APSIPA Transactions on Signal and Information Processing > Vol 6 > Issue 1

Unified access in licensed and unlicensed bands in LTE-A Pro and 5G

Industrial Technology Advances

Boon Loong Ng, Samsung Research America, USA, Hongbo Si, Samsung Research America, USA, Aris Papasakellariou, Samsung Research America, USA, Jianzhong Charlie Zhang, Samsung Research America, USA, jianzhong.z@samsung.com
 
Suggested Citation
Boon Loong Ng, Hongbo Si, Aris Papasakellariou and Jianzhong Charlie Zhang (2017), "Unified access in licensed and unlicensed bands in LTE-A Pro and 5G", APSIPA Transactions on Signal and Information Processing: Vol. 6: No. 1, e6. http://dx.doi.org/10.1017/ATSIP.2017.7

Publication Date: 12 Jul 2017
© 2017 Boon Loong Ng, Hongbo Si, Aris Papasakellariou and Jianzhong Charlie Zhang
 
Subjects
 
Keywords
5GLTE-AUnlicensed band
 

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This is published under the terms of the Creative Commons Attribution licence.

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In this article:
I. INTRODUCTION 
II. UNLICENSED ACCESS FOR LTE-A PRO 
III. UNLICENSED AND SHARED ACCESS FOR 5G NR 
IV. CONCLUSION 

Abstract

Spectrum scarcity has driven enhancements of Long-Term Evolution (LTE) in utilizing unlicensed bands in conjunction with licensed bands for delivering mobile data, resulting in the introduction of LTE unlicensed technologies such as Rel-13 LTE–Licensed-Assisted Access (LAA), Rel-14 LTE–Enhanced Licensed-Assisted Access (eLAA), and LTE-Unlicensed (LTE-U). The next-generation radio access technology, 5G New Radio(NR), faces greater technical challenge due to the need to support frequency bands covering various spectrum licensing regimes and a wide range of frequencies (up to 100 GHz) with very different signal propagation characteristics. This paper presents an overview of LAA and eLAA technical features and 5G NR design considerations to achieve a unified access in licensed and unlicensed bands.

DOI:10.1017/ATSIP.2017.7