对信号进行预编码以在无线MIMO系统中传送的方法

申请公布号：CN102160346B

申请号：CN200980137264.9

申请日期：2009.09.14

申请公布日期：2014.09.24

申请人：

阿尔卡特朗讯美国公司

发明人：阿列克谢·阿希赫明

分类号：H04L25/03(2006.01)I

主分类号：H04L25/03(2006.01)I

代理机构：

北京市金杜律师事务所 11256

代理人：王茂华;黄倩

地址：美国新泽西州

摘要：这里讨论的方法提供了在传输之前用于对信号进行预编码的更有效的预编码矩阵。这里讨论的方法提高了无线MIMO系统中的吞吐量。这里讨论的方法可应用于频分复用(FDD)系统、时分复用(TDD)系统以及其它的无线通信系统。

主权项：一种用于对信号进行预编码以便传送的方法，所述方法包括：在基站(100，200，300)处根据估计信道矩阵<img file="FSB0000125288550000011.GIF" wi="123" he="60" />和信道估计误差矩阵<img file="FSB0000125288550000012.GIF" wi="359" he="80" />来产生信道矩阵(H₁，H₂，...H_L)；在基站处确定与所述估计信道矩阵和所述信道估计误差矩阵相关联的第一对角矩阵集和第二对角矩阵集(E_j，F_j)；在基站处，至少基于两个中间预编码矩阵计算参数(X，Y)来迭代计算预编码矩阵(G_k)，其中所述两个中间预编码矩阵计算参数(X，Y)中的第一中间预编码矩阵计算参数(X)至少基于所述信道矩阵(H₁，H₂，...H_L)、所述第二对角矩阵集(F_j)和加性噪声zi的方差来生成；并且两个中间预编码矩阵计算参数(X，Y)中的第二中间预编码矩阵计算参数(Y)基于所述信道矩阵(H₁，H₂，...H_L)和所述第一对角矩阵集(E_j)来生成；以及基于所述预编码矩阵，对信号(q₁，q₂，...，q_t)进行预编码以便传送。

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