多点协作传输中的联合传输方法  

Joint Transmission Method for Coordinated Multi-Point Transmission and Reception

作　　者：孙云锋[1] 姜静[1] 胡留军[1] 

机构地区：[1]中兴通讯股份有限公司产品市场体系,广东深圳518004

出　　处：《中兴通讯技术》2010年第1期40-43,共4页ZTE Technology Journal

基　　金：国家科技重大专项课题(2009ZX03003)

摘　　要：文章提出了一种多点协作传输中多点联合传输的方法,该方案将空时/频编码与波束赋形技术以及预编码技术与波束赋形技术相结合,首先进行空时/频编码和预编码处理,并将经过处理后获得的多路数据分别通过波束赋形映射到多个协作节点进行传输;然后通过空时/频编码与波束赋形技术的结合,接收方获得更大的分集增益,同时获得波束赋形增益;最后将预编码处理与波束赋形应用到多点协作中,使得各个发送节点的信号在接收方合并,从而使得各层之间的信号更加独立,并获得波束赋形增益。In this paper, we propose a multi-point joint transmission method for Coordinated Multi-Point （CoMP） transmission and reception system. This solution combines beamforming with both space time/frequency coding and pre-coding technologies. The multi-path data obtained by space time/frequency coding and pre-coding will be mapped by beamforming technology to multiple coordinated nodes for transmission. The signal receiver can get bigger diversity gain and beamforming gain as well through the combination of space time/frequency coding and beamforming. Moreover, precoding and beamforming can help the signals transmitted from separated nodes in CoMP system combined at the receiver, which makes the signals at different layers more independent and obtains beamforming gain.

关 键 词：多点协作传输 多点联合传输 空时/频编码 波束赋形 预编码 

分 类 号：TN929.5[电子电信—通信与信息系统]