Time Slot Selection Device for Optical Networks
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Solution Overview
Problem
In optical transmission networks, existing autonomous decentralized protocols like GMPLS/ASON struggle to efficiently select time slots for path setup, as they do not consider resource use states, leading to inefficient time slot allocation and management.
Innovation Solution
A time slot selection device and method that selects time slots based on resource use states, using a data link identifier, time slot size, and requested number of time slots, ensuring optimal resource allocation by examining and retrieving contiguous usable time slots while minimizing resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If time slots are selected without considering resource use states in autonomous decentralized systems, then path setting can be performed automatically, but time slot allocation becomes inefficient
Solution Approach 1:
The system performs preliminary examination of resource use states before path setting. The time slot selection device checks the use state of each time slot allocated between devices in advance, and designates time slots based on this pre-acquired information, avoiding inefficient allocation during the path setting process itself
Solution Approach 2:
The system implements feedback by continuously monitoring resource use states and using this information to guide time slot selection. The time slot selection device designates time slots based on the use state of resources, creating a closed-loop system where allocation decisions are informed by actual resource conditions
2Productivity
If users manually designate time slots one by one considering resource use states, then time slot allocation can be efficient, but operation complexity increases
Solution Approach 1:
The time slot selection device performs self-service by automatically examining resource use states and designating appropriate time slots without user intervention. The system autonomously selects time slots based on resource use states, eliminating the need for users to manually check and designate each time slot while maintaining efficient allocation
Solution Approach 2:
The time slot selection device acts as an intermediary between the path setup request and the time slot allocation process. It receives the path setup request, automatically examines resource use states, and designates time slots based on this information, simplifying the overall operation while achieving efficient allocation
Data Source
AI summary
A time slot selection device is provided that can consider resource use states on its own and allocate time slots. The time slot selection device performs time slot allocation, based on data link identifiers that identify a group of data links specified by a path setup request, a time slot size that is information about a required band, and a required number that is the number of contiguous time slots required. In this time slot selection device, a resource allocation section performs time slot selection, based on the resource use state of each time slot. By the time slot selection with consideration given to the use state of each time slot in the group of data links, time slots to be used can be selected so that a maximum number of contiguous usable time slots will be left. Thus, it is possible to efficiently use resources.