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21. 发明申请

US20050204273A1 Apparatus and method for encoding and decoding a space-time low density parity check code with full diversity gain 有权
标题翻译：用于对具有全分集增益的时空低密度奇偶校验码进行编码和解码的装置和方法
公开(公告)号：US20050204273A1
公开(公告)日：2005-09-15
申请号：US11052673
申请日：2005-02-07
申请人： Hong-Sil Jeong , Seok-Hyun Yoon , Jae-Yoel Kim , Chan-Byoung Chae
发明人： Hong-Sil Jeong , Seok-Hyun Yoon , Jae-Yoel Kim , Chan-Byoung Chae
IPC分类号： G06F11/00 , H03M13/00
CPC分类号： H04L1/0057 , H03M13/1102 , H04L1/0625 , H04L1/0631
摘要： In a mobile communication system including a transmitter and a receiver, an LDPC code is generated by encoding received information data such that a fifth partial matrix obtained by combining a second partial matrix having even-numbered columns of a first partial matrix corresponding to the information data with a fourth partial matrix having odd-numbered columns of a third partial matrix corresponding to a parity, and an eighth partial matrix obtained by combining a sixth partial matrix having odd-numbered columns of the first partial matrix with a seventh partial matrix having even-numbered columns of the third partial matrix correspond to a ninth partial matrix obtained by exclusive-ORing the first partial matrix and the third partial matrix and a parity check matrix having a predetermined rank in a binary field. A space-time LDPC code is generated by spatial-mapping the LDPC code according to a predetermined spatial mapping scheme.
摘要翻译：在包括发射机和接收机的移动通信系统中，通过编码所接收的信息数据来生成LDPC码，使得通过组合具有与信息数据相对应的第一部分矩阵的具有偶数列的第二部分矩阵而获得的第五部分矩阵第四部分矩阵具有对应于奇偶校验的第三部分矩阵的奇数列，以及通过将具有第一部分矩阵的奇数列的第六部分矩阵与具有偶数列的第七部分矩阵组合而获得的第八部分矩阵，第三部分矩阵的编号列对应于通过对二进制字段中的第一部分矩阵和第三部分矩阵进行异或运算而获得的第九部分矩阵和具有预定等级的奇偶校验矩阵。通过根据预定的空间映射方案对LDPC码进行空间映射来生成时空LDPC码。

22. 发明授权

US07389464B2 Apparatus and method for encoding and decoding a space-time low density parity check code with full diversity gain 有权
标题翻译：用于对具有全分集增益的时空低密度奇偶校验码进行编码和解码的装置和方法
公开(公告)号：US07389464B2
公开(公告)日：2008-06-17
申请号：US11052673
申请日：2005-02-07
申请人： Hong-Sil Jeong , Seok-Hyun Yoon , Jae-Yoel Kim , Chan-Byoung Chae
发明人： Hong-Sil Jeong , Seok-Hyun Yoon , Jae-Yoel Kim , Chan-Byoung Chae
IPC分类号： H03M13/25 , H03M13/29 , H04B7/06 , H04B7/07
CPC分类号： H04L1/0057 , H03M13/1102 , H04L1/0625 , H04L1/0631
摘要： In a mobile communication system including a transmitter and a receiver, an LDPC code is generated by encoding received information data such that a fifth partial matrix obtained by combining a second partial matrix having even-numbered columns of a first partial matrix corresponding to the information data with a fourth partial matrix having odd-numbered columns of a third partial matrix corresponding to a parity, and an eighth partial matrix obtained by combining a sixth partial matrix having odd-numbered columns of the first partial matrix with a seventh partial matrix having even-numbered columns of the third partial matrix correspond to a ninth partial matrix obtained by exclusive-ORing the first partial matrix and the third partial matrix and a parity check matrix having a predetermined rank in a binary field. A space-time LDPC code is generated by spatial-mapping the LDPC code according to a predetermined spatial mapping scheme.
摘要翻译：在包括发射机和接收机的移动通信系统中，通过编码所接收的信息数据来生成LDPC码，使得通过组合具有与信息数据相对应的第一部分矩阵的具有偶数列的第二部分矩阵而获得的第五部分矩阵第四部分矩阵具有对应于奇偶校验的第三部分矩阵的奇数列，以及通过将具有第一部分矩阵的奇数列的第六部分矩阵与具有偶数列的第七部分矩阵组合而获得的第八部分矩阵，第三部分矩阵的编号列对应于通过对二进制字段中的第一部分矩阵和第三部分矩阵进行异或运算而获得的第九部分矩阵和具有预定等级的奇偶校验矩阵。通过根据预定的空间映射方案对LDPC码进行空间映射来生成时空LDPC码。

