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justdream
2010-02-16, 07:10 AM
Friends,

how to test TRXs using TEMS?

Processor
2010-02-16, 03:51 PM
can one actually test a TRX while doing a drive test?...never heard of it.

Please PROS in the house enlighten us!!!

tremalnike
2010-02-16, 04:40 PM
With "GSM Chanel Verification" (In TIG Control menu) and a lot of patience you can do that. Of course hopping must be disabled.
But it isn't enough accurately .

punto
2010-02-16, 06:25 PM
U can do small helpful trick, locking of all TRXs but tested, and do test TRXs one by one ... do it when network is least busy not to produce congestion ...
Is good to have half rate disabled, also, and have few phones capable of locking to a certain frequency, so can allow TEMS Investigation and measurement phone faster to test each of the time slots on tested TRX. Also I agree that even you set hard setting/thresholds on test parameters you will not be able to say with 100% that TRX is valid or invalid in this way. Do make, for example, also - VSWR measurements on each of the trx - with Site Master and some other trx functionality tests. This TS (time slot) test of TRX hardware is not 100% reliable, I agree with colleague from field experience. P:)

p.s. is good to have for example Nokia NetMonitor or TEMS pocket or Nemo Handy with you to make parallel calls, so you fulfill all TS test faster ... as TEMS Investigation TS test goes and comes back to tested TS if other are free/occupied

gprastomo
2010-02-16, 06:53 PM
Friends,

how to test TRXs using TEMS?

Hi,

its easy,
just need little patience...
1. false the hopping
2. make the table which refers to TRX and TS
3. try to make a call
4. read from tems, which TRX and TS was being occupied

do untill all table filled

taha.foru@gmail.com
2010-02-16, 07:02 PM
Can anyone define it!

Shakeel_15
2010-02-17, 03:21 AM
Hi,

In drive test you should know how to test TRX.
What you have to do?
........Make callls on each MAIO(TRX) and check the rxlevels on that particular TRX and if no fading is observed levels are good then TRX is fine, also check the quality BER & FER and if found OK then TRX is fine. You have to do this for one even TS and one odd TS for every TRX.
.....If you find drastic fading or low power or bad BER and FER and blocked calls, intra cell HO failures on any TRX then it is for sure that the particular TRX is faulty.

.........Also you can post process the DT Results in Actix and check the Quality distribution on each MAIO and catch the culprit TRX.

In Last you can use Channel Verification option in TEMS to check every TS of each TRX.

BR

tukangoptim
2010-02-21, 05:09 AM
With "GSM Chanel Verification" (In TIG Control menu) and a lot of patience you can do that. Of course hopping must be disabled.
But it isn't enough accurately .

agree,
i have experience pcm slot failure related to specific trx can not detected by tems due to its only occupied channel very shot (1-2s).
TRX can pass channel verification even drop call >50%.