US 11,949,607 B2
Method and apparatus for coexistance of device-to-device communications and cellular communications in mobile communications system
Hoondong Noh, Suwon-si (KR); Yongjun Kwak, Yongin-si (KR); Donghan Kim, Osan-si (KR); Jinyoung Oh, Seoul (KR); Seunghoon Choi, Seongnam-si (KR); Jeongho Yeo, Hwaseong-si (KR); Youngbum Kim, Seoul (KR); Youngwoo Kwak, Suwon-si (KR); and Younsun Kim, Seongnam-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 26, 2020, as Appl. No. 17/080,113.
Application 17/080,113 is a continuation of application No. 16/089,940, granted, now 10,820,300, previously published as PCT/KR2017/003654, filed on Apr. 3, 2017.
Claims priority of application No. 10-2016-0039964 (KR), filed on Apr. 1, 2016; application No. 10-2016-0042513 (KR), filed on Apr. 6, 2016; application No. 10-2016-0057915 (KR), filed on May 12, 2016; and application No. 10-2016-0144884 (KR), filed on Nov. 2, 2016.
Prior Publication US 2021/0127360 A1, Apr. 29, 2021
Int. Cl. H04L 12/28 (2006.01); H04L 5/00 (2006.01); H04L 27/00 (2006.01); H04L 27/26 (2006.01); H04W 72/12 (2023.01); H04W 72/23 (2023.01); H04W 72/30 (2023.01); H04W 72/51 (2023.01); H04W 88/06 (2009.01); H04B 7/00 (2006.01); H04W 72/1268 (2023.01); H04W 72/1273 (2023.01)
CPC H04L 5/0032 (2013.01) [H04L 5/0053 (2013.01); H04L 5/0062 (2013.01); H04L 27/0006 (2013.01); H04L 27/26 (2013.01); H04W 72/1215 (2013.01); H04W 72/23 (2023.01); H04W 72/30 (2023.01); H04W 72/51 (2023.01); H04W 88/06 (2013.01); H04B 7/00 (2013.01); H04L 5/0023 (2013.01); H04L 27/2602 (2013.01); H04L 27/2603 (2021.01); H04W 72/1268 (2013.01); H04W 72/1273 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, configuration information for a channel state information reference signal (CSI-RS), the configuration information including information on a number of CSI-RS antenna ports, a type of code division multiplexing (CDM), and a plurality of CSI-RS configurations, wherein a CSI-RS configuration is associated with locations of CSI-RS resource elements (REs) of the CSI-RS configuration;
receiving, from the base station, the CSI-RS based on the configuration information for the CSI-RS;
obtaining channel state information (CSI) based on the received CSI-RS; and
transmitting, to the base station, the CSI,
wherein in case that the number of CSI-RS antenna ports is 24 or 32 and the type of CDM indicates CDM-8, the CSI-RS is based on a plurality of RE sets for a plurality of CDM-8 patterns, respectively, and an RE set includes 8 REs in a subframe, and
wherein the 8 REs are composed of a plurality of REs from each of the plurality of CSI-RS configurations.