Central Unit (CU)
Digital unit of 5G base station, controlling and processing data streams in 5G wireless access network.
 Radio Unit (RU)
Wireless unit of 5G base station that communicates over the air with user devices such as smartphones and tablets.
Abbreviation of 3GPP's 5th Generation system. Refers to the fifth generation of mobile communications standards, which have recently been defined by the 3rd Generation Partnership Project (3GPP), a global organization for establishing mobile communication standards, joined by Fujitsu and other major companies around the world in fields related to mobile communications. The 5G system standards include an agreement to deliver improvements such as higher speeds, greater capacity, lower latency and higher reliability, compared with the existing LTE and LTE-Advanced systems. Specifications for the 5G system were initially completed in December 2017.
 Software-defined radio (SDR)
Technology that enables wireless functionality to be flexibly implemented or modified by software running on the hardware.
 Beam Forming
Technology that can concentrate wireless signals in a specified direction by controlling the phase (angle) produced by the antenna elements in an antenna panel.
Interconnection point between CU and RU within base station.
 O-RAN Alliance
An industry organization aiming to create open and expandable next-generation wireless access networks including 5G, promoting the standardization of such networks.
 3GPP's Release 15
A document released by 3GPP defining specifications for non-standalone (NSA) 5G. It provides technical information, such as that 5G base stations should coordinate with LTE and LTE-Advanced base stations to provide a 5G signal.
Fujitsu is the leading Japanese information and communication technology (ICT) company, offering a full range of technology products, solutions, and services. Approximately 132,000 Fujitsu people support customers in more than 100 countries. We use our experience and the power of ICT to shape the future of society with our customers. Fujitsu Limited (TSE: 6702) reported consolidated revenues of 4.0 trillion yen (US $36 billion) for the fiscal year ended March 31, 2019. For more information, please see www.fujitsu.com.
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Date: 31 July, 2019
Company: Fujitsu Limited