- This topic has 77 replies, 1 voice, and was last updated 6 years, 3 months ago by
gebreegziabher.
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AuthorPosts
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islam ali
Guestwat is the basic function of the Trx in Bts? how a call run’s in a bts?
KJB
GuestHi MR.Singh
Kindly Consult NED for Nokia TRX.
Thx
Khalidkalim .i
Guesthello dear function of noika trx:-
1 trx card supports 8 time i.e. max. no of 8 users . but not practically. it will supports max. no of 7 callers.
since 1 time slots = 16 kbps
Here,
max no of callers, if
4+4+4(using 8 users)=96 users at H.R
4+4+4(using 7 users)=84 users at H.R4+4+4(using 8 users)=192users at F.R
4+4+4(using 7 users)=168 users at F.R
Function of Trx=
trx consist of 1 Tx, 1 main Rx and 1 diversity Rx.
Trx unit perform Rf modulation/demodulation and amplification of one Rf carrier.It also handle uplink signal from ms to bts and downlink signal from bts to ms.
thanks
nitish
Guesttrx is a hardware insite bts.one trx can take at a time maximum no of 8 calls on full rate and 16 in full rate ,this also may not possible since time slots are required signalling purposes also
islam ali
Guestwat is the function of duplexer @multicoupler in the nokia designed Bts.?
Bijoy
GuestHi Islam Ali
Functions of Duplexer:
1.combines transmitted and received signals into one antenna
2.amplifies received signals with a variable-gain LNA.
Functions of multicoupler:
The multicoupler splits Received (RX) and Diversity-Received (DRX) signals and distribute them to the Transceiver units.Br\\
BijoyRajiv Singh
GuestHow many call run at the same time on single trx
rajib jena
Guesti want to know how bts works in detail?
Narender reddy.p
Guestwhat is the permanent solution of cfr,mean holding & path loss
Umeer
Guestwould you please explain in detail the function of TRX without any vendor reference ??
thanks in advanceVivekananda Maity
GuestDear Team,
What is the function of LAPD
savan
Guestmulticoupler in bts?
kim
Guesthi , I am a fresher and i m really want to learn the details about the trx and e1 . how the calls are carried out . what it is made up of and other detal . kindly guide me from where i can get the material on net
pankam
Guestwtat is tscand wts its function in bcch trx,,,,
MRG
GuestDUPLEXER is a passive device where TX and RX signals are connected to same antenna for simultaneous transmission and reception.
MULTICOUPLER is a passive device where received signal is splitted to feed a number of receivers(4,8,16).
COMBINER is a passive device where two or more transmitters are combined to feed to a single antenna. -
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