公开(公告)号：US20080318520A1

公开(公告)日：2008-12-25

申请号：US12156241

申请日：2008-05-30

申请人： Jong-Hyung Kwun ,  Robert Heath, JR. ,  Taiwen Tang ,  Sung-Hyun Cho ,  Chan-Byoung Chae

发明人： Jong-Hyung Kwun ,  Robert Heath, JR. ,  Taiwen Tang ,  Sung-Hyun Cho ,  Chan-Byoung Chae

IPC分类号： H04B3/36

CPC分类号： H04B7/0639 ,  H04B7/0426 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0632

摘要： A multiple antenna system for using a relay station with multiple antennas is provided. The system includes a base station for determining encoded data processing procedure based on first and second channel state information, determining a relaying procedure of the relay station, and sending the relaying procedure to the relay station based on the first and second channel state information; wherein the encoded data is terminating to a mobile station; the relay station for receiving data and the relay procedure which the base station sent, converting and sending the data according to the relaying procedure, and sending the first channel state information to the base station as a measured state of channel which receives the data; and the mobile station for receiving the data which the relay station sent, and sending the second channel state information to the relay station as a measured state of channel which receives the data.

摘要翻译： 提供了一种用于使用具有多个天线的中继站的多天线系统。 该系统包括基站，用于基于第一和第二信道状态信息确定编码数据处理过程，确定中继站的中继过程，以及基于第一和第二信道状态信息向中继站发送中继过程; 其中所述编码数据正在终止于移动台; 用于接收数据的中继站和基站发送的中继过程，根据中继过程转换和发送数据，并将第一信道状态信息发送到基站作为接收数据的信道的测量状态; 以及用于接收中继站发送的数据的移动站，并且向接收站发送第二信道状态信息作为接收数据的信道的测量状态。

公开(公告)号：US07463693B2

公开(公告)日：2008-12-09

申请号：US11213380

申请日：2005-08-26

申请人： Chan-Byoung Chae ,  Won-Il Roh ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Jae-Hak Chung ,  Young-Soo Park ,  Kyun-Byoung Ko ,  Seung-Hoon Nam ,  Young-Ho Jung ,  Chan-Soo Hwang ,  Jeong-Tae Oh ,  Dong-Seek Park

发明人： Chan-Byoung Chae ,  Won-Il Roh ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Jae-Hak Chung ,  Young-Soo Park ,  Kyun-Byoung Ko ,  Seung-Hoon Nam ,  Young-Ho Jung ,  Chan-Soo Hwang ,  Jeong-Tae Oh ,  Dong-Seek Park

IPC分类号： H04B7/02 ,  H04L27/20

CPC分类号： H04L1/0643

摘要： An apparatus and method for full-diversity, full-rate space-time block coding in a transmitter using two Tx antennas are provided. An input symbol sequence is STBC-encoded in a predetermined method and transmitted through the two Tx antennas.

摘要翻译： 提供了一种用于使用两个Tx天线的发射机中的全分集，全速率时空块编码的装置和方法。 输入符号序列以预定方法进行STBC编码，并通过两个Tx天线发送。

公开(公告)号：US20080181285A1

公开(公告)日：2008-07-31

申请号：US12021488

申请日：2008-01-29

申请人： In-Soo HWANG ,  Jong-Hyung KWUN ,  Sei-Joon SHIM ,  Chan-Byoung CHAE ,  Robert Heath

发明人： In-Soo HWANG ,  Jong-Hyung KWUN ,  Sei-Joon SHIM ,  Chan-Byoung CHAE ,  Robert Heath

IPC分类号： H04B1/00

CPC分类号： H04B7/0452 ,  H04B7/0417 ,  H04B7/0439 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639

摘要： A precoder and a precoding method in a multiuser multi-antenna system are provided. The precoder includes a channel checker for determining a DownLink (DL) channel condition of terminals in a service coverage area, a pre-compensator for pre-compensating, for channel distortion, signals to be sent to the terminals when a nonlinear algorithm is selected based on the channel condition of the terminals, and an interference remover for canceling interference in a channel by multiplying the pre-compensated signals by inverse channels of the terminals, and for canceling interference between the terminals. Accordingly, the pre-equalization can be carried out without global channel state information, and an increase of the transmit power can be prevented in the permutation.

