公开(公告)号：US20100158162A1

公开(公告)日：2010-06-24

申请号：US12639046

申请日：2009-12-16

申请人： Masaaki FUJII

发明人： Masaaki FUJII

IPC分类号： H04B1/10 ,  H04L27/06

CPC分类号： H04L25/03299 ,  H04L25/0246 ,  H04L2025/03426

摘要： Disclosed is a QR decomposition device supporting interference whitening. The QR decomposition device supporting interference whitening may calculate a whitening matrix based on an interference channel matrix. The QR decomposition device supporting the interference whitening may simultaneously support interference whitening and detection of a transmission symbol vector through QR decomposition. A vector manufactured during the whitening and a result of the QR decomposition may be used for detecting the transmission symbol vector.

摘要翻译： 公开了一种支持干涉增白的QR分解装置。 支持干扰白化的QR分解装置可以基于干扰信道矩阵来计算白化矩阵。 支持干扰白化的QR分解装置可以通过QR分解同时支持干扰白化和发射符号向量的检测。 在白化期间制造的矢量和QR分解的结果可以用于检测发送符号向量。

公开(公告)号：US20090080579A1

公开(公告)日：2009-03-26

申请号：US12117917

申请日：2008-05-09

申请人： Masaaki FUJII

发明人： Masaaki FUJII

IPC分类号： H04L1/02 ,  H04B7/10

CPC分类号： H04B7/0814 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0663 ,  H04B7/0695 ,  H04L1/1893

摘要： A receiving apparatus includes a combining and quantizing unit that combines channel vectors corresponding to a combination of a plurality of antennas in order to generate a combination channel vector and selects a predetermined quantization vector according to the generated combination channel vector, an error detecting unit that detects whether there is an error in received signals, and an antenna switchover unit that switches over the combination of the antennas according to a result of the error detection, in which the combining and quantizing unit feeds an index of the selected predetermined quantization vector back to a transmitting apparatus. In this way, diversity effect can be obtained by means of repeat control while reducing the amount of feedback information.

摘要翻译： 接收装置包括组合量化单元，其组合与多个天线的组合对应的信道向量，以便生成组合信道向量，并根据所生成的组合信道向量选择预定的量化矢量;错误检测单元，其检测 接收信号是否存在误差，以及根据误差检测结果对天线的组合进行切换的天线切换单元，其中组合量化单元将所选择的预定量化矢量的索引返回给 发送装置。 以这种方式，通过重复控制可以获得分集效应，同时减少反馈信息的数量。

公开(公告)号：US20080316099A1

公开(公告)日：2008-12-25

申请号：US12111358

申请日：2008-04-29

申请人： Masaaki FUJII

发明人： Masaaki FUJII

IPC分类号： H01Q3/00

CPC分类号： H04B7/063 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626

摘要： A wireless transmitting method includes calculating a beamforming channel matrix which is a channel matrix generated at a time when a transmitting apparatus applies a beamforming matrix to a data signal and transmits the data signal to receiving apparatuses, selecting a parameter to be used while transmitting the data signal based on the beamforming channel matrix and noise information fed back from the receiving apparatuses, and transmitting the data signal by using the selected parameter.

摘要翻译： 无线发送方法包括：计算波束形成信道矩阵，该波束成形信道矩阵是当发送装置将波束成形矩阵应用于数据信号时产生的信道矩阵，并将数据信号发送到接收装置，在发送数据时选择要使用的参数 基于从接收装置反馈的波束成形信道矩阵和噪声信息的信号，以及通过使用所选择的参数来发送数据信号。

公开(公告)号：US20080043864A1

公开(公告)日：2008-02-21

申请号：US11764464

申请日：2007-06-18

申请人： Masaaki FUJII

发明人： Masaaki FUJII

IPC分类号： H04L27/28

CPC分类号： H04L25/067 ,  H04B7/0413 ,  H04L1/0045 ,  H04L25/0204

摘要： A communication apparatus, method, and system are provided. The communication apparatus receives through a transmission path a combined signal in which modulated signals are combined. The communication apparatus converts a channel matrix indicating transmission characteristics of the transmission path using a basis conversion matrix which converts column vectors forming the channel matrix to cross at right angles, estimates a transmission symbol using the converted channel matrix, and calculates a likelihood of each bit of the estimated transmission symbol being a “1” and a “0”, respectively, using an inverse matrix of the basis conversion matrix. The method includes converting a channel matrix; estimating a transmission symbol; and calculating a likelihood of each bit being a “1” and a “0”, respectively, of the estimated transmission symbol using a basis conversion matrix. The system includes a transmitter and receiver for transmitting and receiving, respectively, a combined signal according to the method.

摘要翻译： 提供一种通信装置，方法和系统。 通信装置通过传输路径接收组合信号，其中调制信号被组合。 通信装置使用基本转换矩阵来转换指示传输路径的传输特性的信道矩阵，该矩阵将形成信道矩阵的列向量直角交叉，使用转换的信道矩阵估计传输符号，并且计算每个位的似然性 的估计传输符号分别为“1”和“0”，使用基本转换矩阵的逆矩阵。 该方法包括：转换信道矩阵; 估计传输符号; 以及使用基本转换矩阵分别计算估计的发送符号的每个比特为“1”和“0”的似然性。 该系统包括用于分别根据该方法发送和接收组合信号的发射机和接收机。