PRS Beam Profile Spoofing Detection in Wireless Positioning
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Solution Overview
Problem
Current wireless communication systems face challenges in detecting and mitigating positioning reference signal (PRS) spoofing, which can lead to inaccurate location determination and security breaches, especially in critical applications like emergency vehicle navigation.
Innovation Solution
A method involving the comparison of beam profiles of received PRS signals with a set of legitimate PRS beam profiles to determine legitimacy, where user equipment (UE) or network entities analyze and verify the authenticity of PRS signals, and generate spoof detection reports to mitigate spoofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam profile comparison is performed to detect PRS spoofing, then positioning accuracy and security are improved, but device complexity and computational requirements increase
Solution Approach 1:
The patent stores pre-acquired beam profiles of legitimate PRS signals in a database before spoofing detection is needed. When a PRS signal is received, its beam profile is compared against the stored legitimate profiles. This preliminary action of pre-storing profiles reduces real-time computational complexity while maintaining high positioning accuracy and spoofing detection capability.
2Speed
If beam profile analysis is performed in real-time, then spoofing detection speed is improved, but processing complexity and resource consumption increase
Solution Approach 1:
The patent creates and stores copies of legitimate beam profiles in advance. Instead of performing complex real-time analysis to determine legitimacy, the system simply compares the received signal's beam profile against the pre-stored copies. This copying approach enables fast real-time detection while minimizing processing complexity and resource consumption during actual spoofing detection operations.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may obtain a set of one or more beam profiles, wherein each beam profile in the set of one or more beam profiles comprises the beam profile of a legitimate positioning reference signal (PRS) beam. The UE may determine a beam profile of a received PRS beam. The UE may determine a legitimacy of the received PRS beam based on a comparison of the beam profile of the received PRS beam to the set of one or more beam profiles from legitimate PRS beams.