Repeater Reporting Signal for Triangulation Accuracy
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Solution Overview
Problem
The presence of repeaters in wireless communication networks introduces additional time delay, which significantly impacts the accuracy of location determination using triangulation-based positioning systems, making it difficult to accurately locate users in such networks.
Innovation Solution
A method and system that detect predefined characteristics in communications passing through repeaters and output a reporting signal to account for the repeater's presence, allowing positioning systems to adjust triangulation calculations and improve location accuracy by using the repeater's attributes instead of those of the associated BTS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If repeaters are deployed to extend coverage and amplify signals in underserved areas, then network coverage and signal strength are improved, but location determination accuracy deteriorates due to additional time delay
Solution Approach 1:
The patent introduces a positioning system as an intermediary component that mediates between the triangulation process and the repeater delay issue. This positioning system receives triangulation data and automatically adjusts calculations by subtracting the known repeater delay value, thereby eliminating the harmful effect of the repeater on location accuracy while preserving the coverage extension benefit
Solution Approach 2:
The patent changes the time delay parameter in the triangulation calculation by introducing a correction value. The repeater delay is measured and stored as a specific parameter, then this parameter is used to adjust the overall time delay measurement in the triangulation formula, transforming the erroneous delay measurement into an accurate location calculation
2Adaptability or versatility
If standard triangulation methods are used for location determination, then positioning can be performed using existing infrastructure, but location accuracy deteriorates when repeaters are present in the communication path
Solution Approach 1:
The patent makes the triangulation calculation dynamic by introducing a conditional adjustment based on repeater presence. The system dynamically modifies the time delay parameter in the triangulation formula based on whether a repeater is detected in the communication path, allowing the same positioning infrastructure to adapt to different network conditions and maintain accuracy
3Ease of operation
If repeater delay is not accounted for in triangulation calculations, then positioning system operation is simple, but location accuracy deteriorates significantly
Solution Approach 1:
The patent performs preliminary measurement and storage of the repeater delay value before the actual triangulation calculation. The delay is measured once during repeater operation and stored as a known parameter, so that during location determination, only a simple subtraction operation is needed rather than complex real-time analysis, maintaining operational simplicity while improving accuracy
Data Source
AI summary
A method and system for detecting, at a repeater, that a communication passing between a wireless communication device and radio access network infrastructure via the wireless repeater has a predefined characteristic and responsively outputting a reporting signal is disclosed. The reporting signal may be sent to a database which is accessible to a positioning system. The reporting signal may contain information regarding attributes of the repeater. Using the attributes of the repeater, the positioning system may be able to perform more accurate triangulation when locating the wireless communication device.