US 12,470,349 B2
Method and apparatus for configuring demodulation reference signal information in wireless cellular communication system
Cheolkyu Shin, Gyeonggi-do (KR); Youngwoo Kwak, Gyeonggi-do (KR); Taehyoung Kim, Gyeonggi-do (KR); and Hoondong Noh, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd., Seoul (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Jun. 15, 2023, as Appl. No. 18/335,555.
Application 18/335,555 is a continuation of application No. 17/147,170, filed on Jan. 12, 2021, granted, now 11,683,141.
Application 17/147,170 is a continuation of application No. 16/227,604, filed on Dec. 20, 2018, granted, now 10,897,755, issued on Jan. 19, 2021.
Claims priority of application No. 10-2017-0178380 (KR), filed on Dec. 22, 2017; and application No. 10-2018-0008885 (KR), filed on Jan. 24, 2018.
Prior Publication US 2023/0344596 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/232 (2023.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 72/044 (2023.01); H04W 72/23 (2023.01); H04W 72/0446 (2023.01)
CPC H04L 5/0051 (2013.01) [H04L 5/005 (2013.01); H04L 5/0094 (2013.01); H04L 27/26 (2013.01); H04L 27/261 (2013.01); H04W 72/044 (2013.01); H04W 72/23 (2023.01); H04L 5/0007 (2013.01); H04L 5/0048 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, configuration information on a demodulation reference signal (DM-RS), via a radio resource control (RRC) signaling;
receiving, from the base station, downlink control information (DCI) including scheduling information for a physical downlink shared channel (PDSCH);
identifying first information associated with an additional DM-RS based on the configuration information;
identifying a mapping type of the PDSCH based on the DCI;
identifying a position of at least one DM-RS symbol based on the first information, the mapping type, a number of symbols for a DM-RS, and information on a duration in symbols; and
receiving, from the base station, at least one DM-RS based on the position of the at least one DM-RS symbol,
wherein the duration in symbols is determined based on PDSCH resources scheduled by the scheduling information of the DCI.