ONU Migration Detection via Identification Comparison

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Solution Overview

Problem

Current Gigabit-capable Passive Optical Networks (GPON) and Time and Wavelength Division Multiplexed Passive Optical Networks (TWDM-PON) lack effective detection methods for Optical Network Unit (ONU) migration, leading to low accuracy and efficiency in engineering applications, often requiring manual judgment.

Innovation Solution

An ONU migration detection method that involves receiving and comparing first identification information from a historical position with second identification information from the current position, using an Optical Line Termination (OLT) to determine if migration has occurred, thereby improving detection accuracy and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual judgment is used for ONU migration detection, then the system can operate without complex detection mechanisms, but the accuracy and efficiency of migration detection are low

Engineering Contradiction:
Improvemigration detection accuracyVSAvoiddetection system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The ONU automatically sends its identification information to the OLT, and the OLT automatically compares this information with stored historical data to detect migration. This self-service mechanism eliminates the need for manual judgment while maintaining system simplicity, thereby improving detection accuracy without significantly increasing complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system establishes a feedback loop where the ONU reports its identification information to the OLT, which then compares it with historical records and determines whether migration has occurred. This automated feedback mechanism enables accurate and efficient migration detection while keeping the detection system relatively simple.

Inventive Principle:
Principle #23Feedback

2Productivity

If manual judgment is used for ONU migration detection, then the system structure remains simple, but the detection efficiency is low

Engineering Contradiction:
Improvedetection efficiencyVSAvoiddetection system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The ONU autonomously initiates the detection process by sending its identification information to the OLT, which then automatically performs comparison and migration determination. This self-service approach dramatically improves detection efficiency by eliminating manual intervention, while the automated processes remain integrated within existing system components, avoiding excessive complexity increase.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The OLT pre-stores historical identification information of ONUs, enabling rapid comparison when migration detection is needed. This preliminary preparation of data allows for efficient real-time detection without requiring complex real-time analysis systems, thereby improving productivity while maintaining relatively simple system structure.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If identification information comparison is implemented for ONU migration detection, then migration detection accuracy improves, but the system complexity increases

Engineering Contradiction:
Improveoperational reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The ONU automatically provides its identification information to the OLT, which then performs the comparison operation. This self-service mechanism ensures accurate migration detection for reliable operational status, while the automation of the process prevents the system complexity from increasing proportionally to the detection accuracy improvement.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses identification information (a digital copy or representation of the ONU's identity) rather than physically tracking the ONU itself. This copying approach enables accurate migration detection through simple data comparison, significantly improving reliability while adding minimal complexity to the system.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS12255688B2ONU migration detection method, OLT, ONU and storage medium
Publication Date: 2025.03.18 ZTE CORP
  • US12255688B2 patent drawing
  • US12255688B2 patent drawing
  • US12255688B2 patent drawing

AI summary

Disclosed are an ONU migration detection method, OLT, ONU and storage medium. The ONU migration detection method may include: receiving first identification information from an ONU, the first identification information is configured to uniquely identify a historical position accessed by the ONU; acquiring second identification information according to a current position of the ONU, the second identification information is configured to uniquely identify the current position; and comparing the first identification information with the second identification information, and determining that ONU migration occurs in response to the first identification information being mismatched with the second identification information.