View Full Version : Others Poor MPD in Huawei BSC 6900
akmamit
2011-03-14, 09:12 PM
Hi,
There was poor MPD observed in BSC 6900 having BTS 3900 after.
The network was previously on e******* & it was swapped to huawei.
Traffic is same, but the drops have increased..can anyone help me in this regard...
akmamit
2011-03-14, 09:13 PM
Hi,
There was poor MPD observed in BSC 6900 having BTS 3900 after.
The network was previously on e******* & it was swapped to huawei.
Traffic is same, but the drops have increased..can anyone help me in this regard...
auto_art
2011-03-14, 09:13 PM
what are the drop reasons.?
akmamit
2011-03-14, 09:14 PM
what are the drop reasons.?
the drop reasons are mainly T200 Expire & Radio Link failure
auto_art
2011-03-14, 09:33 PM
if it is present in all BSC's. there might be some problem with parameter settings... what i am suspecting..
akmamit
2011-03-14, 09:49 PM
parameter are mapped as per previous e******* settings....
akmamit
2011-03-15, 02:52 AM
hi,
to add to the thread,..the network..previously had baseband hopping & after swap we implemented Rf hopping it....
the MPD was poor ..hence we reverted back to base band..hopping , still no improvement in MPD..
can anyone share some other possible causes influencing high call drop...after swap..from e*******
Md.Moniruzzaman
2011-03-15, 03:16 PM
Can you segregate drop category (Signal Strength/Bad Quality/Sudden/Other/TA ??) Also direction (Uplink/Downlink ?) Because T200 times & Radio link failures indicate poor radio link between MS < ---- > BTS . If we want to draw conclusion about Hardware issue or other things let us answer the above questions.
akmamit
2011-03-15, 05:47 PM
majority of the drops are due to signal strength & quality in the UL...any other information required, please let me know....
Md.Moniruzzaman
2011-03-15, 06:05 PM
UL drop basically due to Planning issue. If earlier UL (SS & Bad Quality) drop was low comparatively. Through parameter check needs.
akmamit
2011-03-15, 09:06 PM
can u please detail the parameters..to be watched for in this case...
haq_enam
2011-03-16, 02:32 PM
If SS and Quality drops are max....RLT values can be increase bit more to reduce Quality drops....
Can u pls share parameter values like
ACCMIN
RLT
T200
Do u have UL and OV together?
akmamit
2011-03-16, 04:22 PM
hi,
these are already mapped to e*******..hence we cannot change the same...as operator has restricted changes on these parameters..
Can u please suggest something else ....
Regards,
Amit Kumar Misra
akmamit
2011-03-16, 05:50 PM
New Update....
Another cluster swapped ....same result...same dip in MPD...
Can anyone suggest on e******* to huawei mappinp...
haq_enam
2011-03-16, 07:28 PM
Pls share ur parameters mapping document....we are also swapped and performace is okey.....if u let me provide i will try to mapp with us and get to back if any unsimilarities...
Sachin Kumar
2011-03-26, 07:35 PM
Hi ,
You can try traffic balancing...
akmamit
2011-03-26, 07:38 PM
Tried traffic balancing but to no effect....
Sachin Kumar
2011-03-26, 07:42 PM
have u tried it for OL & UL...
akmamit
2011-03-26, 07:43 PM
yes but...no effect yet...
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