- This topic has 180 replies, 1 voice, and was last updated 14 years, 9 months ago by kishor.
20th June 2006 at 20:39 #33027ErikGuest
It would be surprising to face a high FER with a RxQual (BER) keeping a good value.
…Unless your problems are not located on the air interface but rather at transmission/synchronisation level …in which case you will probably have a high Drop Call Rate, but then FER is a symptom; not the disease.
I guess you will never have such a case, because some other indicators, more widely used (customer complaints, drop call rate), will point out the problem before you even have a look at the FER.30th October 2006 at 15:33 #33028Earl LewisGuest
I am new in the telecom sector.
I would really like to learn alot about wirelees telecom (GSM, CDMA …..)
Does anyone have expieriance with the TEMS investigation software from ericsson?
One thin i like to know right now is how can u activate the AMR measurment on the TEMS.
thanks.8th November 2006 at 02:56 #33029JaneGuest
I would like to learn about the wireless telecom8th November 2006 at 15:44 #33030PixGuest
it is best if you learn this the proper way…16th November 2006 at 21:13 #33031ErikGuest
Jane, though wireless telecoms might sound like a “niche” to many people, the aspects of this domain are broad. The documentation that you need to look for will depend not only on the subject that you are interested in, but also from what you already know. As a general practice in this domain, I recommend that you borrow a book (maybe you have telecom engineers in your environment who can lend one) or buy one… though the price seems high (60-100 euro) at the beginning, but it’s worth!
To me, working on KPIs performance for Radio Access (Air and Abis interface), I find very important some concepts like speech coding (A and Mu laws, or let’s call it logarithmic compression) and source coding (mainly the error-correcting coding which allows to “fix” your frames even if some bit errors occur), even though it’s not needed for my everyday tasks… but it helps a lot to understand better what you will learn or do in the future (if you work in telecoms).1st December 2006 at 10:20 #33032MittalGuest
hi any one plz can u help to make an program in java to calculate erlang loss.6th December 2006 at 13:26 #33033RaviGuest
can some one who worked on dimesioning a trunk group – through some light on how one worked ?7th March 2007 at 10:51 #33034EmmanuelGuest
i want to convert traffic figures (erlangs) to minutes.
how can i go about this?7th March 2007 at 15:38 #33035PixGuest
1 erlang represents the usage of one channel during 60 minutes.
So you just have to divide the number of erlang by the number of channels –> how many minutes per hour each channel was used (in average).16th March 2007 at 23:23 #33036ErikGuest
1 erl = 60 minutes17th March 2007 at 03:31 #33037PixGuest
actually, i did a stretch.
1 erlang = the duration of the observation period. usually, for BSS elements, it’s one hour.17th March 2007 at 09:29 #33038hariGuest
i would like to know the calculation of total elangs in the ckt and also wants to know hw to operate TEAM instruments.16th May 2007 at 16:01 #33039TambraGuest
in need to convert 167,415 Erlang to MOU?
can someone tell me how many MOU’s are if i have 167,415 Erlang.1st August 2007 at 18:17 #33040JanekMakowskiGuest
I’d like to say hello to all people on this board.
Janek1st August 2007 at 20:20 #33041PixGuest
Hello Jenk, welcome onboard 🙂