23. 发明授权

US07289588B2 Apparatus and method for generating a preamble sequence in an OFDM communication system 有权
标题翻译：用于在OFDM通信系统中生成前置码序列的装置和方法
公开(公告)号：US07289588B2
公开(公告)日：2007-10-30
申请号：US10726096
申请日：2003-12-02
申请人： Chang-Ho Suh , Chan-Byoung Chae , Ho-Kyu Choi , Jung-Min Ro , Pan-Yuh Joo
发明人： Chang-Ho Suh , Chan-Byoung Chae , Ho-Kyu Choi , Jung-Min Ro , Pan-Yuh Joo
IPC分类号： H04L7/00
CPC分类号： H04L27/2613 , H04L27/2607 , H04L27/2614 , H04L27/2656 , H04L27/2657 , H04L2027/0095
摘要： A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length -M×N preamble sequence, where M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.
摘要翻译：一种用于在频域中具有A个子载波的正交频分复用（OFDM）通信系统中产生前同步码序列的方法。该方法包括通过使用长度-GGayay互补序列和长度M Gayay互补序列来生成MxN小于A的长度-MxN前导码序列; 并且在一对一映射的基础上，将构成前同步码序列的元素分配给A个子载波中的M×N个子载波，将空数据分配给来自A个子载波的除了M×N个子载波之外的剩余子载波，然后将分配结果IFFT变换为时间域数据。

24. 发明申请

US20050201307A1 Apparatus and method for transmitting data by selected eigenvector in closed loop mimo mobile communication system 有权
标题翻译：用于通过选择的特征向量在闭环模拟移动通信系统中发送数据的装置和方法
公开(公告)号：US20050201307A1
公开(公告)日：2005-09-15
申请号：US11005398
申请日：2004-12-06
申请人： Chan-Byoung Chae , Hong-Sil Jeong , Katz Daniel , Seok Yoon , Dong-Seek Park , Chang-Ho Suh , Jae-Yoel Kim , Young-Kwon Cho
发明人： Chan-Byoung Chae , Hong-Sil Jeong , Katz Daniel , Seok Yoon , Dong-Seek Park , Chang-Ho Suh , Jae-Yoel Kim , Young-Kwon Cho
IPC分类号： H04J99/00 , H04B7/04 , H04L1/06 , H04J11/00
CPC分类号： H04B7/0417 , H04B7/0634 , H04L1/06
摘要： Disclosed is a method for transmitting/receiving data by use of feedback information in a closed loop multi input multi output (MIMO) mobile communication system. The method includes the steps of feeding back transmission eigenvector selection information determined through a singular value decomposition (SVD) of a channel matrix and transmitting the transmission eigenvector selection information to a transmitter; and receiving the feedback transmission eigenvector selection information, selecting transmission data according to the received transmission eigenvector selection information, mapping the selected transmission data to at least one transmission antenna, and transmitting the transmission data to a receiver.
摘要翻译：公开了一种在闭环多输入多输出（MIMO）移动通信系统中通过使用反馈信息发送/接收数据的方法。该方法包括以下步骤：反馈通过信道矩阵的奇异值分解（SVD）确定的发送特征向量选择信息，并将发送特征向量选择信息发送给发送机; 以及接收所述反馈传输特征向量选择信息，根据接收到的传输特征向量选择信息选择传输数据，将所选择的传输数据映射到至少一个传输天线，以及将传输数据发送到接收机。

