ZTE Corporation R8872AS1900 Manuale Utente
ZXSDR R8872A Product Description
ZTE Confidential & Proprietary
7
Figure 2-2 System Structure
R8872A includes 5 main hardware modules:
Quad-channel Transceiver (QTR)
Duplex Filters LNA (DFL)
2x Power Amplifier (PA)
Power module (PWR)
Protecting Interface Board (PIB)
2.2.1
QTR
The QTR has following functions:
Process 4 received signals and 2 transmitted signals;
Convert uplink and downlink radio signal;
Multiplex downlink IQ signal and de-multiplex uplink signal;
PIB
QTR
PWR
DFL
CPRI 1
CPRI 2
PWR ALM
P
A
O
u
t
DC in
ANT1 ANT2 ANT3 ANT4
R8872A
2 x PA
PA Out
GND
CPRI links
AISG/MON