Signal Control and Signal Characteristics
R&S
®
SMW-K144
138User Manual 1178.8013.02 ─ 06
To adjust the value, select "Status bar > Level".
●
Selected power calculation method
To define it, select "General > Output/Power > Power > Power Mode"
●
Selected relative signal and channel power values
– "5G New Radio > General > Node > SS/PBCH" > "PSS/SSS Power"
on page 40
– "5G New Radio > General > Node > SS/PBCH" > "PBCH Power" on page 40
– "5G New Radio > General > Node > Dummy REs" > "Power" on page 42
– "Scheduling > User x BWP x > Content > PDSCH/PUSCH > Settings > Config"
> "Power" on page 92
General principles
By selecting the power calculation method ("Power Mode"), you define the power level
at the first instrument's output. The signal power level of the other outputs is calcu-
lated automatically according to the current power relations of all channels and signals.
Relative vs absolute power
All the relative channel and signal power values are set relative to each other.
Example:
If "PSS Power = 2 dB" and "SSS Power = -3 dB", then the power level of the SSS sub-
carriers is with 5 dB higher than the power level of the PSS subcarriers.
The absolute power level of one resource element depends on the selected "Power
Mode" and on the configuration during the remaining subframes.
Power mode and the different power calculation methods
The value displayed in the "Status bar > Level" is the current RMS level at the output.
The RMS and PEP values are calculated different, depending on the selected "5G New
Radio" > "Output/Power" > "Power" > Power Mode.
6.7.1 Power Settings
Access:
► Select "5G New Radio" > "Output/Power" > "Power".
This dialog comprises the settings required for configuring the output power.
Adjusting the Signal Power
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