摘要翻译： 提供了一种多用户多天线系统中的预编码器和预编码方法。 预编码器包括用于确定服务覆盖区域中的终端的下行链路（DL）信道状态的信道检查器，用于预补偿的预补偿器，用于信道失真，当基于非线性算法被选择时要发送到终端的信号 在终端的信道条件下，以及干扰去除器，用于通过将预补偿信号乘以终端的反向信道来消除信道中的干扰，并且用于消除终端之间的干扰。 因此，可以在没有全局信道状态信息的情况下执行预均衡，并且可以在排列中防止发送功率的增加。

公开(公告)号：US20070019712A1

公开(公告)日：2007-01-25

申请号：US11482801

申请日：2006-07-10

申请人： Kathiravetpillai Sivanesan ,  Marcos Katz ,  Chan-Byoung Chae

发明人： Kathiravetpillai Sivanesan ,  Marcos Katz ,  Chan-Byoung Chae

IPC分类号： H04B1/00

CPC分类号： H04B1/71055 ,  H04B1/7093

摘要： An apparatus and method for a multiuser receiver in a CDMA communication system are provided. The apparatus includes a plurality of White Matched Filters (WMFs) for pulse shaping received user signals, considering Multiple Access Interference (MAI), and a filter for detecting output signals of the WMFs using a Minimum Mean Square Error (MMSE) scheme, and outputting bit estimation values of the respective users. A transfer function of the WMF is determined by: adding a power spectral density function of the MAI to a power spectral density of an Additive White Gaussian Noise (AWGN); and multiplying an inverse number of the added value by a transfer function (H*(w)) of a Conventional Matched Filter (CMF). Accordingly, the SNIR can be maximized and thus the BER performance may be improved, without additional information, by using the filter in which the power spectral density of the MAI is added to the AWGN and then multiplied by the CMF function.

摘要翻译： 提供了一种用于CDMA通信系统中的多用户接收机的装置和方法。 该装置包括多个白色匹配滤波器（WMF），用于考虑多址干扰（MAI）的接收用户信号的脉冲整形，以及用于使用最小均方误差（MMSE）方案检测WMF的输出信号的滤波器，并输出 各个用户的位估计值。 通过以下方式确定WMF的传递函数：将MAI的功率谱密度函数加到加性白高斯噪声（AWGN）的功率谱密度; 并将相加值的倒数乘以常规匹配滤波器（CMF）的传递函数（H *（w））。 因此，通过使用其中将MAI的功率谱密度添加到AWGN然后乘以CMF功能的滤波器，可以使SNIR最大化，从而可以提高BER性能，而无需附加信息。

公开(公告)号：US20060279460A1

公开(公告)日：2006-12-14

申请号：US11448790

申请日：2006-06-08

申请人： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Sung-Kwon Hong ,  Young-Kyun Kim ,  Dong-Seek Park

发明人： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Sung-Kwon Hong ,  Young-Kyun Kim ,  Dong-Seek Park

IPC分类号： H01Q3/00

CPC分类号： H04B7/086 ,  H01Q3/2605 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0639

摘要： A receiver and transmitter of a closed-loop MIMO antenna system using a codebook and a receiving and transmitting method thereof are provided. The receiver of the MIMO antenna system includes a window size decider and a beamforming weight selector. The window size decider stores a codebook with beamforming weights and selects the beamforming weights corresponding to a window size from the codebook, and the beamforming weight selector selects an optimal beamforming weight based on a current channel state among the beamforming weights outputted from the window size decider, and feeds back the selected optimal beamforming weight to a transmitter.

摘要翻译： 提供了使用码本及其接收和发送方法的闭环MIMO天线系统的接收机和发射机。 MIMO天线系统的接收机包括窗口大小决定器和波束成形权重选择器。 窗口尺寸判定器存储具有波束成形权重的码本，并且从码本中选择对应于窗口大小的波束成形权重，并且波束成形权重选择器基于从窗口大小决定器输出的波束形成权重中的当前信道状态来选择最优波束成形权重 并将所选择的最佳波束成形权重反馈给发射机。

公开(公告)号：US20060093060A1

公开(公告)日：2006-05-04

申请号：US11264186

申请日：2005-11-01

申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam ,  Won-Il Roh ,  Jeong-Tae Oh ,  Chan-Byoung Chae ,  Kyun-Byoung Ko

