Mobile network testing blog

Stories & insights

Mobile network testing

Author: Jens Berger

Stories by Jens Berger

Jens Berger is the full-time Senior Director Applied Research and has a strong interest in exploring the latest technologies and their performance. Jens has a Ph.D. in Electrical Engineering and defines test scenarios for R&S product lines as well as signal analysis and objective quality models for audio, video and data services and applicable scoring models. Berger holds several patents for testing and measurement procedures and leads the “Perceptual-based objective methods for voice and audio quality measurements in telecommunications services” group at ITU-T, actively supporting our international standardization efforts. In his posts, he delights in reproducing human perception as accurately as possible, scoring network performance and finding ways to ensure the best telecommunications experience for users.

Interactivity Test: ITU-T Recommendation G.1051 (part 8)

May 11, 2023 | by Jens Berger

Data transport latency has become an important factor in interactive and real-time usage of next generation mobile networks. Measuring latency under realistic traffic conditions and quantifying perceived interactivity are important building blocks in network performance evaluations. The new Recommendation ITU-T G.1051 uses Rohde & Schwarz latency measurements and interactivity tests as international standards.

Read more

Interactivity test: Dependency of packet latency on data rate (part 7)

January 26, 2023 | by Jens Berger

Data transport latency has become a very – if not the most – important factor in interactive and real-time use cases for next generation mobile networks. Latency is not a constant; it can vary over time but can also depend on data rate and packet stream characteristics. The following analyzes packet latency and its dependency on data rate and packet size in a few example mobile networks.

Read more

Interactivity test: Packet delay variation and packet loss (part 6)

October 17, 2022 | by Jens Berger

Data transport latency has become a very – if not the most – important factor in interactive and real-time use cases for next generation mobile networks. Real-time capability is not determined by the average latency at which the packets are delivered, but rather by the latency of the slowest packets. The following analyzes delay jitter and the packet loss in the uplink and downlink.

Read more

Interactivity test: Impact of changing network conditions on latency and jitter (part 5)

February 17, 2022 | by Jens Berger

Data transport latency has become a very – if not the most – important factor in interactive and real-time use cases for next-generation mobile networks. Real-time capability is not determined by how fast the packets are delivered but by which ones are received last. The following analyzes the distance data packets have to travel in mobile network channels when network conditions change.

Read more

Procedures for mobile network testing and efficient data collection

November 22, 2021 | by Jens Berger

How is network performance tested and rated? The answer to this question is essential to mobile network operators, mobile infrastructure vendors, regulators and authorities responsible for ensuring telecommunication services meet performance standards.

Read more

Interactivity test: Distance to server impact on latency and jitter (part 4)

September 28, 2021 | by Jens Berger

Data transport latency is a very – if not the most – important factor for interactive and real-time use cases in future mobile networks. Today the focus is often on maximizing bitrate and transport capacity for fast downloading, but future applications will require extremely low latency for real-time interactions.

Read more

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.

Read more

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.

Read more

Proofing and optimizing a network’s readiness for video transmission

February 23, 2017 | by Jens Berger

Examine how applying a video quality measure helps mobile network operators to optimize their networks. Learn about the challenges that operators face when quantifying video services as consumed by subscribers and discover how operators can benefit from the results of a video quality measure, i.e., a video test.

Read more

Evaluating visual quality and video MOS based on subjective perception

December 21, 2016 | by Jens Berger

How do you measure video quality as perceived by end users? The video’s actual visual quality is only one of many factors determining customer satisfaction with the service; other determiners include the service’s structure and the user’s experience and expectations. For real field video quality measurements, reference measurements are necessary.

Read more

Challenges of mobile video services for network operators

November 24, 2016 | by Jens Berger

Mobile video services demand by far the most significant chunk of data in today's mobile networks. Their performance has a considerable impact on customer satisfaction. Learn about the characteristics that drive user satisfaction and understand the key metric for video quality perceived by the end user.

Read more

Further authors

Stories by category

Benchmarking & optimization

More information

Field services & interference hunting

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

Request information

Do you have questions or need additional information? Simply fill out this form and we will get right back to you.

마케팅 동의

신청하신 내용이 제출되었습니다. 빠른 시일 내 회신 받으실 것입니다.
An error is occurred, please try it again later.