Worldwide Interoperability for Microwave Access (WiMAX) technology has rapidly developed in recent years. It is becoming one of the hotspots among broadband wir
The Network Attachment Subsystem (NASS) is introduced to the Next Generation Network (NGN) architecture to enable services independent from access networks and
Time Division-Synchronous Code Division Multiple Access (TD-SCDMA),a home-grown standard for the third generation mobile communications,is already mature and re