Centralized Network Configurator for Time-Sensitive Traffic Scheduling
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Solution Overview
Problem
Conventional network systems fail to ensure that time-sensitive data arrives at the reception entity within the required delay, especially in environments where both time-sensitive and time-insensitive data coexist.
Innovation Solution
A central network configurator is introduced to control data traffic scheduling in a time-sensitive network, which includes a receiver for stream information, a resource allocator for output port time resource allocation, a gate control list generator for switch and transmission entity gate control, and a transmitter for distributing control lists.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional network systems are used to transmit both time-sensitive and time-insensitive data, then network bandwidth is utilized, but time-sensitive data fails to arrive within the required delay
Solution Approach 1:
The network data traffic is segmented into two distinct categories: time-sensitive data and time-insensitive data. The patent implements separate queue structures and scheduling mechanisms for each data type, allowing time-sensitive data to be prioritized and transmitted with guaranteed delay bounds while time-insensitive data is handled separately. This segmentation resolves the contradiction by ensuring reliability for time-sensitive data without requiring the network to be dedicated solely to such traffic.
Solution Approach 2:
Different quality of service (QoS) characteristics are applied locally to different data types within the same network. Time-sensitive data receives strict delay bounds and prioritized scheduling, while time-insensitive data is handled with standard best-effort service. This local differentiation of service quality allows the network to maintain adaptability for mixed traffic while ensuring reliability for time-sensitive portions.
2Reliability
If centralized network configuration is implemented to control data traffic scheduling, then delay requirements for time-sensitive data are met, but computing time for traffic control increases
Solution Approach 1:
The patent performs preliminary network configuration and resource allocation before actual data transmission begins. The centralized network configurator pre-calculates and establishes transmission paths, queue assignments, and scheduling parameters for time-sensitive data flows. By performing this configuration work in advance, the system ensures delay requirements are met during actual transmission while minimizing real-time computing overhead.
Solution Approach 2:
Once the centralized configurator establishes the initial network configuration and scheduling parameters, the network switches and transmission entities operate autonomously according to pre-configured rules. Each switch independently manages its queues and forwarding decisions based on predetermined policies, eliminating the need for continuous centralized computation and reducing real-time computing time while maintaining delay guarantees.
Data Source
AI summary
A time-sensitive network control system and a centralized network configuration entity for controlling data traffic in the time-sensitive network control system.