公开(公告)号：US08352845B2

公开(公告)日：2013-01-08

申请号：US13315125

申请日：2011-12-08

申请人： Arthur Robert Calderbank ,  Ayman F. Naguib ,  Nambirajan Seshadri ,  Vahid Tarokh

发明人： Arthur Robert Calderbank ,  Ayman F. Naguib ,  Nambirajan Seshadri ,  Vahid Tarokh

IPC分类号： H03M13/03 ,  H04B7/02

CPC分类号： H04L1/0625 ,  A01K2217/075 ,  C07K14/78 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/0891 ,  H04L1/0041 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0618 ,  H04L27/20

摘要： A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas is disclosed. A set of bits of a digital signal are used to generate a codeword. Codewords are provided according to a channel code. Delay elements may be provided in antenna output channels, or with suitable code construction delay may be omitted. n signals represent n symbols of a codeword are transmitted with n different transmit antennas. At the receiver MSLE or other decoding is used to decode the noisy received sequence. The parallel transmission and channel coding enables an increase the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenated with error correction codes under appropriate conditions.

摘要翻译： 公开了一种用于增加数据速率并使用多个发射天线提供天线分集的方法和装置。 使用数字信号的一组位来产生码字。 代码字根据通道代码提供。 可以在天线输出通道中提供延迟元件，或者可以省略适当的代码结构延迟。 n个信号表示用n个不同的发射天线发送码字的n个符号。 在接收机MSLE或其他解码用于解码噪声接收序列。 并行传输和信道编码能够提高数据速率与以前的技术相同，即使在衰落条件下也能恢复数据速率。 信道编码可以在适当的条件下与纠错码连接。

公开(公告)号：US08351545B2

公开(公告)日：2013-01-08

申请号：US12650007

申请日：2009-12-30

申请人： Siavash Alamouti ,  Patrick Poon ,  Vahid Tarokh

发明人： Siavash Alamouti ,  Patrick Poon ,  Vahid Tarokh

IPC分类号： H04B7/06 ,  H04B7/10 ,  H04L5/12 ,  H04L1/02 ,  H03M13/03

CPC分类号： H04B7/0697 ,  H03M13/256 ,  H04B1/0475 ,  H04B7/0669 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0631 ,  H04L25/03178 ,  H04L25/03331

摘要： Good transmission characteristics are achieved in the presence of fading with a transmitter that employs a trellis coder followed by a block coder. Correspondingly, the receiver comprises a Viterbi decoder followed by a block decoder. Advantageously, the block coder and decoder employ time-space diversity coding which, illustratively, employs two transmitter antennas and one receiver antenna.

公开(公告)号：US20100119006A1

公开(公告)日：2010-05-13

申请号：US12650007

申请日：2009-12-30

申请人： Siavash Alamouti ,  Patrick Poon ,  Vahid Tarokh

发明人： Siavash Alamouti ,  Patrick Poon ,  Vahid Tarokh

IPC分类号： H04L27/00 ,  H04L27/06

CPC分类号： H04B7/0697 ,  H03M13/256 ,  H04B1/0475 ,  H04B7/0669 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0631 ,  H04L25/03178 ,  H04L25/03331

摘要： Good transmission characteristics are achieved in the presence of fading with a transmitter that employs a trellis coder followed by a block coder. Correspondingly, the receiver comprises a Viterbi decoder followed by a block decoder. Advantageously, the block coder and decoder employ time-space diversity coding which, illustratively, employs two transmitter antennas and one receiver antenna.

摘要翻译： 在采用格网编码器后跟块编码器的发射机存在衰落的情况下，实现良好的传输特性。 相应地，接收机包括维特比解码器，随后是块解码器。 有利地，块编码器和解码器采用时间 - 空间分集编码，其示例性地使用两个发射机天线和一个接收机天线。

公开(公告)号：US07643568B2

公开(公告)日：2010-01-05

申请号：US11018780

申请日：2004-12-21

申请人： Siavash Alamouti ,  Patrick Poon ,  Vahid Tarokh

发明人： Siavash Alamouti ,  Patrick Poon ,  Vahid Tarokh

IPC分类号： H04L5/12 ,  H04B7/06

CPC分类号： H04B7/0697 ,  H03M13/256 ,  H04B1/0475 ,  H04B7/0669 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0631 ,  H04L25/03178 ,  H04L25/03331

摘要： Good transmission characteristics are achieved in the presence of fading with a transmitter that employs a trellis coder followed by a block coder. Correspondingly, the receiver comprises a Viterbi decoder followed by a block decoder. Advantageously, the block coder and decoder employ time-space diversity coding which, illustratively, employs two transmitter antennas and one receiver antenna.

