful assignment attempt with loss of connection:
    The relationship between timer BSCT10 and timers TTRAU, TSYNC, TSYNCDL
    determines whether this measurement also counts the number of unsuccessful
    assignment attempts with loss of connection (including intracell handover failures).
    If TTRAU < BSCT10 or
    TSYNC/TSYNCDL < BSCT10 or
    T_MSRFPCI (20 s) < BSCT10
    Then each ASSIGNMENT command which is not answered by the MS is considered.
    The suggested setting, however, is the following:
    BSCT10 < TTRAU/TSYNC/TSYNCDL < T_MSRFPCI (20 sec.)
    With this setting call drops during the intercell handover are counted by UNIHIALC.


    BSCT10 should be set to a value:
    1 sec. < BSCT10 < Min (TTRAU, TSYNC, 20 sec.)
    This results from the following rule:
    delta: < BSCT10 < Min (TTRAU, TSYNC, T_MSRFPCI)
    where: delta: time to allow the MS to receive the ASSIGNMENT command
    and to occupy the new channel (secure value: 1 sec.)
    T_MSRFPCI: BTSE internal timer (20 sec.), hardcoded

    Good answer and very expert.

  6. #5
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    Quote Originally Posted by Jackvn View Post
    Good answer and very expert.
    just i want to say that in our forum rules if you want to thank someone just push the thanks button because such post will spam our forum and if you want to increase your reputation and power in our forum keep contributing with usefull post this will help us too much
    thank you for understanding and try to do your best
    PS : if you need something you can pm me ill be there

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