- This topic has 7 replies, 1 voice, and was last updated 11 years, 1 month ago by amit.
26th March 2006 at 17:05 #44657MKGuest
Nokia ultrasite BTS,444 configuration.
24 hours UPS,AC present.
1. In bsc the state of bts is BL- RSL. OMU-BL.
2. At bts site all(3) PSC are ok(green).
3. All BB(6) cards are green.
4. E1/T1 green, all TRX orange.
5. BOIA card Red.
1.BTS manager is not able to connect to bts.
2. Changed the BOIA card.
3. Now BTS manager is able to connect
1. boia is green,rest all same.
2. But the BB cards start blinking.
4.OMU is still blocked. why?
Note that the fresh commisioning of bts has been done.
1.BB1 and BB3(bsae band) cards become stable green.rest all(bb cards) continues to blink.
2. TRX 1,TRX2 and trx3,trx4 becomes stable green rest all are orenge
1. doubt goes that 4 BB cards are faulty.
2. The four bb cards are chnaged.
but the problem is still same. ie omu is block.
the bts was recommsioned by sending the offline prepared files for 444 configuration.
the bts software was reloaded.
still the problem is as it is.
Please note that:
In bts manager, in the current configuration only two trx (which are green) are shown.
rest 10 trx are not being detected at all. Does that mean there is some thing wrong with the back plane.
experts may please comment.26th March 2006 at 18:25 #44658RMGuest
It could be the position of BB cards. you need 1 for every 2 trxs. It seems that the first sector is ok->better check the hardware configuration you downloaded. think that de back plane fault is the last probability…27th March 2006 at 07:56 #44659patrickGuest
you can try a electrical reset. You switch off AC power.
Check your trame with hubmanager between your BTS and BSC.
You can have a problem on the BUS.
You can also check The parameters GTRX
GTRX= yes EDGE
GTRX= no NO EDGE28th March 2006 at 01:11 #44660ivanGuest
try to check the branching table from BTS and BSC. You have the same timeslot position of the OMU, TRX and TRXSIG.28th March 2006 at 01:37 #44661ivanGuest
Try to loop 1st the E1/T1 card at intface1 or dir1, the LED of E1/T1 crd should turn green or orange. if its green then dir1 is active, the rest is inactive; but if it is orange inactive the rest interface except interface 1. Now check the branching table, you should allocate the OMU, TRX and TRXSIG base on what is given from NOC, since it is PCM ok. Hope this will help to solve he prob.6th April 2006 at 11:10 #44662aliGuest
how many frequencies are in a one sector, what are the functions of TRX in respect to the frequencies , what is the relation between the number of trx and the number of frequencies ,
each cell has one frequency ,30th July 2009 at 09:11 #44663RKS@NERISTGuest
Plz do the following
1.Plz configure the hardware for trx addition
2.Check the parent site how the e1 is distributed for this site,check whether the cross connection is correct or not
3.check the traffic configuration with the NOC6th April 2010 at 20:08 #44664amitGuest
know me more ultra bts and cabex site