This completely revised and updated edition of the highly successful UMTS Signaling provides a deep insight into all aspects of UMTS signalling. The chapter structure has been reworked for improved "usability" for readers, as well as including many new features and updates.The successful trial, deployment, operation and troubleshooting of 3G or UMTS infrastructures and applications is the biggest challenge facing today's mobile communications. Network element instability, network element and multi-vendor interoperability, configuration and network planning faults are just a few of the challenges affecting performance and profitability that need to be addressed. This book is an invaluable guide to resolving such problems.Highlights of the Second Edition: Includes new information and scenarios on HSPA / HSDPA / HSUPA, and IMS Covers not only WCDMA, but also TD-SCDMA issues Contains up-to-date information on releases 5 and 6, and includes a new chapter on the future releases 7 and 8 Provides crucial information for network operators and equipment suppliers keen to understand how to handle and analyse UMTS signaling procedures in order to get the network into operation, detect errors and troubleshoot faults Uses first hand, real world information to explain issues which are unclear in the standards Includes comprehensive descriptions and documentation of UMTS reference scenarios for different UMTS proceduresThe unified comprehensive approach taken by the authors makes this book essential reading for engineers in network operators, integrators or system suppliers who need to be at the cutting edge of this technology. It will also be an invaluable resource for postgraduates on telecommunications courses, especially those with a focus on signal analysis.

Ralf Kreher works as a Solution Architect for Tektronix’ Mobile Protocol Test (MPT) business with a focus on UMTS Performance Measurement and Key Performance Indicator (KPI) implementation. Previously hewas head of the MPT Customer Training Department for almost four years and was responsible for a world-class seminar portfolio for mobile technologies and measurement products. Before joining Tektronix, Kreher held a trainer assignment for switching equipment at Teles AG, Berlin.
Kreher holds a Communication Engineering Degree of the University of Applied Science, Deutsche Telekom Leipzig. He is internationally recognized as an author of the following books: UMTS Signaling (Wiley) and UMTS Performance Measurement. A Practical Guide to KPIs for the UTRAN Environment (Wiley). He currently resides in Germany.

Torsten Rüdebusch, Marcom Program Manager, Network Diagnostics, Tektronix, Inc., is responsible for outbound marketing activities of the Network Diagnostics product line. Previously he led the Knowledgeware and Training Department for Tektronix’ Mobile Protocol Test (MPT) business. There he was responsible for providing leading-edge technology and product seminars and the creation of knowledgeware products using Tektronix’ extensive expertise.
Before joining Tektronix, he held an application engineer assignment at Siemens CTE. He holds a Communication Engineering Degree from the Technical College Deutsche Telekom Berlin. R¨udebusch is internationally recogniz