25. 发明申请

US20050013381A1 Apparatus and method for transmitting/receiving preamble sequence in orthogonal frequency division multiplexing communication system using plurality of transmission antennas 有权
标题翻译：在使用多个发送天线的正交频分复用通信系统中发送/接收前置码序列的装置和方法
公开(公告)号：US20050013381A1
公开(公告)日：2005-01-20
申请号：US10891613
申请日：2004-07-15
申请人： Chang-Ho Suh , Chan-Soo Hwang , Katz Daniel , Chan-Byoung Chae , Ho-Kyu Choi
发明人： Chang-Ho Suh , Chan-Soo Hwang , Katz Daniel , Chan-Byoung Chae , Ho-Kyu Choi
IPC分类号： H04J11/00 , H04B7/06 , H04K1/10 , H04L27/26
CPC分类号： H04J13/0014 , H04B7/068 , H04J11/003 , H04J13/16 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/262 , H04L27/2657
摘要： A method for generating a preamble sequence in an OFDM (Orthogonal Frequency Division Multiplexing) communication system that uses A sub-carriers in a frequency domain and uses N Tx (Transmission) antennas, includes the steps of: generating N sequences, each having a length of ‘B/N’, by dividing B sub-carriers from among the A sub-carriers by the ‘N’ indicative of the number of the Tx antennas; and mapping, for each of the N sequences, individual components of the sequence to the B/N sub-carriers from among the A sub-carriers on a one by one basis in order to assign the components of the sequence to the B/N sub-carriers, and assigning null data to remaining sub-carriers other than the B/N sub-carriers from among the A-sub-carriers, such that a preamble sequence of a corresponding Tx antenna is generated.
摘要翻译：一种在频域中使用A个子载波并使用N Tx（发送）天线的OFDM（正交频分复用）通信系统中生成前置码序列的方法，包括以下步骤：生成N个序列，每个序列具有长度通过将A个副载波中的B个子载波除以指示Tx天线数量的“N”，将“B / N”分配给“B / N” 并且对于N个序列中的每一个，将序列的各个分量逐一地映射到A个子载波中的B / N个子载波，以便将该序列的分量分配给B / N 并且将空值数据分配给来自A子载波的B / N个子载波以外的剩余子载波，从而生成对应的Tx天线的前导码序列。

26. 发明授权

US07366090B2 Apparatus and method for generating a preamble sequence in an OFDM communication system 有权
标题翻译：用于在OFDM通信系统中生成前置码序列的装置和方法
公开(公告)号：US07366090B2
公开(公告)日：2008-04-29
申请号：US10819502
申请日：2004-04-07
申请人： Chang-Ho Suh , Chan-Byoung Chae , Ho-Kyu Choi , Jung-Min Ro , Pan-Yuh Joo
发明人： Chang-Ho Suh , Chan-Byoung Chae , Ho-Kyu Choi , Jung-Min Ro , Pan-Yuh Joo
IPC分类号： H04J11/00
CPC分类号： H04L27/2613
摘要： A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length-2×M×N preamble sequence, where 2×M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to 2×M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the 2×M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.
摘要翻译：一种用于在频域中具有A个子载波的正交频分复用（OFDM）通信系统中产生前同步码序列的方法。该方法包括通过使用长度-GGayay互补序列和长度-MGolay互补序列来生成2xMxN小于A的长度为2xMxN的前导码序列; 并且在一对一映射的基础上，将构成前同步码序列的元素分配给A×A×N×N个子载波中的2×M×N个子载波，从空载子载波分配空余数据到除了2×M×N个子载波以外的剩余子载波，然后将分配结果IFFT变换为时间域数据。

27. 发明授权

US09048907B2 Methods for reducing interference in communication systems 有权
标题翻译：减少通信系统干扰的方法
公开(公告)号：US09048907B2
公开(公告)日：2015-06-02
申请号：US12659471
申请日：2010-03-10
申请人： Chan-Byoung Chae , Doru Calin , Kai Yang , Simon Yiu
发明人： Chan-Byoung Chae , Doru Calin , Kai Yang , Simon Yiu
IPC分类号： H04W4/00 , H04B7/06 , H04B7/04 , H04B7/08 , H04B7/02
CPC分类号： H04B7/0626 , H04B7/024 , H04B7/0404 , H04B7/0408 , H04B7/0452 , H04B7/0617 , H04B7/0695 , H04B7/086 , H04B17/345
摘要： Example embodiments are directed to methods of reducing interference in a communication system. A method includes receiving, by a transmitter, first and second quantized matrices from a mobile station. The first and second quantized matrices are based on an estimated channel matrix and an estimated interference matrix. The method further includes determining, by the transmitter, a transmission beamforming vector based on the first and second quantized values.
摘要翻译：示例性实施例涉及减少通信系统中的干扰的方法。一种方法包括由发射机从移动台接收第一和第二量化矩阵。第一和第二量化矩阵基于估计的信道矩阵和估计的干扰矩阵。该方法还包括由发射机基于第一和第二量化值确定发射波束形成向量。

