US 11,722,339 B2
Pilot information system sending method, channel estimation method, and communications device
Jianjun Li, Guangdong (CN); Yang Song, Guangdong (CN); and Fei Qin, Guangdong (CN)
Assigned to VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed by VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed on Nov. 14, 2022, as Appl. No. 17/985,956.
Application 17/985,956 is a continuation of application No. PCT/CN2021/093013, filed on May 11, 2021.
Claims priority of application No. 202010414538.2 (CN), filed on May 15, 2020.
Prior Publication US 2023/0073228 A1, Mar. 9, 2023
Int. Cl. H04L 25/02 (2006.01); H04L 27/26 (2006.01)
CPC H04L 25/0202 (2013.01) [H04L 27/26025 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A pilot information symbol sending method, applied to a transmit end and comprising:
determining, based on a discrete Fourier transform (DFT) matrix and a sensing matrix, a pilot information symbol corresponding to each antenna on each pilot resource; and
sending a corresponding pilot information symbol on each of the pilot resources for each of the antennas; wherein
the sensing matrix is determined through training of channel information.