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22nd February 2010 at 08:28 #61135natashaGuest
how r u all ?
i have a question about some cells in my network have high TCH cong. with low erlang. wat could be the reason ?
and how can we solve it ?
my vendor is ericsson.
thanks in advance22nd February 2010 at 09:38 #61136pawandeepGuest
kindly check the TCH availability,
then check the devices in A-ter interface….22nd February 2010 at 09:50 #61137natashaGuest
the TCH AVAIL =100% but i didn’t got the A-TER interface meaning
wat u mean ??22nd February 2010 at 10:02 #61138JoshiGuest
A-ter Interface—- is the Interface btwn BTS and BSC.22nd February 2010 at 10:33 #61139natashaGuest
how can i check it pls ??22nd February 2010 at 11:12 #61140JoshiGuest
Sorry its interface btwn Bsc and Msc:)) R U facing problem in single Cell or in a group of cell.
If in one cell: 1. try to increase Signaliing link(packet Pipe)2. HW problem in BTS(TRX).
If Many BTS: A Ter interface HW problem in BSC.22nd February 2010 at 11:22 #61141MlaiGuest
I would like to give a small help in this issue.
Pls check A-bis interface BSC MSC the configuration of it,because some times when in A-bis are configured more dev per EGPRS it happened to have cong in that site.
thanks,24th February 2010 at 10:30 #61142pawandeepGuest
since u are working on Ericsson system……
u can easily find A-ter interface report.
agree with mlai,also check A-bis path.
if possible give more clear picture of the issue u are facing…such as….
2.H/w is ok….1st March 2010 at 13:27 #firstname.lastname@example.orgGuest
FYI,A-ter is the interface between bsc and the transcoder.Do the following for high TCH cong-Is frequency and hopping plan proper?NO
Remove all co-channel &
possible adj-channels. Ensure proper MAL, MAIO & MS settings.YES-1-Check TCH drop due to transcoder failure. If the tch_tr counter is high for a specific cell then check its time slot mapping. And if it is high for a no. of cells then check the health of transmission media.2-Are All Neighbors properly defined.NO-Define all the relevant cells as neighbors. Rectify all one way neighbor definitions.YES-Check if NCC,BCC, BCCH, LAC & Sync are correctly defined.HOPe u get it.