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Mobile network testing

Author: Johanna Sochos

Stories by Johanna Sochos

An expert with over 12 years of experience in signal processing and algorithm development, Johanna Sochos enjoys the analysis of large amounts of complex data and the design of smart algorithms to retrieve and analyze data. She is fascinated by the creation of models that reflect the network quality as perceived by humans. With a master’s degree in physics, the Senior Research Engineer is responsible for the specification of requirements for application and data tests. In her blog posts, Johanna Sochos examines just that – the design and evaluation of data and app tests.

Interactivity test: Examples from real 5G networks (part 3)

June 10, 2020 | by Johanna Sochos

After discussing the shift of focus in QoE measurements in 5G networks, introducing the concept of interactivity, and explaining our test approach, we will conclude this series with measurement examples from real networks, including 5G. Learn about the interactivity test in action and discover test results from different field measurements.

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Interactivity test: Concept and KPIs (part 2)

April 30, 2020 | by Johanna Sochos

The interactivity of a network is the measurable continuity and latency of a given bit rate. How do you measure interactivity in practice? What are the realistic traffic patterns? And, how do you define a QoE model for real-time applications like eGaming? Learn about it here.

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Interactivity test: QoS/QoE measurements in 5G (part 1)

April 14, 2020 | by Johanna Sochos

5G is more than just more data rate. The new technology’s scalable network slices, supporting transport requirements for critical applications, can be tuned for extremely short latencies. This will lead to the introduction of new user classes, such as industry or automotive, whose network demands differ from those of humans.

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Network Performance Score: How to conduct NPS benchmarking campaigns

February 19, 2020 | by Johanna Sochos

The Network Performance Score (NPS) reflects the perceived technical performance of a mobile network or one of its subsets such as region, period, or technology. What needs to be planned and prepared to conduct NPS benchmarking campaigns that yield representative results that can lead to real insights into network quality?

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Measuring QoE of mobile data apps for network optimization (part 3)

March 19, 2018 | by Johanna Sochos

In previous posts, we explained how you can assess the QoE of data applications on smartphones by measuring the success rate and duration of a series of actions. Now, learn how mobile app testing supports operators in their endeavors to optimize networks for mobile data applications and other third-party content.

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Measuring QoE of mobile data applications: Behind the scenes (part 2)

March 1, 2018 | by Johanna Sochos

We explained how to measure the QoE of mobile data applications on smartphones using the success rate and duration of a series of actions. But what are the reasons for saturation at higher network speeds? And, what influences the measurement results of mobile applications such as Facebook and Dropbox?

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Measuring QoE of mobile data applications, e.g. Facebook (part 1)

February 22, 2018 | by Johanna Sochos

There is a myriad of smartphone applications available, covering almost any use case one can imagine. Network providers want to ensure that their mobile connection offers everyone a smooth usage experience, especially for the most popular apps such as Facebook. To do this, they need tests targeting mobile data applications.

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