Demonstrations from MWC-Americas 2018

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

The State of 5G

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…

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…

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…

High-Resolution Directional Channel Measurements at 67 GHz and Advanced Analysis of Interactions Using Geometric Information

This paper presents results from a high-resolution channel measurement campaign at 67GHz in a street canyon in Tokyo, with focus on an extended evaluation method which incorporates map-based side information. Besides being beneficial for validating the results of the path estimation, the analysis allows the identification of main sources of interaction and the differentiation between…

5G Antenna Characterization in the Far-Field

5G mobile devices and base stations will be operating antenna arrays and beam-steering techniques in the millimeter-wave region. The question of the far-field measurement distance is particularly critical for such technologies as a larger over-the-air test range means dynamic range issues and significantly larger cost. The traditionally used formula for the far-field distance aims at…