Connected Autonomous Driving Communication Apparatus Verification Data Packaging
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Solution Overview
Problem
Current communication technologies for connected autonomous driving in 5G-NR-V2X environments lack efficient methods to secure verification data for performance verification when vehicles communicate with each other or with roadside base stations.
Innovation Solution
A communication apparatus and method that utilize an extension message to secure verification data by decoding an overall package, attaching request information as a unit package, and updating the overall package for transmission through Ethernet or V2X communication modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional communication methods are used for V2X communication, then communication can be established, but verification data for performance verification cannot be efficiently secured
Solution Approach 1:
The communication message is divided into an overall package and multiple unit packages. The overall package contains verification data and is transmitted separately from other data units, enabling efficient performance verification while maintaining communication efficiency.
2Reliability
If complete data packages are decoded and encoded for transmission, then data integrity is maintained, but transmission time and processing time increase
Solution Approach 1:
The verification data (overall package) is extracted from the complete data stream and transmitted separately. This allows the critical verification information to be processed and transmitted independently, reducing the time required for decoding and encoding while ensuring data integrity through dedicated CRC calculation.
3Measurement precision
If CRC calculation is performed on all data packages, then error detection accuracy is high, but calculation time increases
Solution Approach 1:
CRC calculation is performed only on the extracted overall package containing verification data, rather than on all data packages. This maintains high error detection accuracy for the critical verification information while significantly reducing the total calculation time.
4Measurement precision
If verification data is secured through detailed packaging protocols, then performance verification accuracy improves, but communication efficiency decreases
Solution Approach 1:
The communication protocol segments verification data into a separate overall package structure, allowing detailed verification protocols to be applied only where necessary while maintaining efficient communication for other data types.
Solution Approach 2:
The overall package containing verification data is prepared and transmitted in advance as part of the communication protocol structure, enabling performance verification to be conducted efficiently without disrupting the overall communication flow.
Data Source
AI summary
The present invention discloses a communication apparatus and method for connected autonomous driving. A communication apparatus for connected autonomous driving of the present invention includes an Ethernet communication module that performs communication through an Ethernet communication method, a vehicle-to-everything (V2X) that performs communication through a V2X communication method, a memory, and a processor operatively coupled to the Ethernet communication module, the V2X communication module, and the memory, wherein the processor determines the type of message of data received from the Ethernet communication module or the V2X communication module, and when the type of message is an extension message, decodes an overall package included in the extension message, then attaches request information to the extension message as a unit package according to the overall package, and updates the overall package to transmit encoded data through the Ethernet communication module or the V2X communication module.