Các mạng UTMS và công nghệ truy cập vô tuyến P6
SERVICE COMPONENTS IN UMTS
BACKGROUND
UMTS services will not only offer mobile services supported by 2nd generation systems such as GSM, but will also expand these services to higher rates and greater flexibility. The services evolving in the GSM platform through its Circuit Switched (CS) and Packet Switched (PS) services will continue in UMTS while new services are introduced.