Optical Connection Control With Automatic Wavelength Assignment

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Solution Overview

Problem

Existing optical communication systems face challenges in automatically detecting initial user connections, performing wavelength assignment and path switching, and require manual switch operations, leading to increased delay and reduced optical service quality.

Innovation Solution

An optical communication device equipped with a detection unit, connection unit, acquisition unit, and notification unit that automatically detects user devices, assigns wavelengths, and notifies them of assigned wavelengths, enabling automatic connection settings without converting optical signals to electrical signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual switching and connection operations are performed in the optical communication device, then the device can be configured to connect user devices, but the operation complexity increases and service quality deteriorates due to delays

Engineering Contradiction:

Improveconnection setup operationVSAvoidcommunication delay

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The optical communication device automatically detects user device connections through the detection unit, performs wavelength assignment through the assignment unit, and establishes connections through the connection unit without requiring manual switching operations. The system serves itself by autonomously completing the entire connection setup process, eliminating the need for operator intervention and thereby reducing both operational complexity and time delays.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If optical signals are converted to electrical signals for processing in the OLT, then routing and switching functions can be performed, but communication delay increases and service quality deteriorates

Engineering Contradiction:

Improverouting and switching functionVSAvoidcommunication delay

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent replaces the conventional electro-optical conversion and electrical signal processing mechanism with an all-photonics processing approach. The optical communication device performs wavelength assignment and path switching directly on optical signals using optical components, eliminating the need to convert optical signals to electrical signals for processing. This substitution maintains full routing and switching functionality while avoiding the time delays associated with electro-optical conversion.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If the OLT stores signals in a buffer for priority control, then traffic management can be performed, but the delay further increases

Engineering Contradiction:

Improvepriority control capabilityVSAvoidcommunication delay

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The detection unit continuously monitors for user device connections in advance, and the assignment unit pre-assigns wavelengths before actual communication is needed. By performing these actions preliminarily and automatically, the system eliminates the need for buffer storage and priority control during active communication, thereby avoiding the delays that would result from signal buffering while maintaining effective traffic management capability.

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution allows for automatic setting of user device connections, reducing operational burdens and mistakes, maintaining optical signals, and significantly reducing delay compared to electrical signal processing.

Implementation Method 1

a detection unit that is connected to a user device and detects light which is output from the connected user device

Methodology Applied

Scientific EffectLight detection: Light

Data Source

PatentUS12615088B2Optical communication device, control method and optical communication system

Publication Date: 2026.04.28 NT T INC

AI summary

According to an aspect of the present invention, an optical communication device includes: a detection unit that is connected to a user device and detects light which is output from the connected user device; a connection unit that connects the user device and a control transceiver in a case where light is detected by the detection unit; an acquisition unit that acquires, via the control transceiver, communication destination information indicating a communication destination to which the user device requests connection; an assignment unit that assigns a wavelength to the user device according to the communication destination information acquired by the acquisition unit; and a notification unit that notifies the user device of wavelength information indicating the wavelength assigned by the assignment unit via the control transceiver.