Time-Sensitive Network Switch Capability Announcement
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Solution Overview
Problem
Existing time-sensitive network technologies face challenges in identifying time-sensitive attributes of neighboring devices, leading to poor connectivity, confused interconnection management, and low utilization of network resources, which results in unreliable and non-deterministic data transmission.
Innovation Solution
A data transmission method and system that automatically identifies time-sensitive attributes of neighboring devices by using additional Ethernet capability announcement information, allowing for plug-and-play and network configuration requirements to be met, and improving network resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional link discovery protocol is used to transmit device information, then device connectivity is established, but time-sensitive attributes cannot be identified and frame preemption function cannot be distinguished
Solution Approach 1:
The patent segments device information into two categories: basic device information (transmitted via traditional protocols) and time-sensitive attributes (transmitted via additional Ethernet capability announcement information). This segmentation allows the system to maintain backward compatibility while adding time-sensitive network identification capabilities, resolving the contradiction between establishing connectivity and identifying time-sensitive attributes.
Solution Approach 2:
The patent introduces an intermediary mechanism (additional Ethernet capability announcement information field) that carries time-sensitive attribute information between devices. This intermediary enables the transmission of frame preemption function and other time-sensitive characteristics without disrupting the existing link discovery protocol, thus preserving both connectivity and information completeness.
2Adaptability or versatility
If devices from different manufacturers with different protocols are interconnected, then device diversity is supported, but interconnection management becomes confused and network utilization decreases
Solution Approach 1:
The patent implements a universal identification mechanism that works across devices from different manufacturers. The additional Ethernet capability announcement information field serves as a standardized interface that can identify time-sensitive attributes regardless of the device's original protocol or manufacturer, enabling multi-vendor interoperability while simplifying management through unified attribute recognition.
Solution Approach 2:
The patent changes the parameter representation by adding a standardized Ethernet capability announcement field that translates diverse manufacturer-specific protocols into a common time-sensitive network identification format. This parameter transformation enables uniform management of heterogeneous devices without requiring complex manufacturer-specific handling logic.
3Productivity
If QoS-based data transmission is used, then network resource allocation is achieved, but real-time performance requirements cannot be met and transmission is non-deterministic
Solution Approach 1:
The patent introduces dynamic frame preemption capability that allows high-priority time-sensitive data to dynamically preempt lower-priority traffic in real-time. This dynamic mechanism, controlled by the Ethernet capability announcement field, enables the network to adapt traffic handling based on real-time requirements, transforming static QoS allocation into dynamic real-time prioritization that guarantees deterministic transmission for time-sensitive applications.
Data Source
AI summary
The present disclosure discloses a data transmission method and system in time-sensitive network, which relates to the technical field of time-sensitive network of industrial Internet. The devices include multiple industrial end stations, multiple time-sensitive network switches and a network configuration operating system. In the present disclosure, the method and system can effectively reduce the processing time overhead of time-sensitive data in devices and is compatible with traditional Ethernet data transmission.