[...]... the LTE – The UMTS Long Term Evolution: From Theory to Practice Stefania Sesia, Issam Toufik and Matthew Baker © 2009 John Wiley & Sons, Ltd ISBN: 978-0-470-69716-0 LTE – THE UMTS LONG TERM EVOLUTION 2 auspices of the European Telecommunications Standards Institute (ETSI), GSM became a robust, interoperable and widely-accepted standard Fuelled by advances in mobile handset technology, which resulted... successor, known as the Long- Term Evolution’ (LTE) LTE is the first cellular communication system optimized from the outset to support packet-switched data services, within which packetized voice communications are just one part Thus LTE can truly be said to be the heir to Marconi’s heritage – the system, unknown indeed to the luminaries of his day, to which his developments have led LTE is an enabler It... on the context The meaning is clearly indicated in the chapter when used 1 Introduction and Background Thomas Sälzer and Matthew Baker 1.1 The Context for the Long Term Evolution of UMTS 1.1.1 Historical Context The Long Term Evolution of UMTS is just one of the latest steps in an advancing series of mobile telecommunications systems Arguably, at least for land-based systems, the series began in 1947...CONTENTS xii 13.3 Cell Search 13.3.1 LTE Cell Search 13.3.2 UMTS Cell Search 13.3.3 GSM Cell Search 13.4 Measurements when Camped on LTE 13.4.1 LTE Measurements 13.4.2 UMTS FDD Measurements 13.4.3 UMTS TDD Measurements 13.4.4 GSM Measurements... 1 The maintenance and development of specifications for the GSM family was passed to 3GPP from ETSI LTE – THE UMTS LONG TERM EVOLUTION 4 The standardization of LTE and EPS does not mean that further development of the other radio access technologies in 3GPP has ceased In particular, the enhancement of UMTS with new releases of the specifications continues in 3GPP, to the greatest extent possible while... capabilities In the following section, the series of progressions which have succeeded GSM is outlined, culminating in the development of the system currently known as LTE – the Long Term Evolution of UMTS (Universal Mobile Telecommunications System) 1.1.2 LTE in the Mobile Radio Landscape In contrast to transmission technologies using media such as copper lines and optical fibres, the radio spectrum is a medium... on which LTE is founded and it is essential to draw on that research if any attempt is made to explain LTE to a wider audience The authors of this book have not only followed the LTE story from the beginning but many have also been active players in WCDMA and its predecessors, in which LTE has its roots xxii FOREWORD This book provides a thorough, authoritative and complete tutorial of the LTE system... in Release 8 in parallel to the first release of LTE (which for consistency is also termed Release 8) These backward-compatible enhancements will enable network operators who have invested heavily in the WCDMA technology of UMTS to generate new revenues from new features while still providing service to their existing subscribers using legacy terminals LTE is able to benefit from the latest understanding... level of functionality and flexibility, it is inevitable that the complexities of the LTE system have far surpassed anything Marconi could have imagined One aim of this book, therefore, is to chart an explanatory course through the LTE specifications, to support those who will design the equipment to bring LTE to fruition The LTE specification documents themselves do not tell the whole story Essentially they... all mobile radio standards In continuing the technology progression from the GSM and UMTS technology families within 3GPP, the LTE system can be seen as completing the trend of expansion of service provision beyond voice calls towards a multiservice air interface This was already a key aim of UMTS and GPRS/EDGE, but LTE was designed from the start with the goal of evolving the radio access technology .