Base knowledge about streaming media and WCDMA network is introduced first, then an architecture of streaming system in 3G network is proposed and research advances of several key problems in the architecture is introduced.

• 摘要介绍了流媒体和WCDMA网络的基础知识，提出了基于3G网络的流媒体系统的体系结构，介绍了其中若干关键问题的研究进展。