US 11,057,176 B2
DM-RS transmission method and device in wireless mobile communication system
Jeongho Yeo, Hwaseong-si (KR); Taehyoung Kim, Seoul (KR); Cheolkyu Shin, Suwon-si (KR); Younsun Kim, Seongnam-si (KR); Sungjin Park, Incheon (KR); Jinyoung Oh, Seoul (KR); Youngbum Kim, Seoul (KR); and Seunghoon Choi, Seongnam-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 16/489,661
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Feb. 28, 2018, PCT No. PCT/KR2018/002488
§ 371(c)(1), (2) Date Aug. 28, 2019,
PCT Pub. No. WO2018/160015, PCT Pub. Date Sep. 7, 2018.
Claims priority of application No. 10-2017-0026570 (KR), filed on Feb. 28, 2017; and application No. 10-2017-0036945 (KR), filed on Mar. 23, 2017.
Prior Publication US 2020/0235874 A1, Jul. 23, 2020
Int. Cl. H04L 5/00 (2006.01); H04W 72/04 (2009.01)
CPC H04L 5/0048 (2013.01) [H04W 72/042 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method by a base station, in a wireless mobile communication system the method comprising:
identifying a service type of a terminal, the terminal being associated with a first antenna port;
determining a demodulation reference signal (DM-RS) pattern based on the identified service type of the terminal from among a first DM-RS pattern and a second DM-RS pattern, the first DM-RS pattern being based on a first resource corresponding to the first antenna port, and the second DM-RS pattern being based on a second resource corresponding to the first antenna port and a second antenna port; and
transmitting, to the terminal, a downlink control channel and a DM-RS based on the DM-RS pattern.