Patent ID: 11924015
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of wireless communication at a user equipment (UE), comprising:
transmitting a capability indication for more than one phase tracking reference signal (PT-RS) port for receiving a downlink shared channel based on a first transmission configuration indication (TCI) state and a second TCI state;
receiving a configuration for a maximum number of downlink PT-RS ports from a base station;
determining a number of downlink PT-RS ports based on a plurality of TCI states indicated in downlink control information (DCI) from the base station, wherein the number of downlink PT-RS ports is determined to be more than one when a number of the plurality of TCI states is more than one and a number of demodulation reference signal (DMRS) code division multiplexing (CDM) groups is more than one;
determining a first PT-RS port based on a first, lowest indexed demodulation reference signal (DMRS) port corresponding to the first TCI state; and
determining a second PT-RS port based on a second, lowest indexed DMRS port corresponding to the second TCI state.