Rohde & Schwarz EX-IQ-BOX, Руководство пользователя

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Application Examples
R&S
®
EX-IQ-BOX
48 User Manual 1409.5570.32 ─ 05
reproducibly. With the aid of bit and block error ratio measurements the quality of the
receiver can be tested.
5.2 CPRI Test Setup
The following test setups show two typical CPRI test scenarios with the R&S EX-IQ-BOX.
First, the R&S EX-IQ-BOX emulates the baseband module, and in the other example, it
acts as the RF part.
5.2.1 Typical CPRI RE Test Setup
Example of a typical CPRI RE ( R adio E quipment = RF unit) test scenario, where the
R&S EX-IQ-BOX acts as a baseband module REC ( R emote E quipment C ontrol).
The test setup requires the CPRI breakout board, option R&S EXBOX-B85, the CPRI RE
Test, option R&S EXBOX-K10 and the configuration software R&S
DigIConf. For details
on available options, see
​
chapter 3.2.2.1, "Standardized Protocols" , on page 22.
CPRI RE
(Radio Equipment)
Digital IQ data
R&S
IQ format
Breakout board
R&S EX-IQ-BOX
Bidirectional
mode
R&S
IQ format
USB control
R&S FSQ
R&S SMU200A
RX
TX
RF Baseband
Receiver
Transmitter
R&S FSQ
Receiver
R&S SMU200A
Transmitter
R&S DigIConf
Optical or
electrical link
Reference
CPRI link
Uplink
Downlink
Fig. 5-2: Application example of a RE test setup with the digital interface protocol CPRI
CPRI Test Setup