US 12,009,899 B2
Reporting rank indication and layer-specific coefficient quantities for type II channel state information (CSI) compression using two-part CSI
Qiaoyu Li, Beijing (CN); Liangming Wu, Beijing (CN); Chenxi Hao, Beijing (CN); Yu Zhang, Beijing (CN); Chao Wei, Beijing (CN); Hao Xu, Beijing (CN); Parisa Cheraghi, Cambridge (GB); and Wanshi Chen, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/310,444
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 4, 2020, PCT No. PCT/CN2020/074255
§ 371(c)(1), (2) Date Aug. 3, 2021,
PCT Pub. No. WO2020/160700, PCT Pub. Date Aug. 13, 2020.
Claims priority of application No. PCT/CN2019/074727 (WO), filed on Feb. 6, 2019.
Prior Publication US 2022/0131589 A1, Apr. 28, 2022
Int. Cl. H04B 7/0417 (2017.01); H04B 7/06 (2006.01)
CPC H04B 7/0658 (2013.01) [H04B 7/0626 (2013.01); H04B 7/063 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), comprising:
transmitting, in a first part of two-part channel state information (CSI), a rank indication (RI) and an indication of one or more numbers of first coefficients to be used to characterize compressed CSI for one or more layers; and
transmitting, in a second part of the two-part CSI, an indication of one or more numbers of second coefficients to be used to characterize compressed CSI for one or more beams for the one or more layers.