Communication Rate Control for Mobile Object Handover Stability
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Solution Overview
Problem
Existing communication systems in vehicles face challenges in maintaining communication quality during handovers and frequency band changes, leading to potential communication shutdowns and decreased media quality due to unpredictable communication throughput and environmental changes.
Innovation Solution
An information processing apparatus that measures and predicts communication throughput, controls communication rates based on past data, and switches to stored communication environment information during handovers or frequency changes, considering band, noise, signal strength, moving speed, and location information to ensure stable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication rate is increased to improve media quality, then media quality is improved, but communication shutdown risk increases during handover
Solution Approach 1:
The system performs preliminary actions by storing communication environment information (including communication rates, throughput, and environmental parameters) before handover occurs. When handover is detected, the system retrieves pre-stored matching information instead of relying on real-time measurement, preventing communication shutdown and maintaining media quality during the transition.
2Measurement precision
If real-time throughput measurement is used to control communication rate, then responsiveness is improved, but accuracy deteriorates during handover due to environmental changes
Solution Approach 1:
The system creates a copy of communication environment information (including throughput, band, noise level, signal strength, moving speed, and location) at different environmental states and stores it in advance. During handover, instead of measuring real-time throughput which may be inaccurate, the system retrieves the copied pre-stored information that matches the current environmental parameters, ensuring both accuracy and responsiveness.
3Loss of time
If communication rate is controlled based on predicted future throughput, then forward planning is improved, but accuracy worsens due to unpredictable handover events
Solution Approach 1:
The system performs preliminary action by storing communication environment information at multiple time points and environmental states before handover occurs. This allows the system to retrieve pre-measured throughput data that accurately reflects actual performance, eliminating the need for inaccurate predictive modeling while maintaining forward planning capability through pre-computed information.
Data Source
AI summary
An information processing apparatus comprises a communication unit configured to communicate with an external device through a mobile communication network, and comprises: a throughput measuring unit; a throughput predicting unit configured to predict a future communication throughput; a communication rate controller; a band information acquiring unit; a communication environment information storage unit by associating; and a detection unit configured to detect at least one of a handover execution and a communication band switching, wherein if the detection unit has detected at least one of a handover execution and a communication band switching, the communication rate controller switches from controlling the communication rate based on a future communication throughput predicted by the throughput predicting unit to controlling the communication rate based on band information acquired by the communication environment information storage unit and the band information acquiring unit.