发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam ,  Won-Il Roh ,  Jeong-Tae Oh ,  Chan-Byoung Chae ,  Kyun-Byoung Ko

IPC分类号： H04L1/02

CPC分类号： H04L1/0643 ,  H04L1/0693

摘要： There is provided a Multi-Input Multi-Output (MIMO) communication system including a transmitter for combining at least four transmit antennas according to each of at least two sub-channels, and transmitting space-time-coded signals and at least one receiver for receiving the signals through at least two antennas, wherein the receiver includes an antenna coordination information generator for generating and feeding back optimal transmit antenna coordination information according to said each sub-channel by means of the received signals, and the transmitter includes an antenna coordination controller for controlling coordinations of the transmit antennas according to each sub-channel based on the transmit antenna coordination information fed back from the receiver.

摘要翻译： 提供了一种多输入多输出（MIMO）通信系统，其包括用于根据至少两个子信道中的每一个组合至少四个发射天线的发射机，并且发送空时编码信号和至少一个接收机，用于 通过至少两个天线接收信号，其中所述接收机包括天线协调信息发生器，用于根据所述每个子信道通过所接收的信号产生和反馈最佳发射天线协调信息，并且所述发射机包括天线协调控制器 用于基于从接收机反馈的发送天线协调信息来控制根据每个子信道的发射天线的协调。

公开(公告)号：US20060039499A1

公开(公告)日：2006-02-23

申请号：US11204598

申请日：2005-08-16

申请人： Chan-Byoung Chae ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Won-Il Roh ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

发明人： Chan-Byoung Chae ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Won-Il Roh ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L1/0625 ,  H04L1/0668 ,  H04L1/0675

摘要： A space-time block coding apparatus and method for transmitting an input symbol sequence through a plurality of Tx antennas using a channel information from the receiver in order to improve the performance of a space-time block coding (STFBC). A pre-coder pre-codes an input symbol sequence by multiplying the input symbol sequence by ejθ, θ being a phase rotation angle, the pre-coded symbol sequence being reconstructed to have real and imaginary parts. A grouping mapper forms a grouping pattern based on feedback channel information received from a receiver, and generates a grouping symbol sequence by multiplying the grouping pattern by the pre-coded symbol sequence. A mapper generates symbol vectors by recombining the real and imaginary parts of the grouping symbol sequence in an interleaving scheme. A plurality of Alamouti coders encodes the symbol vectors in an Alamouti scheme and transmits the encoded symbol vectors through corresponding transmit antennas.

摘要翻译： 一种时空块编码装置和方法，用于使用来自接收机的信道信息通过多个Tx天线发送输入符号序列，以提高空时块编码（STFBC）的性能。 预编码器通过将输入符号序列乘以e为相位旋转角来预编码输入符号序列，所述预编码符号序列被重构为具有实部和虚部。 分组映射器基于从接收器接收的反馈信道信息形成分组模式，并通过将分组模式乘以预编码符号序列来生成分组符号序列。 映射器通过在交织方案中重组分组符号序列的实部和虚部来生成符号向量。 多个Alamouti编码器以Alamouti方案对符号向量进行编码，并通过对应的发送天线发送编码的符号向量。

公开(公告)号：US20050020313A1

公开(公告)日：2005-01-27

申请号：US10899400

申请日：2004-07-26

申请人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Daniel ,  Pan-Yuh Joo

发明人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Daniel ,  Pan-Yuh Joo

IPC分类号： H04B7/02 ,  H04B1/707 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04J11/00 ,  H04J13/00 ,  H04J99/00 ,  H04W16/28 ,  H04W28/06 ,  H04W28/18 ,  H04B1/38 ,  H04M1/00

CPC分类号： H04B7/0634 ,  H04B7/0617 ,  H04B7/0854

摘要： A method for transmitting and receiving weight information for creating transmission/reception beams in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. The method includes a receiver receiving a predetermined signal, and differentially providing weights to a first scheme and a second scheme for minimizing an error between the received signal and a predetermined reference signal, thereby obtaining a minimum error value. The receiver generates a despread signal by despreading the received signal, produces a reception weight for creation of a reception beam by the receiver through calculation using the despread signal and the minimum error value, and produces a transmission weight for creation of a transmission beam by a counterpart transmitter through calculation using the reception weight and the minimum error value. The receiver generates predetermined feedback information including the transmission weight and a transmitter transmits the feedback information to a counterpart receiver.

