公开(公告)号：US07778147B2

公开(公告)日：2010-08-17

申请号：US11221223

申请日：2005-09-07

申请人： Antonio Forenza ,  Robert W. Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

发明人： Antonio Forenza ,  Robert W. Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

IPC分类号： H04J9/00

CPC分类号： H04B7/0689 ,  H04J9/00 ,  H04L1/0001

摘要： A multiple-input multiple-output (MIMO) wireless communication system. A transmitter that includes a plurality of transmit antennas selects one of a spatial multiplexing scheme and a spatial diversity scheme, processes a signal in the selected transmission scheme, and transmits the signal through the plurality of transmit antennas. A receiver that includes a plurality of receive antennas processes a signal in a reception scheme mapped to a transmission scheme of the transmitter. The transmission schemes include a transmission scheme for maximizing diversity gain and a transmission scheme for maximizing spectral efficiency. The MIMO communication system using an adaptive transmission mode switching technique performs switching between MIMO transmission modes using spatial selectivity of a channel, thereby obtaining maximum gain in a signal to noise ratio (SNR) and spectral efficiency according to channel state.

摘要翻译： 多输入多输出（MIMO）无线通信系统。 包括多个发射天线的发射机选择空间复用方案和空间分集方案之一，处理所选传输方案中的信号，并通过多个发射天线发射信号。 包括多个接收天线的接收机处理映射到发射机的传输方案的接收方案中的信号。 传输方案包括用于最大化分集增益的传输方案和用于使频谱效率最大化的传输方案。 使用自适应传输模式切换技术的MIMO通信系统使用信道的空间选择性进行MIMO传输模式之间的切换，从而根据信道状态获得信噪比（SNR）和频谱效率的最大增益。

公开(公告)号：US20060083195A1

公开(公告)日：2006-04-20

申请号：US11221223

申请日：2005-09-07

申请人： Antonio Forenza ,  Robert Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

发明人： Antonio Forenza ,  Robert Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

IPC分类号： H04J9/00

CPC分类号： H04B7/0689 ,  H04J9/00 ,  H04L1/0001

摘要： A multiple-input multiple-output (MIMO) wireless communication system. A transmitter that includes a plurality of transmit antennas selects one of a spatial multiplexing scheme and a spatial diversity scheme, processes a signal in the selected transmission scheme, and transmits the signal through the plurality of transmit antennas. A receiver that includes a plurality of receive antennas processes a signal in a reception scheme mapped to a transmission scheme of the transmitter. The transmission schemes include a transmission scheme for maximizing diversity gain and a transmission scheme for maximizing spectral efficiency. The MIMO communication system using an adaptive transmission mode switching technique performs switching between MIMO transmission modes using spatial selectivity of a channel, thereby obtaining maximum gain in a signal to noise ratio (SNR) and spectral efficiency according to channel state.

摘要翻译： 多输入多输出（MIMO）无线通信系统。 包括多个发射天线的发射机选择空间复用方案和空间分集方案之一，处理所选传输方案中的信号，并通过多个发射天线发射信号。 包括多个接收天线的接收机处理映射到发射机的传输方案的接收方案中的信号。 传输方案包括用于最大化分集增益的传输方案和用于使频谱效率最大化的传输方案。 使用自适应传输模式切换技术的MIMO通信系统使用信道的空间选择性进行MIMO传输模式之间的切换，从而根据信道状态获得信噪比（SNR）和频谱效率的最大增益。

公开(公告)号：US20060039494A1

公开(公告)日：2006-02-23

申请号：US11180264

申请日：2005-07-13

申请人： Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

发明人： Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

IPC分类号： H04L1/02

CPC分类号： H04B7/0617 ,  H04B7/061 ,  H04B7/0691 ,  H04L1/0003 ,  H04L1/0009 ,  H04W52/262

摘要： An apparatus and method for performing beamforming for transmitting a plurality of bit streams output through Adaptive Modulation and Coding (AMC) via a plurality of transmission antennas in a base station using a multi-antenna scheme. The apparatus and method include classifying the plurality of transmission antennas into a plurality of transmission antenna groups; selecting one of the transmission antenna groups depending on a group selection signal being fed back from a mobile station; and outputting each of the bit streams to its associated transmission antenna among the transmission antennas constituting the selected transmission antenna group.

