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

Demonstrations from MWC-Americas 2018

Demonstrations from MWC-Americas 2018

View some of our featured demonstrations at MWC Americas: 5G NR Testing      5G Field Testing          Over-the-Air (OTA) Device Test            5G Manufacturing Test NB-IoT Device Test    IP Network Traffic Analysis

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The State of 5G

The State of 5G

With high hopes and skepticism, we set out to survey the wireless ecosystem from manufacturers, operators, test houses, and labs, service and repair specialists, network maintenance and installation professionals, and more to get a thorough status report on 5G. What we discovered was that after years of hype around cutting-edge network technology, gigabit speeds, and…

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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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4G/LTE Technologies

Latest posts about 4G/LTE Technologies

Poster: UE categories from Release 5 to Release 15

Poster: UE categories from Release 5 to Release 15

Do you get lost in the world of UE categories? 3GPP specified the first UE categories in Release 5. They define the various key parameters a UE supports in order to achieve a certain data rate. UE category specifications have since evolved and are particularly important for LTE-Advanced Pro. 5G introduces a new way to…

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Recording and Playing Back the GPS RF Spectrum

Recording and Playing Back the GPS RF Spectrum

A GPS L1-frequency signal is recorded using a receiver such as an R&S®TSMW or an R&S®FSV. Then the I/Q data is stored via the digital I/Q interface on an R&S®IQR device. Playback is realized using an R&S®SMBV signal generator that is also connected to an R&S®IQR via a digital I/Q interface.

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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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Mobile Network Technologies

Latest posts about Mobile Network Technologies

Webinar: Does your LTE network meet expectations?

Webinar: Does your LTE network meet expectations?

This webinar will explain how to determine the end user performance in real-world LTE networks. It provides the key performance indicators to measure and analyze the parameters that impact network performance. Based on real life LTE network measurements, the rationale of test results will be explained and approaches on how to solve potential issues will…

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Introduction to Interference Hunting

Introduction to Interference Hunting

In this white paper, we will explore the topic of interference hunting beginning with a broad overview of the topic and then leading to a more practical discussion on the different types of interferers, analysis of interferers and the tools that are often used in the field to perform interference hunting.

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White paper: Comparing CW and low duty cycle passive intermodulation (PIM) measurements

White paper: Comparing CW and low duty cycle passive intermodulation (PIM) measurements

The measurement technique used by a PIM analyzer is CW or low duty cycle. The only traceable device available to independently validate a PIM analyzer’s measurement accuracy in the field is a PIM standard. For this technical discussion, the measurement techniques are explored and explained along with the fact that CW and LDC offer similar…

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