移动网络中的流媒体业务

Streaming Media Service in the Mobile Network

随着移动通信的迅速发展,人们不再满足于仅有的文本、声音、图像,而是希望得到声、文、图及视频流媒体信息。随着3G无线网络的应用,用户的网络带宽可以达到384kbit/s。这样移动运营商可以随时、随地为移动用户提供宽带数据发送及接收应用业务,而其中的流媒体业务则是不同于2G的占据重要地位的新业务。在此介绍了流媒体技术在无线网络中的应用,并对移动流媒体技术RTP、RTCP、RTSP、RSVP及媒体格式作了详细的分析,最后指出了移动流媒体在发展过程中出现的问题。

With the rapid development of mobile communications, people not only need text, voice and image, but also need multi-media information. With the application of 3G, the rates may arrive at 384kbit/s. Under the surroundings, mobile operator may service for mobile clients wherever and whenever. Mobile streaming media plays an important role in the various mobile incrmaent applications which is different from 2G.. This paper introduces the application of streaming media technology in mobile network, at the same time, it analyses the technologies about RTP; RTCP; RTSP; RSVP and the media format. Finally, the issue points out the problem of mobile streaming media.