Vehicle Dual-RAT V2X Modules for Regional Compatibility

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Vehicle manufacturers face challenges in offering V2X communication functions in different markets due to variant diversity between IEEE 802.11p and C-V2X standards, leading to increased development, production, logistics, and sales costs.

Innovation Solution

An apparatus and method that includes both IEEE 802.11p and C-V2X communication modules, with a controller selecting the appropriate module based on the vehicle's region or territory, using static or dynamic control information such as hardcoded country codes, user language, location determination, or message detection, to ensure compatibility with local communication standards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If vehicle manufacturers use different V2X communication modules for different markets, then V2X communication compatibility is improved, but development, production, logistics and sales costs increase

Engineering Contradiction:
ImproveV2X communication compatibilityVSAvoidvariant diversity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal V2X communication module that supports multiple communication standards (IEEE 802.11p and C-V2X) within a single device. The module includes a controller that can switch between different communication protocols based on the operational region, eliminating the need for separate dedicated modules for each market. This multi-functional approach maintains compatibility across different regions while reducing device variant diversity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The V2X communication module incorporates a dynamic switching mechanism that allows it to adapt its communication protocol based on the detected operational region. The controller receives region information and dynamically selects the appropriate communication standard (IEEE 802.11p for certain regions, C-V2X for others), enabling the module to change its behavior based on environmental conditions rather than being fixed for a single market.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If vehicles are equipped with multiple V2X communication modules, then adaptability to different regions is improved, but device complexity increases

Engineering Contradiction:
Improveregion adaptabilityVSAvoidmodule selection complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system performs preliminary detection of the operational region using region detection information (such as GPS location or network-based detection) before the vehicle begins V2X communication. Based on this pre-detection, the controller pre-selects the appropriate communication module or protocol configuration, avoiding the need for complex real-time decision-making during communication operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The V2X communication module includes self-configuring capabilities where the controller automatically detects the operational region and selects the appropriate communication protocol without requiring manual intervention. The system uses region detection information to autonomously determine which communication standard to employ, reducing the complexity of manual module selection and configuration.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3910971B1Apparatuses and methods for wireless v2x communication of a vehicle
Publication Date: 2025.07.30 VOLKSWAGEN AG
  • EP3910971B1 patent drawingFigure 1
  • EP3910971B1 patent drawingFigure 2
  • EP3910971B1 patent drawingFigure 3

AI summary

The present disclosure relates to a concept for wireless Vehicle-to-everything, V2X, communication of a vehicle. A first communication module configured to provide V2X communication based on a first Radio Access Technology (RAT). A second communication module is configured to provide V2X communication based on a second RAT. A controller is configured to select either the first or the second communication module for V2X communication based on a territory the vehicle is operated in.