Internet of Things from Space: Transforming LTE Machine Type Communications for Non-terrestrial Networks

TL;DR

This paper discusses how LTE-M technology can be adapted for satellite communication in non-terrestrial networks, addressing physical and higher-layer challenges to enable IoT connectivity via space-based platforms.

Contribution

It identifies key challenges and proposes potential solutions for adapting LTE-M for satellite-based non-terrestrial networks within 5G standards.

Findings

Analysis of physical layer challenges in LTE-M NTN

Outline of adaptations needed for LTE-M to support satellite communication

Discussion of potential solutions for LTE-M in non-terrestrial networks

Abstract

Satellite communication is experiencing a new dawn thanks to low earth orbit mega constellations being deployed at an unprecedented speed. Fueled by the renewed interest in non-terrestrial networks (NTN), the Third Generation Partnership Project (3GPP) is preparing 5G NR, NB-IoT and LTE-M for NTN operation. This article is focused on LTE-M and the essential adaptations needed for supporting satellite communication. Specifically, the major challenges facing LTE-M NTN at the physical and higher layers are discussed and potential solutions are outlined.