公开(公告)号：US07889814B2

公开(公告)日：2011-02-15

申请号：US11804126

申请日：2007-05-17

申请人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

发明人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

IPC分类号： H04L27/06

CPC分类号： H04L1/0618 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0891 ,  H04L1/0643

摘要： A transmitter and a receiver are disclosed herein that support transmit antenna diversity using space-time block coding in a wireless communication system. The transmitter produces symbol combinations containing, as their elements, input symbols, the inversions and conjugates of the symbols, and symbols obtained by rotating the phases of the symbols once, forms a matrix having symbols in at least two columns orthogonal to each other with the symbol combinations, and transmits the matrix. The receiver detects symbols that minimize maximum likelihood (ML) decoding metrics over all possible symbols using channel gains from transmit antennas to a receive antenna. Also, the receiver selects candidate symbols among all possible symbols according to the characteristics of transmitted modulation symbols and detects symbols that minimize the ML decoding metrics.

摘要翻译： 本文公开的发射器和接收器在无线通信系统中支持使用空时块编码的发射天线分集。 发射机产生符号组合，其包含输入符号，符号的反转和共轭以及通过旋转符号的相位获得的符号一次作为其元素，形成具有彼此正交的至少两列中的符号的矩阵， 符号组合，并传输矩阵。 接收机通过使用从发射天线到接收天线的信道增益，检测所有可能符号上的最大似然（ML）解码度量的符号。 此外，接收机根据发送的调制符号的特性来选择所有可能符号中的候选符号，并且检测使ML解码度量最小化的符号。

公开(公告)号：US20060262714A1

公开(公告)日：2006-11-23

申请号：US10546081

申请日：2004-02-13

申请人： Vahid Tarokh ,  Jae-Hak Chung ,  Yung-Soo Kim ,  Chan-Soo Hwang

发明人： Vahid Tarokh ,  Jae-Hak Chung ,  Yung-Soo Kim ,  Chan-Soo Hwang

IPC分类号： H04J11/00 ,  H04J1/00

CPC分类号： H04L27/2623 ,  H04L1/0618 ,  H04L27/2615

摘要： Provided is a method of reducing a peak-to-average-power ratio in a multiple antenna orthogonal frequency division multiplexing communication system. The method includes: reducing a peak-to-average-power ratio of input serial data sequences; space-time coding the input serial data sequences with the reduced peak-to-average-power ratio to generate N symbols to be tranmitted via N antennas; receiving the serial data sequences of the N symbols to transform the serial data sequences into N parallel data sequences; allocating each of the N parallel data sequences to Ns sub-carriers and performing Inverse Fast Fourier Transform on the N parallel data sequences; transforming the N parallel data sequences into N serial data symbols; and replicating a portion of the serial data symbols to generate cyclic prefixes and interleaving the cyclic prefixes into starting portions of the serial data symbols to cyclically expand the N symbols.

摘要翻译： 提供了一种降低多天线正交频分复用通信系统中的峰值与平均功率比的方法。 该方法包括：降低输入串行数据序列的峰值与平均功率比; 以降低的峰均功率比对输入串行数据序列进行时空编码，以产生要通过N个天线发射的N个符号; 接收N个符号的串行数据序列以将串行数据序列变换成N个并行数据序列; 将N个并行数据序列中的每一个分配给N个子载波，并在N个并行数据序列上执行快速傅立叶逆变换; 将N个并行数据序列变换为N个串行数据符号; 并且复制一部分串行数据符号以产生循环前缀并且将循环前缀交织到串行数据符号的起始部分中以循环地扩展N个符号。

公开(公告)号：US07505527B2

公开(公告)日：2009-03-17

申请号：US10681937

申请日：2003-10-09

申请人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

发明人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

IPC分类号： H04B7/02

CPC分类号： H04L1/0618 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0891 ,  H04L1/0643

摘要： A transmitter and a receiver are disclosed herein that support transmit antenna diversity using space-time block coding in a wireless communication system. The transmitter produces symbol combinations containing, as their elements, input symbols, the inversions and conjugates of the symbols, and symbols obtained by rotating the phases of the symbols once, forms a matrix having symbols in at least two columns orthogonal to each other with the symbol combinations, and transmits the matrix. The receiver detects symbols that minimize maximum likelihood (ML) decoding metrics over all possible symbols using channel gains from transmit antennas to a receive antenna. Also, the receiver selects candidate symbols among all possible symbols according to the characteristics of transmitted modulation symbols and detects symbols that minimize the ML decoding metrics.

