CAJ | 학술논문

在3G系统中，智能天线已得到了成熟而广泛的应用，但在TD-LTE系统中，它还存在一定的不足，不能满足4G网络的需求。为了尽可能提升TD-LTE系统的性能，文章从智能天线的信号模型、MIMO技术、波束赋形技术及算法等方面介绍了智能天线技术的优化方案，并对比了3G与4G系统中不同算法的优劣性，最后得出EBB算法在TD-LTE系统中有较好的特性，能够最大限度地提升TD-LTE系统的性能，从而满足用户的需求。
재3G계통중，지능천선이득도료성숙이엄범적응용，단재TD-LTE계통중，타환존재일정적불족，불능만족4G망락적수구。위료진가능제승TD-LTE계통적성능，문장종지능천선적신호모형、MIMO기술、파속부형기술급산법등방면개소료지능천선기술적우화방안，병대비료3G여4G계통중불동산법적우렬성，최후득출EBB산법재TD-LTE계통중유교호적특성，능구최대한도지제승TD-LTE계통적성능，종이만족용호적수구。
In 3G system,smart antenna has been a maturely and widely used,but in the TD-LTE system,it also poses a low, can not meet the requirements of the 4G network. In order to improve the performance of TD-LTE system as far as possible,this paper introduces the optimization scheme of the smart antenna technology from the aspects of smart antenna signal model, MIMO technology,beamforming technology and algorithm,and compares the advantage and disadvantage of different algor-ithms of 3G and 4G system. Lastly,the conclusion came the EBB algorithm has better performance in TD-LTE system,to up-grade the performance of TD-LTE system to the hilt,so as to meet the needs of users.