Wireless Transmitter Position Integrity Checking
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Solution Overview
Problem
Inaccurate reporting of wireless transmitter positions can lead to errors in mobile station positioning, due to human or machine errors, or deliberate misreporting, affecting the integrity and reliability of satellite and cellular communication systems.
Innovation Solution
A method to assess the integrity of reported wireless transmitter positions by comparing them against mobile station position information and signal measurement data, using uncertainty values to correct for errors, and refining these values based on multiple measurements across different locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless transmitter positions are reported based on human or machine input, then the positioning system can be established quickly, but errors and deliberate misreporting can occur leading to inaccurate mobile station positioning
Solution Approach 1:
The system performs preliminary integrity checking of transmitter position information before using it for mobile station positioning. The location server validates reported positions against multiple criteria including consistency with other transmitter positions, signal propagation characteristics, and stored reference data, preventing erroneous positions from compromising the positioning system.
Solution Approach 2:
The system implements feedback mechanisms where the location server continuously monitors the consistency of transmitter position reports with actual signal measurements and positioning results. When discrepancies are detected, the system can request re-reporting of position information or flag the transmitter for further verification, creating a closed-loop validation system.
2Measurement precision
If transmitter position information is validated through multiple measurements and cross-checking, then positioning accuracy is improved, but the complexity of the positioning system increases
Solution Approach 1:
The location server performs multiple functions within a single system architecture: it manages transmitter position information, performs integrity checking, calculates mobile station positions, and validates results. This multi-functionality approach consolidates what could be separate complex systems into a unified platform, managing complexity through functional integration rather than proliferation of separate components.
Solution Approach 2:
The location server acts as an intermediary between transmitters and mobile stations, centralizing the validation and processing functions. Rather than having each mobile station perform complex validation independently or having transmitters directly communicate position data without verification, the location server mediates all position information flow, performing standardized checks and calculations that simplify the overall system architecture.
Data Source
AI summary
The subject matter disclosed herein relates to determining whether a reported position of a wireless transmitter is sufficiently accurate in accordance with an accuracy metric based at least in part on a calculated range between an estimated position of a mobile station and the reported position and also based at least in part on one or more measurements taken from one or more signals transmitted by the wireless transmitter.