联合传输技术在FDD模式中的应用  

Joint Transmission (JT) Application in the Frequency Division Duplex (FDD) Mode

作　　者：冯媛[1] 杨永双[1] 陈晓雷[1] 李娜娜[1] 

机构地区：[1]郑州轻工业学院计算机与通信工程学院,河南郑州450002

出　　处：《通信技术》2007年第10期12-13,16,共3页Communications Technology

摘　　要：在由中国提出的第三代无线标准TD-SCDMA系统中,联合检测被列为其中一个关键技术。针对联合检测技术的计算复杂度比较大,很难提高系统容量等问题,P.W.Baier等人提出了一种新的适用于TD-CDMA系统下行链路的技术——联合传输。文中给出了联合传输技术在FDD模式中应用的解决方案:通过终端反馈信息,在基站做信道预估计。In the TD-SCDMA system of the 3G radio standard,Joint Detection is ranked one of key technologies. However the computational complexity of JD is high,and hard to increase the system capacity,especially for the downlink. To overcome the above described drawbacks,P.W.Baier and other researchers propose a novel multi-user transmission scheme for the downlink of TD-CDMA termed joint transmission (JT). This paper discusses the application of JT technology in the FDD system,and proposes a new solution: Through feedback signal,channel pre-estimation is accomplished at the base station.

关 键 词：联合检测 联合传输 信道估计 

分 类 号：TN914.53[电子电信—通信与信息系统]