公开(公告)号：US08509336B2

公开(公告)日：2013-08-13

申请号：US12740896

申请日：2008-06-24

申请人： Choong il Yeh ,  In-Kyeong Choi ,  Young Seog Song ,  Seung Joon Lee ,  Byung-Jae Kwak ,  Ji Hyung Kim ,  Dong Seung Kwon ,  Joon Doo Kim ,  Ji Won Kang ,  Chung Yong Lee

发明人： Choong il Yeh ,  In-Kyeong Choi ,  Young Seog Song ,  Seung Joon Lee ,  Byung-Jae Kwak ,  Ji Hyung Kim ,  Dong Seung Kwon ,  Joon Doo Kim ,  Ji Won Kang ,  Chung Yong Lee

IPC分类号： H04L1/02

CPC分类号： H04B7/0413 ,  H04B7/0465 ,  H04L25/03343 ,  H04L2025/0342 ,  H04L2025/03426

摘要： Disclosed is a transmitting/receiving method in a multi-user multiple-input multiple-output (MU-MIMO) channel. The transmitting method includes: performing QR decomposition on a Hermitian transpose matrix of a channel matrix to obtain a first matrix and a second matrix as a triangular matrix; obtaining a preprocessing matrix by using the first matrix; and forming an effective channel based on the preprocessing matrix by a block triangulation technique.

摘要翻译： 公开了一种多用户多输入多输出（MU-MIMO）信道中的发送/接收方法。 发送方法包括：对信道矩阵的厄米转置矩阵执行QR分解以获得第一矩阵和第二矩阵作为三角矩阵; 通过使用第一矩阵获得预处理矩阵; 并通过块三角测量技术形成基于预处理矩阵的有效信道。

公开(公告)号：US20100310001A1

公开(公告)日：2010-12-09

申请号：US12740896

申请日：2008-06-24

申请人： Choong il Yeh ,  In-Kyeong Choi ,  Young Seog Song ,  Seung Joon Lee ,  Byung-Jae Kwak ,  Ji Hyung Kim ,  Dong Seung Kwon ,  Joon Doo Kim ,  Ji Won Kang ,  Chung Yong Lee

发明人： Choong il Yeh ,  In-Kyeong Choi ,  Young Seog Song ,  Seung Joon Lee ,  Byung-Jae Kwak ,  Ji Hyung Kim ,  Dong Seung Kwon ,  Joon Doo Kim ,  Ji Won Kang ,  Chung Yong Lee

IPC分类号： H04L1/02

CPC分类号： H04B7/0413 ,  H04B7/0465 ,  H04L25/03343 ,  H04L2025/0342 ,  H04L2025/03426

摘要： Disclosed is a transmitting/receiving method in a multi-user multiple-input multiple-output (MU-MIMO) channel. The transmitting method includes: performing QR decomposition on a Hermitian transpose matrix of a channel matrix to obtain a first matrix and a second matrix as a triangular matrix; obtaining a preprocessing matrix by using the first matrix; and forming an effective channel based on the preprocessing matrix by a block triangulation technique.

摘要翻译： 公开了一种多用户多输入多输出（MU-MIMO）信道中的发送/接收方法。 发送方法包括：对信道矩阵的厄米转置矩阵执行QR分解以获得第一矩阵和第二矩阵作为三角矩阵; 通过使用第一矩阵获得预处理矩阵; 并通过块三角测量技术形成基于预处理矩阵的有效信道。

公开(公告)号：US08718167B2

公开(公告)日：2014-05-06

申请号：US12677412

申请日：2008-09-10

申请人： Choong il Yeh ,  Dong Seung Kwon ,  Jee Hwan Ahn

发明人： Choong il Yeh ,  Dong Seung Kwon ,  Jee Hwan Ahn

IPC分类号： H04B7/02 ,  H04B1/38 ,  H04W4/00

CPC分类号： H04L25/0224 ,  H04B7/0452 ,  H04B7/0626 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0204 ,  H04L43/50

摘要： Disclosed is a method for channel estimation and feedback in a wireless communication system that estimates a channel for each transmission antenna using an orthogonal frequency division multiplexing (OFDM) impulse signal. A method for channel estimation in a wireless communication system includes causing a base station to generate a training signal with a specific waveform for each transmission antenna and to transmit the generated training signal to terminals; causing the terminals to acquire a downlink channel impulse response for each transmission antenna of the base station using the training signal transmitted from the base station; causing the terminals to acquire a downlink channel characteristic for each transmission antenna of the base station using the acquired channel impulse response; causing the terminal to feed back the acquired downlink channel characteristic information to the base station; and causing the base station to perform fast Fourier transform (FFT) on the downlink channel information transmitted from the terminals to indirectly acquire full channel status information (CSI).

摘要翻译： 公开了一种用于使用正交频分复用（OFDM）脉冲信号估计每个发射天线的信道的无线通信系统中的信道估计和反馈的方法。 一种在无线通信系统中进行信道估计的方法，包括：使基站产生具有针对每个发射天线的特定波形的训练信号，并将生成的训练信号发射到终端; 使得终端使用从基站发送的训练信号来获取基站的每个发射天线的下行链路信道脉冲响应; 使得所述终端使用所获取的信道脉冲响应来获取所述基站的每个发送天线的下行链路信道特性; 使所述终端将所获取的下行链路信道特性信息反馈给所述基站; 并且使得基站对从终端发送的下行链路信道信息执行快速傅里叶变换（FFT）以间接获取全信道状态信息（CSI）。

公开(公告)号：US20100316145A1

公开(公告)日：2010-12-16

申请号：US12677412

申请日：2008-09-10

申请人： Choong il Yeh ,  Dong Seung Kwon ,  Jee Hwan Ahn

发明人： Choong il Yeh ,  Dong Seung Kwon ,  Jee Hwan Ahn

IPC分类号： H04L27/28 ,  H04L27/00

CPC分类号： H04L25/0224 ,  H04B7/0452 ,  H04B7/0626 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0204 ,  H04L43/50

摘要： Disclosed is a method for channel estimation and feedback in a wireless communication system that estimates a channel for each transmission antenna using an orthogonal frequency division multiplexing (OFDM) impulse signal. A method for channel estimation in a wireless communication system includes causing a base station to generate a training signal with a specific waveform for each transmission antenna and to transmit the generated training signal to terminals; causing the terminals to acquire a downlink channel impulse response for each transmission antenna of the base station using the training signal transmitted from the base station; causing the terminals to acquire a downlink channel characteristic for each transmission antenna of the base station using the acquired channel impulse response; causing the terminal to feed back the acquired downlink channel characteristic information to the base station; and causing the base station to perform fast Fourier transform (FFT) on the downlink channel information transmitted from the terminals to indirectly acquire full channel status information (CSI).

摘要翻译： 公开了一种用于使用正交频分复用（OFDM）脉冲信号估计每个发射天线的信道的无线通信系统中的信道估计和反馈的方法。 一种用于在无线通信系统中进行信道估计的方法，包括使得基站为每个发射天线产生具有特定波形的训练信号，并将生成的训练信号发射到终端; 使得终端使用从基站发送的训练信号来获取基站的每个发射天线的下行链路信道脉冲响应; 使得所述终端使用所获取的信道脉冲响应来获取所述基站的每个发送天线的下行链路信道特性; 使所述终端将所获取的下行链路信道特性信息反馈给所述基站; 并且使得基站对从终端发送的下行链路信道信息执行快速傅里叶变换（FFT）以间接获取全信道状态信息（CSI）。