Geographic Location Service in M2M Systems
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Solution Overview
Problem
Current machine-to-machine (M2M) communication systems lack accurate geographical location information, which is essential for efficient data transmission and mobility management, as they rely on cell-level location identification rather than precise geographical location, limiting the effectiveness of location-based services.
Innovation Solution
Implementing a geographical location information-based system where devices are addressed and identified by their precise geographical location, allowing for content requests and acquisitions based on target geographical areas, enabling more accurate and efficient data transmission and mobility management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cell level location identification is used for device identification, then device identification can be implemented, but the location accuracy is not sufficient for precise geographical location-based services
Solution Approach 1:
The patent changes the location identification parameter from cell-level identifiers to geographical coordinates (latitude, longitude, altitude). This allows precise location-based services while maintaining system operability through standardized coordinate systems and location area definitions.
Solution Approach 2:
The patent introduces a location server as an intermediary component that manages the mapping between device identifiers and geographical location information. This mediator handles the complexity of location management, allowing the core communication system to benefit from precise location data without direct complexity involvement.
2Adaptability or versatility
If additional location server is added to handle geographical location information, then precise location-based services can be provided, but the system complexity increases
Solution Approach 1:
The location server is designed with multi-functionality, handling not only location information management but also location-based service routing, device location tracking, and geographical area management. This consolidates multiple functions into a single component, reducing overall system complexity while enhancing service applicability.
Solution Approach 2:
The system performs preliminary location registration and location area definition actions in advance. Devices register their location information with the location server before providing services, and geographical areas are pre-defined with their boundaries and characteristics. This preliminary action reduces real-time processing complexity during service delivery.
3Measurement precision
If geographical location information is used for device addressing, then location-based services can be accurately provided, but additional signaling is required for mobility management
Solution Approach 1:
The patent merges location reporting with existing mobility management signaling. When devices move or change location areas, they report their new geographical coordinates using the same signaling mechanisms already established for mobility management. This combines location updates with mobility procedures, reducing additional signaling overhead while maintaining accurate location tracking.
Solution Approach 2:
The system maintains continuous location tracking by integrating location reporting into regular mobility management cycles. Instead of separate location update procedures, the location information is continuously updated through the existing mobility signaling framework, ensuring location accuracy without significant additional time or signaling costs.
Data Source
AI summary
The invention provides a solution to accessing for a geographical location information-based service in a server of a machine type communication based communication system, where firstly a server broadcasts or multicasts a content request message, the content request message comprising information on requested content and information on a target geographical location; then the server receives a response message from at least one user equipment, the response message indicating that the at least one user equipment possesses the requested content and the at least one user equipment being located within the target geographical location; and finally the server acquires the requested content from the at least one user equipment.