Geolocation Database Updating via Access Network Position Checks
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Solution Overview
Problem
Existing geolocation systems face challenges in maintaining an up-to-date database, particularly in low-speed and low-power networks like IoT or M2M, where updating the database with accurate geographical positions of transmitting devices is inefficient and costly, and existing solutions are not effective when only a small number of identifiers are emitted.
Innovation Solution
A method utilizing a wireless communication system where an access network independently determines the geographical position of a terminal, allowing for updating the geolocation server's database by checking and updating the position information of transmitting devices based on consistency with existing data or adding new devices without relying on the geolocation server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the database is updated using traditional geolocation server methods, then the position information can be updated, but the cost and complexity increase significantly
Solution Approach 1:
The access network performs autonomous position determination of terminals without requiring geolocation server intervention. The access network uses its own network measurements (signal strength, time of arrival, angle of arrival) to calculate terminal positions and directly updates the database, making the system self-sufficient for position updates.
Solution Approach 2:
The position determination function is extracted from the geolocation server and relocated to the access network. This separates the position calculation responsibility from the central geolocation server, allowing the access network to independently determine positions and update the database without involving the geolocation server in every update operation.
2Measurement precision
If calibration terminals with GPS are used for database updates, then accurate position information can be obtained, but the cost becomes particularly expensive and frequent updates are not allowed
Solution Approach 1:
The access network autonomously determines terminal positions using its own measurement capabilities (signal strength, time of arrival, angle of arrival measurements) without requiring external GPS calibration terminals. This eliminates the need for expensive calibration equipment while enabling continuous position tracking and frequent database updates.
Solution Approach 2:
The access network performs multiple functions: it provides normal network access services and simultaneously performs position determination and database updates. This multi-functionality eliminates the need for separate calibration terminals and enables continuous updates without additional cost or complexity.
3Use of energy by moving object
If only a small number of identifiers are emitted in query messages, then low-power network communication is maintained, but the existing consistency check solution does not work
Solution Approach 1:
The access network autonomously determines terminal positions and performs consistency validation using its own measurements, without requiring multiple identifier queries from terminals. This self-service approach maintains low power consumption while ensuring position consistency through the access network's independent verification capabilities.
Solution Approach 2:
The access network receives position determination results and feeds them back to update the database. The system continuously monitors position consistency by comparing new measurements with existing database entries, automatically correcting inconsistencies without requiring multiple terminal queries, thus maintaining both low power consumption and high reliability.
Data Source
AI summary
Disclosed is a method for updating a database of a geolocation server using a wireless communication system. The database includes a table associating an identifier of a transmitting device with at least one piece of information on its geographical position. The communication system includes an access network and a terminal communicating with the access network and with the transmitting devices according to two distinct protocols. The terminal receives a message emitted by a transmitting device and including an identifier of the transmitting device. The terminal emits a message with this identifier to the access network. The access network determines a piece of information on the geographical position of the terminal. A consistency check is performed between the piece of position information of the terminal determined by the access network and the piece of position information present in the table. The table is updated based on the consistency check.