Beam Pattern Summary (5G NR/5G-Advanced)

There are two types of traces in the Trace > Data > Demod and MIMO Multiple Input, Multiple Output: A physical layer (PHY) configuration in which both transmitter and receiver use multiple antennas. menus that display component carrier data: CCn (component carrier is fixed), and Selected Display CC (component carrier is dynamically selected using the Display parameter). See About Per-Carrier Trace Types for more information.

This table summarizes the beam peaks of all users on all layers in all antenna groups per physical channel.

Labels

Name - Each beam is assigned a name by the VSA software based on the physical channel(s) selected and other settings in the Beam Patterns Include parameter group. Physical channels include:

SSB - SSBn_Periodn_Blockn

PDSCH Physical Downlink Shared Channel - PDSCHn_Layern

PUSCH - PUSCHn_Layern

CSI channel state information-RS - CSI-RSn_Portn

Physical Channel - (default: not visible) Identifies the physical channel included in the beam.

User - (default: not visible) Identifies the user for each beam.

PeriodIndex - (default: not visible) Identifies the period index for each beam.

Layer - (default: not visible) Identifies the beam's layer number.

AntennaGroupIndex - (default: not visible) Identifies the beam's antenna group index.

Metrics

Azimuth Peak (deg) - Displays the beam's azimuth angle.

Elevation Peak (deg) - Displays the beam's elevation angle.

Azimuth Width (deg) - Displays the beam's angle width in the azimuth plane.

Elevation Width (deg) - ) Displays the beam's angle width in the elevation plane.

Peak Power per RE (dBm deciBels referenced to a milliWatt: dB relative to 1 milliwatt dissipated in the nominal input impedance of the analyzer) - Displays the absolute power in dBm of the current lobe peak.

Peak Power per RE (dB) - Displays the peak power in dB, relative to the total power of the corresponding layer or SSB block (port). The Portn Peak Power(dB) = Portn Beam Peak Power(dBm) – Portn_TotalPower.

In releases earlier than 29.40, Peak Power (dB) was measured relative to the maximum Beam Peak Power of all layers and SSB blocks, resulting in a much higher value.