PDA

View Full Version : Mean Holding Time Below



harrypotter
2011-09-02, 03:22 AM
I am ahving problem with our 2G network and having this alarrm below. Any EXPERT can help?

"7743**, MEAN HOLDING TIME BELOW DEFINED THRESHOLD." [00 00 00 00 00 00 01 00 06 02 4d

RF engineer
2011-09-02, 03:46 AM
I am ahving problem with our 2G network and having this alarrm below. Any EXPERT can help?

"7743**, MEAN HOLDING TIME BELOW DEFINED THRESHOLD." [00 00 00 00 00 00 01 00 06 02 4d


Check Clock in site.

TRx out of service

interference

Swap

BR

wrendon
2011-09-02, 11:24 AM
Exchange baseband, and trx positions, and see if the problem changes position obviously trying to change to diferent positiions, exampl: if u have mean holding in trx 4, exchange trx 4 with trx 12 , and bb2 with bb2

harrypotter
2011-09-02, 05:11 PM
Exchange baseband, and trx positions, and see if the problem changes position obviously trying to change to diferent positiions, exampl: if u have mean holding in trx 4, exchange trx 4 with trx 12 , and bb2 with bb2

If you exchange the TRX and BB2, do I have to re-commision the site or just purely hardware exchange.

wrendon
2011-09-02, 09:10 PM
If you exchange the TRX and BB2, do I have to re-commision the site or just purely hardware exchange.

Just purely hardware exchange! You don't need to re-commissioning, just remeber to block the trx before the exchange

nkalgin
2011-09-02, 10:32 PM
ZEEN:MUNHTT=3; - may be more..
by default it set in 10sec, IMHO, it's to much

parsarka
2011-09-03, 11:40 AM
I am ahving problem with our 2G network and having this alarrm below. Any EXPERT can help?

"7743**, MEAN HOLDING TIME BELOW DEFINED THRESHOLD." [00 00 00 00 00 00 01 00 06 02 4d
You require to reset the TRX/lock the TS firstly..if still the problem reoccurs require to change the sign & still if it reoccurs replace the TRX as recommended by NSN R&D

ritgail
2011-09-03, 09:39 PM
U r having this problem with Ultra BTS. If yes, check antenna connection, feeder jumper point for loose connector. check the cabinet top connection of Ultra BTS.

kadry
2011-09-15, 01:50 AM
Hi,
This alarm appears with ALARM TCH CHANNEL FAILURE ABOVE THRESHOLD
if also this alarm available
check RX Level Statistics ,if there are a lot of samples in bad signal level ,
the main cause hardware or connection problems
thank you