US 12,348,290 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)
Filed by ZTE CORPORATION, Guangdong (CN)
Filed on May 10, 2024, as Appl. No. 18/660,393.
Application 18/660,393 is a continuation of application No. 17/266,740, granted, now 12,009,893, previously published as PCT/CN2019/100165, filed on Aug. 12, 2019.
Claims priority of application No. 201810909262.8 (CN), filed on Aug. 10, 2018.
Prior Publication US 2024/0291540 A1, Aug. 29, 2024
This patent is subject to a terminal disclaimer.
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)] 17 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 reporting the CSI of the each subband in the first set and the relative value of the each subband in the second set to the base station comprises:
a number of bits used for reporting the CSI of the each subband in the first set being greater than a number of bits used for reporting the relative value of the each subband in the second set;
and
in a case where the number of bits used for reporting the relative value of the each subband in the second set is 1, a zero state of the bit indicates that the CSI of the each subband in the second set is unchanged with respect to the CSI of the reference subband of the each subband in the second set, and a non-zero state of the bit indicates that the CSI of the each subband in the second set changes in a preset direction and by a preset magnitude with respect to the CSI of the reference subband of the each subband in the second set.