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Dear all,
I would like to know the suitable value of T3101 in Alcatel and Ericsson.
To optimize this timer will improve the SDCCH fail in our network?
Thank you very much.
what is 3162 parameter.
Hello SM.
In the Ericsson networks, the T3101 can indeed improve the SDCCH Assignment Failure. If you monitor the counter CESTIMMASS from the dbo_CELL_MAIN or dbo_CELL_MAIN_PEAK tables from the GRAN_seg1 server you will see that at least a 5% of the CCALLS correspond to the expiration of the T3101. The default value for Ericsson is 1,5 seconds. We found an improvement by moving it to 3 seconds.
Of course, ideally would be to have a Protocol Analyzer and measure the average time for the timer and see if the actual value is correct!
I think in Alcatel-Lucent is easy to set a new value. However in Ericsson, even a small restart is needed on a BSC level.
Regards,
SA
In alcatel, the default value is 3seconds I think.
note that the default value on alcatel is 3*0.1s=0.3s and not 3S
In Nortel is 3 seconds the default.
Default value of T3101 in Alcatel can’t be that low 0.3s. Should be 3 sec.
Fouad,
in Alcatel is 30*0.1s=3sWhich is the deafult value in Siemens and Nokia?
Hi everybody.
what is best value for T10 & T3101 timers in Nokia BSC?Thanks a lot
Have faced the issue of “Missing Immediate Assignment”, but there was no SD blocking blocking on cell + routing area has been updated without doing anything, not even changes the MS location. Could anyone share the reason or explain it?
check co bcch/bsc, resurgences, interferences.
