Welcome to the Mobile Wireless Learning Center! The site is divided into several sections: 5G, 4G/LTE and Mobile Network Testing.  Content is updated frequently, so please come back often to see what’s new. Thanks for visiting!

5G Technologies

Latest posts about 5G Technologies

Linearization and Efficient 5G Radio Front-Ends

Linearization and Efficient 5G Radio Front-Ends

Evolution of the Transmit Radio Front-End from 2G to 4G for mobile devices and infrastructure, with cost and energy efficiency driving demand, has resulted in the widespread adoption of envelope tracking and Doherty techniques for efficiency enhancement, augmented by digital predistortion. The step-change in 5G requirements, especially bandwidth, operating frequency and beamforming, presents an opportunity…

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White Paper: Radio fundamentals for cellular networks

White Paper: Radio fundamentals for cellular networks

Cellular technologies have advanced from first generation (1G) analog technologies to advanced high performance fourth generation (4G) and fifth generation (5G) systems in just four decades. Despite the increase in complexity of wireless standards and devices, cellular technologies maintain a set of common principles that form the basis behind the design of cellular systems. In…

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Analysis of Delay and AOD Spread at 67 GHz for an Urban Micro Street Canyon Scenario

Analysis of Delay and AOD Spread at 67 GHz for an Urban Micro Street Canyon Scenario

In this paper, we present results from a channel measurement campaign at 67 GHz in Tokyo with focus on the delay spread (DS) and azimuth angle of departure spread (ASD). With mean values of 15.7 ns and 20.1° for a 20 dB threshold, the DS is lower than assumed in the current 3GPP channel model…

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4G/LTE Technologies

Latest posts about 4G/LTE Technologies

GPS, Glonass, Galileo Receiver Testing Using a GNSS Signal Simulator

GPS, Glonass, Galileo Receiver Testing Using a GNSS Signal Simulator

Testing global navigation satellite system (GNSS) receivers can be done easily, reliably and cost-efficiently by using the R&S®SMBV100A vector signal generator. This GNSS simulator can generate GPS, Glonass and Galileo signals for up to 24 satellites in real time. This application note explains how to perform automated receiver tests using the R&S®SMBV100A.

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LTE-Advanced Technology Introduction

LTE-Advanced Technology Introduction

Although the commercialization of LTE technology began in end 2009, the technology is still being enhanced in order to meet ITU-Advanced requirements. This white paper summarizes these necessary improvements, which are known as LTE-Advanced.

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LTE Basics – Part 02

LTE Basics – Part 02

LTE key parameters: frequency range, Introduction to OFDMA and downlink frame structure

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Mobile Network Technologies

Latest posts about Mobile Network Technologies

Testing Mobile Radio Antenna Systems with the R&S FSH

Testing Mobile Radio Antenna Systems with the R&S FSH

This application note describes the procedures used to measure antenna systems for mobile radio base stations using the Handheld Spectrum Analyzer R&S FSH.

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Webinar: Understanding and Testing Carrier Aggregation in the Field

Webinar: Understanding and Testing Carrier Aggregation in the Field

In this webinar, Rohde & Schwarz will present a technical overview of carrier aggregation and specific examples of the most important functional and performance tests. This webinar will provide cell site engineers and technicians with the information they need to test, optimize, and troubleshoot carrier aggregation in the field.

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Interference Hunting in 5G Networks

Interference Hunting in 5G Networks

The tools and techniques used in interference hunting have remained largely the same across previous generations of cellular technologies. Differences in modulation, bandwidth, and frequency bands for 5G networks will however require substantial changes in how interference is detected, located, and resolved in 5G networks. This webinar will provide a short overview of pre-5G interference…

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