01398nam a2200205Ia 4500 CTU_133235 210402s9999 xx 000 0 und d 112.17 621.38456 S211 Sanchez, Javier UMTS Javier Sanchez, Mamadou Thioune Newport Brach, CA ISTE Ltd. 2007 During the first decade of this new millennium, it is estimated that more than €100 billion will be invested in the third generation (3G) Universal Mobile Telecommunications System (UMTS) in Europe. This fact represents an amazing challenge from both a technical and commercial perspective. Written by experts in the field, this book gives a 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. Universal Mobile Telecommunications System,Hệ thống công nghệ viễn thông di động 3G Trọng Hiếu Trung tâm Học liệu Trường Đại học Cần Thơ