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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

09-Nov-2021 | Press Releases | Automotive

Rohde & Schwarz has joined the Car Connectivity Consortium (CCC) to support the organization's mission to foster industrywide standards for communications between vehicles and smartphones. The company will contribute its broad expertise in mobile device and automotive technology testing. In particular, the company will provide its solutions for the development and production of UWB devices and modules for automotive applications such as keyless vehicle access.

Leading solutions from Rohde & Schwarz for Ethernet test. Check the compliance of Ethernet interfaces of your designs to Ethernet standards - get more information!

17-Feb-2022 | Press Releases | Test & measurement

The Bosch Group has selected the R&S CMP200 radio communication tester from Rohde & Schwarz to validate automotive Ultra-Wideband (UWB) applications in manufacturing. The project is a continuation of the long-term cooperation between Bosch and Rohde & Schwarz in wireless connectivity.

05-Nov-2020 | Press Releases | Test & measurement

Eurofins Digital Testing, a global leader in end-to-end quality assurance and testing services, and Rohde & Schwarz, a leading test and measurement expert, are working closely together to give customers access to the latest High-Speed Signal Analysis and Compliance Testing tools using the R&S RTP164 high performance oscilloscope. These will give Eurofins a competitive edge in testing high-speed interoperability. They will further provide certification services for high-speed communications technologies including USB.

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Non-terrestrial networks (NTN) enable global access to services like mobile data, voice calls and messaging, regardless of geographical location or terrain

24-Nov-2022 | Press Releases | Test & measurement

Electric vehicles contain many electronic components that emit radio-frequency interference which may have a negative impact on the vehicle performance and driving experience. To ease and speed up the development process, AVL and Rohde & Schwarz, two of the world’s leading providers of automotive test systems, present an innovative solution for automated electromagnetic compatibility (EMC) data analysis of an electric drivetrain under real driving conditions.

03-Nov-2021 | Press Releases | Automotive

Granite River Labs (GRL), a global leader in engineering services and test solutions for connectivity and charging, today announced the opening of its new lab in Karlsruhe, Germany. Located in a major technology hub about one hour from Stuttgart and Frankfurt, GRL’s new state-of-the-art lab supports the growing needs of the automotive, medical and industrial automation industries in Europe to validate and troubleshoot high-speed connectivity and charging interfaces. These interfaces include automotive Ethernet, HDMI, USB, MIPI and DDR, as well as USB Power Delivery and Qi wireless charging.

Visit us at the Productronica in Munich, Germany. We look forward to welcoming you at our Rohde & Schwarz booth.

15-Sep-2022 | Press Releases | Automotive

The R&S ATS1500C antenna test system from Rohde & Schwarz offers a new temperature test option and a new feed antenna. These additional features enable temperature-controlled measurements in a wide temperature range as well as parallel access to both polarizations, increasing test efficiency and flexibility. The solution will be shown at EuMW from September 27 to 29, 2022 at booth D18 of the Milano Convention Centre.

Accelerating automotive radar sensor development with fast and accurate validation

07-Apr-2025

What role do measurement solutions from Rohde & Schwarz play in the vision of automated driving?

08-May-2024 | Press Releases | Automotive

Automated and autonomous vehicles, which rely on sensors like cameras and radar, either assist or take over decision-making in traffic situations. Sensors’ proper interaction and functionality must be thoroughly tested to ensure road safety.

16-Dec-2021 | Press Releases | Automotive

Rohde & Schwarz and market-leading customized test system supplier NOFFZ Technologies collaborate on the integration of the field-proven R&S Compact Antenna Test Range (CATR) reflector technology and advanced radar echo generator R&S AREG800A into NOFFZ’s versatile End-of-Line (EoL) radar sensor test system, the UTP 5069 CATR. This creates a fast, accurate and efficient test system optimized for production that facilitates the transition from radar sensor development to mass production.

Explore Rohde & Schwarz's latest T&M innovations in 5G, 6G and connectivity at MWC 2024, Barcelona, February 26-29. Visit us at Hall 5, Booth 5A80!

01-Mar-2023 | Press Releases | Test & measurement

Embedded systems are at the core of today’s electronic devices, whether in consumer electronics, telecommunications, industrial, medical, automotive or aerospace applications. Flawless operation is crucial, and engineers face complex challenges when designing ever more compact embedded systems which meet today’s demands of efficiency, safety, reliability and interoperability. Rohde & Schwarz addresses these challenges with its wide-ranging test and measurement solutions showcased at the embedded world Exhibition & Conference 2023 in Nuremberg.

This poster gives an overview on the testing methods applied on radar sensors and their integration into vehicles. Register now and download our free poster.

Download our free poster and follow the evolution from LTE to 5G in the automotive industry at one glance from 3GPP release 10 to upcoming release 16 and beyond.

Read this application card to learn more about what the 10BASE-T1S Ethernet compliance test offers and how it ensures reliable operation and functionality.

15-May-2020

This poster shows the different types of error sources and explains how high precision GNSS calculates and transmits error correction data to vehicles.

Sign up and get a concise overview of the radio frequency bands and regulations in today's and tomorrow's cars for free. Get it here.

This white paper provides a technology deep dive into architecture, protocols and physical layer of 5G NR‑V2X communications in line with 3GPP Release 16.

This poster identifies the most prominent vehicle features and itemizes their associated wireless standards such as UWB, 5G, BluetoothTM and DAB. Furthermore, each feature is classified into logical categories, eg infotainment, automated driving and monitoring.

Discover the components and structure of automotive electronic systems and how innovative test products and systems from Rohde & Schwarz address the entire vehicle.

Wireless coexistence testing is crucial for transmitters and receivers that operate in close proximity or on the same chip or module (in-device).

Join Rohde & Schwarz in Las Vegas at NAB 2025. Step into a new era of broadcast distribution and discover the R&S Tech Talks to gain insights into the industry's future.

Download our V2X fact sheet and learn more about the verification of safety-critical scenarios in the lab.