Translated from the second edition of a successful French publication, this book has been thoroughly updated to include full coverage of the new UMTS standard. It looks at the topic from a system's point of view and covers both the architecture and the techniques employed in the UMTS network. The introductory chapters cover the origins of UMTS and its relation to the other third generation technologies. The later chapters are more technical and describe different aspects such as the architecture, the structure of the radio interface, the protocols used and the importance of the GSM inheritance.