US 11,901,988 B2
Method for reporting channel state information in comp system, and device for same
Haewook Park, Seoul (KR); Jiwon Kang, Seoul (KR); and Hyungtae Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/277,944
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Sep. 23, 2019, PCT No. PCT/KR2019/012370
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/060379, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10-2018-0114461 (KR), filed on Sep. 21, 2018; and application No. 10-2019-0091293 (KR), filed on Jul. 26, 2019.
Prior Publication US 2022/0131582 A1, Apr. 28, 2022
Int. Cl. H04W 72/044 (2023.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0626 (2013.01) [H04L 5/0053 (2013.01); H04W 72/044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. In a method of reporting channel state information (CSI) in a coordinated multi-point (CoMP) system, the method performed by a terminal,
receiving Synchronization Signal Block (SSB) from a first base station and a second base station, respectively;
receiving System Information (SI) from the first base station and the second base station, respectively, based on each the SSB;
performing Random Access (RA) procedure with the first base station and the second base station;
receiving first configuration information related to a channel state information (CSI) report of a first bandwidth part (BWP) from the first base station and second configuration information related to a CSI report of a second BWP from the second base station,
wherein the first BWP is composed of a plurality of first subbands including at least one first subband for the CSI report, and
wherein the second BWP is composed of a plurality of second subbands including at least one second subband for the CSI report;
based on that the at least one first subband and the at least one second subband partially or entirely overlap, obtaining a first CSI for overlapping at least one subband; and
reporting the first CSI to the first base station and the second base station.