Multi-Carrier Communication Control Using Forward Quality Sensing
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Solution Overview
Problem
Existing communication systems for moving bodies using multiple communication carriers struggle with low accuracy in predicting communication quality, leading to the potential selection of low-quality carriers.
Innovation Solution
Acquire actual communication quality information in real time from communication devices in the direction of movement and determine priority based on this actual quality to select a high-quality carrier for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication quality is predicted based on past communication record, then communication carrier can be selected in advance, but accuracy of predicted value is low leading to potential selection of low-quality carriers
Solution Approach 1:
The system performs preliminary acquisition of actual communication quality information from communication devices in the movement direction before the moving body arrives at that area. This advance measurement allows the system to select communication carriers based on real measured values rather than inaccurate predictions, resolving the contradiction between advance selection capability and prediction accuracy.
Solution Approach 2:
The invention introduces communication devices positioned in the movement direction as intermediary measurement points. These intermediary devices measure actual communication quality in advance, providing accurate data to the moving body without requiring the moving body itself to perform measurements. This mediator approach enables high-accuracy carrier selection while maintaining advance preparation.
2Reliability
If multiple communication carriers are available for selection, then communication reliability can be improved, but complexity of determining which carrier to use increases
Solution Approach 1:
Communication devices in the movement direction autonomously measure and report their own actual communication quality information for multiple carriers. This self-service measurement approach simplifies the overall system complexity because the moving body only needs to collect and compare the reported data, rather than implementing complex measurement and evaluation systems itself.
Solution Approach 2:
The invention replaces complex mechanical measurement systems with information-based substitution. Instead of the moving body physically measuring communication quality through complex hardware, the system substitutes this with information collection from pre-measured data provided by communication devices in the movement direction, significantly reducing system complexity.
Data Source
AI summary
A communication system performs a communication between a moving body capable of using multiple communication carriers and an external device. The communication system acquires actual communication quality information that is acquired in real time from a communication device group present in a first area located in a direction of movement of the moving body and indicates an actual measured value of a communication quality of each of the multiple communication carriers in the first area. The communication system determines priority of the multiple communication carriers in the first area based on the actual communication quality information regarding the first area. The communication system determines, based on the priority, at least one communication carrier to be used for the communication between the moving body and the external device in the first area.