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Find the information you need from Rohde & Schwarz. Search for products, technologies, applications, manuals, datasheets, tutorials, FAQs, and more.
Search Rohde-Schwarz.com
Find the information you need from Rohde & Schwarz. Search for products, technologies, applications, manuals, datasheets, tutorials, FAQs, and more.
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Learn how to test Bluetooth® positioning applications. Find solutions for Bluetooth® Channel Sounding, Bluetooth® distance measurements & BT location services.
Register and download now our Whitepaper “Testing passive networks in distributed antenna systems (DAS)”.
Learn about extremely short latencies in 5G and how they will enable the use of new applications, e.g. eGaming, and introduce new non-human user classes.
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
Rohde & Schwarz is your trusted partner for secure air traffic communications from the radio to the antenna. Join us online with the latest news from the World ATM Congress 2022.
Discover all automotive radar test and measurement solutions from Rohde & Schwarz.
As one of the world's leading VCS & radio manufacturers and turnkey system integrators, Rohde & Schwarz is your trusted partner for your air traffic communication needs.
In this whitepaper we describe the device to device communication in LTE from a UE point of view. Network elements are described as far as they concern the UE. In addition to the message transmission and reception, a special emphasis is put on the synchronization between UEs and on the security for the message exchange.
29-Sep-2015 | AN-No. 1MA264
WiMAX - General information about the standard 802.16
13-Jun-2006 | AN-No. 1MA96
This whitepaper provides an overview of the WLAN offload in LTE as standardized by 3GPP, as well as the enhancements for Wi-Fi standardized by IEEE and the Wi-Fi Alliance. It also describes access methods in the joint network, treats the security, and describes IP mobility. In addition network discovery and selection are explained.
10-Dec-2012 | AN-No. 1MA214
Rohde & Schwarz offers a multitude of solutions for testing LTE-Advanced carrier aggregation implementations.
EMC test solutions from R&S provide full compliance to CISPR, IEC, ISO and MIL standards. Learn more about our EMC compliance test solutions.
LDACS is about to enter the operational deployment phase. Learn more about the technological advantages, such as global interoperability, ground infrastructure sovereignty and high resilience.
Rohde & Schwarz offers dedicated testing solutions to ensure optimal beamforming antenna designs.
EDGE Evolution Technology Introduction
02-Apr-2008 | AN-No. 1MA129
Cell search and cell selection in UMTS LTE
17-Sep-2009 | AN-No. 1MA150
Watch our videos about taking next steps on non-terrestrial networks and satellite 5G / IOT and learn more about 3GPP, omnipresent communiation services, LEO and MEO satellite operators, innovation and standardization.
In this whitepaper we introduce the NB-IoT technology with an emphasis on the tight connection to LTE.
08-Aug-2016 | AN-No. 1MA266
Wireless coexistence testing is crucial for transmitters and receivers that operate in close proximity or on the same chip or module (in-device).
UMTS Long Term Evolution (LTE) Technology Introduction
14-Sep-2009 | AN-No. 1MA111
Read more about data latency in real field mobile networks. We will analyze in more detail how applied data rate and packet size influence latency.
Read more about how the interactivity test can help evaluating the reliability or service availability of private 5G networks. How many 9’s are supported?
Read more about the new Recommendation ITU-T G.1051. ITU uses Rohde & Schwarz latency measurements and interactivity tests as international standards.
Read more about data latency in real-field mobile networks. We study the occurrence of delay jitter in uplink and downlink direction and packet loss.
Digital pre-distortion (DPD) is a common method. This article describes an approach to generate a pre-distorted signal based on a hard-clipper.
13-Sep-2017 | AN-No. 1EF99
Rohde & Schwarz transmitter solutions have stood out for decades, offering highest efficiency, smooth operation and a future-ready design. Learn more.
Discover Rohde & Schwarz´s solutions for in-vehicle communication network: World's first compliance test solution for automotive Ethernet and other bus systems.
For cable TV, the "last mile" to the connection at the home is the bottleneck that prevents higher data rates. The last mile is made up of optical fiber and coaxial cables, amplifiers and electrical/optical converters. This mix of optical fiber and coaxial cables is known as a hybrid fiber coax (HFC) network. One option for cable network providers to maximize both the downstream (DS) and upstream (US) data throughput using the existing cable TV network, but without making expensive changes to the HFC network infrastructure, is to employ the data over cable service interface specification (DOCSIS) 3.1. This Application Note discusses the fundamental technological advances of DOCSIS 3.1 and presents measurement solutions from Rohde & Schwarz.
02-Mar-2015 | AN-No. 7MH89
A wide range of Signal Integrity solutions from Rohde & Schwarz ► Get more information!