US 11,818,668 B2
Method and apparatus for transmitting uplink demodulation reference signals
Jingxing Fu, Beijing (CN); Bin Yu, Beijing (CN); Chen Qian, Beijing (CN); and Qi Xiong, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 22, 2022, as Appl. No. 17/726,945.
Application 17/726,945 is a continuation of application No. 16/460,403, filed on Jul. 2, 2019, granted, now 11,323,967, issued on May 3, 2022.
Application 16/460,403 is a continuation of application No. 15/474,604, filed on Mar. 30, 2017, granted, now 10,362,542, issued on Jul. 23, 2019.
Claims priority of application No. 201610200510.2 (CN), filed on Mar. 31, 2016; application No. 201610320080.8 (CN), filed on May 13, 2016; application No. 201610694476.9 (CN), filed on Aug. 19, 2016; and application No. 201610834849.8 (CN), filed on Sep. 20, 2016.
Prior Publication US 2022/0248341 A1, Aug. 4, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/04 (2023.01); H04W 74/00 (2009.01); H04W 52/24 (2009.01); H04L 5/00 (2006.01); H04W 52/14 (2009.01); H04W 52/32 (2009.01); H04W 72/21 (2023.01); H04L 5/14 (2006.01)
CPC H04W 52/246 (2013.01) [H04L 5/0016 (2013.01); H04L 5/0048 (2013.01); H04L 5/0094 (2013.01); H04W 52/146 (2013.01); H04W 52/325 (2013.01); H04W 72/21 (2023.01); H04L 5/1469 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, a radio resource control (RRC) message including configuration information for an uplink demodulation reference signal (DMRS);
receiving, from the base station, downlink control information (DCI) for scheduling a physical uplink shared channel (PUSCH);
identifying the uplink DMRS based on the configuration information and the DCI; and
transmitting, to the base station, the identified uplink DMRS with the PUSCH,
wherein the configuration information relates to an actual number of one or more symbols for the uplink DMRS,
wherein the DCI includes information related to a time-domain orthogonal cover code (OCC) for the uplink DMRS among a set of time-domain OCCs, and
wherein a length of respective time-domain OCCs depends on the actual number of the one or more symbols for the uplink DMRS.