US 11,870,731 B2
Method and device for transmitting/receiving uplink reference signal or channel in wireless communication system
Hoon-dong Noh, Gyeonggi-do (KR); Young-woo Kwak, Gyeonggi-do (KR); and Cheol-kyu Shin, Gyeongg-do (KR)
Assigned to Samsung Electronics Co., Ltd
Appl. No. 16/754,923
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
PCT Filed Oct. 23, 2018, PCT No. PCT/KR2018/012582
§ 371(c)(1), (2) Date Apr. 9, 2020,
PCT Pub. No. WO2019/083260, PCT Pub. Date May 2, 2019.
Claims priority of application No. 10-2017-0137370 (KR), filed on Oct. 23, 2017.
Prior Publication US 2020/0313827 A1, Oct. 1, 2020
Int. Cl. H04L 5/00 (2006.01); H04W 72/044 (2023.01); H04W 72/23 (2023.01)
CPC H04L 5/0057 (2013.01) [H04L 5/0023 (2013.01); H04L 5/0094 (2013.01); H04W 72/046 (2013.01); H04W 72/23 (2023.01)] 10 Claims
OG exemplary drawing
 
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.