公开(公告)号：US20230370122A1

公开(公告)日：2023-11-16

申请号：US18186895

申请日：2023-03-20

Applicant: Apple Inc.

Inventor： Bertram R Gunzelmann ,  Stefan Meyer ,  Jan Ellenbeck

IPC: H04B7/04 ,  H04B7/06 ,  H01Q3/46

CPC classification number: H04B7/04013 ,  H04B7/0696 ,  H01Q3/46

Abstract: A user equipment (UE) device may communicate with an access point (AP) at greater than 100 GHz via a reconfigurable intelligent surface (RIS). The AP may perform a control RAT discovery with the RIS and then a data transfer RAT discovery, during which the AP uses the control RAT to control the RIS to sweep over different RIS beams. The AP may transmit radar waveforms while concurrently sweeping over different AP beams. The AP may gather performance metric values from the radar waveforms after reflection off the RIS during the sweep. The AP may identify an optimal RIS beam that produced the best performance metric values. The AP may use the optimal RIS beam to identify the orientation of the RIS, which the AP may use to select AP and/or RIS beams for conveying wireless data between the AP and the UE via the RIS.