TD-SCDMA标准,介绍了3G网络结构,接入网的基本结构,物理层,无线接口协议,无线射频特性,无线资源管理,HSDPA,灵活的组网方式等.-TD-SCDMA standards, introduction of the 3G network architecture, the basic structure of access networks, physical layer, wireless interface protocol, wireless radio characteristic