The Design And Implementation Of Multimedia Ring Back Tone Service In The Third Generation Mobile Communications

With the rapid development of mobile communications, many organizations for standardization and countries are concentrating on the research of standards and technologies of 3G (3rd Generation Mobile Communications). Meanwhile, 3G networks have been launched and providing commercial services in Japan, Korea, Europe and USA. As one of the three mainstream wireless interface standards recognized by the ITU (International Telecommunication Union) for 3G mobile communication technologies, WCDMA (Wideband Code Division Multiple Access) system, which is mature technology and deployed widely, inherits the benefits of standardization and open networks from the GSM system.It is preponderant that more band-wide, faster speed, more powerful capability and richer display can be provided in 3G systems than that in 2G networks. Based on this predominance of technologies, A great diversity and individuation of applications and services on 3G networks has strong attraction to mobile users based on this predominance of technologies, which brings fire-new life style and exciting feeling to everyone enjoying these services of 3G All of this has become the source of particular charm for users to enjoin the services provided on 3G network.Services and markets drive the development of the 3G, which is known well to the industry. With the construction of 3G networks, spring...