Patent · US Active

Communication via multiple reconfigurable intelligent surfaces

US11956059B2 · kind B2 · utility

2Cited by

0References

20Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Stefan Meyer · Langensendelbach, DE
Jan Ellenbeck · Munich, DE
Bertram Gunzelmann · Königsbrunn, DE

Key dates

Filing date	Sep 14, 2022
Grant date	Apr 9, 2024
Priority date	—
Expiry date	Sep 14, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/15528
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A communication system may include an access point (AP), a user equipment (UE), and a communication path between the AP and the UE having a series of reconfigurable intelligent surfaces (RIS's). Each RIS may have a first beam pointing to a previous node and a second beam pointing to a next node in the communication path. Beams of routing RIS's and a beam from an end user RIS towards a last routing RIS may be set during calibration. The UE may perform beam discovery with the end user RIS. The UE and the AP may convey wireless data via reflections off each of the RIS's in the communication path. The beam of the end user RIS may be updated to track the UE device while the other the beams remain fixed. The beams may be calibrated using retroreflection and beam variation for each pair of RIS's up the communication path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.