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AN INTRODUCTION TO LTE LTE, LTE-ADVANCED, SAE AND 4G MOBILE COMMUNICATIONS Christopher Cox Director, Chris Cox Communications Ltd, UK A John Wiley & Sons, Ltd., Publication This edition first published 2012 2012 John Wiley & Sons Ltd Registered office John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom For details of our global editorial offices, for customer services and for information about how to apply for permission to reuse the copyright material in this book please see our website at www.wiley.com. The right of the author to be identified as the author of this work has been asserted in accordance with the Copyright, Designs and Patents Act 1988. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by the UK Copyright, Designs and Patents Act 1988, without the prior permission of the publisher. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. Designations used by companies to distinguish their products are often claimed as trademarks. All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners. The publisher is not associated with any product or vendor mentioned in this book. This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold on the understanding that the publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional should be sought. Library of Congress Cataloging-in-Publication Data Cox, Christopher (Christopher Ian), 1965- An introduction to LTE : LTE, LTE-advanced, SAE and 4G mobile communications / Christopher Cox. p. cm. Includes bibliographical references and index. ISBN 978-1-119-97038-5 (cloth) 1. Long-Term Evolution (Telecommunications) 2. Mobile communication systems – Standards. I. Title. TK5103.48325.C693 2012 621.3845’6 – dc23 2011047216 A catalogue record for this book is available from the British Library. Print ISBN: 9781119970385 Set in 10/12 Times by Laserwords Private Limited, Chennai, India To my nieces, Louise and Zoe Contents Preface xvii Acknowledgements xix List of Abbreviations xxi 1 Introduction 1 1.1 Architectural Review of UMTS and GSM 1 1.1.1 High Level Architecture 1 1.1.2 Architecture of the Radio Access Network 2 1.1.3 Architecture of the Core Network 4 1.1.4 Communication Protocols 4 1.2 History of Mobile Telecommunication Systems 6 1.2.1 From 1G to 3G 6 1.2.2 Third Generation Systems 7 1.3 The Need for LTE 8 1.3.1 The Growth of Mobile Data 8 1.3.2 Capacity of a Mobile Telecommunication System 10 1.3.3 Increasing the System Capacity 11 1.3.4 Additional Motivations 11 1.4 From UMTS to LTE 11 1.4.1 High Level Architecture of LTE 11 1.4.2 Long Term Evolution 12 1.4.3 System Architecture Evolution 13 1.5 From LTE to LTE-Advanced 15 1.5.1 The ITU Requirements for 4G 15 1.5.2 Requirements of LTE-Advanced 15 1.5.3 4G Communication Systems 15 1.5.4 The Meaning of 4G 16 1.6 The 3GPP Specifications for LTE 16 References 18 2 System Architecture Evolution 21 2.1 Architecture of LTE 21 2.1.1 High Level Architecture 21 2.1.2 User Equipment 21 2.1.3 Evolved UMTS Terrestrial Radio Access Network 23 ... - tailieumienphi.vn
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