Chapter 4

LTE—An Overview

Abstract

In this chapter, an overview of the 4G standard LTE and its evolution is provided in order to give a background and set the scene for the desccription of 5G NR.

Keywords

LTE; LTE Advanced; LTE Advanced Pro; release 8; LTE evolution; License-assisted access; LAA; V2Vm VX; D2D; sTTI

The focus of this book is NR, the new 5G radio access. Nevertheless, a brief overview of LTE as background to the coming chapters is relevant. One reason is that both LTE and NR have been developed by 3GPP and hence have a common background and share several technology components. Many of the design choices in NR are also based on experience from LTE. Furthermore, LTE continues to evolve in parallel with NR and is an important component ...

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