Zte ZXMBW E9200, User Manual, Page: 34 / 63

ZXMBW E9200 Indoor Pico Base Station User Manual
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F
I G U R E
1 4 P R B M O M
O D U L E
P
R I N C I P L E
CPU
Baseband
processing
RF
processing
Clock
processing
PRBM 0
+12 V
GPS
FE
ANT

Controls the system, generates and encrypts IP packets.

Interfaces with the baseband process unit.

Provides a service network interface.

Provides an Ethernet interface for the local operation and
maintenance LMT.

Processes the WiMAX PHY layer and MAC layer.

Encrypts and decrypts signals.

Performs transmission signal processing includes digital
baseband signal processing, D/A conversion, analog
baseband/intermediate frequency signal processing, and
modulation from analog baseband/intermediate frequency
signals to RF/RF signals.

Performs received signal processing includes RF signal
processing, modulation from RF signals to analog
baseband/intermediate frequency signals, analog
baseband/intermediate frequency signal processing, analog
baseband/intermediate frequency A/D conversion and digital
baseband/intermediate frequency signal processing.

Generates and monitors local oscillator.

Processes RF antenna and power supply.
The clock process unit is a timing & frequency subsystem,
provides PP1S and 10MHz timing reference and frequency
reference signals for the baseband and RF subsystem.
The ZXMBW E9200 clock process unit consists GPS clock process
subunit, ToP clock process subunit, control process subunit and
peripheral circuit process subunit, as shown in Figure 15.
CPU Unit
Baseband
Processing
Unit
RF Processing
Unit
Clock
Processing
Unit