Tele-Operated Driving Session Segmentation for V2X Latency Control
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Solution Overview
Problem
Current communication protocols for tele-operated driving in V2X applications do not adequately address the requirements for establishing and maintaining reliable sessions, particularly in terms of latency and data rate, which are crucial for effective remote vehicle operation.
Innovation Solution
The implementation of methods for establishing, updating, and terminating tele-operated driving sessions between V2X application enablers and servers, including authentication, service information exchange, and quality of service management, to ensure seamless communication and control in V2X networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If tele-operated driving sessions are established with real-time video streaming and sensor data transmission, then the data rate increases to hundreds of Mbps, but the latency increases which may compromise the synchronization between commands and vehicle status
Solution Approach 1:
The patent segments the tele-operated driving communication into multiple PDU (Protocol Data Unit) sessions, each handling specific data types (video streaming, sensor data, control commands). This segmentation allows optimized QoS parameters for each session type, ensuring high data rate for video while maintaining low latency for control commands, thus resolving the contradiction between overall data rate and critical latency requirements.
Solution Approach 2:
The patent dynamically adjusts QoS parameters (priority levels, bandwidth allocation, latency thresholds) based on the specific requirements of different data streams. By changing parameters adaptively according to session type and network conditions, the system achieves high data rates for non-critical data while maintaining low latency for time-sensitive control signals.
2Reliability
If multiple cameras and high-definition video streaming are used to ensure comprehensive vehicle visibility, then the communication requirements become more stringent, but the complexity of the communication system increases
Solution Approach 1:
The patent implements a universal V2X communication framework that handles multiple data types (video, sensor data, commands) through a common session management architecture. The VAE (V2X Application Enabler) provides multi-functional support for different communication requirements, reducing system complexity by avoiding separate dedicated systems for each function while maintaining high reliability for vehicle visibility.
Solution Approach 2:
The patent introduces a VAE server as an intermediary that manages the complexity of multiple camera feeds and video streaming sessions. The server coordinates QoS parameters, session establishment, and resource allocation, simplifying the overall system architecture while ensuring reliable high-definition video transmission for comprehensive vehicle visibility.
3Reliability
If tele-operated driving sessions require strict QoS parameters for safety, then the session establishment becomes more complex, but the ease of operation decreases
Solution Approach 1:
The patent implements preliminary QoS parameter configuration and session template definition before actual tele-operated driving sessions begin. Safety-critical parameters are pre-configured and validated, allowing rapid session establishment without complex real-time negotiations. This preliminary action ensures safety requirements are met while simplifying the operational process.
Solution Approach 2:
The VAE server automatically performs QoS parameter validation, session establishment, and resource allocation without requiring manual configuration. The system self-services by enforcing safety parameters and managing complex protocols automatically, maintaining high safety standards while improving ease of operation through automation.
Data Source
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AI summary
A method of operating a first device in a wireless communication network is provided. The method includes operations of establishing a tele-operated driving session between the first device and a second device, updating the tele-operated driving session between the first device and the second device, and terminating the tele-operated driving session between the first device and the second device.