US 12,476,688 B2
Generating and steering orbital angular momentum beams
Wei Xi, Beijing (CN); Yu Zhang, San Diego, CA (US); Hao Xu, Beijing (CN); Min Huang, Beijing (CN); Chao Wei, Beijing (CN); Changlong Xu, Beijing (CN); Liangming Wu, Beijing (CN); Chenxi Hao, Beijing (CN); Qiaoyu Li, Beijing (CN); Kangqi Liu, San Diego, CA (US); Jing Dai, Beijing (CN); Rui Hu, Beijing (CN); and Jian Li, Shanghai (CN)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 18/003,099
Filed by QUALCOMM INCORPORATED, San Diego, CA (US)
PCT Filed Aug. 19, 2020, PCT No. PCT/CN2020/109925
§ 371(c)(1), (2) Date Dec. 22, 2022,
PCT Pub. No. WO2022/036577, PCT Pub. Date Feb. 24, 2022.
Prior Publication US 2023/0261722 A1, Aug. 17, 2023
Int. Cl. H04B 7/06 (2006.01); H01Q 3/26 (2006.01); H04B 7/08 (2006.01)
CPC H04B 7/06956 (2023.05) [H01Q 3/26 (2013.01); H04B 7/086 (2013.01)] 42 Claims
OG exemplary drawing
 
1. A method for wireless communication at a first device, comprising:
determining a first ring area based at least in part on an angular direction over which the first device can communicate with a second device using an orbital angular momentum beam, wherein the angular direction is relative to a planar array comprising a plurality of antenna elements and the first ring area is oriented at the angular direction;
determining a second ring area on the planar array based at least in part on a projection of the first ring area on the planar array;
activating a set of antenna elements that are located within the second ring area on the planar array;
deactivating a remainder of the plurality of antenna elements that are located outside of the second ring area on the planar array;
and
transmitting, to the second device, the orbital angular momentum beam via the set of antenna elements according to the angular direction.