US 12,355,535 B2
Channel state information reporting method, receiving method, terminal, and network side device
Zhengxuan Liu, Beijing (CN); Hui Li, Beijing (CN); Qiubin Gao, Beijing (CN); and Runhua Chen, Beijing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 17/427,863
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Jan. 14, 2020, PCT No. PCT/CN2020/071916
§ 371(c)(1), (2) Date Aug. 2, 2021,
PCT Pub. No. WO2020/156136, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 201910108685.4 (CN), filed on Feb. 3, 2019; and application No. 201910124949.5 (CN), filed on Feb. 19, 2019.
Prior Publication US 2022/0116093 A1, Apr. 14, 2022
Int. Cl. H04B 7/06 (2006.01)
CPC H04B 7/0639 (2013.01) [H04B 7/0626 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A channel state information reporting method, comprising:
receiving codebook parameter information sent by a network side device;
determining an enhanced Type II codebook structure according to the codebook parameter information;
determining non-zero coefficient indication information according to the enhanced Type II codebook structure, wherein the non-zero coefficient indication information is used to indicate non-zero coefficient related information in a combined coefficient matrix in the enhanced Type II codebook structure;
sending the non-zero coefficient indication information to the network side device;
wherein the non-zero coefficient indication information comprises one or more of the following: a first beam set and a first basis vector set where the non-zero coefficients of each layer in the enhanced Type II codebook structure are located, first indication information used to indicate positions of beams of the first beam set among all beams and positions of basis vectors of the first basis vector set among all basis vectors;
wherein sending the non-zero coefficient indication information to the network side device comprises:
if the non-zero coefficient indication information comprises the first beam set and the first basis vector set, the first beam set and the first basis vector set being carried in the first part of the channel state information and sent to the network side device;
if the non-zero coefficient indication information comprises the first indication information, the first indication information being carried in the first part or the second part of the channel state information and sent to the network side device.