US 12,170,561 B2
Method state in wireless communication system, and device therefor
Jaehoon Chung, Seoul (KR); Haewook Park, Seoul (KR); and Jiwon Kang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/607,832
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Apr. 29, 2020, PCT No. PCT/KR2020/005728
§ 371(c)(1), (2) Date Oct. 29, 2021,
PCT Pub. No. WO2020/222548, PCT Pub. Date Nov. 5, 2020.
Claims priority of provisional application 62/841,231, filed on Apr. 30, 2019.
Claims priority of provisional application 62/841,233, filed on Apr. 30, 2019.
Claims priority of provisional application 62/841,228, filed on Apr. 30, 2019.
Claims priority of provisional application 62/841,226, filed on Apr. 30, 2019.
Claims priority of provisional application 62/841,235, filed on Apr. 30, 2019.
Prior Publication US 2022/0239357 A1, Jul. 28, 2022
Int. Cl. H04B 7/06 (2006.01); H04B 7/0456 (2017.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0456 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system, the method comprising:
receiving, from a base station (BS), CSI related configuration information;
receiving, from the BS, a reference signal;
calculating the CSI based on the reference signal; and
transmitting, to the BS, the CSI,
wherein the calculating of the CSI includes quantizing an amplitude coefficient included in a matrix related to a codebook,
wherein a first set of a reference amplitude for quantization of the amplitude coefficient and a second set of a differential amplitude are predefined, and
wherein the amplitude coefficient is quantized based on a subset of (i) the first set and (ii) the second set.