TD-SCDMA终端通用分组业务网络层研究

Study on network layer in general packet radio service of TD-SCDMA system

第三代移动通信系统同时支持无线接口不同的高低数据比特率,可变的高速数据率是第三代移动通信系统主要的技术特征之一,作为TD-SCDMA移动通信系统采用的通用无线分组业务(TD-PRS)使这一重要特征的实现成为可能,利用TD-PRS可以实现全球范围的Internet接入。主要讨论了在构建TD-PRS的业务网络层时可能采用基于IP协议服务的网络层和基于PPP协议服务的网络层2种方案,并且对这些方案做了SDL的仿真,这2种方案都可以实现Internet的接入。

The 3^(rd) Generation Mobile Communication System can support higher or lower data bit rate for different radio interfaces. Alterable high rate of data is one of the most important features of 3^(rd) generation mobile communication system. As general packet radio service adopted by TD-SCDMA, TD-PRS can make it possible to realize the important feature. It's also possible to access to Internet on a worldwide scale by means of TD-PRS. In this paper,the authors discuss two schemes that can design the operation network layer of TD-PRS. And the authors make simulations by SDL for the two shemes.