UMTS

Based on the latest updates on the 3GPP specifications, this book investigates the differences of a GSM/GPRS network compared with a UMTS network as well as the technical aspects that ensure their interoperability. Written by experts in the field, this book gives detailed description of the elements in the UMTS network architecture: the User Equipment (UE), the UMTS Radio Access Network (UTRAN) and the core network. The completely new protocols based on the needs of the new Wideband Code Division Multiple Access (WCDMA) air interface are highlighted by considering both Frequency and Time-Division Duplex modes. The book further introduces the key features of existing topics in Releases 5, 6 and 7 such as High Speed Downlink Packet Access (HSDPA), IP Multimedia Subsystem (IMS), WLAN interconnection and Multicast/Broadcast Multimedia Subsystem (MBMS).

Evolution of cellular mobile systems. Network evolution from GSM to UMTS. Services in UMTS. UMTS core network. Spread spectrum and WCDMA. UTRAN access network. UTRA radio protocols. Call and mobility management. UTRA/FDD transmission chain. UTRA/FDD physical layer procedures. Measurements and procedures of the UE in RRC modes. UTRA/TDD mode. UMTS network evolution. Principles of HSDPA.