US 12,483,305 B2
Multiple spatial data streams via a re-configurable reflective device
Fredrik Rusek, Eslöv (SE); Jose Flordelis, Lund (SE); Kun Zhao, Malmö (SE); Olof Zander, Södra Sandby (SE); and Erik Bengtsson, Eslöv (SE)
Assigned to Sony Grop Corporation, Tokyo (JP)
Appl. No. 18/038,314
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Dec. 7, 2021, PCT No. PCT/EP2021/084546
§ 371(c)(1), (2) Date May 23, 2023,
PCT Pub. No. WO2022/122717, PCT Pub. Date Jun. 16, 2022.
Claims priority of application No. 2051427-9 (SE), filed on Dec. 7, 2020.
Prior Publication US 2023/0421206 A1, Dec. 28, 2023
Int. Cl. H04B 7/04 (2017.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01)
CPC H04B 7/0481 (2023.05) [H04B 7/04013 (2023.05); H04B 7/0482 (2013.01); H04B 7/0691 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of operating a re-configurable reflective device (RD) wherein one or more wireless communication devices are served by an access node via the RD using multiple spatial data streams, wherein the RD comprises multiple reflective elements, the multiple reflective elements being grouped into a plurality of subsets, the multiple reflective elements of each subset being re-configurable to provide multiple spatial filters, wherein the method comprises:
obtaining, from the access node and for each subset of the plurality of subsets, a respective first indicator indicative of a respective entry of a respective first codebook and a respective second indicator indicative of a respective entry of a respective second codebook, and
re-configuring, for each subset of the plurality of subsets, the respective multiple reflective elements to provide a respective one of the multiple spatial filters, based on the respective entry of the respective first codebook and the respective entry of the respective second codebook.