Mobile network testing blog

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Mobile network testing

Author: Manuel Mielke

Stories by Manuel Mielke

Manuel Mielke discovered his passion for radio receivers while sitting in a Vodafone drive test van for several months, running network scans with scanners from Rohde & Schwarz. This was during his studies at the University of Applied Sciences in Regensburg, Germany. Today – an electrical engineering degree with a major in wireless communications and a stint at antenna specialist Kathrein later – Manuel finds himself “driving” the R&S scanners: as Product Manager Drive Test Scanners, he defines and shapes their specifications to help customers introduce new radio network technologies and features quickly and efficiently.

Understanding and troubleshooting interference in 5G NR networks

July 22, 2021 | by Manuel Mielke

Interference is a complicated topic with manifold root causes and impacts on network performance. So, let's try to simplify the topic of interference by giving it some structure. In our last blog posts about network synchronization we learned a lot about internal interference, which comes from the network itself e.g. due to a lack of time synchronization. Now let's take a look at the second type of interference. It is called external interference.

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Network synchronization in the time domain (part 2)

March 5, 2021 | by Manuel Mielke

Network operators have to make sure that synchronizing their networks will not produce any interference. Synchronization can affect several levels, these include synchronization on a relative time base, which was part of the blog post part 1 and extend to synchronization on an absolute time raster. Why? You can read all about it in part 2 of our blog post.

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Network synchronization in the time domain (part 1)

January 14, 2021 | by Manuel Mielke

Network synchronization requirements are as old as digital cellular mobile networks. As soon as cells have a neighbor relationship, network synchronization is mandatory in both the frequency and time domain. How does 5G NR with its extremely flexible specifications affect these synchronization requirements, and how can they be measured?

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Code-selective electromagnetic field (EMF) measurements (part 2)

August 18, 2020 | by Manuel Mielke

In part 1 of this article series about the electromagnetic field (EMF) measurements procedures, we explained the different measurement concepts, namely the code-selective and frequency-selective method. Now, learn how the code-selective EMF method offers mobile operators and infrastructure suppliers the best trade-off between EMF exposure limits and optimized coverage and capacity.

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Electromagnetic field measurements in 5G: Overview and concepts

May 20, 2020 | by Manuel Mielke

Why are electromagnetic field (EMF) measurements critical for the widespread rollout of 5G NR, and how do you measure electromagnetic radiation? Learn more about the two fundamentally different EMF measurement procedures – frequency-selective versus code-selective – and the arguments in favor of the latter.

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NB-IoT: Scanners are a must for coverage measurements (part 2)

July 20, 2017 | by Manuel Mielke

In a previous article, we described typical use cases of the Internet of Things (IoT). We identified that networks for IoT applications would be optimized for the highest availability, particularly for applications under extreme receive conditions such as smart meters. Learn here how scanners help to master the coverage challenge.

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New e-book provides unparalleled insight into the 5G NR world

What's the status of 5G NR? What are the test and measurement requirements, and how do we approach them? Download our new e-book now and get unparalleled insight into the world of 5G NR.

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The world's first 5G NR network measurement solution

Rohde & Schwarz is pioneering 5G New Radio (5G NR) network measurements with the world's first commercially available 5G NR network measurement solution. This solution enables users in the 5G network ecosystem as well as regulators to measure the 5G NR network coverage accurately - one of the biggest challenges in the network planning.

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Pioneers in NB-IoT field measurements

We are paving the way to NB-IoT by provding the world's first accurate LTE/NB-IoT coverage measurement solution: via a software upgrade, the R&S ROMES drive test software now also supports NB-IoT coverage measurements with R&S TSMx scanners.

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