Location Database Subset Transfer via Servicing Communication Devices
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Solution Overview
Problem
Conventional location-based services face inefficiencies in transferring large location database information, leading to high storage and processing requirements, bandwidth consumption, and increased load on location servers due to the need for mobile devices to retrieve extensive reference databases, which is particularly problematic for mobile devices needing only a subset of data.
Innovation Solution
A system and method where servicing communication devices, such as cellular base stations and WiMAX base stations, receive and maintain subsets of location reference databases based on determined attributes and parameters like location, processing resources, and mobile device requirements, enabling them to provide customized location data to mobile devices without direct interaction with location servers, optimizing data transfer and reducing server load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If mobile devices retrieve extensive reference databases from location servers, then location data completeness is improved, but bandwidth consumption and server load increase
Solution Approach 1:
The patent segments the location reference database into multiple subsets, where each servicing communication device stores a specific subset relevant to its coverage area. This allows mobile devices to retrieve only the necessary location data from their current serving base station rather than downloading the entire database, thereby reducing bandwidth consumption while maintaining data completeness for local area services.
Solution Approach 2:
The patent implements local quality by having each servicing communication device store and provide location reference data specific to its local coverage area. This ensures that mobile devices receive optimized, location-relevant data from their nearest base station, reducing unnecessary data transfer while maintaining sufficient location information accuracy for local services.
2Measurement precision
If mobile devices retrieve extensive reference databases, then location service accuracy is improved, but storage and processing requirements on mobile devices increase
Solution Approach 1:
The database is segmented into geographically distributed subsets stored at different servicing communication devices. Mobile devices only need to store and process the subset relevant to their current location, significantly reducing storage requirements while maintaining location accuracy through centralized server coordination when needed.
Solution Approach 2:
The patent introduces servicing communication devices as intermediaries between mobile devices and the central location server. These intermediaries cache location reference data locally, allowing mobile devices to obtain accurate location information without directly accessing the full database, thereby reducing mobile device storage and processing burdens.
3Adaptability or versatility
If the entire location reference database is transferred to mobile devices, then location service functionality is improved, but data transfer time and network load increase
Solution Approach 1:
The location reference database is divided into multiple subsets distributed across different servicing communication devices. Mobile devices can quickly retrieve the relevant subset from their current serving base station, dramatically reducing data transfer time while maintaining full location service functionality through coordinated access to different subsets as users move between coverage areas.
Solution Approach 2:
The patent implements preliminary action by pre-loading location reference database subsets into servicing communication devices before users need them. This allows mobile devices to immediately access location data from their serving base station without waiting for large-scale downloads, reducing data transfer time while ensuring complete location service functionality is available.
Data Source
AI summary
A servicing communication device may receive a subset of a location reference database that is maintained by a plurality of location servers, and may provide location related data to a mobile device that is communicatively coupled to the servicing communication device based on the received subset. The servicing communication device may determine capabilities and/or requirements of the mobile device, and may generate the location related data based on that determination. The servicing communication device may determine attributes and/or parameters that may affect determination of the subset of the location reference database. The subset of location reference database may be requested based on the determined attributes and/or parameters. The attributes and/or parameters may comprise a location of the servicing communication device. The servicing communication device may determine its location, directly based on GNSS transmissions and/or indirectly based on assisted GNSS (A-GNSS) data received from the plurality of location servers.