US 11,956,043 B2
Method for reporting channel state information in wireless communication 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. 17/277,976
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 23, 2019, PCT No. PCT/KR2019/012368
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/060377, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10-2018-0114459 (KR), filed on Sep. 21, 2018; and application No. 10-2019-0091292 (KR), filed on Jul. 26, 2019.
Prior Publication US 2021/0376897 A1, Dec. 2, 2021
Int. Cl. H04B 7/06 (2006.01); H04B 7/024 (2017.01); H04L 1/08 (2006.01); H04L 1/1607 (2023.01); H04L 1/1867 (2023.01); H04L 5/00 (2006.01); H04W 24/10 (2009.01); H04W 72/0453 (2023.01)
CPC H04B 7/0626 (2013.01) [H04B 7/024 (2013.01); H04L 1/1614 (2013.01); H04W 24/10 (2013.01); H04W 72/0453 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of reporting channel state information (CSI) in a coordinated multi-point (CoMP) system, the method performed by a terminal:
receiving first configuration information related to a channel state information (CSI) report of a first bandwidth part (BWP) from a first base station and second configuration information related to a CSI report of a second BWP from a 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 of the first BWP, and
wherein the second BWP is composed of a plurality of second subbands including at least one second subband for the CSI report of the second BWP; and
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,
wherein the at least one first subband and the at least one second subband are indicated through a bitmap,
wherein based on that a size of the at least one first subband and a size of the at least one second subband are set differently for each other, a size of the bitmap is determined based on a number of resource blocks included in the first BWP and a number of resource blocks included in the second BWP and, granularity of the bitmap is determined based on the size of the at least one first subband and the size of the at least one second subband.