CONFIGURATION OF RECONFIGURABLE INTELLIGENT SURFACES (RIS) SELECTION

WIPO Patent Application WO/2022/221976

A1

Aspects of the disclosure relate to selecting a set of reconfigurable intelligent surfaces (RISs). The user equipment (UE) may be configured to receive a first reference signal via a direct channel and receive at least two second reference signals via the direct channel and at least two corresponding first channels that transit corresponding RISs. The UE may further measure the direct channel based on the first reference signal and measure the direct channel with the at least two first channels based on the at least two corresponding second reference signals. The UE may further receive a codebook for determining one or more second channels and determine the one or more second channels based on the codebook, the direct channel, and the at least two first channels. The UE may report channel information based on the one or more second channels. Other aspects, embodiments, and features are also claimed and described.

MANOLAKOS ALEXANDROS (US)
ZHANG YU (US)
LY HUNG DINH (US)
ELSHAFIE AHMED (US)

PCT/CN2021/088018

October 27, 2022

April 19, 2021

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QUALCOMM INC (US)
MANOLAKOS ALEXANDROS (US)
ZHANG YU (CN)
LY HUNG DINH (US)
ELSHAFIE AHMED (US)

H04B7/0417; H04B7/0456; H04B7/06; H04B7/145; H04L25/02

CN111917448A

2020-11-10

NING BOYU ET AL: "Terahertz Multi-User Massive MIMO With Intelligent Reflecting Surface: Beam Training and Hybrid Beamforming", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 70, no. 2, 15 January 2021 (2021-01-15), pages 1376 - 1393, XP011841715, ISSN: 0018-9545, [retrieved on 20210309], DOI: 10.1109/TVT.2021.3052074

NTD PATENT & TRADEMARK AGENCY LTD. (CN)

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