摘要翻译： 一种用于执行波束成形的装置和方法，用于通过使用多天线方案的基站中的多个发送天线发送通过自适应调制和编码（AMC）输出的多个比特流。 该装置和方法包括将多个发射天线分类成多个发射天线组; 根据从移动台反馈的组选择信号选择发送天线组中的一个; 并且在构成所选择的发送天线组的发送天线之间将每个比特流输出到其相关的发送天线。

公开(公告)号：US07680198B2

公开(公告)日：2010-03-16

申请号：US11089220

申请日：2005-03-24

申请人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

发明人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

IPC分类号： H04K1/10 ,  H04B7/02 ,  H04L27/00 ,  H03D1/06 ,  H04L7/00

CPC分类号： H04L27/2608 ,  H04L27/0008

摘要： A bit/power loading method in an adaptive modulation-based multicarrier communication system computes ratios of modulation mode values to transmission power values sub-channel-by-sub-channel, selects a combination of sub-channels in which a sum of the ratios is maximized for a total number of bits to be simultaneously transmitted, and transmits signals in modulation modes corresponding to ratios of modulation mode values to transmission power values associated with the selected sub-channels. Because the bit/power loading method selects a combination of sub-channel modulation modes with the minimum total transmission power for a given number of bits on the basis of transmission power in each sub-channel modulation mode, the bits can be transmitted at the minimum transmission power in a given environment.

摘要翻译： 基于自适应调制的多载波通信系统中的比特/功率加载方法计算调制模式值与发射功率值与子信道子信道的比率，选择其中比率之和为的子信道的组合 对于要同时发送的总比特数最大化，并且将与调制模式值的比率相对应的调制模式的信号发送到与所选择的子信道相关联的发送功率值。 因为比特/功率加载方法基于每个子信道调制模式中的发送功率来选择给​​定比特数的最小总发送功率的子信道调制模式的组合，所以可以最少地发送比特 传输功率在给定的环境中。

公开(公告)号：US20060056527A1

公开(公告)日：2006-03-16

申请号：US11089220

申请日：2005-03-24

申请人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

发明人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

IPC分类号： H04K1/10 ,  H04L1/02

CPC分类号： H04L27/2608 ,  H04L27/0008

摘要： A bit/power loading method in an adaptive modulation-based multicarrier communication system computes ratios of modulation mode values to transmission power values sub-channel-by-sub-channel, selects a combination of sub-channels in which a sum of the ratios is maximized for a total number of bits to be simultaneously transmitted, and transmits signals in modulation modes corresponding to ratios of modulation mode values to transmission power values associated with the selected sub-channels. Because the bit/power loading method selects a combination of sub-channel modulation modes with the minimum total transmission power for a given number of bits on the basis of transmission power in each sub-channel modulation mode, the bits can be transmitted at the minimum transmission power in a given environment.

摘要翻译： 基于自适应调制的多载波通信系统中的比特/功率加载方法计算调制模式值与发射功率值与子信道子信道的比率，选择其中比率之和为的子信道的组合 对于要同时发送的总比特数最大化，并且将与调制模式值的比率相对应的调制模式的信号发送到与所选择的子信道相关联的发送功率值。 因为比特/功率加载方法基于每个子信道调制模式中的发送功率来选择给​​定比特数的最小总发送功率的子信道调制模式的组合，所以可以最少地发送比特 传输功率在给定的环境中。

公开(公告)号：US07675988B2

公开(公告)日：2010-03-09

申请号：US11180264

申请日：2005-07-13

申请人： Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

发明人： Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

IPC分类号： H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/061 ,  H04B7/0691 ,  H04L1/0003 ,  H04L1/0009 ,  H04W52/262

摘要： An apparatus and method for performing beamforming or transmitting a plurality of bit streams output through Adaptive Modulation and Coding (AMC) via a plurality of transmission antennas in a base station using a multi-antenna scheme. The apparatus and method include classifying the plurality of transmission antennas into a plurality of transmission antenna groups; selecting one of the transmission antenna groups depending on a group selection signal being fed back from a mobile station; and outputting each of the bit streams to its associated transmission antenna among the transmission antennas constituting the selected transmission antenna group.

摘要翻译： 一种用于通过使用多天线方案的基站中的多个发送天线执行波束成形或发送通过自适应调制和编码（AMC）输出的多个比特流的装置和方法。 该装置和方法包括将多个发射天线分类成多个发射天线组; 根据从移动台反馈的组选择信号选择发送天线组中的一个; 并且在构成所选择的发送天线组的发送天线之间将每个比特流输出到其相关的发送天线。

公开(公告)号：US20060104382A1

公开(公告)日：2006-05-18

申请号：US11260852

申请日：2005-10-27

申请人： Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Ashish Pandharipande

发明人： Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Ashish Pandharipande

IPC分类号： H04L1/02

CPC分类号： H04L1/0643 ,  H04B7/043 ,  H04L1/0625

摘要： Disclosed is a method and an apparatus for transmitting/receiving signals in an multiple input multiple output (MIMO) wireless communication system. The method and apparatus including beam forming of a reference signal while predetermined codes are mapped on a one-to-one basis to each of a plurality of beams available for the transmitter and thereafter transmitting the beam-formed reference signal to a receiver. Also, if information representing an optimum beam, which maximizes reception performance, is received from the receiver, beam forming of data signals is performed by means of a beam corresponding to the information on the optimum beam and the beam-formed data signals are transmitted to the receiver. Therefore, it is possible to apply a beam forming scheme having minimum operation complexity and maximizing reception performance.

