Zte ZXSDR RSUC User Manual page 20

ZXSDR RSUC User Manual
14 Confidential and Proprietary Information of ZTE CORPORATION
T 3 T
ABLE HE FUNCTIONS OF SUBSYSTEM
Part Description
RTR, the unit that integrates the processor, clock,
CPRI
transmitting and receiving functions, is the core
RTR unit of the ZXSDR RSUC.
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PA �
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DFL
Converts -48V DC input power supply to DC power
RPDC supply required by the PA, RTR, or DFL
Signal Processing Flow
The internal signal processing flow of ZXSDR RSUC is as below:
� Forwardlink processing
The business data from
mediate frequency processing. After the power amplification
sent to the antenna for transmission.
�
Reverselink processing
The reverse CDMA
baseband digital signal by RTR, then send to BBU.
Technical Specifications
Physical Indices
Dimension
The dimensions of ZXSDR RSUC in mm are : 482.6(H) × 88 (W)
× 360.0 (D).
interface, DPD digital predistortion, RF
Amplifies downlink RF signal input via the RTR
and then sends the signal to the DFL
Provides digital pre-distortion feedback signals
for the RTR
Provides a PA output enable/disable interface
Performs filtering and low noise amplification of
the reverse CDMA signal from the antenna
Filters the forward RF signal to be sent
Reports LNA alarms to the RTR
In the case of main/diversity combined cabinets,
the main receive LNA output end of the DFL
has the power splitter function and reserves an
external port (Rx out)
BBU enters the RTR, and then for inter-
signals from the antenna are converted to