Read more
Informationen zum Autor Pablo Tapia is a Principal Engineer at T-Mobile, US. He delivers consultancy services to T-Mobile USA within the Network Evolution and Strategy Group at T-Mobile Headquarters, working closely with Nokia and Ericsson. Before moving to the US he was Lead Consultant at Optimi in Spain, where he supplied T-Mobile International (15+ operators) with a corporate solution for WCDMA Optimization, including RF planning and optimization. Previous to this he set up Nokia Networks R&D center in China. He has a multidisciplinary background, including experience in R&D in network vendors, software development and operator experience, with contribution to multiple papers, and co-designer of several patents. He is a contributor to two Wiley books. Jun Liu is also a Principal Engineer at T-Mobile, US. He has co-authored a number of papers with Pablo Tapia. Klappentext Written from an operator's viewpoint, HSPA Performance and Evolution explores the lessons learned and techniques developed for optimally deploying HSPA (High Speed Packet Access). The essential distinctions between rolling out HSPA compared to earlier UMTS and GSM technologies are explained covering the many issues that must be specifically handled. Areas in standards which have been left open for interpretation, causing significant differences between vendor implementations, are identified and solutions explored.This book is invaluable in enabling wireless operators to extract maximum performance offered by 3GPP's HSPA radio technology, consisting of both downlink (HSDPA) and uplink (HSUPA) elements. It focuses on real-world performance, sharing practical implementation methods and tradeoffs for deploying, optimizing and maintaining networks using the HSPA air interface.* Examines algorithms, equipment and performance perspectives to identify and explain HSPA* Measures performance and sets network parameters for optimal tradeoffs* Presents results from practical and real-world network performances* Explores the evolution of HSPA technology into HSPA+ and eventually next generation LTE technologies Zusammenfassung Written from an operator's viewpoint, HSPA Performance and Evolution explores the lessons learned and techniques developed for optimally deploying HSPA (High Speed Packet Access). Inhaltsverzeichnis Figures and Tables. About the Authors. Preface. Foreword. Acknowledgements. 1 Introduction. 1.1 Services and Applications for HSPA. 1.2 Organization of the Book. References. 2 Overview of UMTS/HSPA Systems. 2.1 UMTS: GSM Evolution to 3G Networks. 2.1.1 Overview of UMTS Standardization. 2.1.2 UMTS Network Architecture. 2.1.3 Air Interface Technology. 2.2 UMTS System Elements. 2.2.1 User Equipment (UE). 2.2.2 Node-B. 2.2.3 Radio Network Controller (RNC). 2.3 UMTS Radio Bearers and Services. 2.3.1 Information Transfer Attributes. 2.3.2 Quality of Service (QoS) Attributes. 2.4 HSDPA (High Speed Downlink Packet Access). 2.4.1 Motivation for the Introduction of HSDPA. 2.4.2 Main HSDPA Features. 2.5 HSUPA (High Speed Uplink Packet Access). 2.5.1 Main HSUPA Features. 2.6 Summary. References. 3 Applications and Quality of Service in HSPA Networks. 3.1 Application Performance Requirements. 3.1.1 The Role of Latency in End-user Performance. 3.1.2 Considerations of TCP/IP. 3.1.3 Typical Application Profiles. 3.2 Support of QoS in HSPA Networks. 3.2.1 3GPP QoS Attributes. 3.2.2 Negotiation of QoS Attributes. 3.2.3 QoS Modification for HSPA. 3.3 Summary. References. 4 Radio Resource Management in UMTS/HSPA Networks. 4.1 Admission and Congestion Control. 4.1.1 Management ...
