- This topic has 14 replies, 1 voice, and was last updated 15 years, 1 month ago by t28.
26th November 2005 at 15:13 #43166About the Faulty Time SlotGuest
Please tell me how a TS can be faulty as it is the logical channel (the bits) on the physical channel ( Frequency). So, a TS faulty should mean that a TRX is out of order but it is not said27th November 2005 at 13:11 #43167JohnGuest
Do you have enough resources in the cell to support the TS
is the ABIS path available and correctly defined28th November 2005 at 10:12 #43168Faulty TS @ JohnGuest
John please elaborate your answer please as i can’t really understand…
Thanks29th November 2005 at 09:07 #43169TSGuest
Are you talking about TDMA frames or the Physical TS ?
If a TS is out of service there can be many reasons why
Which equipment vendor is it29th November 2005 at 13:03 #43170@TS by AGGuest
I am talking about the Time Slot (AS I know that the Time slot is based on the TDMA principle) So i am asking about the time slot in the TRx of the BTS. As one TRx has one or in case of hopping (a list of frequencies). So TRx should be faulty if one TS is faulty, but it is not so. Wats the reason30th November 2005 at 11:05 #43171RF EngrGuest
Please any one tell the confusion of AG as I have the same issue1st December 2005 at 14:25 #43172JohnGuest
why do you think it is not possible to have just 1 TS Fail ?
If there are not enough ABIS path available to the TRX then one TS could fail
TS could fail loop test with TRC
For example in older Ericsson RBS 200 there were 7 SPP cards in each TRX so 1 card could fail
Again Which Vendor is it20th December 2005 at 07:40 #43173RF EngrGuest
Vendor is nortel so kindly tell me John about this20th December 2005 at 10:14 #43174BobooGuest
I’m aggre with John, I’ve ever seen this case : you locked the faulty TS and the KPI go back in their normal range. in nortel feature, you are abble to lock one TS in a TRX. Try to chek this
Boboo20th December 2005 at 12:21 #43175vijayGuest
No it is not that when Trx faulty means hw problem and when TS faulty than it is issue of Multiframe in Radio propagation.21st December 2005 at 07:23 #43176RF EngrGuest
Thnaks for the comments but as I have said that TS faulty should have TRx faulty, i mean that TS is a logical channel as it is TDMA, so as far my knowledge is concerned, TS means the # of bits passing in a particular time (0.577 ms) in the same physical channel, so if one TS is faulty, so the Radio (Trx) should be. Thats was my logic. Also please tell me the exact refernce that how can i lock the TS21st December 2005 at 12:13 #43177BobooGuest
to lock a TS (in Nortel), you had to access to the OMC.
at the TDMA level,
1st: right click on it with the mouse.
2nd : selected the TS,
3rd : click on the field “set channel state”
4th : locked
you have locked one TS slot of your TDMA.
Boboo.22nd December 2005 at 05:22 #43178RF EngrGuest
Thanks Boboo but one of my question is unanswered yet. The question is ” TS means the # of bits passing in a particular time (0.577 ms) in the same physical channel, so if one TS is faulty, so the Radio (Trx) should be. Thats was my logic”22nd December 2005 at 06:31 #43179joodGuest
1 ts faulty(hard ware) = all ts on trx fault.
1 ts faulty(soft ware) = low efficiency of trx.
1 ts drop = all other ts on trx may ok.
1 ts block = trunkig gain of interface is bad.
# ts failure might mean (HO, TRUNK, HW, SW,bad Qu,…. etc)5th January 2006 at 23:40 #43180t28Guest
usually, faulty TS is linked to wrong DCU4 board or TS is frozen. in case of frozen TS you should lock/unlock it…