公开(公告)号：US08654879B2

公开(公告)日：2014-02-18

申请号：US13387308

申请日：2010-11-02

申请人： Xiqi Gao ,  Wenjin Wang ,  Ting Li ,  Meili Zhou ,  Bin Jiang ,  Wen Zhong ,  Long Qin

发明人： Xiqi Gao ,  Wenjin Wang ,  Ting Li ,  Meili Zhou ,  Bin Jiang ,  Wen Zhong ,  Long Qin

IPC分类号： H04B7/02

CPC分类号： H04L25/0204 ,  H04B7/0413 ,  H04L25/0232 ,  H04L27/2647

摘要： A multi-antenna channel estimation method based on polyphase decomposition includes: receiving frequency domain received signals transformed using discrete fourier transformation (DFT) in pilot symbols; performing phase correction on the frequency domain received signals; performing polyphase decomposition on the frequency domain received signals which are corrected using phase correction and acquiring polyphase signals; performing interpolation on the polyphase signals and acquiring the estimation values of the multi-antenna channel parameters with various linear combinations on each frequency; acquiring decorrelation array based on the pilot structure of the transmission antenna and decorrelating the estimation values of the multi-antenna channel parameters with various linear combination on each frequency using the decorrelation array and acquiring channel parameters of the pilot symbols on each frequency; acquiring channel parameters of data symbols based on the channel parameters of the pilot symbols. With the present invention, the inversion problem in multi-antenna channel estimation is avoided with lower complexity, and results of the multi-antenna channel estimation method become more accurate since the DFT and filtering are performed in the interpolation after polyphase decomposition.

摘要翻译： 基于多相分解的多天线信道估计方法包括：在导频符号中接收使用离散傅立叶变换（DFT）变换的频域接收信号; 对频域接收信号进行相位校正; 对使用相位校正和获取多相信号校正的频域接收信号执行多相分解; 对所述多相信号执行插值，并且在每个频率上以各种线性组合获取所述多天线信道参数的估计值; 基于发射天线的导频结构获取解相关阵列，并使用解相关阵列在每个频率上用各种线性组合去除多个天线信道参数的估计值，并获取每个频率上的导频符号的信道参数; 基于导频符号的信道参数获取数据符号的信道参数。 利用本发明，以更低的复杂度避免了多天线信道估计中的反转问题，并且由于在多相分解之后的内插中执行DFT和滤波，所以多天线信道估计方法的结果变得更加精确。

公开(公告)号：US08107546B2

公开(公告)日：2012-01-31

申请号：US12225908

申请日：2007-01-26

申请人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

发明人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

IPC分类号： H04K1/10

CPC分类号： H04L1/0055 ,  H04L1/005 ,  H04L1/06

摘要： A detection method of space domain maximum posteriori probability (MAP) in a wireless communication system is a kind of detection technique of space domain MAP in a multi-aerial wireless communication system, which makes the detection of iteration soft interference elimination for the interference signals in the other moments, and makes the MAP detection or the simplified MAP detection for the all signals in current time and space domain. It includes the steps of: taking a fading block as a unit; the received signals are matched and combined in time domain and space domain, and calculating an equivalent channel matrix; making the sequence detection, calculating estimation and variance of the signals before the ending of detecting internal iteration; when the internal iteration detection finishes, the result is outputted, or is outputted after hard decision.

摘要翻译： 无线通信系统中空间域最大后验概率（MAP）的检测方法是多空中无线通信系统中空间域MAP的一种检测技术，能够对干扰信号的迭代软干扰消除进行检测 在其他时刻，对当前时间和空间域中的所有信号进行MAP检测或简化MAP检测。 它包括以下步骤：以褪色块为单位; 接收信号在时域和空域进行匹配和组合，并计算等效信道矩阵; 在检测内部迭代结束之前进行序列检测，计算信号的估计和方差; 当内部迭代检测结束时，输出结果，或在硬判决后输出。

