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This application note provides a brief introduction into the capabilities of the Rohde & Schwarz Vector Signal Generators (VSG) to create user defined digitally modulated signals called Custom Digital Modulation (CDM).

24-Jul-2017 | AN-No. 1GP96

automotive radar precision solutions applications

06-Jul-2022

At the recent i14y Lab Summit 2022 in Berlin, Rohde & Schwarz has showcased as one of the lab’s partners its proven and powerful measurement instruments used to verify the conformance of O-RAN Radio Units and the end-to-end network performance. Led by Deutsche Telekom, the i14y Lab is an industry consortium aimed at accelerating network disaggregation and Open RAN by building a European and German ecosystem of vendors and system integrators. Through early stage collaboration with open lab partners and customers, Rohde & Schwarz is able to adopt its portfolio in accordance with new test requirements.

RF amplifier testing

06-Nov-2019

While the new 5G technology is at the first stages of rollout, Rohde & Schwarz, the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI and the Fraunhofer Institute for Applied Solid State Physics IAF are taking a step further with demonstrations in the terahertz (THz) frequency band, related to the 6th generation wireless mobile communication (6G). The collaboration has resulted in a wireless transmit and receive system operating between 270 and 320 GHz, with further frequency extensions for potential 6G bands already in preparation.

21-Feb-2023

With research on the technology components for the future 6G wireless communication standard in full swing, the possibilities of an AI-native air interface for 6G also are being explored. Rohde & Schwarz, working with NVIDIA, is taking a step forward from simulations to implementing artificial intelligence and machine learning (AI/ML) in future 6G technology. At MWC Barcelona, the companies will present the industry’s first hardware-in-the-loop demonstration of a neural receiver, showing the achievable performance gains when using trained ML models compared to traditional signal processing.

This application note presents generator test solutions for WLAN IEEE 802.11ax high efficiency (HE) receiver testing. This document shows how to test 802.11ax receiver specifications and the HE trigger-based PPDU specifications according to the IEEE P802.11ax/D1.3 specification draft.

16-Aug-2017 | AN-No. 1GP115

Find out more about active electronically scanned array and antenna testing.

Evolution of Carrier Aggregation (3GPP Release 10 to 13) - Poster

This application note addresses the diverse possibilities of interoperability between Rohde & Schwarz power sensors and Rohde & Schwarz signal generators. All current and many legacy Rohde & Schwarz signal generators offer the capability of directly connecting power sensors. This enables power measurements without the need of a base unit or separate PC to display the readings. Furthermore, sensors can be used for special tasks like filling a user correction table or continuously controlling levels at crucial points in the measurement configuration.

31-Aug-2023 | AN-No. 1GP141

This application note explains how to convert different Rohde&Schwarz I/Q file formats among each other using the supplied software tool.

23-Sep-2015 | AN-No. 1EF85

radiated conformance testing according to TS 38.141-2, Rel. 16

3GPP defines the Radio Frequency (RF) conformance test methods and requirements for 5G NR Base Stations (BS) in the technical specifications TS 38.141.

30-Jun-2020 | AN-No. GFM325

This application note gives a short introduction to NB-IoT (Internet of things) and shows the easy measurements with Rohde & Schwarz instruments like transmitters and test receivers.

30-Jun-2017 | AN-No. 1MA296

GNSS simulators from the T&M expert

This application note aims to explain test procedures and characterization of the relevant parameters for active phased array antennas.

04-Jul-2016 | AN-No. 1MA248

Bluetooth

05-Jun-2019 | AN-No. 1MA108

A step by step HOW TO guide to perform manual and automated wireless coexistence testing

