Communication System Routing Control for Guaranteed Delay
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Solution Overview
Problem
Existing communication systems struggle to maintain guaranteed end-to-end delay times when packet delays increase due to congestion in communication devices within an end-to-end distance.
Innovation Solution
A communication system is partitioned into sections with networks having detours, where an integrated control unit determines optimal guaranteed delay times for each section and notifies section control units to switch paths if delays exceed the optimal values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If priority of reading is used to reduce delay, then delay time can be kept below SLA value, but it becomes impossible to satisfy guaranteed delay time when congestion occurs in communication devices
Solution Approach 1:
The communication system is divided into multiple sections, each with its own section control unit that independently performs path control. This segmentation allows localized optimization of delay times in each section while maintaining overall end-to-end delay guarantees, enabling the system to adapt to congestion in specific communication devices without compromising the entire path's SLA compliance.
Solution Approach 2:
The system dynamically switches paths based on real-time delay conditions. When delay exceeds the optimal guaranteed delay time in any section, the section control unit automatically switches to an alternative path. This dynamic adaptation ensures that the system can respond to congestion events and maintain guaranteed delay times even when communication devices experience variable performance.
2Adaptability or versatility
If multiple networks with detours are formed, then path switching capability is improved, but system complexity increases
Solution Approach 1:
The complex network is segmented into multiple manageable sections, each controlled by a dedicated section control unit. This segmentation reduces the control complexity at each node while maintaining overall path switching capability. Each section control unit only needs to manage its local section's paths, making the system more manageable despite the presence of multiple detour networks.
Solution Approach 2:
Section control units act as intermediaries between the integrated control unit and communication devices. These intermediaries simplify the control architecture by distributing the path control function across multiple manageable entities, reducing the complexity burden on any single component while maintaining comprehensive path switching capability.
Data Source
AI summary
Provided is a communication system in which a plurality of networks each having a detour within an end-to-end distance are formed, the communication system including: a plurality of section control units that perform path control for each of sections with a network having a detour, the sections being obtained by partitioning the communication system; and an integrated control unit that controls the plurality of section control units, in which the integrated control unit includes an optimization unit that determines an optimal guaranteed delay time for each section to satisfy an end-to-end guaranteed delay time provided by a service, and a notification unit that notifies the plurality of section control units of the optimal guaranteed delay time for each section determined by the optimization unit, and the plurality of section control units each include a switching destination instruction unit that instructs a switching destination to switch to a path satisfying the optimal guaranteed delay time notified from the integrated control unit.