Passive Wavelength Division Failure Detection from Optical Port Alarms

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Solution Overview

Problem

Existing wireless network management systems cannot accurately identify failures in passive wavelength division equipment, which are crucial for 5G network connectivity, leading to inefficiencies in maintenance and increased downtime.

Innovation Solution

A method and apparatus for detecting passive wavelength division equipment failures by dividing base station equipment into groups based on connection relationships, utilizing optical port and link disconnection alarm information to determine failed equipment, and employing a server with a processor and memory to execute these methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If passive wavelength division equipment is used to reduce optical fiber quantity, then the number of optical fibers is greatly reduced, but failure detection capability is lost

Engineering Contradiction:
Improvenumber of optical fibersVSAvoidfailure detection capability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent implements feedback by collecting alarm information from optical ports of first side equipment and second side equipment, and using this feedback to determine whether passive wavelength division equipment has failed. The system continuously monitors alarm information and feeds it back to the determination module, enabling reliable failure detection despite the passive nature of the equipment.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary detection system that includes a determination module and alarm information collection module. This intermediary system acts as a mediator between the passive wavelength division equipment and the network management system, enabling failure detection without requiring the passive equipment itself to have active detection capabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If passive wavelength division equipment is used for network modification, then modification cost is reduced, but maintenance efficiency deteriorates

Engineering Contradiction:
Improvenetwork modification costVSAvoidmaintenance efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The system uses feedback from alarm information to automatically determine equipment failures, eliminating the need for manual inspection and significantly improving maintenance efficiency. The feedback mechanism enables rapid identification of failed equipment, allowing maintenance teams to respond quickly and restore service.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system implements self-service by automatically collecting alarm information, determining failures, and generating maintenance alerts without human intervention. The determination module autonomously processes alarm information and identifies failed passive wavelength division equipment, reducing maintenance workload and improving efficiency.

Inventive Principle:
Principle #25Self-service

3Device complexity

If alarm information is only collected from active equipment, then equipment complexity is reduced, but measurement precision deteriorates

Engineering Contradiction:
Improvealarm collection system complexityVSAvoidfailure identification accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The alarm information collection module is designed with universality to collect alarm information from both active equipment (first side equipment and second side equipment with transmission functions) and passive equipment (passive wavelength division equipment). This multi-functional approach enables comprehensive failure detection across all equipment types without significantly increasing system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The determination module acts as an intermediary that processes alarm information from multiple sources and synthesizes it to accurately identify failures in passive equipment. This intermediary system bridges the gap between simple alarm collection and precise failure identification, achieving high measurement precision through logical processing rather than complex sensing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12567905B2Method and apparatus for detecting failure of passive wavelength division equipment, server, and storage medium
Publication Date: 2026.03.03 ZTE CORP
  • US12567905B2 patent drawing
  • US12567905B2 patent drawing
  • US12567905B2 patent drawing

AI summary

A method for detecting failure of passive wavelength division equipment includes: determining whether base station equipment is pre-modeled; when the base station equipment is not pre-modeled, dividing the first side equipment and the second side equipment in the base station equipment into a plurality of equipment groups; obtaining optical port alarm information of the first side equipment in the base station equipment and/or optical port alarm information of the second side equipment in the base station equipment, or obtaining link disconnection alarm information of the second side equipment in the base station equipment; when no link disconnection alarm information of the second side equipment is obtained, and it is determined, according to the optical port alarm information, that there is an equipment group satisfying a first preset condition, determining that the passive wavelength division equipment corresponding to the equipment group satisfying the first preset condition fails.