摘要翻译： 公开了一种在多输入多输出（MIMO）无线通信系统中发送/接收信号的方法和装置。 该方法和装置包括参考信号的波束形成，同时将预定的代码以一对一的方式映射到可用于发射机的多个波束中的每一个，然后将波束形成的参考信号发送到接收机。 此外，如果从接收机接收到表示最大化接收性能的最佳波束的信息，则通过与最佳波束上的信息对应的波束执行数据信号的波束形成，并将波束形成的数据信号发送到 收件人。 因此，可以应用具有最小操作复杂度并且最大化接收性能的波束形成方案。

公开(公告)号：US07711330B2

公开(公告)日：2010-05-04

申请号：US11260852

申请日：2005-10-27

申请人： Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Ashish Pandharipande

发明人： Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Ashish Pandharipande

IPC分类号： H03C7/02

CPC分类号： H04L1/0643 ,  H04B7/043 ,  H04L1/0625

摘要： Disclosed is a method and an apparatus for transmitting/receiving signals in an multiple input multiple output (MIMO) wireless communication system. The method and apparatus including beam forming of a reference signal while predetermined codes are mapped on a one-to-one basis to each of a plurality of beams available for the transmitter and thereafter transmitting the beam-formed reference signal to a receiver. Also, if information representing an optimum beam, which maximizes reception performance, is received from the receiver, beam forming of data signals is performed by means of a beam corresponding to the information on the optimum beam and the beam-formed data signals are transmitted to the receiver. Therefore, it is possible to apply a beam forming scheme having minimum operation complexity and maximizing reception performance.

摘要翻译： 公开了一种在多输入多输出（MIMO）无线通信系统中发送/接收信号的方法和装置。 该方法和装置包括参考信号的波束形成，同时将预定的代码以一对一的方式映射到可用于发射机的多个波束中的每一个，然后将波束形成的参考信号发送到接收机。 此外，如果从接收器接收到表示最大化接收性能的最佳波束的信息，则通过与最佳波束上的信息对应的波束执行数据信号的波束形成，并将波束形成的数据信号发送到 收件人。 因此，可以应用具有最小操作复杂度并且最大化接收性能的波束形成方案。

公开(公告)号：US20060120478A1

公开(公告)日：2006-06-08

申请号：US11274662

申请日：2005-11-15

申请人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

发明人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

IPC分类号： H04L1/02

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0634

摘要： A multiple-input multiple-output (MIMO) communication system is provided for communication between a transmission apparatus having a plurality of transmission antennas and a reception apparatus having a plurality of reception antennas. The reception apparatus performs singular value decomposition (SVD) on channel information for a channel established to the transmission apparatus, and feeds back the SVD-decomposed channel information to the transmission apparatus. The transmission apparatus receives the SVD-decomposed channel information from the reception apparatus, performs QR decomposition on the received SVD-decomposed channel information, and sets multiple transmission antennas to be allocated to the channel, thereby performing beamforming.

摘要翻译： 提供了一种多输入多输出（MIMO）通信系统，用于具有多个发送天线的发送装置与具有多个接收天线的接收装置之间的通信。 接收装置对发送装置建立的信道的信道信息进行奇异值分解（SVD），并将SVD分解信道信息反馈给发送装置。 发送装置从接收装置接收SVD分解信道信息，对所接收的SVD分解信道信息进行QR分解，并设定要分配给信道的多个发送天线，从而进行波束形成。

公开(公告)号：US07746947B2

公开(公告)日：2010-06-29

申请号：US11274662

申请日：2005-11-15

申请人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

发明人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

IPC分类号： H04B7/04

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0634

摘要： A multiple-input multiple-output (MIMO) communication system is provided for communication between a transmission apparatus having a plurality of transmission antennas and a reception apparatus having a plurality of reception antennas. The reception apparatus performs singular value decomposition (SVD) on channel information for a channel established to the transmission apparatus, and feeds back the SVD-decomposed channel information to the transmission apparatus. The transmission apparatus receives the SVD-decomposed channel information from the reception apparatus, performs QR decomposition on the received SVD-decomposed channel information, and sets multiple transmission antennas to be allocated to the channel, thereby performing beamforming.

摘要翻译： 提供了一种多输入多输出（MIMO）通信系统，用于具有多个发送天线的发送装置与具有多个接收天线的接收装置之间的通信。 接收装置对发送装置建立的信道的信道信息进行奇异值分解（SVD），并将SVD分解信道信息反馈给发送装置。 发送装置从接收装置接收SVD分解信道信息，对所接收的SVD分解信道信息进行QR分解，并设定要分配给信道的多个发送天线，从而进行波束形成。