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WO2024102771A3 - Obfuscating a location of user equipment - Google Patents

Obfuscating a location of user equipment Download PDF

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Publication number
WO2024102771A3
WO2024102771A3 PCT/US2023/079008 US2023079008W WO2024102771A3 WO 2024102771 A3 WO2024102771 A3 WO 2024102771A3 US 2023079008 W US2023079008 W US 2023079008W WO 2024102771 A3 WO2024102771 A3 WO 2024102771A3
Authority
WO
WIPO (PCT)
Prior art keywords
data stream
path
weight matrix
length difference
precoding weight
Prior art date
Application number
PCT/US2023/079008
Other languages
French (fr)
Other versions
WO2024102771A2 (en
Inventor
Sai Roshan Ayyalasomayajula
Aditya Arun
Wei Sun
Dinesh BHARADIA
Original Assignee
The Regents Of The University Of California
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Regents Of The University Of California filed Critical The Regents Of The University Of California
Publication of WO2024102771A2 publication Critical patent/WO2024102771A2/en
Publication of WO2024102771A3 publication Critical patent/WO2024102771A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/12—Detection or prevention of fraud

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

In some implementations, a method comprises determining a path length difference from one or more channel measurements of a transmission to user equipment, the transmission comprising at least a direct path beam and a reflected path beam; determining a precoding weight matrix at least in part using the path length difference, wherein the precoding weight matrix adds a delay to a transmitted output beam in a direction from which the direct path beam is received, wherein the delay is equal to or larger than the path length difference; and generating the transmitted output beam at least in part by applying at least a portion of the precoding weight matrix to a data stream, wherein the transmitted output beam comprises a delayed direct path signal portion of the data stream and an unmodified multipath signal portion of the data stream. Related systems, methods, and articles of manufacture are also disclosed.
PCT/US2023/079008 2022-11-08 2023-11-07 Obfuscating a location of user equipment WO2024102771A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263382787P 2022-11-08 2022-11-08
US63/382,787 2022-11-08

Publications (2)

Publication Number Publication Date
WO2024102771A2 WO2024102771A2 (en) 2024-05-16
WO2024102771A3 true WO2024102771A3 (en) 2024-06-13

Family

ID=91033557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/079008 WO2024102771A2 (en) 2022-11-08 2023-11-07 Obfuscating a location of user equipment

Country Status (1)

Country Link
WO (1) WO2024102771A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210243595A1 (en) * 2020-02-05 2021-08-05 Lookout Inc. Use Of Geolocation To Improve Security While Protecting Privacy
US20220196787A1 (en) * 2019-05-01 2022-06-23 The Regents Of The University Of California Wireless device localization
US20220225085A1 (en) * 2021-01-14 2022-07-14 Advanced Enterprise Solutions, Llc System and method for obfuscating location of a mobile device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220196787A1 (en) * 2019-05-01 2022-06-23 The Regents Of The University Of California Wireless device localization
US20210243595A1 (en) * 2020-02-05 2021-08-05 Lookout Inc. Use Of Geolocation To Improve Security While Protecting Privacy
US20220225085A1 (en) * 2021-01-14 2022-07-14 Advanced Enterprise Solutions, Llc System and method for obfuscating location of a mobile device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CIGNO RENATO LO; GRINGOLI FRANCESCO; COMINELLI MARCO; GHIRO LORENZO: "Integrating CSI Sensing in Wireless Networks: Challenges to Privacy and Countermeasures", IEEE NETWORK, vol. 36, no. 4, 1 July 2022 (2022-07-01), US , pages 174 - 180, XP011923581, ISSN: 0890-8044, DOI: 10.1109/MNET.010.2100740 *
COMINELLI MARCO; GRINGOLI FRANCESCO; CIGNO RENATO LO: "Non Intrusive Wi-Pi CSI Obfuscation Against Active Localization Attacks", 2021 16TH ANNUAL CONFERENCE ON WIRELESS ON-DEMAND NETWORK SYSTEMS AND SERVICES CONFERENCE (WONS), IFIP, 9 March 2021 (2021-03-09), pages 1 - 8, XP033910327, DOI: 10.23919/WONS51326.2021.9415586 *

Also Published As

Publication number Publication date
WO2024102771A2 (en) 2024-05-16

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