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1. 发明授权

US08130855B2 Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a MIMO-OFDM system 有权
标题翻译：用于在MIMO-OFDM系统中组合空间频率块编码，空间复用和波束成形的方法和装置
公开(公告)号：US08130855B2
公开(公告)日：2012-03-06
申请号：US11254358
申请日：2005-10-20
申请人： Jaeyoung Kwak , Chang-Soo Koo , Robert Lind Olesen , Aykut Bultan , Fatih Ozluturk
发明人： Jaeyoung Kwak , Chang-Soo Koo , Robert Lind Olesen , Aykut Bultan , Fatih Ozluturk
IPC分类号： H04L1/02 , H04B7/02
CPC分类号： H04L1/0606 , H04B7/0408 , H04B7/0413 , H04B7/0697 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/04 , H04L5/0007 , H04L25/0248 , H04L27/2601 , H04L27/2626 , H04L27/2647
摘要： A method and apparatus for combining space-frequency block coding (SFBC), spatial multiplexing (SM) and beamforming in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. The system includes a transmitter with a plurality of transmit antennas and a receiver with a plurality of receive antennas. The transmitter generates at least one data stream and a plurality of spatial streams. The number of generated spatial streams is based on the number of the transmit antennas and the number of the receive antennas. The transmitter determines a transmission scheme in accordance with at least one of SFBC, SM and beam forming. The transmitter transmits data in the data stream to the receiver based on the selected transmission scheme.
摘要翻译：一种用于在多输入多输出（MIMO）正交频分复用（OFDM）系统中组合空间频率块编码（SFBC），空间复用（SM）和波束形成的方法和装置。该系统包括具有多个发射天线的发射机和具有多个接收天线的接收机。发射机产生至少一个数据流和多个空间流。所生成的空间流的数量基于发射天线的数量和接收天线的数量。发射机根据SFBC，SM和波束形成中的至少一个确定传输方案。发射机根据所选择的传输方案向接收机发送数据流中的数据。

2. 发明申请

US20120027053A1 METHOD AND APPARATUS FOR REDUCING MULTI-USER PROCESSING IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：用于在无线通信系统中减少多用户处理的方法和装置
公开(公告)号：US20120027053A1
公开(公告)日：2012-02-02
申请号：US13270013
申请日：2011-10-10
申请人： Jung-Lin Pan , Jaeyoung Kwak , Donald M. Grieco
发明人： Jung-Lin Pan , Jaeyoung Kwak , Donald M. Grieco
IPC分类号： H04B1/707 , H04L27/06
CPC分类号： H04J13/0044 , H04B1/7105
摘要： A method and apparatus is disclosed for reducing multi-user processing at the receiver in wireless communication systems. Detected codes are grouped according to channel impulse response and a parent code is identified for each group of detected codes. A matrix A is constructed and joint detection is performed using the identified parent codes. Data symbols of the detected codes are obtained from the data symbols of the identified parent codes.
摘要翻译：公开了用于减少无线通信系统中接收机处的多用户处理的方法和装置。检测到的代码根据信道脉冲响应进行分组，并为每组检测到的代码识别父代码。构建矩阵A，并使用所识别的父代码执行联合检测。检测到的代码的数据符号从所识别的母代码的数据符号获得。

3. 发明授权

US07657278B2 Method and apparatus for deriving a combined transmit power control command during handover 失效
标题翻译：用于在切换期间导出组合的发射功率控制命令的方法和装置
公开(公告)号：US07657278B2
公开(公告)日：2010-02-02
申请号：US11234629
申请日：2005-09-23
申请人： Chang-Soo Koo , Donald M. Grieco , Jaeyoung Kwak
发明人： Chang-Soo Koo , Donald M. Grieco , Jaeyoung Kwak
IPC分类号： H04W52/24 , H04W52/40
CPC分类号： H04W52/40 , H04W52/146
摘要： A method and apparatus for deriving a combined transmit power control (TPC) command during handover are disclosed. During handover, a combined TPC command is generated from two or more TPC commands. The combined TPC command is set to −1 for decrease of the transmit power if a soft symbol of the TPC signal from any cell indicates decrease of the transmit power and the signal-to-interference ratio for the cell is greater than a reliability threshold. Otherwise, the combined TPC command is set to −1 if the function γ is not greater than the combining threshold, and set to +1 if the function γ is greater than the combining threshold, where the function γ represents a log-likelihood ratio of a probability density function of the combined TPC command.
摘要翻译：公开了一种用于在切换期间导出组合发射功率控制（TPC）命令的方法和装置。在切换期间，从两个或多个TPC命令生成组合的TPC命令。如果来自任何小区的TPC信号的软符号表示发射功率的降低，并且小区的信号干扰比大于可靠性阈值，则组合的TPC命令被设置为-1以降低发射功率。否则，如果函数gamma不大于组合阈值，则将组合的TPC命令设置为-1，如果函数gamma大于组合阈值，则将其设置为+1，其中函数gamma表示对数似然比组合TPC命令的概率密度函数。

