Wavelength Label Conflict Detection in Optical Networks
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Solution Overview
Problem
Current optical communication systems lack a method to detect wavelength label conflicts, which can occur when multiple wavelengths with similar amplitude and phase values are transmitted, leading to interference and performance degradation.
Innovation Solution
A wavelength label conflict detection method and device that performs spectrum analysis on received signals to determine conflicts by identifying successive time windows with amplitude and phase values outside predetermined threshold ranges, using a wavelength label receiving device with a spectrum analysis module and conflict detection module to identify deviations from normal reference ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wavelengths with similar amplitude and phase values are transmitted simultaneously, then the network capacity and flexibility are improved, but wavelength label conflicts occur causing interference and performance degradation
Solution Approach 1:
The patent performs spectrum analysis on wavelength label signals before they cause interference problems. By proactively detecting amplitude and phase values outside reference ranges, the system identifies potential wavelength conflicts before they degrade signal quality, allowing preventive action to be taken.
Solution Approach 2:
The patent establishes a feedback mechanism where the receiving device continuously monitors wavelength label signals, compares amplitude and phase values against predetermined reference ranges, and generates detection results that can trigger alarm information. This closed-loop feedback enables real-time detection and response to wavelength conflicts.
2Loss of information
If wavelength label detection is performed using conventional methods, then the receiving device can identify wavelength information, but no conflict detection capability exists leading to undetected interference
Solution Approach 1:
The patent extends conventional wavelength detection by adding spectral dimension analysis. Instead of only detecting wavelength presence, the system performs spectrum analysis to examine amplitude and phase characteristics across frequency dimensions, enabling detection of conflicts that conventional single-dimension methods would miss.
Solution Approach 2:
The patent monitors changes in amplitude and phase parameters of wavelength label signals over time. By detecting when these parameters deviate from reference ranges established during normal operation, the system can identify wavelength conflicts based on parameter anomalies rather than just signal presence.
Data Source
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AI summary
The embodiments of the present invention disclosed a wavelength label conflict detection method and device and a wavelength label receiving device to perform spectrum analysis on received wavelength label signals, and determine that wavelength labels conflict when judging that at least one of the following two conditions is met: there are N successive time windows in M time windows whose corresponding wavelength label signals are wavelength label signals transmitted by loading a wavelength label frequency, and the maximum different value between the amplitude values of the wavelength label signals corresponding to the N time windows is smaller than a preset amplitude threshold value, and none of the amplitude values thereof belong to a normal reference amplitude range; the maximum difference value between the amplitude values of the wavelength label signals corresponding to the N time windows is smaller than a preset amplitude threshold value, and the maximum difference value between the phase values thereof is smaller than a preset phase threshold value and none of the phase values thereof belong to a reference phase range; both M and N are integers greater than 1.