Patent number: 10320544
Abstract: A method for transmitting a demodulation reference signal (DM-RS), by a user equipment (UE), in a wireless communication system is discussed. The method includes receiving, by the UE from a base station, a cyclic shift field in downlink control information (DCI), wherein the cyclic shift field indicates first, second, and third cyclic shift values for first, second, and third layers respectively, generating, by the UE, first, second, and third DMRSs for the first, second, and third layers respectively, based on first, second, and third cyclic shifts respectively, wherein the first, second, and third cyclic shifts are determined based on the first, second, and third cyclic shift values respectively, and transmitting, by the UE to the base station, the first, second, and third DMRSs.
Type:
Grant
Filed:
March 6, 2018
Date of Patent:
June 11, 2019
Assignee:
LG ELECTRONICS INC.
Inventors:
Min Seok Noh, Hyun Soo Ko, Seung Hee Han, Jae Hoon Chung, Moon Il Lee