V2X Service Advertisement Segmentation for Non-Real-Time Data

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Solution Overview

Problem

As V2X communication connectivity increases, there is a need for efficient methods to distinguish and transmit service data, particularly for non-real-time services, which existing data distribution schemes in application classes struggle to handle effectively, leading to inefficiencies and restrictive data use.

Innovation Solution

A method for V2X communication that includes receiving service advertisement information with headers and segments providing option indicators, provider service IDs, sub-provider service IDs, and compression information, allowing for filtering and processing of desired service data, and supporting non-real-time service access through reserved time information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If data distribution is performed in application classes, then data organization is simplified, but service data distinction becomes insufficient

Engineering Contradiction:

Improvedata organization complexityVSAvoidservice data distinction

Core Design Contradiction:

Device complexityVSLoss of information

Solution Approach 1:

The service advertisement information is segmented into distinct components: header, service information segment, and channel information segment. The service information segment is further divided into service ID fields (PSID, SPSID) and service attribute fields, enabling fine-grained distinction of service data while maintaining organized structure.

Inventive Principle:

Principle #1Segmentation

2Loss of information

If service advertisement information is transmitted in detail, then service distinction is improved, but communication overhead increases

Engineering Contradiction:

Improveservice data distinctionVSAvoidcommunication overhead

Core Design Contradiction:

Loss of informationVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential service identification information (PSID and SPSID) and key service attributes into the service advertisement, separating detailed service data into the service information segment. This allows receivers to filter and process only relevant services without transmitting unnecessary detailed information, reducing communication overhead while maintaining service distinction.

Inventive Principle:

Principle #2Taking out (Extraction)

3Speed

If existing data distribution schemes are used, then real-time services are supported, but non-real-time services are restricted

Engineering Contradiction:

Improvereal-time service supportVSAvoidnon-real-time service support

Core Design Contradiction:

SpeedVSAdaptability or versatility

Solution Approach 1:

The service advertisement information structure is designed to be dynamic and adaptable. The header includes option indicator information that can indicate the presence or absence of service information segment or channel information segment. The service attribute fields can be configured to support different service types (real-time or non-real-time) by setting appropriate parameters, enabling the system to adapt to different service requirements without restrictive constraints.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11218948B2V2X communication device and data communication method therefor

Publication Date: 2022.01.04 LG ELECTRONICS INC

AI summary

Disclosed is a method for communicating data of a V2X communication apparatus. The method for communicating data of a V2X communication apparatus according to an embodiment of the present invention includes receiving service advertisement information for announcing a service; and receiving service data based on the service advertisement information, the service advertisement information includes at least one of a header and a service information segment or a channel information segment.