Aircraft Channel Selection Using Payload Messages Instead of Pings
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Solution Overview
Problem
Existing aircraft communication systems face inefficiencies in selecting transmission channels due to static channel usage preferences and frequent switching, leading to suboptimal transmission quality and increased information traffic.
Innovation Solution
A method for selecting a communication channel based on real-time transmission quality indices, using 'ping' messages to determine eligibility times, and buffering eligible payload messages to reduce probe message traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If probe messages are sent regularly to monitor transmission quality, then channel selection reliability is improved, but information traffic increases
Solution Approach 1:
The patent combines the functions of probe messages and payload messages into a single message type. Payload messages serve dual purposes: they carry actual data while simultaneously performing channel quality monitoring that was previously the exclusive function of separate probe messages. This merging eliminates redundant traffic while maintaining channel selection reliability.
Solution Approach 2:
The patent makes payload messages multi-functional by enabling them to perform both data transmission and channel quality assessment. The same message structure and transmission mechanism are used for both purposes, allowing the system to eliminate dedicated probe messages while preserving monitoring capabilities through the universal payload message.
2Reliability
If channel switching is performed frequently to maintain optimal transmission quality, then transmission quality is improved, but service interruptions increase
Solution Approach 1:
The patent implements preliminary channel quality assessment by continuously monitoring transmission metrics before actual data loss occurs. By evaluating channel conditions in advance using payload message feedback, the system can proactively switch channels before quality degradation impacts service, preventing interruptions rather than reacting to them.
Solution Approach 2:
The patent establishes a feedback mechanism where transmission quality metrics from payload messages are used to dynamically adjust channel selection decisions. The system continuously receives feedback on channel performance and uses this information to make informed switching decisions, balancing quality optimization with service continuity by avoiding unnecessary switches.
3Device complexity
If static channel preference lists are used for channel selection, then device complexity is reduced, but transmission quality optimization is limited
Solution Approach 1:
The patent transitions from static channel preference lists to dynamic channel selection based on real-time transmission quality metrics. The system continuously evaluates actual channel performance and adapts selections accordingly, allowing the channel assignment to change dynamically based on current conditions rather than relying on predetermined static preferences.
Solution Approach 2:
The patent changes the selection parameter from static channel preferences to dynamic transmission quality indices derived from actual message transmissions. By using measurable parameters such as message delivery success and transmission timing from payload messages, the system adapts channel selection to current channel conditions without requiring complex additional monitoring infrastructure.
Data Source
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AI summary
The invention relates to a method for selecting a communication channel, called the usage channel, comprising: - a step of determining, for each channel, one or more items of information representative of a quality of transmission of a message, the message being either a so-called "useful" message received by the embedded system, or a probe message, called a "ping" message, - a step of classifying the channels according to indices representative of the transmission qualities, from said information, - a step of selecting the usage channel as being the channel, having the best transmission quality from said indices, - a step (101) of determining a buffering time for each useful message received, and if this time is non-zero, - a step (102) of transmitting the useful message, called the eligible useful message, instead of a probe message.