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Member
Reputation: 76
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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2009-05-09 02:56 PM
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Member
Reputation: 91
Originally Posted by
februaryku
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
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Member
Reputation: 76
Thanks Ghassen,
Its perfect answer for me......and useful for another Engineer.
Thanks, Thanks, and Thanks
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Junior Member
Reputation: 10
Originally Posted by
ghassen
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.
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Member
Reputation: 91
Originally Posted by
Jackvn
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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