Telecommunication Positioning Test Device for Accuracy Checks
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Solution Overview
Problem
There is a need for a cost-effective and simple method to evaluate the reliability of location and timing information derived from telecommunication standard signals, particularly after deployment or maintenance phases.
Innovation Solution
A method involving a test device that receives radio signals from at least three different transmitters according to a telecommunication standard, determines an assessed position based on these signals, and compares it to a position determined independently of the radio signals, allowing for evaluation of the precision and reliability of the assessed position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If telecommunication standard signals are used to transmit location and timing information, then the backup system capability is improved, but the reliability of the location and timing information cannot be verified
Solution Approach 1:
The patent implements a feedback mechanism by comparing the assessed position (derived from telecommunication signals) with the actual position (determined by GNSS or other independent means). This comparison provides feedback on the accuracy and reliability of the telecommunication-based positioning, allowing the system to evaluate and verify the quality of location and timing information from the backup system.
2Measurement precision
If a complex testing system is deployed to evaluate signal reliability, then the measurement precision is improved, but the device complexity and cost increase
Solution Approach 1:
The patent employs a test device that can perform multiple functions: receiving telecommunication standard signals for position assessment, determining actual position through independent means (GNSS, inertial sensors), comparing the two position sources, and evaluating signal quality. This multi-functional approach allows a single device to conduct comprehensive reliability testing without requiring separate specialized equipment for each measurement task, thereby reducing overall system complexity.
3Area of stationary object
If radio signals from multiple transmitters are used for position determination, then the positioning coverage is improved, but the difficulty of detecting and measuring position accuracy increases
Solution Approach 1:
The patent uses an intermediary reference system (GNSS or other independent positioning means) to mediate the accuracy verification process. Instead of directly measuring the accuracy of telecommunication-based positioning, the system compares it against the intermediary reference, which provides a known accurate position. This intermediary approach simplifies the measurement process by transforming a complex direct accuracy measurement into a straightforward comparison task.
Data Source
AI summary
The present disclosure generally relates to a method for testing a telecommunication standard-based positioning, navigation, and timing system and a test device. The system includes the test device. Radio signals from at least three different transmitters are received by the test device. Each transmitter transmits a radio signal according to the telecommunication standard. An assessed position of the test device is determined based on the radio signals received by the test device. The position of the mobile device is determined by the test device additionally to the assessed position. The assessed position is compared with the determined position.