Mobile Wireless Learning Center

Industry Leading Technical Documents


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Posters:

Microwaves and Beyond

Test and measurement excellence up to 500 GHz and beyond Rohde & Schwarz offers the right solutions for your microwave test needs including signal generators, spectrum and signal analyzers, network analyzers, power meters, oscilloscopes and EMC test equipment. Whatever your application, whether you are dealing with pulsed, swept or modulated signals, our instruments generate and… Read more »
Posters:

LTE Technology Overview

Long Term Evolution (LTE) will ensure the competitiveness of UMTS for the next ten years and beyond by providing a high-data rate, low-latency and packet-optimized system. Also known as E-UTRA (Evolved Universal Terrestrial Radio Access), LTE is part of 3GPP Release 8 specifications. The innovations that LTE brings to the UMTS world are highlighted in… Read more »
Posters:

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… Read more »
eBooks:

Massive MIMO: 8 Things to Consider

This e-book provides a concise overview of key aspects of massive MIMO technology and test with links to relevant content throughout this Learning Center site.
Whitepapers:

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… Read more »
Whitepapers:

Testing passive networks in distributed antenna systems (DAS)

In the last decade, worldwide consumer demand for cellular services has driven network operators to strive for better network coverage and within that coverage footprint, better network capacity. Since more than 80 % of cellular traffic comes from inside a building, in-building coverage, and in-building capacity have become a focus of this effort. In addition,… Read more »
Whitepapers:

LTE mobile network optimization – a definitive guide

This white paper explains the specific field level and key performance indicators that impact the performance and optimization of an LTE network. In order to have good end-to-end performance, each and every performance indicator needs to be optimized. While a single KPI can affect the user experience in a specific context, true performance management is… Read more »
Articles:

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… Read more »
Technical Documents:

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… Read more »
Whitepapers:

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… Read more »