Author: Arnd Sibila

“I see myself as a technical consultant”, says Arnd Sibila, Technology Marketing Manager. With a master’s degree in electrical engineering and more than 25 years of experience in the wireless communication industry, he is passionate about sharing his expertise on all radio-related technology topics from 2G to 5G to the latest applications, for example, video streaming. Arnd thrives on engagement. Holding seminars, leading trainings, or giving presentations, Arnd always finds himself deep in discussion with customers. He’s eager to understand their challenges and offer advice and solutions to get more value out of a network.

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 | January 17, 2019 | 1,545 views
 

Network Performance Score: initiate improvements with a QoE-centric score

There are various scores, as in scoring methods, claiming to measure the performance of mobile networks on the market. Some scores are based on plain technical metrics, others on quality of experience (QoE) measurements or surveys. Which score should a mobile network operator (MNO) choose? The one providing the highest score? The cheapest one? The one based on technical scores…

 
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By | December 19, 2018 | 865 views
 

Quality of experience: are you really taking care of it in your mobile network?

Quality of experience (QoE) is crucial for the success of mobile network operators because subscribers are increasingly sensitive to the perceived quality of applications in mobile networks. Operators will only grow their subscriber base if they can lure subscribers from competing operators by offering a better perceived QoE. In a recent webinar, we provocatively asked the question “Are you really…

 
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By | September 12, 2018 | 2,531 views
 

5G NR network rollout is now – let’s test! (part 4)

3GPP Release 15 specifies the initial 5G standardization framework of the radio access network called 5G New Radio (5G NR). The standard contains a high degree of flexibility in radio parameters, which complicates network measurements. However, Rohde & Schwarz has already conducted measurements in pre-commercial 5G NR trial networks with our commercially available 5G NR network measurement solution. We gained…

 
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By | August 29, 2018 | 1,963 views
 

5G: first independent 5G test network benchmark study (part 3)

Signals Research Group trusts the prototype measurement system designed by Rohde & Schwarz to meet the aggressive timeline of early 5G adopters. The US-based research consultancy used the R&S®TSMA autonomous drive test scanner for their independent 5G test network benchmark study to collect downlink performance metrics for the Beam Reference Signals (BRS), including RSRP, CINR, RSRQ, PCI, etc., of 28 GHz…

 
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By | June 12, 2018 | 2,476 views
 

5G: initial 5GTF coverage measurements (part 2)

The US operator Verizon Wireless targets fixed wireless access (FWA) in the 28 GHz frequency band. With partners, they created a pre-5G specification called 5G Technical Forum (5GTF). The business case depends on the number of households that can be connected to a certain number of base stations and still provide a suitably high data throughput. For the required signal…

 
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By | May 22, 2018 | 2,015 views
 

5G: the role of mobile network testing on the path to 5G (part 1)

Everyone is talking about 5G. Long before commercial 5G services are even available, a myriad of articles, reports, presentations and speeches have been made public – creating a big buzz and high expectations in the new standard. What’s the role of mobile network testing on the path to 5G? How can scanner measurements help operators pave the way to the…

 
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By | June 22, 2017 | 4,571 views
 

NB-IoT: Overview of Internet of Things with a focus on NB-IoT (part 1)

Use cases for the Internet of Things (IoT) are virtually unlimited. They include smart homes and buildings, wearables and smart fabrics, healthcare, telematics, smart cities, smart factories, and so on. This post provides an overview of current technologies with a focus on IoT developments made by the 3rd Generation Partnership Project (3GPP).  When it comes to mobile network testing in…

 
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By | April 20, 2017 | 1,800 views
 

Smart macro network enhancements: higher-order sectorization

The various macro network enhancements available today offer a cost-efficient and smart approach to increase the capacity in mobile networks. In the previous 3 parts of this series, we discussed the two hardware-related capacity-enhancing features carrier aggregation and 4×4 MIMO, and we covered antenna tilt optimization. The final part of this series looks at yet another antenna approach to optimize…

 
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