The DTRU is placed in the DTRU
subrack. One DTRU has two TRXs. The DTRU performs the following
functions:Receives management
and configuration information from the DTMU, and reports its own status and
alarm information to the DTMU,Receives signals frommobile stations through the antenna system, separate the signals into signaling
and voice information through demodulation and balancing and then sends them to
the upper level
l
Processes the downlink
signaling and voice information and sends them to mobile stations through the
antenna system
Functionally, the DTRU can be
divided into three smaller modules:
l DTRU Power Amplifier Unit (DPAU)

The functions of the three smaller modules are as follows:
I. DBRU
The DBRU is the main control module in the DTRU. It performs
modulation/demodulation, data processing, and combination/dividing of baseband
signals and RF signals.
II. DPAU
The DPAU performs the following functions:
l
Detecting the temperature of the power amplifier
l
Supporting transmit bandwidth combination and PBT
III. DTPS
The DTPS converts the –48 VDC power supply for the DTRU into
+28 V output power. It provides three paths of power supplies (8 V, 4 V, and
3.3 V) for the DTRU.
The DTRU supports two modulation modes: GMSK and 8PSK. Table 1-3
lists the output power in the two modes.
Table 1-1
Output power in
the two modulation modes
GMSK
|
60 W (47.78 dBm)
|
80 W (49.00 dBm)
|
8 PSK
|
40 W (46.02 dBm)
|
60 W (47.78 dBm)
|
Read About Telecomunication:
Think and Done is a very usefull blog in which you can search and find everything of your daily life you can search and find different kind of solutions tips answered and much more which you cannot find to any other website and blog you can get more and more benifits form our web blogs. we are thanks for google to gave us so much intresting facility to keep touch with our friends and public. in Our blog you can find all kind of solutions inside of our blog and must share with your friends and family neat and clean blogger with umar qurashi.
About Article Protection :
This blog id proparty of umar qurashi be attention that donot copy any content of this blog .without permission you are not allowed to copy and paste this blog article on your website and if you do so we take action against you and you will be payable for stealing our contents.we make articles and wrote our articles on our blog so please donot copy our contents from our blog and paste it into any document or website. we shall be thankfull to you for this.
0 comments:
Post a Comment