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5G NR: The Next Generation Wireless Access Technology 2第二 版本
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爱立信专家 权威著作 第二版
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5G NR
THE NEXT GENERATION
WIRELESS ACCESS TECHNOLOGY
5G NR
THE NEXT GENERATION
WIRELESS ACCESS TECHNOLOGY
SECOND EDITION
ERIK DAHLMAN
STEFAN PARKVALL
JOHAN SK
€
OLD
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© 2021 Elsevier Ltd. All rights reserved.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical,
including photocopying, recording, or any information storage and retrieval system, without permission in writing
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This book and the individual contributions contained in it are protected under copyright by the Publisher (other
than as may be noted herein).
Notices
Knowledge and best practice in this field are constantly changing. As new research and experience broaden our
understanding, changes in research methods, professional practices, or medical treatment may become necessary.
Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any
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responsibility.
To the fullest extent of the law, neither the Publisher nor the authors, contributors, or editors, assume any liability
for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from
any use or operation of any methods, products, instructions, or ideas contained in the material herein.
Library of Congress Cataloging-in-Publication Data
A catalog record for this book is available from the Library of Congress
British Library Cataloguing-in-Publication Data
A catalogue record for this book is available from the British Library
ISBN 978-0-12-822320-8
For information on all Academic Press publications
visit our website at https://www.elsevier.com/books-and-journals
Publisher: Mara Conner
Acquisitions Editor: Tim Pitts
Editorial Project Manager: Gabriela Capille
Production Project Manager: Prem Kumar Kaliamoorthi
Cover Designer: Greg Harris
Typeset by SPi Global, India
Preface
Long-Term Evolution (LTE) has become the most successful wireless mobile broadband
technology across the world, serving billions of users. Mobile broadband is, and will con-
tinue to be, an important part of future cellular communication, but future wireless net-
works are to a large extent also about a significantly wider range of use cases and a
correspondingly wider range of requirements. Although LTE is a very capable technol-
ogy, still evolving and expected to be used for many years to come, a new 5G radio access
known as New Radio (NR) has been standardized to meet future requirements.
This book describes NR, developed in 3GPP (Third-Generation Partnership Project)
as of late Spring 2020.
Chapter 1 provides a brief introduction, followed by a description of the standardi-
zation process and relevant organizations such as the aforementioned 3GPP and ITU in
Chapter 2. The frequency bands available for mobile communication are covered in
Chapter 3 together with a discussion on the process for finding new frequency bands.
An overview of LTE and its evolution is found in Chapter 4. Although the focus of
the book is NR, a brief overview of LTE as a background to the coming chapters is rel-
evant. One reason is that both LTE and NR are 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 in 5G radio access.
Chapter 5 provides an overview of NR. It can be read on its own to get a high-level
understanding of NR, or as an introduction to the subsequent chapters.
Chapter 6 outlines the overall protocol structure in NR, followed by a description of
the overall time/frequency structure of NR in Chapter 7.
Multi-antenna processing and beamforming are integral parts of NR. The channel
sounding tools to support these functions are outlined in Chapter 8, followed by the
overall transport-channel processing in Chapter 9 and the associated control signaling
in Chapter 10. How the functions are used to support different multi-antenna schemes
and beamforming functions is the topic of Chapters 11 and 12.
Retransmission functionality and scheduling are the topics of Chapters 13 and 14,
followed by power control in Chapter 15, cell search in Chapter 16, and random access
in Chapter 17.
Coexistence and interworking with LTE is an essential part of NR, especially in the
non-standalone version, which relies on LTE for mobility and initial access, and is
covered in Chapter 18.
xi
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