TD-SCDMA系统及其演进  

TD-SCDMA System and Its Evolution

作　　者：罗新[1] 王海荣[1] 

机构地区：[1]东南大学移动通信国家重点实验室,南京江苏210096

出　　处：《山西电子技术》2006年第4期50-51,共2页Shanxi Electronic Technology

摘　　要：TD-SCDMA(时分-同步码分多址)是我国提出的具有自主知识产权的3G标准,它和CDMA2000、WCDMA同为ITU确定的3G三大主流标准。首先简要介绍了TD-SCDMA系统的特点,然后分析了TD-SCDMA的增强型技术HSDPA(高速下行链路分组接入)。HSDPA是3GPP为了满足上下行数据业务不对称的需求提出的一种新技术,它大大地增加了下行数据业务的传输速率。最后介绍了TD-SCDMA的长期演进(LTE)。As a standard of 3G proposed by China with proprietary intellectual property rights, TD-SCDMA is a standard among the main three standards of 3G with CDMSA2000 and WCDMA. In this paper, TD-SCDMA system and its characteristic are firstly introduced. Then as the enhancement technology of TD-SCDMA, HSDPA is analyzed. HSDPA is a new technology formulated by 3GPP to meet different needs between uplink and downlink service, and it increases downlink data rate greatly. Finally, the paper introduces the LTE （long term evolution） of TD-SCDMA.

关 键 词：TD-SCDMA HSDPA LTE AMC HARQ 

分 类 号：TN914[电子电信—通信与信息系统]