Base Station Correction Values for High-Precision Mobile Positioning
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Solution Overview
Problem
Existing cellular network-based location services, such as Cell ID and OTDOA, provide location accuracy only up to meters, which is insufficient for applications requiring submeter or centimeter precision, such as drone navigation and vehicle self-driving.
Innovation Solution
A system that utilizes base stations in a cellular network to provide high-precision location data by distributing correction values to user devices, allowing them to adjust their location data for enhanced accuracy, using a combination of GPS and stored high-precision location information at the base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing cellular network-based location services (Cell ID, OTDOA) are used, then the system is simple and widely compatible, but the location accuracy is limited to meter-level precision
Solution Approach 1:
The patent introduces base stations as intermediary components that receive high-precision location data from external sources (GPS, GNSS), process it into correction values, and distribute these corrections to user devices. This mediator architecture enables high-precision location services without requiring complex hardware modifications in user devices, resolving the contradiction between improved accuracy and system complexity.
Solution Approach 2:
The patent replaces traditional mechanical/cellular-based location methods (Cell ID, OTDOA) with a correction-based system that uses high-precision satellite navigation data. By substituting the location determination mechanism with a correction value distribution system, the patent achieves centimeter-level accuracy while maintaining compatibility with existing cellular infrastructure.
2Measurement precision
If high-precision location data is provided to all user devices, then location accuracy improves to submeter or centimeter level, but network bandwidth and energy consumption increase
Solution Approach 1:
The patent extracts only the essential correction values from high-precision location data and transmits only these condensed corrections to user devices, rather than transmitting complete high-precision location datasets. This extraction approach significantly reduces data transmission volume, lowering both network bandwidth consumption and device energy usage while maintaining high-precision location accuracy.
3Adaptability or versatility
If correction values are distributed through the cellular network, then high-precision location services become widely accessible, but security risks increase due to unauthorized access potential
Solution Approach 1:
The patent implements preliminary security measures by encrypting correction values before distribution through the cellular network and establishing authentication protocols that verify user device legitimacy before granting access. This preliminary anti-action approach prevents unauthorized access and security breaches while maintaining wide service accessibility, as security checks are performed in advance rather than reacting to threats.
Data Source
AI summary
Techniques are described herein for enabling the generation of high-precision location data on a user device using a cellular network infrastructure. In embodiments, such techniques may comprise maintaining, by a base station operating within a cellular network, high-precision location information representing geographical coordinates associated with the base station. The techniques may further involve obtaining, by the base station, current location information associated with the base station and determining a current correction value that represents a difference between the high-precision location information and the current location information. The techniques may further involve determining one or more user devices in communication with the base station, and providing the current correction value to the one or more user devices.