The intuitive graphical user interface makes it simple for users to test wireless devices for compliance with the 3GPP protocols for various technologies.

20-Feb-2015

This document describes the adaptive frequency hopping mechanism for improved signaling performance in Bluetooth Basic Rate and Enhanced Data Rate devices.The R&S CMW provides this feature for remote operation in TX, Loopback and Connection test mode. Thereby the R&S CMW acts as a master, while the Equipment under Test (EUT) represents the slave(s) of the piconet.

14-Dec-2016 | AN-No. 1C108

This application note explains battery life tests using RT-ZVC in combination with CMWrun and CMW500, including example applications.

17-Feb-2017 | AN-No. 1MA281

R&S CMWrun - RF preconformance testing solution

20-Feb-2015

Increase the IP connection security of your IoT device

04-Apr-2017

LTE user equipment (UE) receiver performance has significant impact to cellular radio network coverage and capacity. It determines the maximum data throughput across the air interface between the LTE base station (eNB, evolved node B) and the mobile network subscriber UE, thus it determines the total capacity across the air interface. Therefore, it is one of the most important measurements to verify the actual receiver performance of individual devices, and a key metric to compare different devices, in particular.This paper shall give an introduction to receiver performance measurements and discusses the measurement metrics as well as the challenges of over the air (OTA) measurements.

31-Aug-2017 | AN-No. 1ST001

Modern communications devices support a large number of standards in a very small space, which can lead to interference due to occupying the same frequency bands.

14-Mar-2016

R&S CMW - IP throughput testing

14-Mar-2016

LTE is under continuous development. Release 10 (LTE-Advanced) introduced carrier aggregation (CA) as the primary enhancement. Releases 11 and 12 add several new components to LTE. Some are enhancements to existing features (such as improvements to CA), while others are completely new concepts, such as coordinated multipoint (CoMP).This application note summarizes the Rohde & Schwarz test solutions for LTE-Advanced according to Releases 11 and 12 using vector signal generators, signal and spectrum analyzers and the wideband radio communication tester.

14-Jul-2016 | AN-No. 1MA272

R&S CMWrun - Video analysis test solution

20-Feb-2015

R&S CMWrun - Turnkey solutions for production

14-Mar-2016

R&S CMWrun - Audio performance testing solution

20-Feb-2015

R&S CMWrun - Battery life measurements

20-Feb-2015

Air Traffic Control (ATC) radar, military Air Traffic Surveillance (ATS) radar and meteorological radar operate in S-Band frequency range. In fact 4G communication systems such as Long Term Evolution (LTE) make also use of these frequencies.

28-Mar-2014 | AN-No. 1MA211

VAMOS Technology Introduction

17-Aug-2011 | AN-No. 1MA181

The R&S®CMW wireless communication tester are ideal for designing and verifying Bluetooth® Low Energy (LE) circuits and modules.

27-Jan-2017

his application note briefly describes the technology behind ERA-GLONASS and presents conformance tests for ERAGLONASS using the R&S®CMW500 RF tester and the R&S®SMBV100A vector signal generator.

24-Jan-2018 | AN-No. 1MA251

R&S CMWrun Sequencer Software Tool

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

This application note summarizes the Rohde &Schwarz test solutions for LTE-Advanced (Release 10) using Vector Signal Generators, Signal and Spectrum Analyzers and the Wideband Radio Communication Tester.

03-Sep-2014 | AN-No. 1MA166

This application note describes the technology behind NG eCall and presents conformance tests for NG eCall using the R&S®CMW500 RF tester.

06-Jun-2019 | AN-No. GFM312

The Rohde & Schwarz Bluetooth RF test solution with the R&S CMW and R&S CMWrun is closely aligned to the Bluetooth RF Test Suite. This document describes common setups for these tests and the required configurations.

04-May-2015 | AN-No. 1MA261

GNSS simulators from the T&M expert

Test your eCall and ERA-Glonass system modules - The R&S CMW500 and R&S SMBV100A are the ideal team for testing your eCall and ERA-Glonass cellular modems and GNSS receivers in the lab.

02-May-2022

1MA210 - Testing LTE Release 9 Features. This Application Note describes the T&M methods for LTE Release 9 features using Rohde & Schwarz instruments.

26-Apr-2013 | AN-No. 1MA210

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

Testing HSPA+

26-Apr-2013 | AN-No. 1MA121

Introduction to MIMO

02-Jul-2009 | AN-No. 1MA142

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