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Ubiquitous 6G Service Through Non-Terrestrial Networks | IEEE Journals & Magazine | IEEE Xplore
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Ubiquitous 6G Service Through Non-Terrestrial Networks


Abstract:

Non-Terrestrial Networks (NTN) are expected to be part of 6G from the start of its use, with the main objective to provide ubiquitous global coverage, including indoor co...Show More

Abstract:

Non-Terrestrial Networks (NTN) are expected to be part of 6G from the start of its use, with the main objective to provide ubiquitous global coverage, including indoor coverage. As NTN are being first introduced in a late phase of 5G, it is natural to use an evolution of 5G to 6G rather than a disruptive approach. In this article we describe the current state of NTN in 5G based on 3GPP Release-17 and 18, which serves as the reference for 6G. We outline the six building blocks which should be addressed in 6G NTN: coverage enhancements, GNSS independent operation, new architectures featuring regenerative satellites, integration of multiple network layers, spec-trum reuse including terrestrial bands, and support of a wide range of smartphone and loT devices.
Published in: IEEE Wireless Communications ( Volume: 30, Issue: 6, December 2023)
Page(s): 12 - 18
Date of Publication: 12 December 2023

ISSN Information:


Introduction

The cost of producing and launching satellites in space has dropped significantly over the last 10 years [1]. This has led to the (planned) deployment of several constellations of satellites for communications, like Starlink, OneWeb and Amazon's Kuiper system [2]. These systems were initially targeting the fixed wireless market, but now the focus is moving to the smartphone and loT device market [3], delivering connectivity to handhelds through satellites. This solves the issue of coverage holes in areas without terrestrial coverage by providing truly global coverage.

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References

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