Patent ID: 11870731
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, performed by a user equipment, of transmitting an uplink reference signal or channel in a wireless communication system, the method comprising:
receiving, from a base station through radio resource control (RRC) signaling, information indicating one of implicit precoding or explicit precoding and information configuring a plurality of sounding reference signal (SRS) resources, wherein the plurality of SRS resources are related with one channel state information-reference signal (CSI-RS) resource;
acquiring an SRS resource indicator (SRI) in downlink control information (DCI) received through a physical control channel, wherein the SRI indicates at least one SRS resource from among the plurality of SRS resources;
based on the implicit precoding being indicated, obtaining precoding information for the uplink channel based on the CSI-RS resource related with a most recently transmitted SRS of the at least one SRS resource indicated by the SRI; and
transmitting, to the base station, the uplink channel based on the precoding information.