28. 发明授权

US08190209B2 Apparatus and method for beamforming in a multiantenna multiuser communication system 有权
标题翻译：多天线多用户通信系统中波束成形的装置和方法
公开(公告)号：US08190209B2
公开(公告)日：2012-05-29
申请号：US12383143
申请日：2009-03-20
申请人： Eun-Seok Ko , Jong-Hyung Kwun , David Mazzarese , Chan-Byoung Chae , Robert W. Heath, Jr.
发明人： Eun-Seok Ko , Jong-Hyung Kwun , David Mazzarese , Chan-Byoung Chae , Robert W. Heath, Jr.
IPC分类号： H04B1/38
CPC分类号： H04B7/0639 , H04B7/043 , H04B7/0452 , H04B7/0619
摘要： A method for beamforming by a transmission device in a multiantenna multiuser communication system. The method includes grouping codebook indexes included in a codebook into codebook index combinations, and calculating a sum of transmission rate for each of the codebook index combinations; selecting a codebook index combination with a maximum sum of transmission rate as an optimal codebook index combination; and transmitting a codebook index corresponding to a particular reception device among codebook indexes included in the optimal codebook index combination, to the particular reception device.
摘要翻译：一种用于多天线多用户通信系统中的传输装置的波束成形的方法。该方法包括将包括在码本中的码本索引分组为码本索引组合，并计算每个码本索引组合的传输速率之和; 选择具有最大传输速率和的码本索引组合作为最佳码本索引组合; 以及将包含在最佳码本索引组合中的码本索引中的与特定接收装置对应的码本索引发送到特定接收装置。

29. 发明申请

US20110223867A1 Methods for reducing interference in communication systems 有权
标题翻译：减少通信系统干扰的方法
公开(公告)号：US20110223867A1
公开(公告)日：2011-09-15
申请号：US12659471
申请日：2010-03-10
申请人： Chan-Byoung Chae , Doru Calin , Kai Yang , Simon Yiu
发明人： Chan-Byoung Chae , Doru Calin , Kai Yang , Simon Yiu
IPC分类号： H04B15/00
CPC分类号： H04B7/0626 , H04B7/024 , H04B7/0404 , H04B7/0408 , H04B7/0452 , H04B7/0617 , H04B7/0695 , H04B7/086 , H04B17/345
摘要： Example embodiments are directed to methods of reducing interference in a communication system. A method includes receiving, by a transmitter, first and second quantized matrices from a mobile station. The first and second quantized matrices are based on an estimated channel matrix and an estimated interference matrix. The method further includes determining, by the transmitter, a transmission beamforming vector based on the first and second quantized values.
摘要翻译：示例性实施例涉及减少通信系统中的干扰的方法。一种方法包括由发射机从移动台接收第一和第二量化矩阵。第一和第二量化矩阵基于估计的信道矩阵和估计的干扰矩阵。该方法还包括由发射机基于第一和第二量化值确定发射波束形成向量。

30. 发明授权

US07970073B2 Apparatus and method for transmitting/receiving data in multi-user multi-antenna communication system 有权
标题翻译：在多用户多天线通信系统中发送/接收数据的装置和方法
公开(公告)号：US07970073B2
公开(公告)日：2011-06-28
申请号：US11582172
申请日：2006-10-17
申请人： Chan-Byoung Chae , David Mazzarese , Sung-Ryul Yun
发明人： Chan-Byoung Chae , David Mazzarese , Sung-Ryul Yun
IPC分类号： H04B7/02
CPC分类号： H04B7/0697 , H04B7/0665 , H04B7/086
摘要： Provided is an apparatus and method for transmitting/receiving data in a multi-user multi-antenna communication system. A data transmitting apparatus and method computes a RX filter or a TX filter for each user receiver in an improved scheme, selects a codebook correlating with the computed TX filter or the computed RX filter, and transmits an index of the selected TX filter codebook or an index of the selected RX filter codebook to a receiver. A data receiving apparatus and method receives the codebook index and detects a corresponding RX filter from the codebook by using the received codebook index.
摘要翻译：提供一种用于在多用户多天线通信系统中发送/接收数据的装置和方法。数据发送装置和方法以改进方案计算每个用户接收机的RX滤波器或TX滤波器，选择与所计算的TX滤波器或所计算的RX滤波器相关的码本，并且发送所选择的TX滤波码本的索引或所选RX滤波器码本的索引到接收机。数据接收装置和方法通过使用接收到的码本索引从码本接收码本索引并检测相应的RX滤波器。

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