RF Transmitter Location Codes for XR Spoofing Prevention
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Solution Overview
Problem
Current location verification methods in extended reality (XR) environments are inadequate in preventing malicious data access and location spoofing, as they rely on GPS and cell tower triangulation which are inaccurate and easily spoofed, failing to ensure that user devices access shared resources from the correct location.
Innovation Solution
A network-based location verification service that uses radio frequency (RF) transmitters to distribute location codes to user devices, ensuring only authenticated devices within a specific location area can access shared resources, leveraging 5G technologies and small cells for precise location verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS and cell tower triangulation are used for location verification, then the system is simple to implement, but the location accuracy is poor and easily spoofed
Solution Approach 1:
The patent introduces RF transmitters as intermediary devices that broadcast location codes. These transmitters act as mediators between the verification system and user devices, providing a more accurate location verification mechanism without requiring complex changes to the overall system architecture. The transmitters are deployed in the physical environment and automatically broadcast location information to nearby devices.
Solution Approach 2:
User devices automatically receive and verify location codes from RF transmitters without requiring manual intervention. The verification process is self-service in nature, where the device independently obtains location verification by listening to RF broadcasts and presenting the location code to the verification service, eliminating the need for complex user-facing configuration.
2Reliability
If RF transmitters are deployed for location verification, then location security is improved, but the infrastructure complexity increases
Solution Approach 1:
The RF transmitters serve multiple functions: they provide location verification by broadcasting location codes, and they can also serve as part of the broader 5G/small cell infrastructure for general wireless communication. This multi-functionality reduces the need for dedicated verification infrastructure, as existing wireless base stations can be leveraged for both communication and location verification purposes.
Solution Approach 2:
The system changes the verification parameter from relying on device-reported GPS coordinates to verifying against location codes broadcast by trusted RF transmitters. This parameter change fundamentally improves reliability by moving from a trust-based model (trusting device-reported location) to a verification-based model (verifying against known transmitter locations).
3Reliability
If location code verification is implemented, then access security to shared resources is improved, but the processing time increases
Solution Approach 1:
User devices continuously receive and cache location codes from RF transmitters in advance, before verification is needed. This preliminary action ensures that when access verification is required, the device already has the location code readily available, eliminating the need for real-time RF listening and reducing verification processing time.
Solution Approach 2:
The patent replaces the mechanical/GPS-based location determination system with an RF signal-based verification system. By substituting the location verification mechanism from GPS triangulation (which requires complex mathematical calculations) to RF code matching (which requires simple comparison), the system achieves both improved security and reduced processing time.
Data Source
AI summary
A method for location verification service is implemented by a computing system. The method includes receiving a first request from a user device to access or modify a shared resource associated with a location area, sending a second request to transmitters near the location area to transmit a location code for the location area to the user device, receive the location code from the user device, verifying based on the location code that the user device is authorized to access or modify the shared resource, and processing the first request from the user device to access or modify the shared resource, in response to verification that the user device is authorized.