Central Office Auto-Configuration for Broadband Access Network Modules

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Solution Overview

Problem

In broadband access networks, the management of pluggable interface modules is complex and error-prone due to the need for vendor-verified modules, lacking auto-detection and verification capabilities, especially in software-defined networks where centralized auto-discovery and verification of module types are not possible.

Innovation Solution

A method that enables centralized auto-detection, verification, and activation of pluggable interface modules by transmitting a request message from line termination nodes to a control node, which verifies the module type against a database, allowing zero-touch activation and management of physical interface modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If vendor-verified modules are used with system-specific local port management, then system reliability is improved, but device complexity and ease of operation deteriorate due to complex manual administration and labor-intense processes

Engineering Contradiction:
Improvesystem reliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system enables self-service through automated module verification and activation. When a pluggable interface module is inserted, the line termination node automatically detects it and sends a request message to the control node. The control node verifies the module type against a database and automatically activates the module without requiring manual administrator intervention, thus maintaining reliability while dramatically improving ease of operation

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The control node performs preliminary verification of the pluggable interface module type against a database before activation. This preliminary action ensures that only compatible and approved modules are activated, maintaining system reliability while automating the process to improve ease of operation

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If arbitrary pluggable interface modules are used without verification, then adaptability is improved, but reliability deteriorates due to potential misuse of uncertified modules

Engineering Contradiction:
ImproveadaptabilityVSAvoidreliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The control node acts as an intermediary between the line termination node and the pluggable interface modules. It receives module information from the line termination node, verifies the module type against a database, and decides whether to activate the module. This intermediary verification process enables adaptability by accepting various module types while ensuring reliability through centralized verification

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements feedback through the verification process. The control node sends an acknowledgement message back to the line termination node indicating whether the module verification succeeded or failed. This feedback mechanism allows the system to adapt to different module types while maintaining reliability by rejecting uncertified or incompatible modules

Inventive Principle:
Principle #23Feedback

3Reliability

If manual administration and verification processes are used, then reliability is improved through careful verification, but productivity deteriorates due to labor-intense and error-prone processes

Engineering Contradiction:
Improveverification reliabilityVSAvoidproductivity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces manual mechanical administration processes with automated electronic verification. The control node automatically receives module information, verifies it against a database, and activates modules without human intervention. This substitution maintains verification reliability while dramatically improving productivity by eliminating labor-intense manual processes

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs self-verification automatically. When a module is plugged in, the line termination node automatically detects it and sends verification requests to the control node, which then automatically verifies and activates the module without requiring administrator time or effort, thus improving productivity while maintaining verification reliability

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3596882B1Method for auto-configuration within a broadband access network of a telecommunications network, telecommunications network, system, and control node of a central office point of delivery, program and computer program product
Publication Date: 2023.09.13 DEUTSCHE TELEKOM AG
  • EP3596882B1 patent drawingFigure 1~2
  • EP3596882B1 patent drawingFigure 3

AI summary

The invention relates to a method for an improved and simplified operation of a central office point of delivery and/or for an improved port discovery, verification and/or auto-configuration within a broadband access network of a telecommunications network, wherein the central office point of delivery comprises at least one control node and a plurality of line termination nodes, wherein each one of the plurality of line termination nodes comprises a certain number of access node ports, wherein each access node port of the plurality of line termination nodes is enabled to receive or to be connected to one of a plurality of pluggable interface modules, wherein, in order to provide for an improved port discovery, verification and/or auto-configuration within the broadband access network and/or within the central office point of delivery, the method comprises the following steps: - in a first step, a specific pluggable interface module is plugged into a specific access node port of a specific line termination node, - in a second step, subsequent to the first step, a request message is transmitted, by the specific line termination node, to the control node, wherein the request message comprises interface module information related to the specific pluggable interface module, and wherein an activation clearance is requested, by means of the request message, from the control node, - in a third step, subsequent to the second step, the specific line termination node receives, from the control node and in case that a verification operation and/or an activation clearance operation is successfully terminated, an acknowledgement message related to the activation clearance requested by the request message, - in a fourth step, subsequent to the second step, the specific pluggable interface module is activated by the specific line termination node and/or by its specific access node port.