Location Server Database Caching for RF Resource Conservation
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Solution Overview
Problem
Conventional location determining and providing techniques in wireless communication networks face inefficiencies, such as high resource consumption and potential communication service disruptions due to frequent location requests, especially when multiple mobile stations are present in the same area, and may not be suitable for situations where radio transmissions are undesirable.
Innovation Solution
Implementing a system that uses sensors to detect mobile stations' presence within enclosing location objects, updates a database with correlation information, and generates location information for mobile stations based on their association with these objects, reducing the need for direct communication with mobile stations and conserving RF resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If location requests are sent directly from application server to mobile stations through base transceiver station, then location information can be obtained for mobile stations, but radio frequency resources within the cell are consumed completely, preventing other communication services from operating
Solution Approach 1:
The patent introduces a location server as an intermediary component between the application server and mobile stations. The location server receives location requests from application servers, determines mobile station locations using database information without direct radio communication with mobile stations, and provides location data to application servers. This intermediary approach eliminates the need for application servers to directly query mobile stations through the radio network, thereby preserving RF resources for actual communication services.
2Measurement precision
If ping messages are sent to mobile stations to determine location, then location information can be obtained, but a large amount of resources are consumed by the location server when mobile stations have relatively static position
Solution Approach 1:
The patent implements preliminary action by having the location server proactively determine and store location information for mobile stations in advance, rather than waiting for location requests to trigger real-time position determination. The location server maintains a database with pre-determined location data for mobile stations, enabling rapid response to location requests without consuming resources for repeated position determination queries.
3Measurement precision
If location determination is performed for multiple mobile stations at the same location, then comprehensive location information is obtained, but communication service disruptions occur due to RF resource exhaustion
Solution Approach 1:
The location server serves as a mediator that handles location determination for multiple mobile stations without requiring direct radio communication with each station. By using database storage and retrieval mechanisms, the location server can efficiently determine locations for numerous mobile stations simultaneously without consuming RF resources, thereby maintaining communication service reliability while providing comprehensive location information.
Data Source
AI summary
A method and a system for providing location information are provided. A location server receives a request for location information for the mobile station. The request includes an identifier for the mobile station. The location server determines whether the mobile station is at an enclosing location object by searching a location server database in response to the request. When the location server determines that the mobile station is at the enclosing location object, the location server obtains the enclosing location object from the location server database independent of a location request being sent to the mobile station, and provides the enclosing location object as the location of the mobile station. A sensor can be used to determine whether the mobile station is at the enclosing location object, and the location server database can be updated based on the sensor information.