摘要翻译： 本文公开的发射器和接收器在无线通信系统中支持使用空时块编码的发射天线分集。 发射机产生符号组合，其包含输入符号，符号的反转和共轭以及通过旋转符号的相位获得的符号一次作为其元素，形成具有彼此正交的至少两列中的符号的矩阵， 符号组合，并传输矩阵。 接收机通过使用从发射天线到接收天线的信道增益，检测所有可能符号上的最大似然（ML）解码度量的符号。 此外，接收机根据发送的调制符号的特性来选择所有可能符号中的候选符号，并且检测使ML解码度量最小化的符号。

公开(公告)号：US07864876B2

公开(公告)日：2011-01-04

申请号：US11020285

申请日：2004-12-23

申请人： Seung-Hoon Nam ,  Yung-Soo Kim ,  Jae-Hak Chung ,  Vahid Tarokh ,  Chan-Soo Hwang

发明人： Seung-Hoon Nam ,  Yung-Soo Kim ,  Jae-Hak Chung ,  Vahid Tarokh ,  Chan-Soo Hwang

IPC分类号： H04B7/02

CPC分类号： H04L1/0643

摘要： A differential STBC transmitting/receiving apparatus in a multiple antenna system using eight or less transmit antennas is provided. In the differential STBC transmitting apparatus, a symbol mapper receives binary data and generates a number of symbols from the binary data, each symbol having a number of bits. A space-time block encoder generates an STBC by encoding the symbols. A differential processor differentially encodes the STBC through feedback and delay. A distribution matrix processor substitutes the differentially coded STBC into a distribution matrix preset according to the number of transmit antennas, and outputs the differential STBC code of the distribution matrix to the transmit antennas.

摘要翻译： 提供了一种使用八个或更少的发射天线的多天线系统中的差分STBC发射/接收装置。 在差分STBC发送装置中，符号映射器接收二进制数据并从二进制数据生成多个符号，每个符号具有多个位。 时空块编码器通过对符号进行编码来生成STBC。 差分处理器通过反馈和延迟对STBC进行差分编码。 分配矩阵处理器根据发射天线的数量将差分编码的STBC替换为预设的分布矩阵，并将分布矩阵的差分STBC码输出到发射天线。

公开(公告)号：US20050135500A1

公开(公告)日：2005-06-23

申请号：US11020804

申请日：2004-12-23

申请人： Seung-Hoon Nam ,  Yung-Soo Kim ,  Jae-Hak Chung ,  Vahid Tarokh ,  Chan-Soo Hwang

发明人： Seung-Hoon Nam ,  Yung-Soo Kim ,  Jae-Hak Chung ,  Vahid Tarokh ,  Chan-Soo Hwang

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04L1/06 ,  H04L27/00

CPC分类号： H04B7/02 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0668

摘要： A space-time block coding method using an auxiliary symbol in a multiple transmit/receive antenna system is provided. In the space-time block coding method, binary data to be transmitted is received. Free symbols and an auxiliary symbol are generated by dividing the received binary data into units of a predetermined number of bits. The free symbols and the auxiliary symbol are encoded according to an encoding matrix and transmitted.

摘要翻译： 提供了一种在多发射/接收天线系统中使用辅助符号的时空块编码方法。 在时空块编码方法中，接收要发送的二进制数据。 通过将接收的二进制数据分割成预定位数的单位来产生自由符号和辅助符号。 自由符号和辅助符号根据编码矩阵进行编码并传输。

公开(公告)号：US07274751B2

公开(公告)日：2007-09-25

申请号：US10674735

申请日：2003-09-30

申请人： Vahid Tarokh ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Yung-Soo Kim

发明人： Vahid Tarokh ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Yung-Soo Kim

IPC分类号： H04L27/04 ,  H04L1/02

CPC分类号： H04L1/0054 ,  H04L1/0041 ,  H04L1/0618

摘要： According to one aspect of the present invention, there is provided a signal transmission apparatus for a mobile communication system. In the signal transmission apparatus, a frame segmentation section segments an input frame into Bk bit group, where k=1, . . . , K. A first group of encoders encodes Bk bit group and outputs encoded symbols. A second group of encoders encodes other Bk′ bit group and output other encoded symbols. Each encoded symbol is encoded again to the transmit antennas using different functions. A transmission section includes a plurality of antennas in groups of a predetermined number of antennas, and the total number N of antennas is larger than the sum of the number of antenna groups. The transmission antennas transmit symbols encoded by one of the encoders.

摘要翻译： 根据本发明的一个方面，提供了一种用于移动通信系统的信号传输装置。 在信号发送装置中，帧分割部将输入帧分割为B = K位组，其中k = 1。 。 。 ，K.第一组编码器编码比特组，并输出编码的符号。 第二组编码器编码其他B＆gt; k'/ bit比特组并输出其他编码符号。 使用不同的功能将每个编码符号再次编码到发射天线。 传输部分包括预定数量的天线的多个天线，并且天线的总数N大于天线组的数量的总和。 发射天线发射由编码器之一编码的符号。

公开(公告)号：US20050135499A1

公开(公告)日：2005-06-23

申请号：US11020285

申请日：2004-12-23

申请人： Seung-Hoon Nam ,  Yung-Soo Kim ,  Jae-Hak Chung ,  Vahid Tarokh ,  Chan-Soo Hwang