摘要翻译： 在采用格网编码器后跟块编码器的发射机存在衰落的情况下，实现良好的传输特性。 相应地，接收机包括维特比解码器，随后是块解码器。 有利地，块编码器和解码器采用时间 - 空间分集编码，其示例性地使用两个发射机天线和一个接收机天线。

公开(公告)号：US20090180569A1

公开(公告)日：2009-07-16

申请号：US12410291

申请日：2009-03-24

申请人： Titus Lo ,  Vahid Tarokh

发明人： Titus Lo ,  Vahid Tarokh

IPC分类号： H04B7/02

CPC分类号： H04L1/0612 ,  H04B7/04 ,  H04B7/0848 ,  H04B7/0854 ,  H04L1/0054 ,  H04L1/0631

摘要： An improved multi-antenna receiver is realized for detecting signals transmitted by a multi-antenna transmitter by summing signals received at the plurality of receiver antennas after multiplying each by a respective constant. The summed signal is applied to a maximum likelihood detector. The respective constants, λj, where j is an index designating a particular receiver antenna, are determined by evaluating the largest eigenivector of the matrix A, where Λ is a vector containing values λj, and A is a matrix containing elements αij, which is the transfer function between the ith transmitter antenna to the jth receiver antenna. The αij terms are determined in the receiver in conventional ways.

摘要翻译： 实现了一种改进的多天线接收机，用于通过对在多个接收机天线之间接收的信号进行求和来检测由多天线发射机发送的信号，每个乘以相应的常数。 将求和的信号应用于最大似然检测器。 通过评估矩阵A的最大特征向量来确定相应常数lambdaj，其中j是指定特定接收机天线的索引，其中λ是包含值lambdaj的向量，并且A是包含元素alphaij的矩阵，其是 第i个发射天线与第j个接收机天线之间的传递函数。 alphaij术语在接收机中以常规方式确定。

公开(公告)号：US07526040B2

公开(公告)日：2009-04-28

申请号：US11371173

申请日：2006-03-08

申请人： Titus Lo ,  Vahid Tarokh

发明人： Titus Lo ,  Vahid Tarokh

IPC分类号： H04B7/02

CPC分类号： H04L1/0612 ,  H04B7/04 ,  H04B7/0848 ,  H04B7/0854 ,  H04L1/0054 ,  H04L1/0631

摘要： An improved multi-antenna receiver is realized for detecting signals transmitted by a multi-antenna transmitter by summing signals received at the plurality of receiver antennas after multiplying each by a respective constant. The summed signal is applied to a maximum likelihood detector. The respective constants, λj, where j is an index designating a particular receiver antenna, are determined by evaluating the largest eigenvector of the matrix A, where Λ is a vector containing the values λj, and A is a matrix containing elements αij, which is the transfer function between the ith transmitter antenna to the jth receiver antenna. The αij terms are determined in the receiver in conventional ways.

摘要翻译： 实现了一种改进的多天线接收机，用于通过对在多个接收机天线之间接收的信号进行求和来检测由多天线发射机发送的信号，每个乘以相应的常数。 将求和的信号应用于最大似然检测器。 通过评估矩阵A的最大特征向量来确定相应常数lambdaj，其中j是指定特定接收机天线的索引，其中λ是包含值lambdaj的向量，并且A是包含元素alphaij的矩阵， 第i个发射天线与第j个接收机天线之间的传递函数。 alphaij术语在接收机中以常规方式确定。

公开(公告)号：US07386077B2

公开(公告)日：2008-06-10

申请号：US11536474

申请日：2006-09-28

申请人： Siavash Alamouti ,  Vahid Tarokh

发明人： Siavash Alamouti ,  Vahid Tarokh

IPC分类号： H04L1/02

CPC分类号： H04B7/0857 ,  H04B1/02 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0667 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0837 ,  H04B7/0845 ,  H04B7/0854 ,  H04B7/0891 ,  H04B7/12 ,  H04L1/0054 ,  H04L1/04 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/0643 ,  H04L1/0668 ,  H04L1/08 ,  H04L25/0202

摘要： An electronic circuit for decoding wireless communication signals comprises: a combiner adapted to receive one of an incoming time diverse or frequency diverse signal representing blocks of encoded symbols. The blocks of symbols have been transmitted by a plurality of spatially diverse antennas. The combiner is configured to combine the received encoded symbols The received encoded symbols include negated selected symbols and conjugated selected symbols. A maximum likelihood detector is configured to receive the one of a time diverse or a frequency diverse signal. The detector receives the combined encoded signals and recovers transmitted signals using a channel transfer function.