At the end of the year 2020, there were over 20 Billion internet of things (IoT) products in the world operating using the licensed and unlicensed frequency bands. This growth trend is projected to keep steady over the coming years as more and more people adopt to a smarter and more connected lifestyle. This will result in a much busier and challenging RF environment than the one we have today. In order to understand the complexity of the RF spectrum, a white paper was published in 2021 from Rohde & Schwarz, which featured RF spectrum activity at multiple locations observed at different times of the day. The locations were selected based on population densities and the amount of known RF transmitters & their frequencies at those locations. It was also concluded that the ISM bands on average have higher channel utilization since most IoT devices take advantage of the unlicensed spectrum. The paper recommended, that while performing wireless coexistence testing, the test conditions should reflect the operational RF environment that the device is intended to operate in. Otherwise, the characterization of RF performance would only reflect ideal case which doesn’t exist in real world operation. Since it is not always possible to test all devices in the real world, relevant test methodologies need to be setup to replicate the real world as much as possible.This will help us get a better understanding of how the receiver of the RF device will behave under different RF conditions. It is also recommended to perform measurements in order to understand the behavior of the device in the future when the spectrum will get even more challenging. Therefore, a through characterization of the capability of the RF receiver to handle in-band and out-of-band interference signals in also of interest.In terms of regulatory compliance requirements for ensuring wireless coexistence performance, the ANSI C63.27 is currently the only published test standard that provides guidance on how to perform coexistence testing on devices. The test complexity is based up on risk imposed on the user’s health in the event of a failure caused by an or a plurality of interference signal. The standard also gives device manufacturers guidance regarding test setups, measurement environments, interference signal types and strategy, performance quality measurement parameters for physical layer using key performance indicator (KPI) and application layer parameters for end-to-end functional wireless performance (FWP).In this application note, the guidance provided by the ANSI C63.27-2021 version regarding test setup, measurement parameter and interference signal have been followed. It will give the reader a clear idea on how to configure standardized test instruments from R&S in order to generate the wanted signal as well as unintended interference signals and conduct measurement to monitor device performance in terms of PER, ping latency and data throughput.This application note provides step-by-step instruction on how to perform measurements using conducted and radiated methodology. Both manual and automated instrument configuration approach is explained in this document.The automation scripts are written using python scripting language and are available for download with this application note, free of charge. Official required to run the scripts are available on the PYPI database.

10-Nov-2022 | AN-No. 1SL392

This Application Note addresses signal measurements and analysis of automotive radars that are crucial during the development and verification stages.

10-Jun-2016 | AN-No. 1MA267

Spurious signals during RF level sweep

08-Feb-2018

Mobile World Congress 2018: Rohde & Schwarz to present cutting-edge T&M equipment for 5G, LTE-A Pro, IoT and IP security

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Comprehensive test solutions guide for production and R&D

Small cell is a compact base station with smaller form factor and lower transmission power in comparison to the conventional macro base station. It covers relatively small area and serves less users. Usually, small cell can be integrated into the existing mobile network. By the evolution of radio access technology, the role of small cell has been changing through the evolution path. In the 2G/3G time, its role was to provide coverage in corner cases. Later during LTE, networks are not just providing coverage but capacity too. Small cells were then used to provide the addition capacity where required without adding additional spectrum. Now in 5G era, network operators use densification as an important strategy to provide seamless 5G services which demand coverage, capacity and performance too. With use cases requiring the 5G millimeter wave (mmW) rollouts, it makes sense to use small cells for densification due to the propagation characteristics of mmW.In this application note, we will shed light on the testing aspects of a small cell throughout the product life cycle with particular focus on the production test solution for the small cell device under test (DUT) in FR2 (frequency range 2, mmW frequency band) in Over the Air (OTA) environment for option 6 split based on radio communication tester R&S®CMP200 and OTA chamber R&S®CMQ200. The document is complemented with more insights into test solutions used in typical R&D test applications towards the second half of the application note.

19-Jun-2023 | AN-No. 1SL395

This white paper introduces measures to minimize malware threats and discusses ways to reduce risks while insuring that instrument performance is not compromised. The paper also discusses the use of anti-virus software in combination with Embedded Linux based instruments.

23-Nov-2016 | AN-No. 1GP112

This application note expands modulation bandwidth up to 2 GHz and covers both V- and E-band examples.

18-Jun-2015 | AN-No. 1MA257

This application note introduces the R&S®Pulse Sequencer software and outlines necessary steps to generate a real life RF signal environment.

17-Jan-2017 | AN-No. 1MA288

This application note demonstrates Rohde & Schwarz test solutions for generating WLAN 802.11ac signals and explains step-by-step how to configure a test signal. Several measurements are presented to illustrate EVM performance.

26-Apr-2013 | AN-No. 1GP94

This white paper provides an overview of test solutions addressing current and future requirements for antenna verification.

11-Nov-2016 | AN-No. 1MA286

This application note describes how to use the R&S CMW platform to perform the measurements defined in Bluetooth test specification version 5.

19-Jun-2017 | AN-No. 1MA282

Russian version - Гибкая генерация целей для испытаний радиолокационных приемников

14-Feb-2022

Leveraging years of experience and exceptional insight in the entire mobile industry, Rohde & Schwarz is ready to present its comprehensive, leading-edge portfolio of mobile and wireless communications testing solutions at Mobile World Congress 2022 in Barcelona.