ZTE Corporation ZXMBW-R9100 Manuale Utente
ZXMBW R9100 Technical Manual
WDPA Work
Principle
shows the work principle block diagram of
module.
F
IGURE
7 WDPA W
ORK
P
RINCIPLE
Description
The WDPA module consists of an amplifier circuit, circulator, cou-
pler, power supply, alarm reporting unit and
pler, power supply, alarm reporting unit and
. The function of
each unit is described below.
�
Amplifier circuit provides the main
amplification channel.
�
Circulator separates the receiving and sending signals.
�
Coupler extracts the RF signal transmitted by base station. It
is responsible for monitoring and measuring
is responsible for monitoring and measuring
signal.
�
Power supply unit provides power supply for each unit.
�
Alarm reporting unit reports the temperature, high/low
power and standing wave alarms.
power and standing wave alarms.
�
Low Noise Amplifier (
) amplifies the received signals.
WTRX
WTRX Functions
Short Description
In ZXMBW R9100, the WiMAX Transmitter & Receiver (WTRX)
module is used for RF up/down-conversion.
module is used for RF up/down-conversion.
The
module performs the following functions:
�
Baseband
clock extracting, restoring and distributing
�
centralized monitoring
�
Digital intermediate frequency processing
�
small signal up/down-conversion
�
Power supply generation
�
Supports OBSAI-RP3 interface.
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