摘要翻译： 一种用于在使用多输入多输出自适应天线阵列方案的移动通信系统中发送和接收用于创建发送/接收波束的加权信息的方法。 该方法包括接收预定信号的接收机，并且差分地提供第一方案的权重和用于最小化接收信号与预定参考信号之间的误差的第二方案，由此获得最小误差值。 接收机通过解扩接收的信号来产生解扩信号，通过使用去扩展信号和最小误差值的计算产生接收机通过接收机产生接收波束的接收权重，并产生用于通过 通过使用接收权重和最小误差值计算对方发射机。 接收机产生包括传输权重的预定反馈信息，并且发射机将反馈信息发送到对方接收机。

公开(公告)号：US08284863B2

公开(公告)日：2012-10-09

申请号：US12156001

申请日：2008-05-29

申请人： In-Soo Hwang ,  Jong-Hyung Kwun ,  David Mazzarese ,  Robert Heath, Jr. ,  Chan-Byoung Chae

发明人： In-Soo Hwang ,  Jong-Hyung Kwun ,  David Mazzarese ,  Robert Heath, Jr. ,  Chan-Byoung Chae

IPC分类号： H04L27/00 ,  H04B7/06

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0665

摘要： An apparatus and method are provided for beamforming in a MIMO wireless communication system. A base station includes a first calculator that repeatedly calculates downlink beamforming vectors of the user terminals to calculate the optimal beamforming vectors for the user terminals, a quantizer that quantizes the downlink beamforming vectors in order to transmit information of the downlink beamforming vectors, a control channel transmitter that feeds forward information of the quantized downlink beamforming vectors to the user terminals, a second calculator that calculates the final downlink beamforming vectors of the user terminals, and a beamforming transmitter that sums the beamformed TX signals of the user terminals and transmits the summed TX signals through a plurality of TX antennas.

摘要翻译： 提供了一种用于MIMO无线通信系统中的波束成形的装置和方法。 基站包括：第一计算器，其重复地计算用户终端的下行链路波束成形向量，以计算用户终端的最佳波束成形向量;量化器，用于量化下行链路波束形成向量，以便发送下行链路波束形成向量的信息;控制信道 发送器，其将量化的下行链路波束成形向量的信息馈送给用户终端;计算用户终端的最终下行链路波束成形向量的第二计算器;以及与用户终端的波束形成的TX信号相加的波束成形发射机，并发送求和的TX 信号通过多个TX天线。

公开(公告)号：US08204142B2

公开(公告)日：2012-06-19

申请号：US12021488

申请日：2008-01-29

申请人： In-Soo Hwang ,  Jong-Hyung Kwun ,  Sei-Joon Shim ,  Chan-Byoung Chae ,  Robert Heath, Jr.

发明人： In-Soo Hwang ,  Jong-Hyung Kwun ,  Sei-Joon Shim ,  Chan-Byoung Chae ,  Robert Heath, Jr.

IPC分类号： H04B7/02

CPC分类号： H04B7/0452 ,  H04B7/0417 ,  H04B7/0439 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639

摘要： A precoder and a precoding method in a multiuser multi-antenna system are provided. The precoder includes a channel checker for determining a DownLink (DL) channel condition of terminals in a service coverage area, a pre-compensator for pre-compensating, for channel distortion, signals to be sent to the terminals when a nonlinear algorithm is selected based on the channel condition of the terminals, and an interference remover for canceling interference in a channel by multiplying the pre-compensated signals by inverse channels of the terminals, and for canceling interference between the terminals. Accordingly, the pre-equalization can be carried out without global channel state information, and an increase of the transmit power can be prevented in the permutation.

摘要翻译： 提供了一种多用户多天线系统中的预编码器和预编码方法。 预编码器包括用于确定服务覆盖区域中的终端的下行链路（DL）信道状态的信道检查器，用于预补偿的预补偿器，用于信道失真，当基于非线性算法被选择时要发送到终端的信号 在终端的信道条件下，以及干扰去除器，用于通过将预补偿信号乘以终端的反向信道来消除信道中的干扰，并用于消除终端之间的干扰。 因此，可以在没有全局信道状态信息的情况下执行预均衡，并且可以在排列中防止发送功率的增加。