Optical Burst Transmission of Segmented Management Control Signals
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Solution Overview
Problem
The challenge in TDM-PON systems is the difficulty in superimposing low-speed management control signals, such as AMCC signals, on high-speed burst signals due to differing frame lengths, preventing effective management and control in time division multiplexing systems.
Innovation Solution
An optical communication device and method that divides management control signals and superimposes them on burst signals at assigned transmission timings, using a management control signal division unit and transmission unit for transmission, and a signal extraction and integration unit for restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If management control signals are superimposed on burst signals in TDM-PON systems, then transmission efficiency is improved by avoiding dedicated optical wavelengths, but signal collision and frame length mismatches occur making superposition difficult
Solution Approach 1:
The management control signal is divided into multiple segments that can be transmitted separately and integrated at the receiving end. This segmentation allows the control signal to be properly synchronized with burst signals of varying frame lengths, preventing signal collision while maintaining transmission efficiency.
Solution Approach 2:
The system dynamically adjusts the transmission timing and segmentation of management control signals based on the varying frame lengths of burst signals. This dynamic adaptation enables successful superposition without signal collision by flexibly matching the control signal transmission to the burst signal timing.
2Reliability
If management control signals are transmitted using dedicated optical wavelengths, then signal collision is avoided, but transmission efficiency decreases due to wavelength resource consumption
Solution Approach 1:
The management control signal transmission is merged with the existing burst signal transmission by superimposing them in the time domain. This combining approach allows both signals to share the same optical wavelength resource, improving transmission efficiency while the segmentation and dynamic timing adjustment prevent signal collision.
Solution Approach 2:
The burst signal transmission mechanism is made multi-functional by enabling it to carry both data traffic and management control signals simultaneously. This universality eliminates the need for dedicated wavelengths for control signals, improving overall system efficiency while maintaining reliable collision-free transmission through proper signal segmentation and timing.
Data Source
AI summary
An optical communication device that communicates with another optical communication device by using at least a time division multiplexing system, the optical communication device including: a management control signal division unit that divides a management control signal used for management and control; and a transmission unit that transmits the management control signal divided, by including the management control signal divided in a burst signal to be transmitted at an assigned transmission timing.