Optical Node 3R Relay Decision Logic
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Solution Overview
Problem
Current optical networks lack an efficient method to determine the distance over which 3R relay is not necessary, leading to unnecessary use of expensive 3R repeaters and increased costs, as the placement of these repeaters cannot be accurately determined across the entire network.
Innovation Solution
The implementation of optical node devices that store and utilize 3R section information to autonomously determine the need for 3R relay along optical paths, allowing for the efficient elimination of unnecessary 3R repeaters and effective resource allocation by identifying sections where 3R relay is not required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 3R repeaters are inserted into each optical node device to provide 3R relay capability, then signal deterioration can be compensated, but the cost of the optical network increases significantly
Solution Approach 1:
The patent applies local quality by determining 3R relay necessity individually for each optical path based on its specific characteristics (transmission distance, fiber type, wavelength). Instead of uniformly providing 3R relay in all optical node devices, the system selectively enables 3R relay only in node devices where it is actually needed for each optical path, thereby reducing the overall number of 3R repeaters while maintaining signal quality where required.
2Reliability
If 3R repeaters are provided in all optical paths passing through an optical node device, then 3R relay capability is ensured, but device complexity and cost increase
Solution Approach 1:
The patent implements dynamics by making the 3R relay function configurable and adaptable for each optical path. The optical node device can dynamically determine whether to provide 3R relay based on path-specific parameters such as transmission distance, fiber characteristics, and wavelength. This dynamic approach allows the system to optimize 3R relay placement rather than having a static, uniform configuration across all paths.
3Reliability
If 3R repeaters are placed uniformly in all optical node devices, then transmission reliability is maintained, but network cost increases
Solution Approach 1:
The patent applies parameter changes by using path-specific parameters (transmission distance, fiber type, wavelength) to determine the necessity of 3R relay. Instead of using a uniform placement strategy, the system evaluates and adjusts the 3R relay configuration based on the actual parameters of each optical path, enabling optimized placement that maintains transmission reliability while reducing the total number of 3R repeaters required.
Data Source
AI summary
An economical optical network is constituted by effectively using network resources by using the minimum number of, or minimum capacity of 3R repeaters. 3R section information corresponding to topology information on the optical network to which an optical node device itself belongs is stored, and the 3R section information stored is referred so as to autonomously determine whether or not the optical node device itself is an optical node device for implementing the 3R relay when setting an optical path passing through the optical node device itself. Alternatively, when the optical node device itself is a source node, another optical node device for implementing the 3R relay among the other optical node devices through which the optical path from the optical node device itself to the destination node passes is identified, and this identified optical node device is requested to implement the 3R relay when setting an optical path in which the optical node device itself is a source node.