V2X Message Buffering for Emergency Data Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communication systems face challenges in supporting drastically increasing data traffic, requiring higher transmission rates, more linked devices, low end-to-end latency, and high energy efficiency, while also needing to transmit information related to neighboring vehicles in emergency situations efficiently.
Innovation Solution
A method for transmitting information from a first vehicle UE to a PSAP via V2X communication, involving the generation of a second V2X message based on a received message during an eCall, including control information for neighboring vehicles, and determining whether to transmit this message, a minimum set of data, or both, to a network entity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If V2X messages from neighboring vehicles are transmitted to PSAP during eCall emergencies, then information completeness and safety are improved, but transmission time and system complexity increase
Solution Approach 1:
The system pre-stores V2X messages from neighboring vehicles in a buffer before emergencies occur. When an eCall is triggered, these pre-collected messages are immediately available for transmission to PSAP, eliminating the need for real-time data collection during the emergency and thus reducing transmission time while maintaining information completeness.
2Measurement precision
If multiple V2X messages and control information are included in the second V2X message, then information accuracy is improved, but message size and processing complexity increase
Solution Approach 1:
The second V2X message is structured with clear segmentation between the original V2X message content and the added control information. This includes distinct fields for neighboring vehicle identifiers, relative position data, and other relevant parameters. The segmented structure allows PSAP to efficiently parse and process different information types separately, reducing overall processing complexity while maintaining complete and accurate information.
3Speed
If V2X communication is used to transmit emergency information to PSAP, then data transmission speed is improved, but energy consumption increases
Solution Approach 1:
Instead of continuously transmitting V2X messages during the entire eCall duration, the system employs periodic transmission only when necessary. V2X messages are transmitted to PSAP at specific intervals or triggered by significant events (such as changes in neighboring vehicle conditions), reducing unnecessary energy consumption while ensuring critical information is delivered promptly to maintain high data transmission speed when needed.
Data Source
AI summary
Disclosed herein is a method for transmitting information for a neighboring vehicle UE of a first vehicle UE using V2X (Vehicle-to-Everything) communication in a wireless communication system.The method includes receiving a first V2X message from at least one the neighboring vehicle UE; generating a second V2X message based on the received first V2X message when an accident triggering an eCall (emergency call) occurs, checking whether the second V2X message is ready to be transmitted to the first network entity; and transmitting at least one of the eCall, a minimum set of data (MSD) forming the data component of the eCall, or the second V2X message to the first network entity according to the result of the check.