公开(公告)号：US07492844B2

公开(公告)日：2009-02-17

申请号：US10808554

申请日：2004-03-25

申请人： Kimmo Kansanen ,  Tadashi Matsumoto

发明人： Kimmo Kansanen ,  Tadashi Matsumoto

IPC分类号： H04B1/10

CPC分类号： H04L25/03012 ,  H04L25/0244 ,  H04L25/0246 ,  H04L2025/03605

摘要： The invention is related to an equalizer comprising, for instance: means for creating a first covariance matrix and defining a Cholesky decomposition matrix of an inverse matrix of the first covariance matrix, means for removing selected covariance components from the Cholesky decomposition matrix, means for computing the inverse of a sub-matrix, which represents the common part of the first covariance matrix and a second covariance matrix, which includes covariance estimates of a second observation time, by using the aid of the Cholesky decomposition of the inverse matrix of the first covariance matrix, means for estimating interference from a received signal at a second observation time and determining additional covariance components on the basis of the estimation and means for creating the Cholesky decomposition of the inverse matrix of the second covariance matrix by using unitary rotations.

摘要翻译： 本发明涉及一种均衡器，其包括例如：用于创建第一协方差矩阵并且定义第一协方差矩阵的逆矩阵的Cholesky分解矩阵的装置，用于从Cholesky分解矩阵中去除所选协方差分量的装置，用于计算 通过使用第一协方差的逆矩阵的Cholesky分解，代表第一协方差矩阵的公共部分的逆矩阵和包括第二观察时间的协方差估计的第二协方差矩阵 矩阵，用于在第二观察时间估计来自接收信号的干扰的装置，并且基于估计确定附加的协方差分量，以及通过使用单位旋转来创建第二协方差矩阵的逆矩阵的Cholesky分解的装置。

公开(公告)号：US07466779B2

公开(公告)日：2008-12-16

申请号：US10606288

申请日：2003-06-26

申请人： Markku Juntti ,  Kimmo Kansanen

发明人： Markku Juntti ,  Kimmo Kansanen

IPC分类号： H04B1/10

CPC分类号： H04L25/0202

摘要： The invention relates to a method, a prefiltering arrangement and a base station for implementing an adaptive channel estimator. The method comprises determining from a received signal at least one variable representing statistical characteristics of a channel, determining a prefilter by means of the at least one variable representing the statistical characteristics of the channel, and adapting the prefilter output sample rate for the channel estimator.

摘要翻译： 本发明涉及一种实现自适应信道估计的方法，预滤波装置和基站。 该方法包括从接收信号确定表示信道的统计特性的至少一个变量，借助于表示信道的统计特性的至少一个变量来确定预滤波器，以及调整信道估计器的预滤波器输出采样率。

公开(公告)号：US07447285B2

公开(公告)日：2008-11-04

申请号：US10640566

申请日：2003-08-14

申请人： Tadashi Matsumoto ,  Kimmo Kansanen ,  Mariella Särestöniemi

发明人： Tadashi Matsumoto ,  Kimmo Kansanen ,  Mariella Särestöniemi

IPC分类号： H03D1/04 ,  H03D1/06

CPC分类号： H04L1/06

摘要： A data processing method in a receiver of a communication system, a receiver and a network element is provided. A receiver of a communication system includes: means for estimating interference of a received signal, means for formulating components of an interference covariance matrix from the received signal, means for carrying out iterative calculation by a systolic array where partial computational results are forwarded from one calculation module to the next calculation module so that the result of the iterative calculation being the inverse matrix of the interference covariance matrix, wherein the inverse matrix is used in channel equalization.

摘要翻译： 提供了通信系统，接收机和网元的接收机中的数据处理方法。 通信系统的接收机包括：用于估计接收信号的干扰的装置，用于从接收信号中制定干扰协方差矩阵的分量的装置，用于通过收敛阵列进行迭代计算的装置，其中部分计算结果从一个计算 模块到下一个计算模块，使得迭代计算的结果是干扰协方差矩阵的逆矩阵，其中逆矩阵用于信道均衡。

公开(公告)号：US20050175131A1

公开(公告)日：2005-08-11

申请号：US10808554

申请日：2004-03-25

申请人： Kimmo Kansanen ,  Tadashi Matsumoto

发明人： Kimmo Kansanen ,  Tadashi Matsumoto

IPC分类号： H04B20060101 ,  H04B1/10 ,  H04L25/02 ,  H04L25/03

CPC分类号： H04L25/03012 ,  H04L25/0244 ,  H04L25/0246 ,  H04L2025/03605

摘要： The invention is related to an equalizer comprising, for instance: means for creating a first covariance matrix and defining a Cholesky decomposition matrix of an inverse matrix of the first covariance matrix, means for removing selected covariance components from the Cholesky decomposition matrix, means for computing the inverse of a sub-matrix, which represents the common part of the first covariance matrix and a second covariance matrix, which includes covariance estimates of a second observation time, by using the aid of the Cholesky decomposition of the inverse matrix of the first covariance matrix, means for estimating interference from a received signal at a second observation time and determining additional covariance components on the basis of the estimation and means for creating the Cholesky decomposition of the inverse matrix of the second covariance matrix by using unitary rotations.

摘要翻译： 本发明涉及一种均衡器，其包括例如：用于创建第一协方差矩阵并且定义第一协方差矩阵的逆矩阵的Cholesky分解矩阵的装置，用于从Cholesky分解矩阵中去除所选协方差分量的装置，用于计算 通过使用第一协方差的逆矩阵的Cholesky分解，代表第一协方差矩阵的公共部分的逆矩阵和包括第二观察时间的协方差估计的第二协方差矩阵 矩阵，用于在第二观察时间估计来自接收信号的干扰的装置，并且基于估计确定附加的协方差分量，以及通过使用单位旋转来创建第二协方差矩阵的逆矩阵的Cholesky分解的装置。