Cellular Internet of Things, 2nd Edition

Chapter 5: LTE-M

Abstract

In this chapter, we describe the Long-Term Evolution for Machine-Type Communications (LTE-M) technology with an emphasis on how it is designed to fulfill the objectives that LTE-M targets, namely achieving low device cost, deep coverage and long battery lifetime while maintaining capacity for a large number of devices per cell, with performance and functionality suitable for both low-end and mid-range applications for the Internet of Things.

Section 5.1 describes the background behind the introduction of LTE-M in the Third Generation Partnership Project (3GPP) specifications and the design principles of the technology. Section 5.2 focuses on the physical channels with an emphasis on how these channels were designed ...