Location Verification via Peer-to-Peer Proximity Evaluation
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Solution Overview
Problem
Existing location verification methods are vulnerable to spoofing, especially in scenarios where mobile devices voluntarily report their locations, as they can be manipulated to provide inaccurate or misleading information, which can be difficult to detect without expensive wireless carrier equipment.
Innovation Solution
A location verifier system that utilizes a Proximity Evaluation System (PES) to query a list of mobile devices within a predefined proximity of a target device through peer-to-peer communications, comparing the target device's reported location with detected devices to verify its authenticity and generate a confidence value based on the presence and association of nearby devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mobile devices voluntarily report their locations using standard localization methods (GPS, cellular triangulation), then location information can be obtained easily and at low cost, but the location data becomes vulnerable to spoofing and manipulation
Solution Approach 1:
The patent introduces an intermediary verification system that uses peer mobile devices as mediators to validate the location of a target device. Instead of directly trusting the target device's self-reported location, the system queries nearby peer devices to confirm the target device's presence through peer-to-peer signal detection. This intermediary verification layer resolves the contradiction by maintaining ease of data collection while adding reliability through community-based validation.
2Reliability
If expensive wireless carrier equipment is used for location verification, then location spoofing can be detected with high reliability, but the system becomes costly and complex
Solution Approach 1:
The patent implements a self-service verification mechanism where peer mobile devices themselves perform the verification function by detecting and reporting the presence of nearby devices. Instead of relying on expensive carrier infrastructure, the system leverages the existing peer-to-peer communication capabilities of mobile devices to互相 verify locations. This approach maintains high reliability through multiple independent verification sources while avoiding the complexity and cost of specialized carrier equipment.
Solution Approach 2:
The system makes mobile devices multi-functional by enabling them to serve both as location subjects (devices whose location is being verified) and as verification agents (devices that perform the verification). The same peer-to-peer communication hardware used for normal device interaction is also used for location verification, eliminating the need for separate expensive verification infrastructure and reducing overall system complexity.
3Ease of manufacture
If peer-to-peer communication methods are used for location verification, then expensive carrier equipment is eliminated, but the verification process requires querying multiple devices which increases system complexity
Solution Approach 1:
The patent segments the verification process into distinct functional modules: a proximity evaluation system that manages the verification logic, individual device interrogators that query specific peer devices, and a confidence scoring system that aggregates results. This segmentation allows each component to be independently optimized and reused, reducing overall system complexity despite the multi-device verification process. The modular architecture makes the system easier to implement and maintain while keeping costs low by using standard mobile device capabilities.
Data Source
AI summary
A location verifier can be configured to receive a location report of a target mobile device, wherein the location report includes data characterizing a location for the target mobile device. The location verifier can also be configured to receive a list of mobile devices that are within a predefined proximity of the target mobile device. The location verifier can further be configured to interrogate each mobile device in the list of mobile devices for a list of detected devices. Each device in the list of detected devices can be detected through peer-to-peer communications.