发明人： Seung-Hoon Nam ,  Yung-Soo Kim ,  Jae-Hak Chung ,  Vahid Tarokh ,  Chan-Soo Hwang

IPC分类号： H04B7/06 ,  H03M13/00 ,  H04L1/02 ,  H04L1/06 ,  H04L27/00

CPC分类号： H04L1/0643

摘要： A differential STBC transmitting/receiving apparatus in a multiple antenna system using eight or less transmit antennas is provided. In the differential STBC transmitting apparatus, a symbol mapper receives binary data and generates a number of symbols from the binary data, each symbol having a number of bits. A space-time block encoder generates an STBC by encoding the symbols. A differential processor differentially encodes the STBC through feedback and delay. A distribution matrix processor substitutes the differentially coded STBC into a distribution matrix preset according to the number of transmit antennas, and outputs the differential STBC code of the distribution matrix to the transmit antennas.

摘要翻译： 提供了一种使用八个或更少的发射天线的多天线系统中的差分STBC发射/接收装置。 在差分STBC发送装置中，符号映射器接收二进制数据并从二进制数据生成多个符号，每个符号具有多个位。 时空块编码器通过对符号进行编码来生成STBC。 差分处理器通过反馈和延迟对STBC进行差分编码。 分配矩阵处理器根据发射天线的数量将差分编码的STBC替换为预设的分布矩阵，并将分布矩阵的差分STBC码输出到发射天线。

公开(公告)号：US20080130792A1

公开(公告)日：2008-06-05

申请号：US11804126

申请日：2007-05-17

申请人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

发明人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

IPC分类号： H03K9/00

CPC分类号： H04L1/0618 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0891 ,  H04L1/0643

摘要： A transmitter and a receiver are disclosed herein that support transmit antenna diversity using space-time block coding in a wireless communication system. The transmitter produces symbol combinations containing, as their elements, input symbols, the inversions and conjugates of the symbols, and symbols obtained by rotating the phases of the symbols once, forms a matrix having symbols in at least two columns orthogonal to each other with the symbol combinations, and transmits the matrix. The receiver detects symbols that minimize maximum likelihood (ML) decoding metrics over all possible symbols using channel gains from transmit antennas to a receive antenna. Also, the receiver selects candidate symbols among all possible symbols according to the characteristics of transmitted modulation symbols and detects symbols that minimize the ML decoding metrics.

摘要翻译： 本文公开的发射器和接收器在无线通信系统中支持使用空时块编码的发射天线分集。 发射机产生符号组合，其包含输入符号，符号的反转和共轭以及通过旋转符号的相位获得的符号一次作为其元素，形成具有彼此正交的至少两列中的符号的矩阵， 符号组合，并传输矩阵。 接收机通过使用从发射天线到接收天线的信道增益，检测所有可能符号上的最大似然（ML）解码度量的符号。 此外，接收机根据发送的调制符号的特性来选择所有可能符号中的候选符号，并且检测使ML解码度量最小化的符号。

公开(公告)号：US20060056539A1

公开(公告)日：2006-03-16

申请号：US11206563

申请日：2005-08-18

申请人： Seung-Hoon Nam ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Young-Ho Jung ,  Vahid Tarokh

发明人： Seung-Hoon Nam ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Young-Ho Jung ,  Vahid Tarokh

IPC分类号： H04B7/06

CPC分类号： H04L1/0668 ,  H04B7/0669 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0662

摘要： Disclosed is a differential space-time block coding apparatus with a high transmission rate in a wireless communication system employing multiple transmit antennas and a method thereof. The differential space-time block coding method includes the steps of, when elements of a transmission matrix B43v are transmitted in a predetermined block (a vth block) through a predetermined transmit antenna at a predetermined time, modulating a symbol Sv of inputted binary data to a symbol Sv+1, creating a matrix S44v+1 in a block (a (v+1)th block) following the predetermined block by substituting the modulated symbol for the matrix P44, and then, in order to perform a differential encoding function, multiplying the matrix B43v by the matrix S44v+1 so as to calculate a new matrix B43v+1 to be transmitted in the (v+1)th block.

摘要翻译： 公开了在采用多个发射天线的无线通信系统中具有高传输速率的差分时空块编码装置及其方法。 差分空时块编码方法包括以下步骤：当在预定块（av 0）中发送传输矩阵B V>的元素时， SUP>块）通过预定的发射天线在预定时间，将输入的二进制数据的符号S SUB调制到码元S + V + 1，创建矩阵S < 在块（a（v + 1）^{块的块（a（v + 1）块）中的SUB> 44 v + 1 然后，为了执行差分编码功能，将矩阵B v 乘以矩阵S 44， 以便计算要在第（v + 1）中发送的新的矩阵B v + 1 SUP> th 块。}