MEASUREMENT OF SOUNDING REFERENCE SIGNAL REFLECTIONS OFF OF RECONFIGURABLE INTELLIGENT SURFACES

Title:

MEASUREMENT OF SOUNDING REFERENCE SIGNAL REFLECTIONS OFF OF RECONFIGURABLE INTELLIGENT SURFACES

Document Type and Number:

WIPO Patent Application WO/2022/183394

Kind Code:

A1

Abstract:

Disclosed are techniques for communication. In an aspect, a wireless node (e.g., UE or BS) measures a first TOA of a first SRS-P from a UE, a second TOA of a reflection of a second SRS-P from the UE off of a first RIS, and a third TOA of a reflection of a third SRS-P from the UE off of a second RIS. The UE transmits, to a position estimation entity, measurement information based on the first, second and third TOAs. The position estimation entity determines a positioning estimate of the UE based at least in part on the measurement information.

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Inventors:

DUAN WEIMIN (US)
XU HUILIN (US)
REN YUWEI (US)

Application Number:

PCT/CN2021/078831

Publication Date:

September 09, 2022

Filing Date:

March 03, 2021

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Assignee:

QUALCOMM INC (US)
DUAN WEIMIN (US)
XU HUILIN (US)
REN YUWEI (CN)

International Classes:

G01S5/02; H04W64/00

Foreign References:

CN112346009A	2021-02-09
CN111866726A	2020-10-30
CN111983560A	2020-11-24
US20170082729A1	2017-03-23

Other References:

ZHANG JINGWEN; ZHENG ZHONG; FEI ZESONG; BAO XUYAN: "Positioning with Dual Reconfigurable Intelligent Surfaces in Millimeter-Wave MIMO Systems", 2020 IEEE/CIC INTERNATIONAL CONFERENCE ON COMMUNICATIONS IN CHINA (ICCC), IEEE, 9 August 2020 (2020-08-09), pages 800 - 805, XP033853278, DOI: 10.1109/ICCC49849.2020.9238887
WYMEERSCH HENK; HE JIGUANG; DENIS BENOIT; CLEMENTE ANTONIO; JUNTTI MARKKU: "Radio Localization and Mapping With Reconfigurable Intelligent Surfaces: Challenges, Opportunities, and Research Directions", IEEE VEHICULAR TECHNOLOGY MAGAZINE, IEEE,, US, vol. 15, no. 4, 7 October 2020 (2020-10-07), US , pages 52 - 61, XP011821427, ISSN: 1556-6072, DOI: 10.1109/MVT.2020.3023682

Attorney, Agent or Firm:

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)

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