公开(公告)号：US08830907B2

公开(公告)日：2014-09-09

申请号：US13062184

申请日：2008-09-04

申请人： Bruno Melis ,  Rosalba Campanale ,  Alfredo Ruscitto ,  Federica Caldara

发明人： Bruno Melis ,  Rosalba Campanale ,  Alfredo Ruscitto ,  Federica Caldara

IPC分类号： H04W4/00 ,  H04B7/08 ,  H04B1/712 ,  H04B1/7105

CPC分类号： H04B7/0845 ,  H04B1/71055 ,  H04B1/712

摘要： Signals received from channels exposed to multi-path propagation via a plurality of diversity antennas and including at least one pilot signal are processed by detecting a set of multi-path components for each received signal and computing a set of channel coefficients from multi-path components of the at least one pilot signal in the set of multi-path components. The set of channel coefficients is organized as a channel coefficient vector. From the channel coefficient vector, a set of combining weights is estimated to be applied to the received signals by: computing a spatial correlation matrix of the channel coefficient vector by neglecting the correlations between multi-path components of the channel coefficient vector having different delays, whereby the correlation matrix is a block diagonal matrix including null coefficients other than for non-null sub-matrixes arranged along the diagonal of the correlation matrix, wherein the sub-matrixes have a size equal to the number of diversity antennas; deriving from the spatial correlation matrix a resulting matrix by calculating the inverse of the sub-matrixes or a scaled version thereof; and multiplying the resulting matrix and the channel coefficient vector in order to obtain the desired set of combining weights.

摘要翻译： 通过经由多个分集天线暴露于多路径传播并且包括至少一个导频信号的信道接收到的信号通过检测每个接收信号的多路径分量集合并且从多路径分量计算一组信道系数来处理 的多路径分量集合中的至少一个导频信号。 信道系数集合被组织为信道系数向量。 从信道系数向量，通过以下方式估计组合权重集合：通过忽略具有不同延迟的信道系数向量的多径分量之间的相关性来计算信道系数向量的空间相关矩阵， 由此相关矩阵是包括除了相关矩阵的对角线排列的非零子矩阵之外的空系数的块对角矩阵，其中子矩阵的大小等于分集天线的数量; 通过计算子矩阵的逆或其缩放版本从空间相关矩阵导出得到的矩阵; 并乘以所得到的矩阵和信道系数向量，以便获得期望的组合权重集合。

公开(公告)号：US20110158180A1

公开(公告)日：2011-06-30

申请号：US13062184

申请日：2008-09-04

申请人： Bruno Melis ,  Rosalba Campanale ,  Alfredo Ruscitto ,  Federica Caldara

发明人： Bruno Melis ,  Rosalba Campanale ,  Alfredo Ruscitto ,  Federica Caldara

IPC分类号： H04L27/06 ,  H04W4/00

CPC分类号： H04B7/0845 ,  H04B1/71055 ,  H04B1/712

摘要： Signals received from channels exposed to multi-path propagation via a plurality of diversity antennas and including at least one pilot signal are processed by detecting a set of multi-path components for each received signal and computing a set of channel coefficients from multi-path components of the at least one pilot signal in the set of multi-path components. The set of channel coefficients is organized as a channel coefficient vector. From the channel coefficient vector, a set of combining weights is estimated to be applied to the received signals by: computing a spatial correlation matrix of the channel coefficient vector by neglecting the correlations between multi-path components of the channel coefficient vector having different delays, whereby the correlation matrix is a block diagonal matrix including null coefficients other than for non-null sub-matrixes arranged along the diagonal of the correlation matrix, wherein the sub-matrixes have a size equal to the number of diversity antennas; deriving from the spatial correlation matrix a resulting matrix by calculating the inverse of the sub-matrixes or a scaled version thereof; and multiplying the resulting matrix and the channel coefficient vector in order to obtain the desired set of combining weights.

摘要翻译： 通过经由多个分集天线暴露于多路径传播并且包括至少一个导频信号的信道接收到的信号通过检测每个接收信号的多路径分量集合并从多路径分量计算一组信道系数来处理 的多路径分量集合中的至少一个导频信号。 信道系数集合被组织为信道系数向量。 从信道系数向量，通过以下方式估计组合权重集合：通过忽略具有不同延迟的信道系数向量的多径分量之间的相关性来计算信道系数向量的空间相关矩阵， 由此相关矩阵是包括除了相关矩阵的对角线排列的非零子矩阵之外的空系数的块对角矩阵，其中子矩阵的大小等于分集天线的数量; 通过计算子矩阵的逆或其缩放版本从空间相关矩阵导出得到的矩阵; 并乘以所得到的矩阵和信道系数向量，以便获得期望的组合权重集合。