US 12,356,448 B2
Overhead reduction for high-resolution multi-transmission-reception point (mult-TRP) precoding matrix indication (PMI)
Liangming Wu, Beijing (CN); Chenxi Hao, Beijing (CN); Yu Zhang, San Diego, CA (US); Chao Wei, Beijing (CN); Qiaoyu Li, Beijing (CN); Min Huang, Beijing (CN); and Wanshi Chen, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/759,969
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 13, 2020, PCT No. PCT/CN2020/075042
§ 371(c)(1), (2) Date Aug. 2, 2022,
PCT Pub. No. WO2021/159376, PCT Pub. Date Aug. 19, 2021.
Prior Publication US 2023/0062132 A1, Mar. 2, 2023
Int. Cl. H04L 12/00 (2006.01); H04W 72/23 (2023.01); H04W 74/0808 (2024.01)
CPC H04W 74/0808 (2013.01) [H04W 72/23 (2023.01)] 27 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), the method comprising:
receiving a configuration indicating a precoder size parameter for a plurality of transmission-reception points (TRPs) comprising a first TRP and a second TRP, wherein the receiving the configuration includes receiving the precoder size parameter associated with a first precoder of the first TRP and a second precoder of the second TRP, and wherein the precoder size parameter is further associated with at least one of a quantity of spatial domain components, a quantity of frequency domain components, a parameter associated with a quantity of coefficients, or a quantization level for the coefficients;
receiving from a first TRP of the plurality of TRPs, a first reference signal; receiving
from a second TRP of the plurality of TRPs, a second reference signal, the second TRP being different from first TRP; and
transmitting to the first TRP or the second TRP, a channel state information (CSI) report including a first feedback component based on the first reference signal and a second feedback component based on the second reference signal, wherein a combined payload size of the first feedback component and the second feedback component is based on the precoder size parameter.