Method and apparatus for photoelectric collaborative resource allocation based on spectrum state perception

By adopting a spectrum state-aware optoelectronic collaborative resource allocation method, the congestion problem caused by spectrum fragmentation in EON networks is solved, achieving efficient utilization of spectrum resources and reliability of service transmission, and adapting to dynamic service requirements.

CN122159947APending Publication Date: 2026-06-05STATE GRID XINJIANG ELECTRIC POWER CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID XINJIANG ELECTRIC POWER CORP
Filing Date
2025-12-26
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In EON-enabled 'IP+optical' networks, the dynamic establishment and teardown of services can easily lead to the discretization of link frequency slots, forming spectrum fragmentation, causing network congestion and reducing spectrum utilization efficiency, and increasing the complexity of routing and spectrum allocation.

Method used

A spectrum-state-aware optoelectronic collaborative resource allocation method is adopted. The K-SP algorithm is used to screen candidate paths, calculate the idle frequency slot ratio, concentration and fragment matching degree of the link, select the path with the highest spectrum performance adaptability as the working path, and set protection paths to meet the constraints of spectrum consistency and continuity, so as to realize flexible allocation of spectrum resources and failure rate assessment.

Benefits of technology

It significantly improves network spectrum utilization, reduces the risk of service requests being blocked due to spectrum resource shortages or path failures, enhances network fault tolerance and service transmission success rate, and adapts to diverse and dynamic service needs.

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Abstract

The application discloses a kind of photoelectricity collaborative resource allocation method and device based on spectrum state perception, after the method receives dynamic service request, IP layer service traffic is converted into optical layer frequency slot;K-SP algorithm is filtered K alternative paths, the idle frequency slot proportion of each path link, concentration and fragment matching degree are calculated, and then the spectrum efficiency adaptation degree is obtained, the path corresponding to the maximum value is selected as working path;From the remaining path, the alternative path that meets the reservation bandwidth requirement is filtered, and the optimal protection path is selected after calculating the failure rate;When working path meets spectrum constraint, resource is distributed, and when fault, it is switched to protection path and is connected transmission.The application optimizes path selection by spectrum state accurate perception, effectively reduces spectrum fragment, improves spectrum utilization, reduces service blocking rate, enhances network reliability and dynamic adaptation ability.
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