LTE Multi Evaluation Measurement
R&S
®
CMW-KM5xx/-KS5xx
543
User Manual 1173.9628.02 ─ 16
In the Standalone (SA) scenario, this parameter is controlled by the measurement. In
the Combined Signal Path (CSP) scenario, it is controlled by the signaling application.
Remote command:
(SA)
(CSP)
Mixer Level Offset
Varies the input level of the mixer in the analyzer path. A negative offset reduces the
mixer input level, a positive offset increases it. Optimize the mixer input level according
to the properties of the measured signal.
Mixer Level
Offset
Advantages
Possible Shortcomings
< 0 dB
Suppression of distortion (e.g. of the inter-
modulation products generated in the
mixer)
Lower dynamic range (due to smaller sig-
nal-to-noise ratio)
> 0 dB
High signal-to-noise ratio, higher dynamic
range
Risk of intermodulation, smaller overdrive
reserve
In the Standalone (SA) scenario, this parameter is controlled by the measurement. In
the Combined Signal Path (CSP) scenario, it is controlled by the signaling application.
Remote command:
(SA)
(CSP)
3.3.4 Carrier Aggregation Settings
To measure an UL signal with carrier aggregation, select the corresponding carrier
aggregation mode within the analyzer settings at the top of the configuration tree.
As a consequence, an additional node is displayed for configuration of the individual
component carriers. The band, channel and frequency settings are moved into this
node, as well as the channel bandwidth setting from the "Measurement Control" sec-
tion.
These settings are described in the following. Other parameters that depend on the
carrier aggregation mode are the spectrum limits and the network signaled value.
Some measurement result views are also modified depending on the carrier aggrega-
tion mode.
Option R&S CMW-KM502/552 is required for FDD/TDD carrier aggregation. Without
these options, the parameters in this section are not visible.
GUI Reference
深圳德标仪器
135-1095-0799
