- This topic has 10 replies, 1 voice, and was last updated 11 years, 4 months ago by kumar.
6th June 2007 at 07:00 #47733JhaGuest
Hi All n speciallly PIx
I have a site which is having the stats as follows:
daet CSSR TCH drp SD HSR
26/05 96.95 2.58 1.76 98.15
27/05 95.93 2.23 1.33 97.56
28/05 42.23 2.45 44.05 74.23
29/05 23.53 3.46 56.89 51.25
30/05 26.04 2.88 56.2 53.97
31/5 19.78 3.77 60.81 48.97
1/6 30.45 7.53 53.54 55.13
2/6 27.86 10.07 55.34 55.13
3/6 45.48 5.61 49.42 61.75
4/6 28.42 9.6 53.59 52.71
5/6 23.15 9.77 53.70 52.716
This is the condition of the site.I have done everything for the site like BCCH TRX Swap,frequencyPlan check,swap chaeck,Alarms for DIP.
Nothing has worked.
PLs suggest wht to do6th June 2007 at 09:00 #47734Rajiv GujralGuest
how bout the TCH Assign Fail and SD ASFR, and also if u have checked flicks on the Media. As your SD Drop is high so it might be with the problem with BCCH TRX or Combiner on that end and either VSWR and low power of the same. Frequency plan will not let the SD Drop to tht extend. Check the alarms and media flicks.6th June 2007 at 11:05 #47735JhaGuest
I have got one alarm named
DIGITAL PATH UNAVIALIBILITY FAULT on the dip and there is no alrms regarding flicks.Also I have changed the BCCH THX.Also there is the same condition of drops on all sector,so the conclusion i have is there is some issue in hardware side.
I have also done Hard and soft reset of the site.swap chech has also been done.There is Intra Handover failure ratio is aslo high.
If you need more information regarding this then please let me know.
Jha6th June 2007 at 11:25 #47736Rajiv GujrralGuest
I think its a alarm because of some fault at the Switch end. Better if u check ur Vendor Specific Manual. I dont think there is any problem at the RF end. Another thing that u can do is to check the BER on the Media for that site.
Regards6th June 2007 at 11:29 #47737JhaGuest
Thx for the suggestion.The media is creating the problem.
What is the reason for High Intra Handover failure??can u suggest something regarding this
Jha6th June 2007 at 11:47 #47738Rajiv GujralGuest
Is it a cell specific or BSC specific problem. For a site specific problem u can look for the TCH Allocation failure (Congestion) and Assignment failure on that cell.6th June 2007 at 11:59 #47739Geet MukhraGuest
I fully agree with you.6th June 2007 at 12:04 #47740JhaGuest
The problem is cell specific and There is no issue of congestion.
niraj Kumar6th June 2007 at 12:27 #47741Rajiv GujralGuest
Check the TCH Assignment Failure for that cell excluding and including Handover. If it is high then might be any of ur TRX is faulty6th June 2007 at 12:54 #47742JhaGuest
Thx for ur suggestin.I will do the same and revert back to you
Jha2nd February 2011 at 07:25 #47743kumarGuest
We are using the Huawei bts in GSM 1800 but unable to meet the kpi for the none of the towns can u suggest anything