公开(公告)号：US20090161805A1

公开(公告)日：2009-06-25

申请号：US12225908

申请日：2007-01-26

申请人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

发明人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

IPC分类号： H04B1/10

CPC分类号： H04L1/0055 ,  H04L1/005 ,  H04L1/06

摘要： A detection method of space domain maximum posteriori probability (MAP) in a wireless communication system is a kind of detection technique of space domain MAP in a multi-aerial wireless communication system, which makes the detection of iteration soft interference elimination for the interference signals in the other moments, and makes the MAP detection or the simplified MAP detection for the all signals in current time and space domain. It includes the steps of: taking a fading block as a unit; the received signals are matched and combined in time domain and space domain, and calculating an equivalent channel matrix; making the sequence detection, calculating estimation and variance of the signals before the ending of detecting internal iteration; when the internal iteration detection finishes, the result is outputted, or is outputted after hard decision.

摘要翻译： 无线通信系统中空间域最大后验概率（MAP）的检测方法是多空中无线通信系统中空间域MAP的一种检测技术，能够对干扰信号的迭代软干扰消除进行检测 在其他时刻，对当前时间和空间域中的所有信号进行MAP检测或简化MAP检测。 它包括以下步骤：以褪色块为单位; 接收信号在时域和空域进行匹配和组合，并计算等效信道矩阵; 在检测内部迭代结束之前进行序列检测，计算信号的估计和方差; 当内部迭代检测结束时，输出结果，或在硬判决后输出。

公开(公告)号：US20120327757A1

公开(公告)日：2012-12-27

申请号：US13544640

申请日：2012-07-09

申请人： Wenjin WANG ,  Shaoqing Chen ,  Xiqi Gao ,  Long Qin ,  Dongming Wang

发明人： Wenjin WANG ,  Shaoqing Chen ,  Xiqi Gao ,  Long Qin ,  Dongming Wang

IPC分类号： H04B15/00 ,  H04J11/00 ,  H04L27/01

CPC分类号： H04B7/0413 ,  H04L25/03019

摘要： The present invention discloses a detection method, a receiver, and an apparatus in a multiple-input multiple-output single-carrier block transmission system. Through sorted QR decomposition (Sorted QR Decomposition, SQRD) decomposition based on a minimum mean squared error (Minimum Mean Squared Error, MMSE) criterion, an matrix inverse operation in minimum mean squared error equalization is avoided, and complexity is significantly reduced. In addition, through layer-by-layer soft interference cancellation detection after the SQRD decomposition and further iterative processing, better detection performance may be obtained. Especially, inter-stream interference suppression may be performed in first iteration. Compared with a conventional parallel iterative soft interference cancellation detection algorithm, with the same number of times of iteration, especially under the limit that a receiver can only support a small number of limes of iteration, the inter-stream interference suppression has more evident advantages, and an advantage in the aspect of cost performance is very obvious.

摘要翻译： 本发明公开了一种多输入多输出单载波块传输系统中的检测方法，接收机和装置。 通过基于最小均方误差（Minimum Mean Squared Error，MMSE）标准的QR码分解（QRD分解，SQRD）分解，避免了最小均方误差均衡中的矩阵逆运算，复杂度显着降低。 另外，通过SQRD分解和进一步迭代处理后的逐层软干扰消除检测，可以获得更好的检测性能。 特别地，可以在第一次迭代中执行流间干扰抑制。 与传统的并行迭代软干扰消除检测算法相比，具有相同的迭代次数，特别是在接收机只能支持少量迭代的限制下，流间干扰抑制具有更明显的优点， 而在性能方面的优势非常明显。

公开(公告)号：US20090310725A1

公开(公告)日：2009-12-17

申请号：US12225892

申请日：2007-01-24

申请人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

发明人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

IPC分类号： H04B1/10

CPC分类号： H04B7/0667 ,  H04B7/0854 ,  H04B7/0891 ,  H04B17/26

摘要： A space domain filter detecting method in a multi-antennas wireless communication system, processing differently with the interference from the time domain and the space domain, which proceeds the interference elimination in matched filter manner for the interference signals from all antennas in the other time, and proceeds the filtering in corresponding manner for the interference signals from the other antennas in present time, comprises the following steps: firstly, the received signals are matched-combined in time domain and space domain; secondly, with the combined signals as the observation value for detecting, the filtering is proceeded in space domain in corresponding manner; thirdly, the estimated value is subtracted from the filtered signals, and the result is taken as the detecting result to output, and then is sent to the determiner in non-error control coding system to get the symbol hard determination output or is sent to the determiner in error control coding system to get the symbol soft determination output that finally sent to the coder. The method promotes the transmission rate and the anti-interference ability and advances the spectrum efficiency.

