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By | July 31, 2019 | 369 views
 

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

Isn’t it fascinating? A new technology is making its way to the field. 5G NR rollouts are popping up all over the world. New bands (cmWave and mmWave), beamforming, ultra-low latency, higher data rates, ultra-reliability and so much more. 5G NR opens the door to a completely new range of applications and services! From an interference-hunting point of view, what…

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By | July 3, 2019 | 765 views
 

Impressions from managed services team benchmarking Africa

We have extended our traditional business focus from supplying mobile network testing solutions to being a fully-fledged managed services provider of benchmarking campaigns. In April 2018, Rohde & Schwarz created the managed services team to run large-scale benchmarking projects such as the one commissioned by the South African MTN Group. Besides figuring out logistics, infrastructure, topography and climate, the team…

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By | May 22, 2019 | 958 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 | 979 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 | 772 views
 

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

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 | 808 views
 

Testing 5G QoE: Defining and measuring 5G QoE test cases (part 2/3)

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 | 985 views
 

Testing 5G QoE: Use cases, services and a new QoE paradigm (part 1/3)

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 | 999 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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By | February 6, 2019 | 1,324 views
 

Spectrum clearance: Prepare your 5G NR spectrum for deployment

RF interference is one of the largest contributors to poor network performance. It manifests itself in dropped calls and low data throughput rates. When you invest in new bands to improve network performance and then get less than 50% of the expected performance improvement, it is time to tackle the problem head on. In LTE, for every 10 dB less…

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