Mobile network testing blog

Stories & insights

Mobile network testing

Category: Field services & interference hunting

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.

Read more

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?

Read more

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.

Read more

Electromagnetic field measurements in 5G: Overview and concepts (part 1)

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.

Read more

5G site testing and troubleshooting

November 19, 2019 | by Peter Busch

Commercial 5G rollout is happening, and the rate of deployment of 5G non-standalone (NSA) sites steadily increases. Each new installation needs to be verified to ensure correct network performance and quality of service. 5G site testing requires specialist mobile network testing solutions that meet the RAN architecture’s new demands, including over-the-air connectivity and KPIs.

Read more

Are you having trouble spotting interference in your 5G NR TDD network?

July 31, 2019 | by Yunuen Wagner

5G opens the door to a completely new range of applications and services. From an interference-hunting point of view, what are the implications of 5G? What are the particular challenges when hunting interference in 5G TDD networks? And how do you separate the UL and DL slots on your device’s display?

Read more

Spectrum clearance: Prepare your 5G NR spectrum for deployment

February 6, 2019 | by Peter Busch

RF interference is one of the largest contributors to poor network performance, manifesting itself in dropped calls and low data throughput rates. Explore how to prepare your spectrum for 5G deployment by starting RF interference hunting and spectral clearance in LTE networks with a more automated approach.

Read more

Interference hunting in cities: Choose angle of arrival over power

October 24, 2018 | by Jeremy Carpenter

The urban RF environment is very demanding – densely packed with a myriad of cellular and non-cellular transmitters, interfering emitters, and inconveniently located building. This post explains why it pays to focus on the angle of arrival (AOA) method regarding speed, accuracy, and effectiveness when hunting interference in urban areas.

Read more

Interference hunting: The real meaning of automatic direction finding

November 13, 2017 | by Yunuen Wagner

The need for interference hunting in mobile networks is steadily increasing. And field engineers often ask us which tool we would recommend in order to be successful in the field. With decades of expertise, what we can say for sure is that it depends: the right tool for successful field service operations depends on the source of interference. Sources are manifold, but with the most suitable tool, they are easy to locate.

Read more

PIM testing: Best practices in a nutshell

August 3, 2017 | by Yunuen Wagner

When it comes to PIM testing, the necessary steps to identify passive intermodulation (PIM) and locate its source are similar to interference hunting. In the end, PIM is an internal source of interference and can have a significant impact on network performance.

Read more

Identifying passive intermodulation

January 12, 2017 | by Yunuen Wagner

How does passive intermodulation differ from external interference? This article examines the differences and sheds some light on best practices that help field engineers to distinguish one from the other easily. As switching the site off is not always feasible, could the TX power be varied?

Read more

Suspecting PIM issues in your network? Let us help you find the root cause

December 18, 2016 | by Yunuen Wagner

More subscribers and higher data rates translate into a constant strain on networks, no matter where. But what could have happened when technicians are notified of low performance yet cannot find any defective components at the BTS site? The answer may be passive intermodulation or PIM.

Read more

Stories by category

Benchmarking & optimization

More information

Innovations in mobile network testing

More information

Testing from RF to QoE

More information

Subscribe MNT blog

Sign up for our newsletter

Stay up to date and get stories and insights with our frequent mobile network testing newsletter.

Further information

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.

More information

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.

More information

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.

More information

Запросить информацию

У вас есть вопросы или вам нужна дополнительная информация? Просто заполните эту форму, и мы свяжемся с вами в ближайшее время..

Ваш запрос отправлен. Мы свяжемся с вами в ближайшее время.
An error is occurred, please try it again later.