Mobile Terminal Infrastructure Selection via Trajectory Prediction
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Solution Overview
Problem
Mobile terminals face challenges in selecting the best radiocommunication infrastructure for continuous coverage and quality of experience, especially when in motion, leading to frequent network switching and reduced autonomy due to energy-intensive discovery processes and insufficient connection establishment times.
Innovation Solution
A system and method that considers the user's trajectory and specific application requirements by using a location module, database, and software modules to select the most suitable infrastructure based on quality of experience metrics, including future positions and application-specific mapping tables, to ensure continuous and high-quality connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile terminal performs periodic discovery processes to establish a list of available infrastructures at each new location, then the terminal can maintain connectivity, but frequent network switching occurs which deteriorates quality of service
Solution Approach 1:
The system performs preliminary actions by predicting future positions along the trajectory and pre-identifying suitable infrastructures before the terminal actually reaches those locations. This allows the terminal to switch networks proactively rather than reactively, maintaining connectivity while avoiding frequent switching.
Solution Approach 2:
The system dynamically adapts the infrastructure selection based on the terminal's movement state, trajectory, and speed. By considering the terminal's dynamic position and predicted path, the system optimizes network selection to match the terminal's motion characteristics, reducing unnecessary switches.
2Reliability
If the mobile terminal executes discovery and selection processes at each new position, then connectivity is maintained, but battery life is significantly reduced due to energy-intensive operations
Solution Approach 1:
The system performs infrastructure identification and selection in advance based on predicted trajectory positions, rather than executing energy-intensive discovery processes at every location. This preliminary action reduces the frequency of battery-consuming operations while maintaining connectivity.
Solution Approach 2:
The system uses the terminal's own motion data and trajectory information to autonomously predict future positions and pre-select infrastructures, eliminating the need for continuous external discovery processes and reducing energy consumption.
3Speed
If the mobile terminal moves quickly through coverage areas, then mobility is maintained, but insufficient time is available to establish connections before moving to the next location
Solution Approach 1:
The system identifies and prepares infrastructure selections for future positions along the trajectory before the terminal reaches them. This allows connection establishment to be initiated in advance, ensuring sufficient time for setup even when the terminal moves at high speed through coverage areas.
4Ease of operation
If the mobile terminal selects infrastructure based on current location only, then simple selection is achieved, but continuous coverage along the trajectory is not ensured
Solution Approach 1:
The system extends the selection process by identifying infrastructures at multiple future positions along the predicted trajectory, not just the current location. This preliminary identification of future infrastructure options ensures continuous coverage while maintaining selection simplicity through automated processing.
Solution Approach 2:
The system transitions from considering only the current spatial position to incorporating the temporal dimension by predicting future positions along the trajectory. This multi-dimensional approach ensures continuous coverage by selecting infrastructures that will be available throughout the terminal's movement path.
Data Source
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AI summary
This system (30) comprises: - a database (31) comprising maps (Cik), each map being associated with an infrastructure from a plurality of available infrastructures and giving, at each point of a geographical area, a local value of a quantity relating to a quality of experience associated with the execution of an application accessing a remote resource via the infrastructure; a localisation means (20) generating a current position of the mobile terminal (10); a means (40) for selecting a path; a correlation means (50) capable of determining a correlation coefficient, from the current position, the selected path, and each map; and a selection means capable of selecting an infrastructure from the plurality of infrastructures, based on the correlation coefficients.