Keysight M9383B Measurement Manual page 150

5G NR Measurements Using the VSA Software
5G Waveform and EVM Analysis Using VSA Software
15.USelect DL-SCHs > DL-SCH1 > Transmission and set:
150
— DMRS port(s) to 0,1
— Number of DMRS CDM groups without data to 2
Notice that Number of Layers is updated to 2 and each layer is assigned
with a particular DMRS port. Antenna Ports Generated is automatically
assigned p0,p1, which will map generated multiple antenna port signals
to different antennas (instruments).
M9383B/84B Measurement Guide