- This topic has 252 replies, 1 voice, and was last updated 8 years, 9 months ago by DangerousMinds.
28th December 2005 at 18:57 #35326al-shamsiGuest
i want to know testing and commissioning of Huawei 3812 node B,pls give any website address.3rd January 2006 at 08:00 #35327Saurabh ShuklaGuest
Hi i am Rf engg. in Cdma technology
firm as i am a starter so i would like to know more about the Business So do Join me in ur sharing List6th January 2006 at 06:08 #35328manoj kardamGuest
plz. tell me basic knowledge of
BTS, PDH, micro SDH,XDM.
what is the topology between BTS&
how is the call setup between BTS& BSC?
manoj6th January 2006 at 07:53 #35329madhuGuest
I A and B are in different MSC, and there is a call drop because of some problem in A network.
1)Will this be a normal call B
2)or will it be a call drop both in A and B.
2)What messages will the BSC get in this case.
madhu16th January 2006 at 20:30 #35330avinashGuest
how many pcm links are required for a fully loaded(12 TRX) gsm bts.17th January 2006 at 00:02 #35331NarenGuest
So remaining 30 channels –30*64k=1920Kbps
Abis Signalling needs 64k;
Speech (4x16k TCH are multiplexed in 1x64k): means in 1xTRX—->128k
So 12 TRX—>12*128= 1536K
So 1PCM is more than Enough for your 12 TRX config17th January 2006 at 17:28 #35332MostafaGuest
I think that (12 TRX TS)depends at least on 2 parameters:
* Lapd signalling you have.
* Confact parameter.18th January 2006 at 11:04 #35333sanjayGuest
i want to know about DXX Ericsson.can any one help me regarding this.
anjay22nd February 2006 at 22:03 #35334CegeGuest
I want to know what is signalling
concentraded and unconcentrated and what it´s the relationship at the moment to define a TRX with its Timeslots and rblt´s.
Exists any document in the Web that talk about this and we can read?
Thank´s a lot.
Cege9th March 2006 at 06:46 #35335Shamem AhmedGuest
to mr madhu,
Yr question is not BTS part, it is transmission part. Here i give y a basic idea about this.
There are various capacity configuration of transmission like..
e1,e2,e4 etc. are 1e1=2m, 2e1=4m etc. are are not synchronization, i.e PDH. also for pdh equipment are different.
on the otherhand in SDH (synchronization digital hierarkey) are stm1=155m,stm4=622m,stm16,stm64=10g etc. also sdh equipment are different.
thanks21st March 2006 at 07:22 #35336sudhir &jitendraGuest
hello sir ,
i want to know that CDU BECOMES FAULTY AND SUDDENLY BECOMES IN OPERATION MODE ITSELF. AND IT SHOWS BTS INTERNAL AFFECTED AT BSC END . HOW DOES HAPPEN AND WAT SHOULD WE DO.29th March 2006 at 16:12 #35337Emad KGuest
kindly plz tell me what’s the max an min Tx power from omni antenna which will not effict the user , i’m talking about indoor coverage , and i’m using RBS 2206 ericsson, it will help me regarding RF design and callculation (Link Budget).
BR.30th March 2006 at 10:32 #35338AZZLEEGuest
Hello to all,
Could any one tell me about Minilink Traffic Node,& is there any differentiation between Minilink C/E? Thanks for your cooperation…
Rgds,2nd April 2006 at 19:25 #35339suleimane abduGuest
please i need some explanation on Ericson BSS hardware configuration.
Also the BSC capacity in term of BTS2nd April 2006 at 21:12 #35340emreGuest
synchronization digital hierarkey
Synchronous Digital Hierarchy