Sidelink Communication Device Using Feature-Based Layer-2 ID Extraction

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Solution Overview

Problem

Existing Sidelink communication technologies struggle to efficiently communicate with a specific partner in environments where multiple potential communication partners are present.

Innovation Solution

A communication device that extracts features from captured images, generates Layer-2 IDs including feature information, and uses these IDs for Sidelink communication to specifically target and communicate with intended partners.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If communication is performed using conventional Sidelink communication methods without feature-based identification, then communication can be established with any device in range, but unrelated vehicles respond simultaneously causing communication delays and inefficiency

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidtime to establish communication

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The Layer-2 ID is segmented into multiple fields including a feature information field that contains specific characteristics of the transmission destination (such as vehicle type, color, or other identifiable features). This segmentation allows receiving devices to quickly filter messages based on matching feature criteria rather than processing all communications in the area, thereby reducing simultaneous responses from unrelated vehicles and improving communication efficiency.

Inventive Principle:

Principle #1Segmentation

2Reliability

If feature information is extracted and included in Layer-2 IDs for precise identification, then communication with specific partners is achieved, but device complexity increases due to image processing requirements

Engineering Contradiction:

Improveaccuracy of communication partner identificationVSAvoidcomplexity of feature extraction system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system extracts only the necessary feature information from captured images that is sufficient for identification purposes, rather than performing complete image analysis. The feature information field in the Layer-2 ID contains only the key characteristics needed to distinguish the transmission destination from other devices. This partial extraction approach achieves reliable identification while avoiding the excessive complexity of full image processing systems.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250048462A1Communication device, communication system, communication device control method, and non-transitory computer readable medium

Publication Date: 2025.02.06 CANON KK

AI summary

A communication device includes an extraction unit that extracts, from a captured image, a feature of a transmission destination present in the captured image, a generation unit that generates a Layer-2 ID including feature information indicating the feature, and a transmission unit that transmits information using a Sidelink communication method using the Layer-2 ID.