摘要翻译： 一种多天线无线通信系统中的空域滤波器检测方法，与来自时域和空域的干扰进行不同的处理，对于来自所有天线的干扰信号，以匹配滤波方式进行干扰消除， 并在当前时间内对其他天线的干扰信号以相应的方式进行滤波，包括以下步骤：首先在时域和空域对匹配的接收信号进行匹配; 其次，以组合信号作为观测值进行检测，以相应的方式在空间域中进行滤波; 第三，从滤波信号中减去估计值，将其作为检测结果输出，然后发送到非错误控制编码系统中的确定器，以获得符号硬判定输出或发送到 确定器在错误控制编码系统中获得最终发送到编码器的符号软判定输出。 该方法提高了传输速率和抗干扰能力，提高了频谱效率。

公开(公告)号：US20120121048A1

公开(公告)日：2012-05-17

申请号：US13387308

申请日：2010-11-02

申请人： Xiqi Gao ,  Wenjin Wang ,  Ting Li ,  Meili Zhou ,  Bin Jiang ,  Wen Zhong ,  Long Qin

发明人： Xiqi Gao ,  Wenjin Wang ,  Ting Li ,  Meili Zhou ,  Bin Jiang ,  Wen Zhong ,  Long Qin

IPC分类号： H04L27/06

CPC分类号： H04L25/0204 ,  H04B7/0413 ,  H04L25/0232 ,  H04L27/2647

摘要： A multi-antenna channel estimation method based on polyphase decomposition includes: receiving frequency domain received signals transformed using discrete fourier transformation (DFT) in pilot symbols; performing phase correction on the frequency domain received signals; performing polyphase decomposition on the frequency domain received signals which are corrected using phase correction and acquiring polyphase signals; performing interpolation on the polyphase signals and acquiring the estimation values of the multi-antenna channel parameters with various linear combinations on each frequency; acquiring decorrelation array based on the pilot structure of the transmission antenna and decorrelating the estimation values of the multi-antenna channel parameters with various linear combination on each frequency using the decorrelation array and acquiring channel parameters of the pilot symbols on each frequency; acquiring channel parameters of data symbols based on the channel parameters of the pilot symbols. With the present invention, the inversion problem in multi-antenna channel estimation is avoided with lower complexity, and results of the multi-antenna channel estimation method become more accurate since the DFT and filtering are performed in the interpolation after polyphase decomposition.

摘要翻译： 基于多相分解的多天线信道估计方法包括：在导频符号中接收使用离散傅立叶变换（DFT）变换的频域接收信号; 对频域接收信号进行相位校正; 对使用相位校正和获取多相信号校正的频域接收信号执行多相分解; 对所述多相信号执行插值，并且在每个频率上以各种线性组合获取所述多天线信道参数的估计值; 基于发射天线的导频结构获取解相关阵列，并使用解相关阵列在每个频率上用各种线性组合去除多个天线信道参数的估计值，并获取每个频率上的导频符号的信道参数; 基于导频符号的信道参数获取数据符号的信道参数。 利用本发明，以更低的复杂度避免了多天线信道估计中的反转问题，并且由于在多相分解之后的内插中执行DFT和滤波，所以多天线信道估计方法的结果变得更加精确。

公开(公告)号：US08139669B2

公开(公告)日：2012-03-20

申请号：US12225892

申请日：2007-01-24

申请人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

发明人： Xiqi Gao ,  Xiaohu You ,  Wenjin Wang ,  Dong-Seung Kwon ,  Seung-Jun Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0667 ,  H04B7/0854 ,  H04B7/0891 ,  H04B17/26

摘要： A space domain filter detecting method in a multi-antennas wireless communication system, which processes time and space domain interference differently. The space domain filter detecting method comprises the following steps: firstly, the received signals are matched-combined in time domain and space domain; secondly, using the combined signals as an observation value, the space domain filtering is performed; thirdly, an estimated value is subtracted from the filtered signals, and the result is taken as a detection output, which is sent to a determiner in a non-error control coding system to get a hard determination output or is sent to a determiner in an error control coding system to get a soft determination output that is finally sent to a coder. The method promotes the transmission rate and the anti-interference ability and advances the spectrum efficiency.

