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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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Measurement examples of live 5G mobile networks that support DSS (part 4)

July 5, 2021 | by Andreas Roessler

The last dynamic spectrum sharing (DSS) blog post examined the test and measurement methodologies for testing 4G Long Term Evolution (LTE) and 5G New Radio (NR) networks that support DSS. The fourth and final post discusses live measurements from mobile networks that support 4G LTE and 5G NR coexistence in the same frequency band.

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4K mobile video as a gateway into new services

May 27, 2021 | by Jens Berger

Rohde & Schwarz MNT has implemented YouTube 4K video testing for new video services. Networks are ready to transmit 4K video, smartphones can process it and video apps are streaming it. The next logical step is to test mobile 4K video streaming from YouTube, the internet’s most popular mobile video streaming service.

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Network tests pave the way for smart factories

May 23, 20201 | by Arnd Sibila

5G has everything future smart factories need for wireless connectivity, but network tests are essential to make setting up and operating these networks easy and reliable.

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End-user quality of experience (QoE) 5G network evaluation for three major US network operators

March 31, 2021 | by Jens Berger

The independent wireless industry research experts at Signals Research Group (SRG) worked with Rohde & Schwarz MNT on a 5G network quality benchmarking study in the Dallas area, a major U.S. telecommunications hub, comparing the performance of three tier-1 US network operators.

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DSS: Measurement aspects of testing LTE and 5G networks (part 3)

March 24, 2021 | by Andreas Roessler

After examining the technological background of dynamic spectrum sharing (DSS) and how it enables 4G LTE and 5G New Radio coexistence in part 1 and 2 of this article, we will now discuss the test and measurement aspects for mobile networks that support DSS.

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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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Smart factories: Network testing is essential to ensure quality and performance (part 2)

November 23, 2020 | by Arnd Sibila

Factory owners who have successfully applied for 5G spectrum dedicated to private or campus networks need to ensure that their mobile network’s critical KPIs are met, namely reliability and latency. This article discusses the different test phases to provide high-quality smart factory deployments while verifying and monitoring quality and performance.

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DSS: Enabling 5G NR in standard LTE subframes (part 2)

November 12, 2020 | by Andreas Roessler

After discussing the need for dynamic spectrum sharing (DSS) and 5G NR transmission in LTE MBSFN subframes in part 1 of this article series, we will now examine the challenges in enabling 5G NR in standard LTE subframes and introduce the solution defined by the 5G NR standard.

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DSS: 5G NR-LTE coexistence through dynamic spectrum sharing (part 1)

October 13, 2020 | by Andreas Roessler

In part 1 of our series about 5G NR-LTE coexistence through dynamic spectrum sharing (DSS), we will take a closer look at DSS’s technological background. We will examine the feature sets that enable DSS and how the technology component is embedded in the LTE and 5G network architecture.

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Smart factories: Mobile network characteristics and main KPIs (part 1)

September 17, 2020 | by Arnd Sibila

The 3GPP Release 16, heavily influenced by the automotive and connected industries, is expected to offer significant improvements in latency reduction, network synchronization, and 5G integration. Let’s examine how these developments will make 5G a suitable technology for fulfilling smart factory requirements and how testing network reliability meets factory owners’ operational and security needs.

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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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