【摘要】 本文通过介绍移动宽带系统（ＭＢＳ）实验系统的空中接口和网络协议，指出了ＭＢＳ的关键技术及研究现状，着重强调了ＭＢＳ因数据传输速率高（１５５Ｍｂｉｔ／ｓ）所采取的与其它ＷＡＴＭ系统不同的技术。更多还原

【Abstract】 This article points out the key technologies and the current R&D level of the MBS by introducing the air interface and network protocol of the MBS demonstrator.Especially, we pay attention to the technologies which are different from those used in the other WATM communication systems, because the MBS has much higher data rate(155Mbit/s).更多还原