and Sandra Grayson. We are grateful to our families, as well as the families of all the authors, for their patience during the late night writing and weekend editing sessions. The editors and authors welcome any comments and suggestions for improvements or changes that could be implemented in forthcoming editions of this book. We invite your feedback, which can be sent to the editors' e-mail addresses: harri.holma@nokia.com, antti.toskala@nokia.com, and nakamurata@nttdocomo.com. Introduction Harri Holma¹ Antti Toskala¹, Takehiro Nakamura², and Tommi Uitto 3 1 Nokia Bell Labs, Finland 2 NTT DOCOMO, Japan 3 Nokia, Finland CHAPTER MENU Introduction, 1 5G Targets, 3 5G Technology Components, 3 5G Spectrum, 4 5G Capabilities, 5 5G Capacity Boost, 7 5G Standardization and Schedule, 8 5G Use Cases, 9 Evolution Path from LTE to 5G, 10 Mobile Data Traffic Growth, 10 Summary, 11 Reference, 11 1.1 Introduction 5G radio represents a major step in mobile network capabilities. Up to now, mobile networks have mainly provided connectivity for smartphones, tablets, and laptops for consumers. 5G will take the traditional mobile broadband to the extreme in terms of data rates, capacity, and availability. In addition, 5G will enable new services including industrial Internet of Things (IoT) connectivity and critical communication. 5G targets are set very high with data rates up to 20 Gbps and capacity increases of up to 1000 times with flexible platforms for device connectivity, ultra-low latency, and high reliability. A number of new use cases and applications can be run on top of 5G mobile networks. It is expected that 5G can fundamentally impact all sections of society by improving efficiency, productivity, and safety. 4G networks were designed and developed 10 years ago, mainly by telecom operators and vendors for the smartphone use case. Today, other 5G Technology: 3GPP New Radio, First Edition. Edited by Harri Holma, Antti Toskala, and Takehiro Nakamura. © 2020 John Wiley & Sons Ltd. Published 2020 by John Wiley & Sons Ltd. 1 