Preface
This book is a practical guide to the design, deployment, and performance of LTE‐A, VoLTE/IMS and IoT. A comprehensive practical performance analysis for VoLTE is conducted based on field measurement results from live LTE networks. Also, it provides a comprehensive introduction to IoT, 3GPP NB‐IoT and 5G evolutions. Practical aspects and best practice of LTE‐A/IMS/VoLTE/IoT, plus LTE‐Advanced features such as Carrier Aggregation (CA), are presented. In addition, LTE/LTE‐A network capacity dimensioning and analysis are demonstrated based on live LTE/LTE‐A networks KPIs. A comprehensive foundation for 5G technologies is provided including massive MIMO, eMBB, URLLC, mMTC, NGCN and network slicing, cloudification, virtualization and SDN.
Chapter 1 provides an overview of LTE/LTE‐A networks. This chapter is the foundation for the chapters 2 to 6. In Chapter 2, we will introduce the IP Multimedia Subsystem (IMS), which is the core network of Voice over LTE (VoLTE) and other advanced voice evolutions. The IMS architecture, core network elements, call and signaling flow between different network elements are comprehensively presented. The chapter provides the foundation for VoLTE performance analysis highlighted in chapter 3 and chapter 4. Other IMS services such as Voice over Wi‐Fi (VoWiFi), Video over LTE (ViLTE), and Web Real‐Time, Communication (WebRTC) are not discussed in detail. In addition, practical deployment scenarios for IMS‐network‐based on real use cases from a live ...
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