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Essentials of UMTS


  • 18 tables
  • Page extent: 256 pages
  • Size: 228 x 152 mm
  • Weight: 0.53 kg


 (ISBN-13: 9780521889315)

Essentials of UMTS
Cambridge University Press
9780521889315 - Essentials of UMTS - By Christopher Cox

Essentials of UMTS

The third generation (3G) cellular system UMTS is advanced, optimised and complex. The many existing books on UMTS attempt to explain all the intricacies of the system, and as a result are large and equally complex. This book takes a different approach and explains UMTS in a concise, clear and readily understandable style.

Written by a professional technical trainer, and based on training courses delivered on UMTS to telecommunication companies worldwide, Essentials of UMTS will enable you to grasp the key concepts quickly. It assumes no previous knowledge of mobile telecommunication theory, and is structured around the operation of the system, clearly setting out how the different components interact with each other, and how the system as a whole behaves. Engineers, project managers and marketing executives working for equipment manufacturers and network operators will find this concise guide to UMTS invaluable.

Christopher Cox is a technical consultant and trainer in mobile telecommunications for his business Chris Cox Communications Limited. He has a degree in Physics and a Ph.D. in Radio Astronomy from the University of Cambridge, and 15 years? experience in scientific and technical consultancy, telecommunications and training.

The Cambridge Wireless Essentials Series

Series Editors

William Webb

Ofcom, UK

Sudhir Dixit

A series of concise, practical guides for wireless industry professionals.

Martin Cave,Chris Doyle and William Webb, Essentials of Modern Spectrum Management

Christopher Haslett, Essentials of Radio Wave Propagation

Stephen Wood andRoberto Aiello, Essentials of UWBChristopher Cox, Essentials of UMTS


Steve Methley, Essentials of Wireless Mesh Networking

Linda Doyle, Essentials of Cognitive Radio

David Crawford, Essentials of Mobile Television

Malcolm Macleod andIan Proudler, Essentials of Smart Antennas and MIMO

Albert Guillén í Fàbregas, Essentials of Error Correction for Wireless CommunicationsFor further information on any of these titles, the series itself and ordering information see

Essentials of UMTS

Christopher Cox

Chris Cox Communications

Cambridge, New York, Melbourne, Madrid, Cape Town, Singapore, São Paulo, Delhi

Cambridge University Press
The Edinburgh Building, Cambridge CB2 8RU, UK

Published in the United States of America by Cambridge University Press, New York
Information on this title:

© Cambridge University Press 2008

This publication is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University Press.

First published 2008

Printed in the United Kingdom at the University Press, Cambridge

A catalogue record for this publication is available from the British Library

Library of Congress Cataloguing in Publication data

Cox, Christopher.
Essentials of UMTS / Christopher Cox.
p. cm.
Includes bibliographical references and index.
ISBN 978-0-521-88931-5 (hardback) 1. Mobile communication systems. 2. Wireless communication systems. 3. Global system for mobile communications. I. Title.
TK6570.M6C69 2008

ISBN 978-0-521-88931-5 hardback

Cambridge University Press has no responsibility for the persistence or accuracy of URLs for external or third-party internet websites referred to in this publication, and does not guarantee that any content on such websites is, or will remain, accurate or appropriate.

To my Mother and Father


1       Introduction to mobile telecommunications
1.1     Architecture of a mobile telecommunication system
1.2     Communication networks
1.3     Digital wireless communications
1.4     History of mobile telecommunication systems
2       Introduction to UMTS
2.1     The 3rd Generation Partnership Project
2.2     System architecture
2.3     Interfaces and protocols
2.4     UMTS data streams
2.5     Frequency allocation
3       Radio transmission and reception
3.1     Radio transmission and reception in release 99
3.2     High speed packet access
3.3     Performance of UMTS
4       Operational procedures
4.1     Management of signalling connections
4.2     Power-on procedures
4.3     Security procedures
4.4     Procedures in idle mode and common channel states
4.5     Procedures in CELL_DCH state
4.6     Power-off procedures
5       Services and their implementation
5.1     Service classification
5.2     Quality of service
5.3     Voice calls
5.4     GPRS
5.5     Other user and bearer services
5.6     Toolkits
5.7     Charging and billing
6       Future developments
6.1     The IP multimedia subsystem
6.2     Long Term Evolution
6.3     Towards 4G
List of abbreviations


This book is about the Universal Mobile Telecommunication System (UMTS). UMTS is the most important of the third generation (3G) mobile phone systems, which are gradually replacing the older second generation systems such as the Global System for Mobile Communications (GSM). 3G systems provide much faster communications than their predecessors, and this allows them to offer the user a wider range of services than before, such as high speed Internet access, video and interactive games.

My aim in this book has been to write a technical introduction to UMTS. As an important part of this, I have tried to give the reader a system level understanding of what all the different parts of UMTS are, and how they relate to each other. Such an understanding is hard to gain from the UMTS specifications or from the more specialised books on the subject, but is precisely what the newcomer to the system needs.

At the same time, I have kept the book short enough that it can be read cover to cover in a weekend. To do this, I have consciously left out many of the details that can be found in the specifications or in some of the other technical books on the subject. Accordingly, you won’t find in this book an exhaustive description of issues such as the bit layouts in the physical channels, the contents of the system information blocks or the different types of measurement event. Rather, you will get an understanding of what those concepts are, see some examples, and gain enough knowledge to approach one of the more detailed treatments with confidence.

The book is intended for people who are new to the system, such as engineers, managers and marketing executives; it will also be valuable for those who are experienced in one part of the system but want an appreciation of what is going on elsewhere. Although it’s written as a graduate level book, it assumes no previous knowledge of mobile telecommunication theory or of particular systems such as UMTS or GSM. The mathematical treatment is kept at a basic level, although an understanding of complex numbers and decibel notation will be helpful in the parts that deal with radio communications. The material goes up to the end of release 7 of the UMTS specifications, with an initial look at the issues that are being addressed in release 8.

UMTS is riddled with terminology and abbreviations, which can be a barrier to a newcomer’s understanding of the subject. Although they are unavoidable, I have tried to assist the reader by putting new terms and abbreviations in italics, and by drawing attention to the terms that are particularly important for this book.

Outline of the book

The first two chapters are introductory ones. Chapter 1 is an overview of mobile telecommunication technology, which provides the background information that will be needed by those who are new to the subject. The issues covered include radio transmission and reception, communication protocols, and the history of mobile telecommunication systems. Chapter 2 describes the system level architecture of UMTS, by looking at the hardware components that make up the system, and the software protocols that they use to communicate with each other. Its aim is to provide the reader with a framework for the later, more detailed aspects of the book.

Chapter 3 describes the techniques used for radio transmission and reception between the mobile phone and the network. The main focus is on the technology used by the air interface, which is known as wideband code division multiple access (W-CDMA). The chapter also discusses the data rates that can be reached using UMTS, and the more recent enhancements to the air interface such as high speed packet access (HSPA).

The next two chapters discuss the higher level operation of UMTS. Chapter 4 looks at the procedures that control the operation of the mobile phone, and the signalling messages that are exchanged between the mobile phone and the network. Chapter 5 then looks at the implementation of services in UMTS. It covers voice and the general packet radio service (GPRS) in some detail, and then moves on to a higher level account of other services such as the short message service (SMS).

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