Terminal Time Synchronization Using TSN Clock Source
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current communication systems, particularly in the context of Ultra Reliability and Low Latency Communication (URLLC) services, face challenges in achieving high-accuracy clock synchronization for Time Sensitive Communication (TSC) services, especially in vehicle-to-everything (V2X)/sidelink (SL) scenarios, where existing technologies do not adequately support the required latency and reliability standards.
Innovation Solution
A time synchronization method and apparatus that utilize a terminal device with a processor and memory to execute a computer program, enabling synchronization based on a Time Sensitive Network (TSN) clock source, improving clock synchronization accuracy between TSN ingress and egress nodes, and ensuring accurate transmission requirements for TSC services by using a chip and computer-readable storage medium to implement the synchronization methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing V2X/sidelink technologies are used for time synchronization, then device compatibility is maintained, but clock synchronization accuracy is insufficient for TSC services
Solution Approach 1:
The patent changes the time base parameter from existing V2X/sidelink time references to a TSN clock source, enabling TSC services to achieve high-accuracy clock synchronization by utilizing the precise timing characteristics of TSN networks
Solution Approach 2:
The patent introduces a TSN clock source as an intermediary time reference between TSN ingress and egress nodes, mediating the synchronization process to achieve the required accuracy for TSC services while maintaining compatibility with existing V2X/sidelink architectures
2Measurement precision
If TSN clock source synchronization is implemented, then clock synchronization accuracy is improved, but system complexity increases
Solution Approach 1:
The patent makes the terminal device capable of operating in multiple synchronization modes, allowing it to function as both a TSN node requiring high-accuracy synchronization and a V2X/sidelink device, thereby reducing overall system complexity through multi-functionality
Solution Approach 2:
The terminal device autonomously determines whether to use TSN clock source synchronization or existing V2X/sidelink time references based on service requirements, performing self-configuration to reduce the need for complex external control mechanisms
Data Source
AI summary
Provided are a time synchronization method and apparatus, and a terminal device. The method includes: a first terminal performs synchronization of a first time, wherein the first time is based on the time of a time sensitive network (TSN), and the first terminal is a TSN ingress node of a first network.