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Rohde & Schwarz R&S SMW200A - How to Generate a 2 X8 MIMO Signal for BS Tests

Rohde & Schwarz R&S SMW200A
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Signal Routing and System Configuration
R&S
®
SMW200A
204User Manual 1175.6632.02 ─ 30
To create an SCPI sequence or your own initialization sequence and send it to an R&S
SGS connected to the I/Q interface, proceed as follows:
1. On a remote computer, open the notepad or other similar tool.
Write a sequence of SCPI commands.
2. Store the SCPI sequence in a file with file extension *.iec.
3. Use one of the standard file transfer methods to transfer the file to the user direc-
tory /usb/ of the R&S SMW.
See Chapter 11.9, "How to Transfer Files from and to the Instrument",
on page 696.
4. Select "System Config > System Configuration > External RF und I/Q".
5. Select "I/Q OUT 1 > External Instrument > Config"
6. Select "External Instrument Configuration > Remote Control":
a) Select "Mode > Sequence".
b) Select "File" and select the *.iec file form the user directory /usb/.
c) Select "Send Sequence".
7. Alternativel:
a) Select "External Instrument Configuration > Initialization Sequence".
b) Select "Initialization Sequence" and select the *.iec file form the user direc-
tory /usb/.
See also:
Example "Controlling the R&S SMW and external RF instruments with the same
application program" on page 908
Example "Connecting an external instrument and sending SCPI commands to it"
on page 911
4.9.7 How to Generate a 2x8 MIMO Signal for BS Tests
Refer to Table 4-1 to find out the suitable system configuration and the required addi-
tional instruments for this particular test.
There are two suitable test setups:
A test setup with one R&S SMW and six R&S SGT
See "Test setup with R&S SMW and 6xR&S SGT" on page 204
A test setup with multiplexed digital output signals
See user manual R&S SMW-K551 Generation of Digital "Slow IQ" Signals.
Test setup with R&S SMW and 6xR&S SGT
This test setup is a logical extension of the 1x4x4 test case.
How to Connect External Instruments and Configure the Signal Flow

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