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By | March 17, 2020 | 905 views

Machine learning: Time-based anomaly detection (part 3)

Anomaly detection is a much-appreciated tool by data scientists. It aims to find data samples that do not conform to the regular distribution of the dataset to which they belong. Finding anomalous samples, also known as distribution outliers, provides valuable insight that often correlates with defects or errors in the data collection process (e.g., faulty or misconfigured equipment). This blog…

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By | November 19, 2019 | 2,508 views

5G site testing and troubleshooting

Commercial 5G rollout is happening, and the rate of deployment of 5G non-standalone (NSA) sites is increasing every day. Each new installation needs to be commissioned and verified to ensure correct network performance and quality of service (QoS) delivered to end users over the 5G network. 5G site testing requires specialist mobile network testing solutions that meet the testing demands…

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By | October 17, 2019 | 3,096 views

Network measurements with drones: The next step to a connected sky

In the era of Internet of Things (IoT), one of the most urgently discussed topics concerns the deployment of Unmanned Aerial Vehicles (UAVs) to automate different commercial applications, ranging from simple mail delivery to offshore islands to more sophisticated aerial taxis. This blog post shows the results of mobile network measurements conducted with drones, which serve as the basis for…

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By | May 22, 2019 | 3,694 views

NB-IoT field test: Measuring NB-IoT underground

Singapore was among the first countries to deploy a nationwide narrowband Internet of Things (NB-IoT) network in 2018. In this blog post, we will share an NB-IoT field test procedure, including the results from NB-IoT measurements underground. “The Internet of Things is a key technology area for growth which will drive Singapore’s Digital Economy for a Smart Nation. We encourage…

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By | May 2, 2019 | 3,091 views

Machine learning use case: Call Stability Score (part 2)

In our previous post about machine learning (ML), we introduced the topic of artificial intelligence (AI) and hinted at the typical deep learning pipeline that is needed to apply ML on data collected with mobile network testing solutions from Rohde & Schwarz. In this post, we will demonstrate how we can leverage ML to extract more value out of the…

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By | April 10, 2019 | 2,350 views

Testing 5G QoE: The role of standardization organizations (part 3)

The previous parts of this blog series drew the conclusion that the critical nature of some applications demands that solutions for testing 5G QoE must be independent, transparent and traceable to certified international standards and not aligned to proprietary techniques or individual network equipment vendors. The more one considers the mission-critical applications arising from 5G cases, the more it reinforces…

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By | April 3, 2019 | 2,067 views

Testing 5G QoE: Defining and measuring 5G QoE test cases (part 2)

In part one of this blog series, we established that an expanded test methodology with new test cases is required to characterize the quality of experience (QoE) of 5G networks. Let’s now take a closer look at how to define and set up QoE test cases for these new “user” experiences. First, we need to understand the requirements of the…

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By | March 28, 2019 | 2,485 views

Testing 5G QoE: Use cases, services and a new QoE paradigm (part 1)

Visibility of subscribers’ quality of experience is something operators have sought to measure since the early days of mobile networks. In this three-part blog series, we consider the emergence of 5G, the new use cases and services it brings, and the necessity to rethink the approach to measuring network performance and the quality of experience (QoE) of 5G networks. From…

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By | March 6, 2019 | 1,556 views

Webinar report: 5G NR network deployment is now – let’s test!

With 5G NR network rollout clearly on the horizon, network operators worldwide are planning pre-commercial network trials. The target is to overcome the challenge of a more demanding and complex air interface and deliver the commercial and technical benefits offered by 5G. In recent posts about 5G network measurements, we discussed the challenges of and the test solutions for some…

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