Virtual V2X VRU Messaging for Vehicles Without Soft V2X

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Solution Overview

Problem

Existing wireless communication systems struggle to effectively notify surrounding vehicles about the presence of vulnerable road users (VRUs) when they lack soft V2X modules, which is crucial for implementing an autonomous driving system.

Innovation Solution

A method and device that convert VRU messages based on soft V2X into virtual V2X messages, which are then transmitted to surrounding vehicles, ensuring notification of VRUs even when the vehicles lack soft V2X modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If vehicles use soft V2X modules to receive VRU messages, then the ability to notify VRUs is improved, but compatibility with vehicles lacking soft V2X modules deteriorates

Engineering Contradiction:

ImproveVRU notification capabilityVSAvoidcompatibility with vehicles lacking soft V2X modules

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent uses virtual V2X messages as an intermediary format that bridges soft V2X and traditional V2X systems. The converting module transforms soft V2X VRU messages into virtual V2X message format that can be transmitted through conventional V2X communication channels, allowing both soft V2X-equipped vehicles and traditional V2X vehicles to access VRU information through their respective native protocols

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a converting module is added to transform soft V2X messages into virtual V2X messages, then compatibility with traditional V2X vehicles is improved, but device complexity increases

Engineering Contradiction:

Improvecompatibility with traditional V2X vehiclesVSAvoidmessage conversion functionality

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The converting module is designed with multi-functionality to handle multiple message types (VRU messages, basic safety messages, cooperative awareness messages) and transform them into appropriate virtual V2X formats. This universal approach consolidates conversion logic into a single module that serves multiple compatibility purposes, reducing overall system complexity compared to having separate conversion mechanisms for each message type

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12483867B2Method by which V2X vehicle transmits virtual V2X message in wireless communication system supporting sidelink, and device therefor

Publication Date: 2025.11.25 LG ELECTRONICS INC

AI summary

Disclosed are a method by which a V2X vehicle transmits a virtual V2X message in a wireless communication system supporting a sidelink according to various embodiments, and a device therefor, the method comprising: a step for periodically receiving a first message including first vulnerable road user (VRU) information on a first VRU from a network; a step for determining a state of the first VRU on the basis of the first VRU information, and determining whether to convert the first message to the virtual V2X message on the basis of the state of the first VRU; and a step for transmitting the virtual V2X message including the first VRU information, wherein the V2X vehicle converts the first message into the virtual V2X message when the first VRU state changes from a first state to a second state on the basis of the periodically received first message.