Relay Device Selection for Reliable Multi-Method V2X Links

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Solution Overview

Problem

Existing vehicle-to-Everything (V2X) communication systems face challenges with insufficient wireless and arithmetic resources, leading to inadequate communication quality and reliability, especially when vehicles attempt to connect through devices other than cellular communication networks, resulting in inefficient and unreliable data transmission.

Innovation Solution

A communication device that receives information about communication conditions in a different method within a geographical range using a first method, allowing it to select a suitable device for communication based on this information, including geographical range, capacity, reliability, and frequency usage, to optimize data relay and connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a vehicle connects to a predetermined communication device through another vehicle using a different communication method, then communication quality may be improved by offloading the predetermined device, but the communication device cannot recognize whether the another device is actually connectable to the predetermined device, leading to potential connection failures

Engineering Contradiction:

Improvecommunication qualityVSAvoidconnection establishment

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by having the another device transmit information about its connection status to the predetermined device before the communication device attempts to establish a connection. This allows the communication device to select an appropriate another device based on pre-acquired information, avoiding connection failures and improving reliability without complicating the connection process.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses the another device as an intermediary that provides information about its connection capability to the predetermined device. This intermediary role allows the communication device to make informed selection decisions without directly verifying the another device's connection status, simplifying the overall connection establishment process while improving reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a large number of vehicles communicate with a predetermined communication device, then comprehensive coverage is achieved, but wireless resources and arithmetic resources become insufficient, degrading communication quality

Engineering Contradiction:

Improvecoverage areaVSAvoidcommunication quality

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies segmentation by dividing the communication task into two parts: the predetermined device maintains wide coverage using cellular communication, while another vehicles handle local data transmission using different communication methods. This segmentation offloads traffic from the predetermined device, preventing resource exhaustion and maintaining communication quality for all vehicles.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces another dimension by utilizing multiple communication methods (cellular communication and other communication methods) simultaneously. Vehicles can switch between dimensions based on their needs, allowing comprehensive coverage through cellular networks while maintaining high-quality local communication through alternative methods, thus avoiding resource bottlenecks.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Productivity

If a vehicle uses a different communication method to connect to another device, then resource usage is optimized, but the geographical area where connection is possible becomes extremely limited

Engineering Contradiction:

Improveresource efficiencyVSAvoidconnection area

Core Design Contradiction:

ProductivityVSArea of stationary object

Solution Approach 1:

The patent applies universality by enabling vehicles to perform multiple communication functions through different methods. The same vehicle can use cellular communication for wide-area coverage and other communication methods for local high-speed transmission. This multi-functionality allows the system to optimize resource usage while maintaining broad geographical coverage through selective method deployment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12634805B2Communication device, base station, control method, and computer-readable storage medium for selecting a second device for relaying communication between devices

Publication Date: 2026.05.19 HONDA MOTOR CO LTD

AI summary

A communication device that performs communication wirelessly receives by using a first communication method, from a first another device, information regarding a condition for communication in a second communication method within a geographical range where communication with the first another device is possible, the second communication method being different from the first communication method, and selects a second another device that performs the communication in the second communication method, based on the information regarding the condition.