Transit Point Location Verification via Radio Signal Sampling
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Solution Overview
Problem
Existing methods for verifying the location of a transit point in a network environment lack independent verification, especially in untrusted packet networks, where interference from transit providers can compromise the accuracy and authenticity of location determination, and existing mechanisms may not provide sufficient geographic resolution or reliability.
Innovation Solution
A communication system that receives radio signals from multiple independent radio sources, generates a sample of these signals, and compares it with an expected sample to determine the location of the transit point, using packet messages to transmit and verify the location independently of the packet network, ensuring geographic location verification without relying on the packet network's trustworthiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing methods for verifying transit point location are used in untrusted packet networks, then verification can be performed, but the accuracy and authenticity of location determination deteriorates due to interference from transit providers
Solution Approach 1:
The patent introduces radio signals from external radio sources as an intermediary verification mechanism. Instead of relying solely on packet network data that can be manipulated by transit providers, the system uses radio signal characteristics (time of arrival, signal strength, angle of arrival) from independent external sources to verify the actual geographic location of transit points, thereby resolving the contradiction between verification reliability and location accuracy in untrusted networks
Solution Approach 2:
The patent replaces the purely electronic/packet-based verification mechanism with a hybrid approach that incorporates radio wave propagation characteristics. By substituting packet network trust assumptions with physical radio signal measurements that are difficult to falsify, the system improves both reliability and accuracy of location determination in untrusted environments
2Measurement precision
If independent verification using radio signals is implemented, then location accuracy and authenticity improve, but device complexity increases
Solution Approach 1:
The patent makes existing transit point infrastructure multi-functional by enabling them to perform both their original packet routing function and the additional function of radio signal reception and verification. This universal approach allows the same devices to serve multiple purposes, improving location accuracy without proportionally increasing overall system complexity
Solution Approach 2:
The verification system is designed to be self-organizing and autonomous, where transit points automatically receive radio signals, extract location information, and verify their positions without requiring complex centralized management. The system uses readily available external radio sources and automatically processes the verification, reducing the operational complexity despite the enhanced functionality
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for independent and reliable verification of a transit point's location, providing geographic resolution at a town or city level, reducing implementation costs, and preventing falsification of network paths by ensuring consistency with expected radio signal samples, even in scenarios where transit providers may attempt to deceive.
Implementation Method 1
receiving, at a transit point in a packet network, at least two radio signals from corresponding different radio sources
Data Source
AI summary
An example method for independently verifying a transit point in a network environment is provided and includes receiving, at a transit point in a packet network, at least two radio signals from corresponding different radio sources, receiving, at the transit point, a sampling request in an packet message, and transmitting in another packet message a sample of the at least two radio signals such that by comparing the sample with an expected sample, a location of the transit point is determined. The expected sample can comprise another sample of the at least two radio signals that would have been received by the transit point at an expected location at a time of receipt of the sampling request, and if the expected sample matches the sample, the transit point is determined to be at the expected location.