US 11,870,717 B2
Method for transmitting and receiving channel state information reference signal in wireless communication system, and apparatus
Haewook Park, Seoul (KR); Jonghyun Park, Seoul (KR); Kijun Kim, Seoul (KR); and Hyukjin Chae, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 16/088,050
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Mar. 24, 2017, PCT No. PCT/KR2017/003187
§ 371(c)(1), (2) Date Sep. 24, 2018,
PCT Pub. No. WO2017/164688, PCT Pub. Date Sep. 28, 2017.
Claims priority of provisional application 62/313,116, filed on Mar. 24, 2016.
Claims priority of provisional application 62/315,642, filed on Mar. 30, 2016.
Claims priority of provisional application 62/368,134, filed on Jul. 28, 2016.
Claims priority of provisional application 62/401,917, filed on Sep. 30, 2016.
Claims priority of provisional application 62/417,432, filed on Nov. 4, 2016.
Prior Publication US 2023/0155758 A1, May 18, 2023
Int. Cl. H04L 5/00 (2006.01); H04J 11/00 (2006.01)
CPC H04L 5/0048 (2013.01) [H04J 11/00 (2013.01); H04J 2011/0006 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for receiving a channel state information-reference signal (CSI-RS) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station, CSI-RS configuration information about a CSI-RS configuration to which the CSI-RS is mapped; and
receiving the CSI-RS transmitted from the base station through plurality of antenna ports based on the received CSI-RS configuration information,
wherein, when the CSI-RS configuration is a 32-port CSI-RS configuration into which four 8-port CSI-RS configurations are aggregated, a code division multiplexed (CDM)-8 pattern, in which the number of orthogonal weight vectors is 8, is applied to the 32-port CSI-RS configuration,
wherein the CDM-8 pattern is applied to a plurality of resource element (RE) pairs selected for each of the four 8-port CSI-RS configurations,
wherein all or some of the plurality of RE pairs are not contiguous in at least one of a time domain and a frequency domain.