Platoon Relay Node Selection for Vehicle Communication Reliability
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Solution Overview
Problem
In the Internet of Vehicles, direct device-to-device communication between vehicles in a platoon can be congested or blocked, leading to potential traffic accidents due to poor signal quality, making it difficult for vehicles to send or forward messages effectively.
Innovation Solution
A method where a first platoon member determines a target communications node with better signal quality to relay data to second platoon members, using communication quality tables to identify and select nodes that can maintain reliable data transmission, potentially involving the application server when direct communication fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If direct device-to-device communication is used between platoon members, then communication simplicity is improved, but communication reliability deteriorates due to congestion and blocking
Solution Approach 1:
The patent introduces a relay mechanism where platoon members can forward messages through intermediate nodes (other platoon members or network servers) when direct communication fails. The system identifies alternative communication paths by querying communication quality information, allowing messages to be relayed through trusted intermediaries to ensure delivery while maintaining the simplicity of the overall architecture.
2Reliability
If relay communication through target communications node is implemented, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-establishing communication quality information tables that store communication quality data between platoon members before actual communication occurs. When a platoon member needs to send a message, the system queries these pre-built tables to quickly identify suitable relay nodes without performing complex real-time analysis, thus reducing operational complexity while maintaining reliability.
Solution Approach 2:
The system uses feedback mechanisms where platoon members report their communication quality status and the system adjusts the communication path accordingly. Communication quality information is continuously updated and fed back into the decision-making process, allowing the system to adapt to changing network conditions while following a structured approach that manages complexity.
3Reliability
If communication quality tables are used to track signal quality, then communication reliability is improved, but information storage requirements increase
Solution Approach 1:
The patent applies local quality by maintaining communication quality information at the platoon member level rather than requiring a centralized comprehensive database. Each platoon member stores and manages communication quality data relevant to their own communications, and only shares this information when needed for relay decisions. This distributed approach reduces the total information storage burden while ensuring reliable communication path selection.
Data Source
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AI summary
This application discloses a communications method, apparatus, and system, and belongs to the communications field. The method includes: determining, by a first platoon member, at least one second platoon member, where the first platoon member and the at least one second platoon member belong to a same platoon, and signal quality of a communication link from the first platoon member to each second platoon member is less than a first preset quality threshold; determining, by the first platoon member, a target communications node, where signal quality of a communication link from the target communications node to each second platoon member is greater than or equal to the first preset quality threshold; and sending, by the first platoon member, to-be-sent data to each second platoon member through the target communications node. This application can avoid blocking of communication between platoon members.