V2X Group Member Discovery Through Shared Neighbor Lists

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Solution Overview

Problem

Existing vehicle-to-everything (V2X) communication systems face challenges in efficiently discovering and managing group members, particularly in complex vehicular environments, leading to suboptimal communication efficiency and reliability.

Innovation Solution

A method and system for V2X wireless devices to discover and manage group members through a process involving receiving indications of V2X groups, updating neighbor lists, and sharing them with other group members, enabling direct or relayed communications among vehicles, pedestrians, and infrastructure using various communication models.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional V2X communication systems are used for group member discovery, then basic communication functionality is maintained, but communication efficiency and reliability deteriorate in complex vehicular environments

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidcommunication efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent segments the V2X communication system into distinct functional components: group management entities that handle group formation and member management separately from data transmission entities. This segmentation allows optimized handling of group member discovery through dedicated neighbor list management, improving both reliability and efficiency in complex vehicular environments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces neighbor lists as intermediary data structures that mediate between group members. These neighbor lists serve as intermediaries for discovering and managing group members, enabling efficient communication routing and group management without requiring direct peer-to-peer connections between all members, thus improving communication efficiency and reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If comprehensive group member discovery is implemented, then communication reliability improves, but system complexity increases

Engineering Contradiction:
Improvegroup member discovery accuracyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the complex group member discovery process into manageable segments: group formation phase, neighbor list generation phase, and neighbor list update phase. Each phase handles specific tasks independently, reducing overall system complexity while maintaining comprehensive discovery capability through structured, modular operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements preliminary actions by pre-establishing group structures and generating neighbor lists in advance before actual communication occurs. This preliminary group member discovery and neighbor list preparation reduces the complexity of real-time communication by having organizational structures ready beforehand.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12389314B2Vehicle wireless device discovery
Publication Date: 2025.08.12 COMCAST CABLE COMM LLC
  • US12389314B2 patent drawing
  • US12389314B2 patent drawing
  • US12389314B2 patent drawing

AI summary

A method and system for discovering vehicle-to-everything (V2X) group members are disclosed. A V2X wireless device may receive an indication of a V2X group. The V2X wireless device may discover another V2X wireless device in the V2X group and update a list of neighboring V2X wireless device group members. The list of neighboring V2X wireless device group members may be shared with other V2X wireless device group members. A first V2X wireless device group member may discover a second V2X wireless device group member via a third V2X wireless device group member.