Optical Path Scheduling for Future Bandwidth Allocation
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Solution Overview
Problem
Existing optical network systems face rejection of communication optical path allocation requests when there are no available routes or frequencies to allocate, leading to inefficiencies in managing increasing traffic demands.
Innovation Solution
An optical path design device and method that schedules future allocation times and routes for communication paths, using a scheduling unit to adjust timing based on demand information, including bandwidth, start and end times, and queue management for future allocations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If optical path allocation is performed only when routes and frequencies are immediately available, then allocation speed is fast, but allocation requests are rejected when resources are unavailable
Solution Approach 1:
The patent applies preliminary action by performing advance scheduling of optical path allocations. The scheduling unit creates allocation schedules in advance for future time zones when routes and frequencies are predicted to be available, even before actual allocation requests are made. This allows the system to secure resources proactively, preventing rejection of allocation requests while maintaining fast response when allocation time arrives.
2Productivity
If optical paths are dynamically allocated and released based on communication demand, then resource utilization is optimized, but allocation requests may be rejected during high demand periods
Solution Approach 1:
The scheduling unit performs advance scheduling by predicting future communication demands and securing routes and frequencies in advance for predicted high-demand periods. This preliminary action ensures that when actual allocation requests are made during high demand, the resources are already reserved, preventing rejection while maintaining efficient resource utilization through dynamic allocation.
3Loss of time
If multiple allocation requests are handled in real-time, then response time is short, but available routes and frequencies may be insufficient
Solution Approach 1:
The scheduling unit secures routes and frequencies in advance for future allocation based on predicted demand patterns. By performing this preliminary resource reservation, the system ensures that sufficient routes and frequencies are available when real-time allocation requests are processed, preventing resource exhaustion while maintaining fast processing times.
Solution Approach 2:
The system dynamically adjusts the allocation schedule based on actual communication demands and resource availability. The scheduling unit can modify future allocation plans as new information becomes available, optimizing the balance between response time and resource availability by shifting allocations to different time zones or routes as needed.
Data Source
AI summary
An optical path design device includes a scheduling unit configured to generate, according to demand information, including information on a frequency bandwidth required for communication between a first node device at a start point of an optical path and a second node device at an end point of an optical path, and including information on a future time zone in which the communication will be executed, allocation content including information on a route connecting the first node device and the second node device and information on a center frequency of the frequency allocated to the communication corresponding to the demand information and determine the start time and the end time of the allocation of the allocation content, and a queue for adjusting a timing of allocation of the allocation content in the future time zone based on the start time and the end time of the allocation in a case where the allocation content cannot be allocated to the communication corresponding to the demand information with the current time as the start time of the allocation.