Optical Communication Waveform Equalization Power Control
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Solution Overview
Problem
In digital optical communication systems, power restrictions at stations can lead to insufficient electric power for optical transmitters/receivers, necessitating costly peak power facility installations and inefficient operation due to varying traffic conditions.
Innovation Solution
A digital optical communication system with a communication control unit that dynamically controls reception-side and transmission-side waveform equalization processing units based on available electric power, enabling or disabling these units to optimize power usage across interconnected stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If waveform equalization processing is performed at both transmission and reception sides, then waveform distortion compensation accuracy is improved, but electric power consumption increases
Solution Approach 1:
The patent implements dynamic control of waveform equalization processing by allowing the transmission-side equalization unit to be selectively activated or deactivated based on real-time electric power availability at each station. This dynamic adjustment enables the system to adapt processing distribution between transmission and reception sides, maintaining compensation accuracy when power is available while reducing consumption when power is restricted.
Solution Approach 2:
The patent applies local quality by enabling waveform equalization processing at specific stations based on their individual electric power circumstances. Instead of uniform processing across all stations, the system allows only stations with sufficient power supply to perform transmission-side equalization, while other stations rely on reception-side equalization only, thus optimizing the overall power consumption while maintaining necessary compensation accuracy.
2Reliability
If electric power facilities are installed based on peak power requirements, then reliability of power supply is improved, but investment cost increases
Solution Approach 1:
The patent implements dynamic adaptation to varying power availability by allowing the waveform equalization processing to be flexibly activated or deactivated based on real-time power conditions. This eliminates the need for always-available peak power facilities, as the system can operate reliably with lower power by dynamically adjusting processing requirements according to actual power availability.
Solution Approach 2:
The patent changes the operational parameters of the communication system by adjusting the waveform equalization processing level based on power availability. When power is limited, the system transitions to using only reception-side equalization; when power is sufficient, transmission-side equalization is added. This parameter adjustment allows reliable operation across different power conditions without requiring peak power infrastructure.
3Reliability
If waveform equalization processing is always performed, then communication quality is improved, but flexibility in power-constrained environments deteriorates
Solution Approach 1:
The patent implements dynamic control that allows the system to adapt its waveform equalization processing based on real-time power conditions. The transmission-side equalization unit can be selectively activated or deactivated, enabling the system to maintain high communication quality when power is available while flexibly reducing processing requirements when power is constrained, thus achieving both quality and adaptability.
Solution Approach 2:
The patent changes operational parameters by adjusting the level of waveform equalization processing according to power availability. The system transitions between different processing modes (full equalization when powered, reception-only equalization when constrained), maintaining communication quality within the bounds of available power resources and demonstrating adaptability to varying power circumstances.
Data Source
AI summary
In order to enable flexible and efficient operations according to various electric power circumstances, a digital optical communication system 1 is provided with multiple optical transfer apparatuses 2, 3 and a communication control unit 4. The optical transfer apparatuses 2, 3 respectively house optical transmission/reception devices 10, 20 each including a reception-side waveform equalization processing unit 12 and a transmission-side waveform equalization processing unit 11 that perform, respectively on the reception side and on the transmission side, equalization processing for compensating waveform distortion that occurs on transfer paths 5, 6. The communication control unit 4 controls, on the basis of information about the amounts of power that can be supplied to the optical transfer apparatuses 2, 3, the reception-side waveform equalization processing unit 12 and the transmission-side waveform equalization processing unit 11 such that, between the optical transfer apparatuses 2, 3 communicating with each other via the transfer paths 5, 6, either the transmission-side waveform equalization processing unit 11 in the optical transmission/reception device of one of the optical transfer apparatuses or the reception-side waveform equalization processing unit 12 in the optical transmission/reception device of the other optical transfer apparatus performs the equalization processing.