ail directly Part 1: Introduction to 5G This part of the book will provide an overview of 5G technologies. You will develop a solid understanding of the fundamental building blocks that enable 5G technology. The chapters in this part will unravel the aspects that make 5G unique and capable of addressing high-quality demands in terms of bandwidth, latency, and quality of service, as well as the technologies that back 5G, the enhancements to the air interface, and the packet core, which come together to light up the network that is capable of this performance. It will cover how to design and implement 5G macro and private networks and, at the same time, explain the various design and deployment options available. This part of the book comprises the following chapters: Chapter 1, Introduction to 5G Chapter 2, End-to-End Architecture Components, Concepts, Security, and Transport Chapter 3, Building Blocks - Cloud Native Infrastructure Chapter 4, 5G Air Interface and Physical Layer Procedures - Part 1 Chapter 5, 5G Air Interface and Physical Layer Procedures - Part 2 Chapter 6, 5G Air Interface and Physical Layer Procedures - Part 3 Chapter 7, Packet Core Procedures Chapter 8, Voice over New Radio (VoNR) Introduction to 5G 5G is the fifth-generation technology standard for mobile cellular networks, which is the successor to 4G networks. This chapter introduces key aspects and methodologies of the 5G New Radio (NR), with a focus on the concepts and drivers. It provides some basic understanding of the 5G NR and Next-Generation Radio Access Network (NG-RAN) and the end-to-end system architecture at a high level. Core network-related aspects will be evaluated in the upcoming chapters. Understanding the lessons of this chapter, mainly 5G concepts and drivers, and some key features of 5G NR is important to build the foundation for the upcoming chapters in the book. In this chapter, we will cover the following topics: 5G concepts and drivers 5G NR and NG-RAN 5G concepts and drivers In this section, we will analyze key driver