公开(公告)号：US20120257695A1

公开(公告)日：2012-10-11

申请号：US13526345

申请日：2012-06-18

申请人： Bin Li ,  Hui Shen ,  Yi Luo ,  Feng Liu ,  Xianggen Xia

发明人： Bin Li ,  Hui Shen ,  Yi Luo ,  Feng Liu ,  Xianggen Xia

IPC分类号： H04L27/28 ,  H04B7/04 ,  H04B7/14

CPC分类号： H04L1/0668 ,  H04B7/026 ,  H04L1/0077 ,  H04L5/0023 ,  H04L5/0035 ,  H04L2001/0097

摘要： Embodiments of the present invention provide a network coding method and device in cooperative communication. The method, application and device relate to the field of wireless network communications. The method includes: receiving a signal sent from a first source node by using an OFDM symbol, and receiving a signal sent from a second source node by using an OFDM symbol; and performing a time reversal on one part of received mixed signals, and performing a reversal of a complex conjugate operation on the other part of the received mixed signals. The method, application and device have the advantage of obtaining a full diversity gain.

摘要翻译： 本发明的实施例提供了一种协作通信中的网络编码方法和装置。 该方法，应用和设备涉及无线网络通信领域。 该方法包括：通过使用OFDM符号接收从第一源节点发送的信号，以及通过使用OFDM符号接收从第二源节点发送的信号; 对所接收的混合信号的一部分进行时间反转，并对所接收的混合信号的另一部分进行复共轭运算的反转。 该方法，应用和装置具有获得全分集增益的优点。

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：US08675471B2

公开(公告)日：2014-03-18

申请号：US13096774

申请日：2011-04-28

申请人： XiangGen Xia ,  Bin Li ,  Hui Shen ,  Yi Luo

发明人： XiangGen Xia ,  Bin Li ,  Hui Shen ,  Yi Luo

IPC分类号： H04L1/02 ,  H04L5/00 ,  H04L1/06

CPC分类号： H04L5/0007 ,  H04B7/0691 ,  H04L1/06 ,  H04L1/0606 ,  H04L1/0643 ,  H04L1/0668

摘要： A method for constructing a space-time/space-frequency code, and a transmitting method and apparatus are provided, which relate to the field of wireless communication technologies. The method for constructing a space-time/space-frequency code includes: classifying at least two transmitter antennas into K groups, and classifying information symbols into K′ groups; constructing a Toeplitz matrix for information symbols in each group according to the number of transmitter antennas in a transmitter antenna group; and substituting the Toeplitz matrix for nonzero elements in an Orthogonal Space-Time Block Coding (OSTBC) matrix that is based on K and K′, and when the OSTBC matrix comprises a zero element, substituting a zero matrix with a corresponding dimension, for the zero element. The space-time code constructed with the above method has orthogonality.

摘要翻译： 提供了一种用于构建时空/空频码的方法，以及与无线通信技术领域有关的发送方法和装置。 用于构建空时/空间频率码的方法包括：将至少两个发射机天线分类为K个组，并将信息符号分类为K'组; 根据发射机天线组中发射机天线的数量，构建每组中的信息符号的Toeplitz矩阵; 并将Toeplitz矩阵替换为基于K和K'的正交空时块编码（OSTBC）矩阵中的非零元素，并且当OSTBC矩阵包括零元素时，用相应维度替换零矩阵，对于 零元素。 用上述方法构建的时空代码具有正交性。

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。

公开(公告)号：US20110255395A1

公开(公告)日：2011-10-20

申请号：US13096774

申请日：2011-04-28

申请人： XiangGen XIA ,  Bin Li ,  Hui Shen ,  Yi Luo

发明人： XiangGen XIA ,  Bin Li ,  Hui Shen ,  Yi Luo

IPC分类号： H04J11/00

CPC分类号： H04L5/0007 ,  H04B7/0691 ,  H04L1/06 ,  H04L1/0606 ,  H04L1/0643 ,  H04L1/0668

摘要： A method for constructing a space-time/space-frequency code, and a transmitting method and apparatus are provided, which relate to the field of wireless communication technologies. The method for constructing a space-time/space-frequency code includes: classifying at least two transmitter antennas into K groups, and classifying information symbols into K′ groups; constructing a Toeplitz matrix for information symbols in each group according to the number of transmitter antennas in a transmitter antenna group; and substituting the Toeplitz matrix for nonzero elements in an Orthogonal Space-Time Block Coding (OSTBC) matrix that is based on K and K′, and when the OSTBC matrix comprises a zero element, substituting a zero matrix with a corresponding dimension, for the zero element. The space-time code constructed with the above method has orthogonality.

摘要翻译： 提供了一种用于构建时空/空频码的方法，以及与无线通信技术领域有关的发送方法和装置。 用于构建空时/空间频率码的方法包括：将至少两个发射机天线分类为K个组，并将信息符号分类为K'组; 根据发射机天线组中发射机天线的数量，构建每组中的信息符号的Toeplitz矩阵; 并将Toeplitz矩阵替换为基于K和K'的正交空时块编码（OSTBC）矩阵中的非零元素，并且当OSTBC矩阵包括零元素时，用相应维度替换零矩阵，对于 零元素。 用上述方法构建的时空代码具有正交性。