US 11,943,021 B2
Electronic apparatus and radio communication method in radio communication system
Gaosi Li, Beijing (CN); Jinhui Chen, Beijing (CN); Xin Zhang, Beijing (CN); Zaixue Wei, Beijing (CN); and Nanxi Li, Beijing (CN)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Filed by Sony Group Corporation, Tokyo (JP)
Filed on Jun. 3, 2021, as Appl. No. 17/337,442.
Application 17/337,442 is a continuation of application No. 16/538,829, filed on Aug. 13, 2019, granted, now 11,050,471.
Application 16/538,829 is a continuation of application No. 15/560,853, granted, now 10,432,277, issued on Oct. 1, 2019, previously published as PCT/CN2015/092838, filed on Oct. 26, 2015.
Claims priority of application No. 201510147430.0 (CN), filed on Mar. 31, 2015.
Prior Publication US 2021/0297132 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/06 (2006.01); H04B 7/0413 (2017.01); H04B 7/0456 (2017.01)
CPC H04B 7/0617 (2013.01) [H04B 7/0413 (2013.01); H04B 7/0469 (2013.01); H04B 7/0626 (2013.01); H04B 7/0639 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electronic device in a wireless communication system, comprising circuitry configured to:
receive, from a Base Station, an RRC signaling comprising antenna configuration information, wherein the antenna configuration information comprises a codebook subset restriction that indicates a number of ports of the Base Station;
determine a PMI based on the antenna configuration information;
transmit, to the Base Station, feedback information comprising the PMI,
wherein the antenna configuration information is applicable to an antenna array of the Base Station,
wherein the antenna array of the Base Station comprises a plurality of antenna units, and
wherein the antenna configuration information comprises a number of TXRU of the plurality of antenna units.