US 12,009,893 B2
Methods and devices for reporting and processing channel state information, and storage medium
Yong Li, Guangdong (CN); Hao Wu, Guangdong (CN); Yu Ngok Li, Guangdong (CN); Zhaohua Lu, Guangdong (CN); and Yijian Chen, Guangdong (CN)
Assigned to ZTE CORPORATION, Guangdong (CN)
Appl. No. 17/266,740
Filed by ZTE CORPORATION, Guangdong (CN)
PCT Filed Aug. 12, 2019, PCT No. PCT/CN2019/100165
§ 371(c)(1), (2) Date Feb. 8, 2021,
PCT Pub. No. WO2020/030171, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 201810909262.8 (CN), filed on Aug. 10, 2018.
Prior Publication US 2021/0314044 A1, Oct. 7, 2021
Int. Cl. H04L 27/28 (2006.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0632 (2013.01); H04B 7/0634 (2013.01); H04L 5/0094 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for reporting channel state information (CSI), comprising:
dividing M subbands to be reported into two sets, wherein a first set comprises N of the M subbands, M is a positive integer greater than 1, N is a positive integer greater than or equal to 1, and M−N≥1;
determining a relative value between CSI of each subband in a second set and CSI of a reference subband corresponding to the each subband in the second set; and
reporting CSI of each subband in the first set and the relative value of the each subband in the second set to a base station;
wherein dividing the M subbands to be reported into two sets comprises:
calculating a channel quality indicator (CQI) value of each of the M subbands;
selecting first N subbands having CQI values from high to low as subbands in the first set; and
using remaining subbands among the M subbands other than the N subbands as subbands in the second set.