This paper has described in detail the key technologies of TD-SCDMA high speed downlink packet access ( HSDPA ), and compared HSPDA with WCDMA .
对TD-SCDMA高速下行分组接入技术（HSDPA）中的关键技术作了详细的描述，并与WCDMA高速下行分组接入技术作了比较。
HSPDA