US 12,355,516 B2
Terminal and base station in communication system
Wenjia Liu, Beijing (CN); Xiaolin Hou, Beijing (CN); Xin Wang, Beijing (CN); Yuki Matsumura, Tokyo (JP); and Nadisanka Rupasinghe, Tokyo (JP)
Assigned to NTT DOCOMO, INC., Tokyo (JP)
Appl. No. 18/258,633
Filed by NTT DOCOMO, INC., Tokyo (JP)
PCT Filed Dec. 29, 2020, PCT No. PCT/CN2020/140955
§ 371(c)(1), (2) Date Jun. 21, 2023,
PCT Pub. No. WO2022/141078, PCT Pub. Date Jul. 7, 2022.
Prior Publication US 2024/0048190 A1, Feb. 8, 2024
Int. Cl. H04K 1/10 (2006.01); H04B 7/0417 (2017.01); H04B 7/0456 (2017.01); H04L 27/28 (2006.01); H04B 7/06 (2006.01)
CPC H04B 7/0417 (2013.01) [H04B 7/0456 (2013.01); H04B 7/063 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A terminal in a communication system, comprising:
a communication apparatus configured to receive, from a base station in the communication system, first information indicating a first parameter, wherein the first parameter indicates a number of candidate transform domain vectors regarding a subcarrier-level precoding matrix, and a value of the first parameter is smaller than a number of subcarriers of the communication system;
the communication apparatus being further configured to receive, from the base station, second information indicating a second parameter, wherein the second parameter indicates a number of transform domain vectors used to determine the subcarrier-level precoding matrix; and
a processor configured to determine, from the number of candidate transform domain vectors indicated by the first information, the number of transform domain vectors indicated by the second information.