4. 发明申请

US20090316307A1 METHOD AND APPARATUS TO IMPROVE CHANNEL QUALITY FOR USE IN WIRELESS COMMUNICATIONS SYSTEMS WITH MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) ANTENNAS 审中-公开
标题翻译：在多输入多输出（MIMO）天线的无线通信系统中提高通道质量的方法和装置
公开(公告)号：US20090316307A1
公开(公告)日：2009-12-24
申请号：US12541337
申请日：2009-08-14
申请人： Robert-Lind Olesen , Jaeyoung Kwak , Aykut Bultan
发明人： Robert-Lind Olesen , Jaeyoung Kwak , Aykut Bultan
IPC分类号： G11B5/55
CPC分类号： H04L1/0026 , H04B7/0617 , H04L5/0023 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0248 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Apparatus and method that employ a technique which improves SINR in a communication system utilizing MIMO antennas are described. Transmitter and receiver components use fixed transmit and receive beamforming matrices and variable transmit and receive beamforming vectors. A method of channel conditioning using an iterative closed loop process is also described.
摘要翻译：描述了利用利用MIMO天线的通信系统中改善SINR的技术的装置和方法。发射机和接收机组件使用固定的发射和接收波束形成矩阵以及可变的发射和接收波束形成向量。还描述了使用迭代闭环过程的信道调节方法。

5. 发明申请

US20080062860A1 EFFICIENT JOINT DETECTION 失效
标题翻译：有效的联合检测
公开(公告)号：US20080062860A1
公开(公告)日：2008-03-13
申请号：US11926534
申请日：2007-10-29
申请人： Jaeyoung Kwak , John Haim , Ariela Zeira , Jung-Lin Pan
发明人： Jaeyoung Kwak , John Haim , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04J11/00
CPC分类号： H04B1/71052 , H04B2201/70707
摘要： K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the; extended and approximated system and covariance matrices are determined by prime factor algorithm—fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals.
摘要翻译： K个数据信号或脉冲串以码分多址通信格式通过共享频谱发送。组合信号在共享频谱上被接收和采样，作为多个接收的矢量版本。组合信号包括K个发送的数据信号。产生多个系统矩阵和使用K个数据信号的代码和估计的脉冲响应的相关协方差矩阵。每个系统矩阵对应于接收到的矢量版本。系统和协方差矩阵被扩展和近似为块循环矩阵。每个的对角矩阵; 扩展和近似系统和协方差矩阵通过素数因子算法 - 快速傅里叶变换（PFA-FFT）来确定，而不分割矩阵。收到的矢量版本被扩展。采用对角矩阵和扩展接收向量版本的乘积。通过PFA-FFT对乘积的结果执行逆块离散傅里叶变换，以产生K个数据信号的估计数据。

6. 发明授权

US07266168B2 Groupwise successive interference cancellation for block transmission with reception diversity 有权
标题翻译：具有接收分集的块传输的分组连续干扰消除
公开(公告)号：US07266168B2
公开(公告)日：2007-09-04
申请号：US10622306
申请日：2003-07-18
申请人： Jaeyoung Kwak , Jung-Lin Pan , Ariela Zeira
发明人： Jaeyoung Kwak , Jung-Lin Pan , Ariela Zeira
IPC分类号： H04L1/02
CPC分类号： H04B1/71055 , H04B1/7093 , H04B1/71072 , H04B7/0854 , H04L1/06 , H04L25/0212 , H04L25/0226 , H04L25/03305 , H04L25/03318
摘要： A plurality of data signals are received over an antenna array having a plurality of antenna elements. The data signals are transmitted over a shared spectrum in a wireless communication system. A signal having each of the data signals is received over each antenna element. The plurality of data signals are grouped into a plurality of groups. The received signals of the antenna elements are matched filtered for a first group of the plurality of groups, producing a matched filtered result. Data is jointly detected of the first group using the matched filtered result. An interference correction signal is constructed using the detected data for each antenna element. The interference cancelled result is subtracted from the received signal of each antenna element, producing an interference cancelled result for each antenna element. Data is successively detected for remaining groups using the interference cancelled result for each antenna element.
摘要翻译：通过具有多个天线元件的天线阵列接收多个数据信号。数据信号通过无线通信系统中的共享频谱传输。在每个天线元件上接收具有每个数据信号的信号。多个数据信号被分组成多个组。将天线元件的接收信号与多个组中的第一组进行匹配滤波，产生匹配的滤波结果。使用匹配的过滤结果联合检测第一组的数据。使用每个天线元件的检测数据构建干扰校正信号。从每个天线元件的接收信号中减去干扰消除结果，产生每个天线元件的干扰消除结果。使用每个天线元件的干扰消除结果对剩余组连续检测数据。