摘要翻译： 一种用于解码无线通信信号的电子电路包括：组合器，适于接收表示编码符号块的输入时间分集或频率不同信号之一。 符号块已被多个空间多样的天线发送。 组合器被配置为组合接收到的编码符号。 所接收的编码符号包括非选择的符号和共轭的选定符号。 最大似然检测器被配置为接收时间分集或频率分集信号中的一个。 检测器接收组合的编码信号，并使用信道传递函数恢复传输的信号。

公开(公告)号：US20080008275A1

公开(公告)日：2008-01-10

申请号：US11828790

申请日：2007-07-26

申请人： Siavash Alamouti ,  Vahid Tarokh

发明人： Siavash Alamouti ,  Vahid Tarokh

IPC分类号： H04L1/02

CPC分类号： H04B7/0857 ,  H04B1/02 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0667 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0837 ,  H04B7/0845 ,  H04B7/0854 ,  H04B7/0891 ,  H04B7/12 ,  H04L1/0054 ,  H04L1/04 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/0643 ,  H04L1/0668 ,  H04L1/08 ,  H04L25/0202

摘要： A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only of simple arithmetic operations, such as negation and conjugation. The diversity created by the 5 transmitter utilizes space diversity and either time or frequency diversity. Space diversity is effected by redundantly transmitting over a plurality of antennas, time diversity is effected by redundantly transmitting at different times, and frequency diversity is effected by redundantly transmitting at different frequencies: Illustratively, using two transmit antennas and a single receive antenna, one of the disclosed embodiments provides the to same diversity gain as the maximal-ratio receiver combining (MRRC) scheme with one transmit antenna and two receive antennas. The principles of this invention are applicable to arrangements with more than two antennas, and an illustrative embodiment is disclosed using the same space block code with two transmit and two receive antennas.

公开(公告)号：US20070009070A1

公开(公告)日：2007-01-11

申请号：US11371173

申请日：2006-03-08

申请人： Titus Lo ,  Vahid Tarokh

发明人： Titus Lo ,  Vahid Tarokh

IPC分类号： H04B7/10

CPC分类号： H04L1/0612 ,  H04B7/04 ,  H04B7/0848 ,  H04B7/0854 ,  H04L1/0054 ,  H04L1/0631

摘要： An improved multi-antenna receiver is realized for detecting signals transmitted by a multi-antenna transmitter by summing signals received at the plurality of receiver antennas after multiplying each by a respective constant. The summed signal is applied to a maximum likelihood detector. The respective constants, λj, where j is an index designating a particular receiver antenna, are determined by evaluating the largest eigenvector of the matrix A, where Λ is a vector containing the values λj, and A is a matrix containing elements αij, which is the transfer function between the ith transmitter antenna to the jth receiver antenna. The αij terms are determined in the receiver in conventional ways.

摘要翻译： 实现了一种改进的多天线接收机，用于通过对在多个接收机天线之间接收的信号进行求和来检测由多天线发射机发送的信号，每个乘以相应的常数。 将求和的信号应用于最大似然检测器。 通过评估矩阵A的最大特征向量来确定其中j是指定特定接收机天线的索引的相应常数，其中λ是包含值λ的j ，并且A是包含元素αij的矩阵，其是第i个发射机天线到第j个超级天线之间的传递函数 >接收天线。 在常规方式中，在接收机中确定ααij项。

公开(公告)号：US06865373B2

公开(公告)日：2005-03-08

申请号：US10144950

申请日：2002-05-14

申请人： Wen Tong ,  Vahid Tarokh

发明人： Wen Tong ,  Vahid Tarokh

IPC分类号： H04L1/06 ,  H04B7/02

CPC分类号： H04L1/0618

摘要： The present invention is directed to apparatus and method for encoding and decoding data within a wireless network such that a MS preferably does not require multiple receivers to handle communications from BTSs with varying numbers of antennas. In embodiments of the present invention, a space-time matrix is utilized to encode the data streams being transmitted from a BTS such that a BTS with fewer antennas would simply have an encoding matrix with one or more of the columns or rows removed from the matrix. In this way, the MSs within the wireless network can be designed to decode with the use of only a single space-time encoding matrix, this space-time encoding matrix working for BTSs with various numbers of antennas.

摘要翻译： 本发明涉及用于对无线网络内的数据进行编码和解码的装置和方法，使得MS优选地不需要多个接收机来处理具有不同数量天线的BTS的通信。 在本发明的实施例中，使用时空矩阵来对从BTS发送的数据流进行编码，使得具有较少天线的BTS将简单地具有编码矩阵，其中一个或多个列或行从矩阵中移除 。 以这种方式，无线网络内的MS可以被设计为仅使用单个时空编码矩阵进行解码，该时空编码矩阵为具有各种数量天线的BTS工作。