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Mobile network testing

Category: Innovations in mobile network testing

Machine learning: Time-based anomaly detection (part 3)

March 17, 2020 | by Miguel Román

Data scientists love anomaly detection as anomalous samples provide valuable insight that often correlates with defects or errors in the data collection process. This blog post demonstrates how we leverage neural networks to build a time-based anomaly detector, featured in SmartAnalytics, for mobile network testing use cases.

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Network measurements with drones: The next step to a connected sky

October 17, 2019 | by Pak Lun Lam

In the era of IoT, one of the most urgently discussed topics concerns the deployment of drones to automate commercial applications such as mail delivery or aerial taxis. This post examines the results of LTE network measurements conducted with drones to offer insights into coverage, throughput, and latency at flight altitude.

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NB-IoT field test: Measuring NB-IoT underground

May 22, 2019 | by Albert Huang

What are the necessary steps to measure NB-IoT coverage accurately and reliably? In this field test, we buried an NB-IoT device 20 cm underground before making coverage measurements. Learn more about the test setup and procedure, as well as the impact of soil on coverage.

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Machine learning use case: Call Stability Score (part 2)

May 2, 2019 | by Miguel Román

The machine learning-based Call Stability Score (CSS) in SmartAnalytics benefits operators by removing one of the main chance factors in benchmarking campaigns. The CSS rates each call for its stability based on high-dimensional datasets that cover hundreds of thousands of good and bad calls.

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

April 10, 2019 | 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.

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

April 3, 2019 | by Jeremy Carpenter

Without knowing the underlying service and device requirements, network quality engineers do not know what aspects and metrics to treat as important KPIs. How do you define and set up quality of experience (QoE) test cases for new “user” experiences such as for sensors in an industrial IoT deployment?

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

March 28, 2019 | by Jeremy Carpenter

5G demands a new paradigm for measuring the quality of experience (QoE), particularly for mMTC and URLLC use cases, as QoE has a different meaning in machine-type communication. Explore how the emergence of 5G and the new cases and services it brings demand new network measuring approaches.

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NB-IoT: How to find NB-IoT carriers in the spectrum (part 6)

November 21, 2018 | by Gregor Tomic

NB-IoT carriers are very difficult, if not impossible, to find. The Automatic Channel Detection (ACD) feature in R&S®ROMES4 does the job automatically. But, what makes finding and identifying NB-IoT carriers so difficult in the first place? And, what implementation modes are there, and how do they differ from one another?

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Machine learning in mobile network testing (part 1)

November 7, 2018 | by Miguel Román

Telecom leaders believe that machine learning (ML) will be key to deriving and inferring user behavior and expectations. This blog series demonstrates our ML applications on drive test data by discussing specific use cases and customer benefits. To start, we will discuss artificial intelligence in general.

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

September 12, 2018 | by Arnd Sibila

The first 5G standard, specified in the 3GPP Release 15, contains a high degree of flexibility in radio parameters that complicates network measurements. We conducted measurements in pre-commercial 5G trial networks with our commercially available 5G NR network measurement solution and gained early insights into performance, capabilities, and frequency band.

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

August 29, 2018 | by Arnd Sibila

US-based Signals Research Group (SRG) trusts the prototype measurement system designed by Rohde & Schwarz to meet the aggressive timeline of early 5G adopters. Learn about SRG’s findings in the first independent 5G test network benchmark study using the R&S®TSMA autonomous drive test scanner to collect valuable downlink performance metrics.

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NB-IoT network insights through MIB/SIB demodulation (part 5)

August 10, 2018 | by Andreas Spachtholz

NB-IoT networks are designed for machine-to-machine communication, which generally requires low data rates. When building NB-IoT networks, it is essential to test the performance of new implementations to ensure the required network quality. Quality of service (QoS) tests are typically performed with NB-IoT modules that are controlled by software.

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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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