摘要翻译： 在多天线无线通信系统中的空间域滤波器检测方法，其处理时域和空域干扰不同。 空域滤波器检测方法包括以下步骤：首先在时域和空域对接收信号进行匹配组合; 其次，使用组合信号作为观测值，进行空间域滤波; 第三，从经滤波的信号中减去估计值，将其作为检测输出，将其发送到无误差控制编码系统中的确定器以获得硬判定输出，或者将其发送到确定器 错误控制编码系统得到最终发送到编码器的软判定输出。 该方法提高了传输速率和抗干扰能力，提高了频谱效率。

公开(公告)号：US08947996B2

公开(公告)日：2015-02-03

申请号：US13574773

申请日：2010-12-31

申请人： Xiqi Gao ,  Wenjin Wang ,  Xiaohu You ,  Xianggen Xia ,  Guochen Ou

发明人： Xiqi Gao ,  Wenjin Wang ,  Xiaohu You ,  Xianggen Xia ,  Guochen Ou

IPC分类号： H04J11/00 ,  H04L27/26

CPC分类号： H04L27/2697 ,  H04L27/2607 ,  H04L27/2698

摘要： The present invention provides an Offset Modulation Orthogonal Frequency Division Multiplexing (OFDM) and multi-access transmission method with a Cyclic Prefix (CP), including a generating method of the sent signal in the sending terminal and a processing method of the received signal in the receiving terminal, the method includes: in the sending terminal, performing generalized discrete Fourier Transform on real-value digital baseband modulated symbols and obtaining the frequency-domain signal; performing conjugate symmetric extension, frequency-domain filtering, sub-carrier mapping on the frequency-domain signal; performing Inverse Fast Fourier Transform on the frequency-domain signal after sub-carrier mapping; inserting a CP and obtaining the time-domain sent signal; in the receiving terminal, including: removing the CP, performing Fast Fourier Transform on CP removed symbols and obtaining the frequency-domain received signal; and based on multiple user joint frequency-domain equalization performing iterative detection decoding on the frequency-domain received signal. The present invention can obtain the low-signal envelope volatility in the condition of remaining spectrum efficiency, and adopting iterative received signal processing method based on multiple user joint frequency-domain equalization ensures the transmission reliability with low-complexity.

摘要翻译： 本发明提供了一种具有循环前缀（CP）的偏移调制正交频分复用（OFDM）和多址传输方法，包括发送终端中的发送信号的生成方法以及接收信号的处理方法 该方法包括：在发送终端中，对实数值数字基带调制符号进行广义离散付里叶变换，得到频域信号; 对频域信号进行共对称扩展，频域滤波，子载波映射; 在子载波映射后对频域信号进行快速傅立叶逆变换; 插入CP并获得时域发送信号; 在接收终端中，包括：去除CP，对CP去除符号执行快速傅里叶变换并获得频域接收信号; 并且基于对频域接收信号执行迭代检测解码的多用户联合频域均衡。 本发明可以在剩余频谱效率的条件下获得低信号包络波动率，采用基于多用户联合频域均衡的迭代接收信号处理方法，确保低复杂度的传输可靠性。

