Systems and methods for ranging protection through feedback of at least one channel metric

By using a channel characteristic feedback mechanism and bidirectional channel estimation and measurement, the similarity of channel measurements is compared, which solves the problem of vulnerability of modem ranging in wireless communication systems to attacks and improves the security and defense capabilities of the system.

CN114640565BActive Publication Date: 2026-07-10SAMSUNG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202111534735.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-11-16
Filing Date
2021-12-15
Publication Date
2026-07-10
Estimated Expiration
2041-12-15

AI Technical Summary

Technical Problem

In wireless communication systems, ranging operations between modems are vulnerable to unauthorized access and attacks, leading to security issues related to resource access.

Method used

By using a feedback mechanism based on channel characteristics, bidirectional channel estimation and measurement between the first and second modems are employed. The estimated channel measurement is compared with a similarity standard, and resource access requests that do not meet the standard are rejected.

Benefits of technology

It improves the security of ranging operations between modems, prevents unauthorized resource access, and enhances the system's defense capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

A system and method for protecting ranging by feedback of at least one channel metric. The method can include receiving, by a first modem, a first training signal from a second modem, generating, by the first modem, a first estimate of a channel metric based on the first training signal, receiving, by the first modem, a second estimate of the channel metric from the second modem, determining, by the first modem, that the first estimate of the channel metric and the second estimate of the channel metric do not meet a similarity criterion, and denying, by the first modem, access to a resource.
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Citation Information

Patent Citations

  • Prevention of Cloning Attacks in a DOCSIS Network

    US20070276943A1

  • Wireless System with Secure Range Determination

    US20170303127A1