Multi-RAT V2X Communication With Dynamic Access Selection

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Solution Overview

Problem

Devices in wireless communication networks may not be compatible with each other for V2X communication, limiting effective communication capabilities.

Innovation Solution

Establishing multiple network connections for direct communication with mobile networks and other remote units over various radio access types, determining the appropriate access type for vehicle-to-everything communication, and requesting resources for transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If devices use single radio access type for V2X communication, then device compatibility is limited, but system complexity is reduced

Engineering Contradiction:
Improvedevice compatibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements multi-RAT support by enabling devices to simultaneously maintain connections across multiple radio access types (LTE, NR, Wi-Fi). The device includes multiple communication interfaces and protocols, allowing it to function across different network types. The system selects appropriate RATs based on service requirements, achieving universal compatibility without requiring separate dedicated devices for each communication type.

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

Solution Approach 2:

The patent employs dynamic RAT selection where the device continuously monitors network conditions and service requirements to determine the optimal radio access type for each V2X communication task. The system can switch between LTE, NR, and Wi-Fi based on real-time factors such as network availability, service quality requirements, and traffic patterns, making the communication system adaptable rather than static.

Inventive Principle:
Principle #15Dynamics

2Productivity

If multiple network connections are established for V2X communication, then communication efficiency improves, but resource management complexity increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidresource management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments V2X communication services into different categories (safety-critical, non-safety critical, high-latency tolerant) and assigns them to appropriate radio access types. Each service type has dedicated resource pools and transmission parameters. This segmentation allows efficient parallel operation of multiple connections while simplifying resource management through service-specific configurations rather than universal complex control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a network controller and service management function that act as intermediaries between the device and multiple network connections. This intermediary layer handles resource allocation, connection management, and coordination across different RATs, offloading the complexity from the device itself while maintaining efficient multi-connection operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If radio access type is selected based on service requirements, then service quality improves, but determination complexity increases

Engineering Contradiction:
Improveservice qualityVSAvoiddetermination complexity
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent pre-configures service quality requirements and RAT suitability criteria before actual V2X communication occurs. Service types are pre-categorized with their specific needs (latency, reliability, bandwidth), and each radio access type has pre-evaluated characteristics stored in the system. When a V2X service needs to be established, the system performs a lookup and matching operation rather than complex real-time analysis, significantly simplifying the determination process while maintaining service quality.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12490160B2V2X communication over multiple radio access types
Publication Date: 2025.12.02 LENOVO (SINGAPORE) PTE LTD
  • US12490160B2 patent drawing
  • US12490160B2 patent drawing
  • US12490160B2 patent drawing

AI summary

Apparatuses, methods, and systems are disclosed for V2X communication over multiple radio access types. One method includes transmitting, from a remote unit, information indicating a vehicle-to-everything capability of the remote unit. The method includes receiving a response to the information indicating the vehicle-to-everything capability of the remote unit. The response indicates whether the remote unit is authorized to use the vehicle-to-everything capability.