公开(公告)号：US08811145B2

公开(公告)日：2014-08-19

申请号：US13544640

申请日：2012-07-09

申请人： Wenjin Wang ,  Shaoqing Chen ,  Xiqi Gao ,  Long Qin ,  Dongming Wang

发明人： Wenjin Wang ,  Shaoqing Chen ,  Xiqi Gao ,  Long Qin ,  Dongming Wang

IPC分类号： H04J11/00

CPC分类号： H04B7/0413 ,  H04L25/03019

摘要： The present invention discloses a detection method, a receiver, and an apparatus in a multiple-input multiple-output single-carrier block transmission system. Through sorted QR decomposition (Sorted QR Decomposition, SQRD) decomposition based on a minimum mean squared error (Minimum Mean Squared Error, MMSE) criterion, an matrix inverse operation in minimum mean squared error equalization is avoided, and complexity is significantly reduced. In addition, through layer-by-layer soft interference cancellation detection after the SQRD decomposition and further iterative processing, better detection performance may be obtained. Especially, inter-stream interference suppression may be performed in first iteration. Compared with a conventional parallel iterative soft interference cancellation detection algorithm, with the same number of times of iteration, especially under the limit that a receiver can only support a small number of times of iteration, the inter-stream interference suppression has more evident advantages, and an advantage in the aspect of cost performance is very obvious.

摘要翻译： 本发明公开了一种多输入多输出单载波块传输系统中的检测方法，接收机和装置。 通过基于最小均方误差（Minimum Mean Squared Error，MMSE）标准的QR码分解（QRD分解，SQRD）分解，避免了最小均方误差均衡中的矩阵逆运算，复杂度显着降低。 另外，通过SQRD分解和进一步迭代处理后的逐层软干扰消除检测，可以获得更好的检测性能。 特别地，可以在第一次迭代中执行流间干扰抑制。 与传统的并行迭代软干扰消除检测算法相比，具有相同的迭代次数，特别是在接收机只能支持少量迭代的限制下，流间干扰抑制具有更明显的优点， 而在性能方面的优势非常明显。

公开(公告)号：US20130148488A1

公开(公告)日：2013-06-13

申请号：US13574773

申请日：2010-12-31

申请人： Xiqi Gao ,  Wenjin Wang ,  Xiaohu You ,  Xianggen Xia ,  Guochen Ou

发明人： Xiqi Gao ,  Wenjin Wang ,  Xiaohu You ,  Xianggen Xia ,  Guochen Ou

IPC分类号： H04L27/26

CPC分类号： H04L27/2697 ,  H04L27/2607 ,  H04L27/2698

摘要： The present invention provides an Offset Modulation Orthogonal Frequency Division Multiplexing (OFDM) and multi-access transmission method with a Cyclic Prefix (CP), including a generating method of the sent signal in the sending terminal and a processing method of the received signal in the receiving terminal, the method includes: in the sending terminal, performing generalized discrete Fourier Transform on real-value digital baseband modulated symbols and obtaining the frequency-domain signal; performing conjugate symmetric extension, frequency-domain filtering, sub-carrier mapping on the frequency-domain signal; performing Inverse Fast Fourier Transform on the frequency-domain signal after sub-carrier mapping; inserting a CP and obtaining the time-domain sent signal; in the receiving terminal, including: removing the CP, performing Fast Fourier Transform on CP removed symbols and obtaining the frequency-domain received signal; and based on multiple user joint frequency-domain equalization performing iterative detection decoding on the frequency-domain received signal. The present invention can obtain the low-signal envelope volatility in the condition of remaining spectrum efficiency, and adopting iterative received signal processing method based on multiple user joint frequency-domain equalization ensures the transmission reliability with low-complexity.

摘要翻译： 本发明提供了一种具有循环前缀（CP）的偏移调制正交频分复用（OFDM）和多址传输方法，包括发送终端中的发送信号的生成方法以及接收信号的处理方法 该方法包括：在发送终端中，对实数值数字基带调制符号进行广义离散付里叶变换，得到频域信号; 对频域信号进行共对称扩展，频域滤波，子载波映射; 在子载波映射后对频域信号进行快速傅立叶逆变换; 插入CP并获得时域发送信号; 在接收终端中，包括：去除CP，对CP去除符号执行快速傅里叶变换并获得频域接收信号; 并且基于对频域接收信号执行迭代检测解码的多用户联合频域均衡。 本发明可以在剩余频谱效率的条件下获得低信号包络波动率，采用基于多用户联合频域均衡的迭代接收信号处理方法，确保低复杂度的传输可靠性。