View Full Version : IRAT success rate and drop call improvement
jason182
2013-10-29, 07:20 AM
Hi Exprts,
I improved call drop rate and IRAT SR with changing 2decno to 13 and 2drscp to -108 but I still under the target !
There are others parameters to improve more these KPIs ? (Underground design ).
Regards,
Jason
a19997104
2013-10-29, 08:28 AM
its also important to check the 2G configuration in the RNCs (external GSM cells with the correct BCCH, BSIC, LAC, etc)
jason182
2013-10-29, 08:43 AM
Héhé already checked
Luis123
2013-10-30, 06:37 AM
Hi Exprts,
I improved call drop rate and IRAT SR with changing 2decno to 13 and 2drscp to -108 but I still under the target !
There are others parameters to improve more these KPIs ? (Underground design ).
Regards,
Jason
You want improve global drop 2g+3g or only 3g?
Which value of 2decno was before? maybe you can go further.
In a 2g+3g network i also retain more traffic in 3g and decrease global drop call
jason182
2013-10-30, 07:21 AM
Hi,
Juset 3G drop calls and 2decno was 14 I changed it to 13.
What do you meas by retain more traffic in 3g ?
Regards
Luis123
2013-10-30, 07:54 AM
Hi,
Juset 3G drop calls and 2decno was 14 I changed it to 13.
What do you meas by retain more traffic in 3g ?
Regards
I mean keep the traffic more on 3g than on 2g...for example changing rscp from -90 to -105...
In your case it seems you also have 2g network. changing 2d from -14 to -13 you go quicker for 2g...if you put ecno -12 or even -10 you can do irat in better conditions.
fon909
2013-10-30, 07:47 PM
Hi,
For IRAT improvement you may try parameter tuning of gsmamountproprepeat from 4 to 0.
jason182
2013-10-30, 11:25 PM
This is e******* parameter ? I didn't find it in Alex !
electron
2013-10-30, 11:36 PM
tune selectionPriority for all relations based on their contribution on attempt and success ; It is overal giving RNC level around 0.5% improvement based on my experience .
Cheers
MCBEP
2013-10-31, 04:09 PM
Also delete unnecessary,zero attempts, relation from gsm neighbouring list to improve measurements results.
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