DTRU Module of BTS

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)

l   DTRU Power Supply Unit (DTPS)





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   amplifying the signals output from the DBRU according to the required power level
l   Coupling the output power for loopback test and power detection
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