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Márcio Pereira Márcio Pereira Written by Márcio Pereira, Research Engineer, Celfinet (Cyient)
on 10 Oct 2023

In today's hyper-connected world, seamless wireless network operations are imperative for businesses and individuals. Behind the scenes, alarm management systems play a pivotal role in ensuring that mobile networks function smoothly, minimizing disruptions, and upholding the quality of service (QoS) and quality of experience (QoE) of end users. However, the current reactive approach to managing network alarms, where issues are addressed after they impact the network, is no longer sufficient.

The integration of machine learning (ML) technology in mobile network operations is ushering in a new era of proactive and preventive maintenance, promising to revolutionize how we manage network disruptions and enhance overall performance.

Alarm management

In the current framework, alarm management solutions are designed to detect and respond to network issues based on predefined rules and conditions set by engineers. These systems receive events from network elements (NEs), which are then converted into alarms. Unfortunately, this reactive approach means that alarms are triggered only when problems have already occurred, affecting network operations and QoS/QoE.

The traditional fault management (FM) paradigm involves diagnosing issues, mitigating damage, and resolving the problem. While fairly effective,  it doesn't address the growing demand for uninterrupted and high-quality network services.

Being proactive with machine learning

Modern challenges require innovative solutions, and that's where ML steps in. By harnessing the power of ML, network operators can transition from a reactive stance to a proactive and preventive one. When applied to operational data, ML algorithms offer the ability to predict future network problems before they cause disruptions. This revolutionary shift enables the creation of new processes that prevent performance degradation, transforming the traditional FM pipeline into an advanced sequence of diagnoses followed by preventive actions.

Smart predictive fault management 

At the forefront of this evolution is the concept of smart predictive fault management (SPFM). This innovative approach seeks to provide a solution for the preventive maintenance of mobile network alarms, as detailed in the conference paper “A Fault Management Preventive Maintenance Approach in Mobile Networks using Sequential Pattern Mining”. Its primary objectives encompass several essential aspects:

  1. Alarms clustering and association: SPFM mines clusters of alarms and establishes relationships between them, forming association rules. This allows a deeper understanding of how alarms interrelate and contribute to network issues.
  2. Continuous learning and improvement: SPFM continuously learns from new data and evolves over time. This iterative process helps build expertise in the network maintenance domain, enhancing the system's ability to predict and prevent issues.
  3. Sequential alarm patterns: SPFM defines antecedent and consequent alarms in a sequential pattern, chronologically sorting them. This temporal context aids in identifying the order in which alarms appear and understanding their potential impact.
  4. Identifying concerning faults: By recognizing the most frequent patterns, SPFM can pinpoint the most critical faults. This empowers network operators to focus on preventing the issues that could have the most substantial impact on network performance.

Advantages of preventive maintenance

The transition from reactive to preventive maintenance offers numerous advantages to network operations:

  1. Minimized service disruptions: Anticipating issues before they occur means less downtime and service disruptions, leading to improved QoS and QoE for end users.
  2. Efficient resource allocation: Preventive actions enable better allocation of resources, as operators can proactively address potential problems, reducing the need for emergency interventions.
  3. Enhanced customer satisfaction: With fewer network interruptions, customers experience higher satisfaction due to consistently reliable services.
  4. Cost savings: Addressing issues proactively reduces the costs associated with emergency repairs and network downtime.

Seamless digital experience

As technology evolves, so must network management approaches. The traditional reactive approach is no longer sufficient in our fast-paced digital landscape.

Smart predictive fault management, driven by machine learning techniques, offers a transformative solution. By predicting and preventing network issues before they escalate, SPFM holds the promise of significantly improving network performance, reducing disruptions, and ultimately delivering a more seamless digital experience for everyone.

Going forward, it's clear that the convergence of technology and innovation will shape the future of network operations, enabling users to stay connected like never before.

 

About the Author

Márcio Pereira is a research engineer at Celfinet, a Cyient company. He received his MSc degree in electronics and telecommunications engineering from the Instituto Superior de Engenharia de Lisboa (ISEL) in 2022. His work is focused on fault management and predictive maintenance, and his interests lean toward mobile networks, machine learning, and data science.

 

Support information

The hyperlink for the conference paper “A Fault Management Preventive Maintenance Approach in Mobile Networks using Sequential Pattern Mining” presented at the 19th International Conference on Wireless Networks and Mobile Systems (WINSYS) is: https://dx.doi.org/10.5220/0011308100003286

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