Telecommunication Network Maintenance Coordination via Decentralized Signaling

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Solution Overview

Problem

Telecommunication networks face reduced coverage and radio traffic disturbances during maintenance activities, as existing solutions lack control over the order and timing of maintenance tasks, leading to suboptimal network performance.

Innovation Solution

A decentralized method where network units, such as radio base stations, coordinate maintenance activities by informing neighbors of intended maintenance, allowing only one unit to be out of service at a time, with mechanisms to handle message collisions and failures, ensuring seamless traffic handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If network units perform maintenance activities simultaneously, then maintenance can be performed efficiently, but network coverage is reduced and radio traffic disturbances increase

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidnetwork coverage
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

Network units perform preliminary actions by exchanging maintenance indication messages and acceptance messages before actually performing maintenance. This allows neighboring units to be informed in advance and postpone their own maintenance activities, ensuring that only one unit is out of service at a time while maintaining coordination efficiency

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where network units send maintenance indication messages to neighbors, receive acceptance messages, and later send maintenance completed messages. This feedback loop ensures coordinated maintenance activities that minimize network disruption while maintaining productivity

Inventive Principle:
Principle #23Feedback

2Ease of repair

If network units are taken out of service for maintenance, then software maintenance and upgrades can be performed, but service range and service quality are reduced

Engineering Contradiction:
Improvesoftware maintenance capabilityVSAvoidservice range
Core Design Contradiction:
Ease of repairVSArea of stationary object

Solution Approach 1:

The maintenance process is segmented into distinct phases: maintenance indication message exchange, acceptance message confirmation, maintenance execution, and maintenance completed notification. This segmentation allows maintenance activities to be performed in an organized manner that minimizes impact on service range and quality

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Network units perform self-service by autonomously managing their own maintenance activities and coordinating with neighbors through standardized messages. This self-service capability allows maintenance to be performed without extensive external intervention while minimizing service disruption

Inventive Principle:
Principle #25Self-service

3Reliability

If maintenance activities are planned and coordinated centrally, then network performance can be maintained, but network complexity and operational overhead increase

Engineering Contradiction:
Improvenetwork performanceVSAvoidmaintenance coordination complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Each network unit autonomously manages its own maintenance activities by sending maintenance indication messages to neighbors and processing acceptance messages locally. This distributed self-service approach eliminates the need for complex central coordination while maintaining network performance through localized decision-making

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Standardized maintenance messages act as intermediaries between network units, enabling coordinated maintenance activities without requiring complex direct communication protocols. These message-based intermediaries simplify the coordination process while maintaining network performance

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2454903B1Method and arrangement in a telecommunication system
Publication Date: 2018.05.02 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP2454903B1 patent drawingFigure 1
  • EP2454903B1 patent drawingFigure 2a~2d
  • EP2454903B1 patent drawingFigure 3

AI summary

The present invention relates to a method and arrangement in a telecommunication system, in particular to methods and arrangements for supporting maintenance activities of units in a telecommunication network.