Configuring Demodulation Parameters - Rohde & Schwarz R&S FSV3-K106 User Manual

®
R&S FSV3-K106
Boosting estimation is always active.
Remote command:
[SENSe:][LTE:]DL:DEMod:BESTimation
Channel Estimation
Selects the method of channel estimation.
●
EVM 3GPP Definition
Channel estimation according to 3GPP TS 36.141. This method is based on aver-
aging in frequency direction and linear interpolation. Examines the reference signal
only.
●
Optimal, Pilot only
Optimal channel estimation method. Examines the reference signal only.
●
Optimal, Pilot and Payload
Optimal channel estimation method. Examines both the reference signal and the
payload resource elements.
Remote command:
[SENSe:][LTE:]DL:DEMod:CESTimation
Phase
Turns phase tracking on and off.
When you turn on phase tracking, the application compensates the measurement
results for the phase error on a symbol level.
"Off"
"Pilot Only"
"Pilot and Pay-
load"
Remote command:
[SENSe:][LTE:]DL:TRACking:PHASe
Time Tracking
Turns time tracking on and off.
Clock deviations (slower or faster sampling time) lead to a drift of the ideal sampling
instant over time, causing a rotating constellation diagram.
When you turn on time tracking, the application compensates the measurement results
for timing errors on a symbol level.
Remote command:
[SENSe:][LTE:]DL:TRACking:TIME

4.2.12 Configuring demodulation parameters

Access: "Overview" > "Demodulation"
Demodulation settings contain settings that describe signal processing and the way the
signal is measured.
User Manual 1178.9232.02 ─ 08
Phase tracking is not applied.
Only the reference signal is used for the estimation of the phase
error.
Both reference signal and payload resource elements are used for
the estimation of the phase error.
on page 141
on page 142
on page 142
on page 142
Configuration
I/Q measurements
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