Signal Routing and System Configuration
R&S
®
SMW200A
127User Manual 1175.6632.02 ─ 16
Signal routing
This is an easy method for a simple signal routing task involving routing and summing
of the baseband signals up to the output of the "Fading" block. The available routing
possibilities are grouped in the "Signal Routing" sections of the corresponding block.
The signal routing influences:
●
The signal flow of the baseband sources
●
The routing of the output fading signal for the non-MIMO cases.
The provided settings are sufficient for standard test configurations with Tx or Rx diver-
sity measurements with two antennas.
Refer to Chapter 3.5, "Signal Routing Settings", on page 166 for detailed description
of the provided settings.
Drag&Drop blocks
Basically, this functionality achieves the same effect as the signal routing settings but
extends it. It adds the possibility to route the generated streams to any of the digital
and analog output connectors of the instrument. In other words, it covers the complete
baseband domain including the functionality of the I/Q stream mapper.
●
To route the baseband signal, select the corresponding block ("Baseband A/B" or
"BB Input A"). Drag it to the block of the signal it should be routed through, e.g.
"Fading A/B". The allowed routing possibilities are highlighted. The block diagram
shows the resulting signal flow.
●
To map a stream, select the "AWGN" block and drag it to the connector of the
stream it should be output at, e.g. "BBMM 2". If the associated block is hidden, it
unfolds.
Open the "I/Q Stream Mapper" to verify the routing.
●
To break up the routing, perform the reverse operation, i.e. select the "Fading A/B"
block and drop it to the corresponding "Baseband A/B" or "BB Input A" block.
3.2.2 Using the System Configuration Capabilities
Fading/Baseband Configuration
Another way to configure the signal routing of the baseband signal and the fading block
is to use the "System Configuration > Fading/Baseband Configuration" settings. The
configuration settings are provided for two modes, for the standard non-MIMO configu-
ration and for the advanced MIMO configuration respectively.
●
The "Standard" fading and baseband configuration settings are a more detailed
representation of the "Fading > Signal Routing" settings. The dialog provides some
additional description, e.g. the common application of the current configuration.
●
The "Advanced" fading and baseband configuration is required for the configuration
of complex LxMxN MIMO scenarios.
Possible Ways to Configure the Signal Flow
To Next Page
Loading...