7. 发明申请

US20060133530A1 Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a MIMO-OFDM system 有权
标题翻译：用于在MIMO-OFDM系统中组合空间频率块编码，空间复用和波束成形的方法和装置
公开(公告)号：US20060133530A1
公开(公告)日：2006-06-22
申请号：US11254358
申请日：2005-10-20
申请人： Jaeyoung Kwak , Chang-Soo Koo , Robert Olesen , Aykut Bultan , Fatih Ozluturk
发明人： Jaeyoung Kwak , Chang-Soo Koo , Robert Olesen , Aykut Bultan , Fatih Ozluturk
IPC分类号： H04L1/02
CPC分类号： H04L1/0606 , H04B7/0408 , H04B7/0413 , H04B7/0697 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/04 , H04L5/0007 , H04L25/0248 , H04L27/2601 , H04L27/2626 , H04L27/2647
摘要： A method and apparatus for combining space-frequency block coding (SFBC), spatial multiplexing (SM) and beamforming in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. The system includes a transmitter with a plurality of transmit antennas and a receiver with a plurality of receive antennas. The transmitter generates at least one data stream and a plurality of spatial streams. The number of generated spatial streams is based on the number of the transmit antennas and the number of the receive antennas. The transmitter determines a transmission scheme in accordance with at least one of SFBC, SM and beam forming. The transmitter transmits data in the data stream to the receiver based on the selected transmission scheme.
摘要翻译：一种用于在多输入多输出（MIMO）正交频分复用（OFDM）系统中组合空间频率块编码（SFBC），空间复用（SM）和波束形成的方法和装置。该系统包括具有多个发射天线的发射机和具有多个接收天线的接收机。发射机产生至少一个数据流和多个空间流。所生成的空间流的数量基于发射天线的数量和接收天线的数量。发射机根据SFBC，SM和波束形成中的至少一个确定传输方案。发射机根据所选择的传输方案向接收机发送数据流中的数据。

8. 发明授权

US08036181B2 Method and apparatus for reducing multi-user processing in wireless communication systems 有权
标题翻译：用于减少无线通信系统中的多用户处理的方法和装置
公开(公告)号：US08036181B2
公开(公告)日：2011-10-11
申请号：US12574176
申请日：2009-10-06
申请人： Jung-Lin Pan , Jaeyoung Kwak , Donald M. Grieco
发明人： Jung-Lin Pan , Jaeyoung Kwak , Donald M. Grieco
IPC分类号： H04B7/216
CPC分类号： H04J13/0044 , H04B1/7105
摘要： A method and apparatus is disclosed for reducing multi-user processing at the receiver in wireless communication systems. Detected codes are grouped according to channel impulse response and a parent code is identified for each group of detected codes. A matrix A is constructed and joint detection is performed using the identified parent codes. Data symbols of the detected codes are obtained from the data symbols of the identified parent codes.
摘要翻译：公开了用于减少无线通信系统中接收机处的多用户处理的方法和装置。检测到的代码根据信道脉冲响应进行分组，并为每组检测到的代码识别父代码。构建矩阵A，并使用所识别的父代码执行联合检测。检测到的代码的数据符号从所识别的母代码的数据符号获得。

9. 发明授权

US07583982B2 Method and apparatus to improve channel quality for use in wireless communications systems with multiple-input multiple-output (MIMO) antennas 失效
标题翻译：改善用于具有多输入多输出（MIMO）天线的无线通信系统中的信道质量的方法和装置
公开(公告)号：US07583982B2
公开(公告)日：2009-09-01
申请号：US11167736
申请日：2005-06-27
申请人： Robert Lind Olesen , Jaeyoung Kwak , Aykut Bultan
发明人： Robert Lind Olesen , Jaeyoung Kwak , Aykut Bultan
IPC分类号： H04M1/00
CPC分类号： H04L1/0026 , H04B7/0617 , H04L5/0023 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0248 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： A technique which improves SINR in a communication system utilizing MIMO antennas is described. Transmitter and receiver components use fixed transmit and receive beamforming matrices and variable transmit and receive beamforming vectors. A method of channel conditioning using an iterative closed loop process is also described.
摘要翻译：描述了一种在利用MIMO天线的通信系统中改善SINR的技术。发射机和接收机组件使用固定的发射和接收波束形成矩阵以及可变的发射和接收波束形成向量。还描述了使用迭代闭环过程的信道调节方法。

10. 发明申请

US20090129447A1 EFFICIENT JOINT DETECTION 失效
标题翻译：有效的联合检测
公开(公告)号：US20090129447A1
公开(公告)日：2009-05-21
申请号：US12358739
申请日：2009-01-23
申请人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
发明人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04B1/707
CPC分类号： H04B1/71052 , H04B2201/70707
摘要： K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the extended and approximated system and covariance matrices are determined by prime factor algorithm-fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals.
摘要翻译： K个数据信号或脉冲串以码分多址通信格式通过共享频谱发送。组合信号在共享频谱上被接收和采样，作为多个接收的矢量版本。组合信号包括K个发送的数据信号。产生多个系统矩阵和使用K个数据信号的代码和估计的脉冲响应的相关协方差矩阵。每个系统矩阵对应于接收到的矢量版本。系统和协方差矩阵被扩展和近似为块循环矩阵。每个扩展和近似的系统和协方差矩阵的对角矩阵由质数因子算法 - 快速傅里叶变换（PFA-FFT）确定，而不分割矩阵。收到的矢量版本被扩展。采用对角矩阵和扩展接收向量版本的乘积。通过PFA-FFT对乘积的结果执行逆块离散傅里叶变换，以产生K个数据信号的估计数据。

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