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kb.jayadev
2010-11-24, 06:40 PM
hai friends,

Some sectors are showing very low RX quality app 30 % good samples only for all the TRx. these sectors are also showing dip in busy hour erlangs from 27 er to 12 er. but all other KPI s including TCH drop, hand over failure etc are with in bench mark. I have asked to check the hardware. what could be other issues? :o

Optimal
2010-11-24, 07:07 PM
How about the frequency ?
T_DR, HO, etc should be degraded from very bad RxQuality.

kb.jayadev
2010-11-24, 07:10 PM
How about the frequency ?
T_DR, HO, etc should be degraded from very bad RxQuality.

Very Interestingly none of the other KPI have degraded.This is happening to more than 7 sectors. I have checked the BCCH frequency .But no clash is found.

Djemai
2010-11-24, 07:23 PM
what about the equipment
is it huawei or e******* before all.
because am specialised of huawei's equipment

Optimal
2010-11-24, 07:39 PM
Very Interestingly none of the other KPI have degraded.This is happening to more than 7 sectors. I have checked the BCCH frequency .But no clash is found.
When did the quality has been degraded?
Which vendor we looking for?
Can you try to deactivate frequency hopping and monitor quality for each TRX? It will show which TRX is the bad-quality.

kb.jayadev
2010-11-24, 07:53 PM
[QUOTE=Djemai;106911]what about the equipment
is it huawei or e******* before all.
because am specialised of huawei's equipment[/QUOTE

The vendor is NSN..and using siemens BTS

rishi
2010-11-24, 08:02 PM
if u are getting bad quality in all the three sectors there will be definetly issue in hardware

leelio
2010-11-25, 01:03 PM
do you have KPI called IOI i.e., interference on idle mode? if so, how does this IOI behaves during that time of rx_qual drop?

two issues i can predict from this:
1. Hardware: do you do radio calibration? or just try to replace radio
2. use Mapinfo to recheck frequency issues

rajmeena06
2010-11-25, 01:24 PM
Hi all,

Me also facing Rx Quality on some cells ,How i can check what is issue (System is Huawei) plz share ideas,No co adjacents is there and what more i check and how.

rishi
2010-11-25, 02:40 PM
do you have KPI called IOI i.e., interference on idle mode? if so, how does this IOI behaves during that time of rx_qual drop?

two issues i can predict from this:
1. Hardware: do you do radio calibration? or just try to replace radio
2. use Mapinfo to recheck frequency issues


i think if u are using nsn then 196 report csn show you the reason

kb.jayadev
2010-11-25, 03:19 PM
i think if u are using nsn then 196 report csn show you the reason


actually we are using Siemens Network. and this report is not available.

rishi
2010-11-25, 03:23 PM
which region or country are u working

mail2paturi
2010-11-25, 03:52 PM
Dear U can check the following things to identify where the problem is...
1. frequency planning
2.hardware issue
3.Trx power
4.Band 5 interference
5.Maio plan
6.Check the quality issue is in BCCH or TCH so accordinglw we can take the necessary actions...

Alex_R
2010-11-25, 04:43 PM
Dear

did you check external interference it may be so if there is no clashes

my can use spectrum analyzer

rajmeena06
2010-12-10, 01:39 AM
Hello all,
can any describe how to read TRX Quality Report in Huawei (bsc6000).
If i am getting Some Trx quality bad sample in a cell then what necessary action should be taken.plz sujjest genious