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：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：US20070082624A1

公开(公告)日：2007-04-12

申请号：US11527981

申请日：2006-09-27

申请人： Young-Ho Jung ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Vahid Tarokh

发明人： Young-Ho Jung ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Vahid Tarokh

IPC分类号： H04B1/02 ,  H04B7/02

CPC分类号： H04L1/0662 ,  H04L1/002

摘要： Disclosed is a mobile communication system using a Multiple Input Multiple Output (MIMO) scheme. A transmitter of the mobile communication system, generates a unitary space-time matrix to correspond to a codeword if the codeword to be transmitted in a first time interval is input, multiplies the unitary space-time matrix by a first final transmission matrix denoting signals transmitted in a second time interval before the first time interval, thereby generating a second final transmission matrix denoting signals to be transmitted in the second time interval, and transmits signals corresponding to the second final transmission matrix through a plurality of transmit antennas in the second time interval.

摘要翻译： 公开了使用多输入多输出（MIMO）方案的移动通信系统。 移动通信系统的发射机如果输入要在第一时间间隔中发送的码字，则产生一个单位时空矩阵，以对应于码字，将单位时空矩阵乘以表示发送的信号的第一最终传输矩阵 在第一时间间隔之前的第二时间间隔中，从而生成表示在第二时间间隔中要发送的信号的第二最终传输矩阵，并且在第二时间间隔中通过多个发射天线发送与第二最终传输矩阵相对应的信号 。

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：US09072065B2

公开(公告)日：2015-06-30

申请号：US13613758

申请日：2012-09-13

申请人： Gamini Senarath ,  Hang Zhang ,  Ho-Ting Cheng ,  Vahid Tarokh

发明人： Gamini Senarath ,  Hang Zhang ,  Ho-Ting Cheng ,  Vahid Tarokh

IPC分类号： H04B7/00 ,  H04W52/38 ,  H04W52/22

CPC分类号： H04W52/226 ,  H04W52/386 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/12

摘要： Methods and systems for providing joint power control (PC) and scheduling in a wireless network are provided. In one example, a method includes generating a near-optimal power pattern for PC and scheduling in accordance with long term channel statistics. The near-optimal PC solution may be generated by first generating a set of possible power patterns in accordance with likely scheduling scenarios, then statistically narrowing the set of possible power patterns to identify the most commonly used power patterns, and finally selecting one of the most commonly used power patterns as the near-optimal power pattern. In another example, a table of optimal PC solutions are provided for performing distributed PC and scheduling in an adaptive and/or dynamic manner.

摘要翻译： 提供了在无线网络中提供联合功率控制（PC）和调度的方法和系统。 在一个示例中，一种方法包括根据长期信道统计生成用于PC的近最优功率模式和调度。 可以通过首先根据可能的调度场景生成一组可能的功率模式，然后统计学地缩小可能的功率模式集合以识别最常用的功率模式，并且最后选择最多的功率模式 常用功率模式作为近最优功率模式。 在另一示例中，提供了用于以自适应和/或动态方式执行分布式PC和调度的最佳PC解决方案的表。

公开(公告)号：US08412106B2

公开(公告)日：2013-04-02

申请号：US10700329

申请日：2003-11-03

申请人： Marcus da Silva ,  William J. Crilly, Jr. ,  James Brennan ,  Robert J. Conley ,  Siavash Alamouti ,  Eduardo Casas ,  Hujun Yin ,  Bobby Jose ,  Yang-Seok Choi ,  Vahid Tarokh ,  Praveen Mehrotra

发明人： Marcus da Silva ,  William J. Crilly, Jr. ,  James Brennan ,  Robert J. Conley ,  Siavash Alamouti ,  Eduardo Casas ,  Hujun Yin ,  Bobby Jose ,  Yang-Seok Choi ,  Vahid Tarokh ,  Praveen Mehrotra

IPC分类号： H04B1/00

CPC分类号： H04B7/0617 ,  H04B7/04 ,  H04B7/0621 ,  H04W16/28 ,  H04W72/046

摘要： In an implementation of directed wireless communication, a multi-beam directed signal system coordinates directed wireless communication with client devices. A transmit beam-forming network routes data communication transmissions to the client devices via directed communication beams that are emanated from an antenna assembly, and a receive beam-forming network receives data communication receptions from the client devices via the directed communication beams.

摘要翻译： 在有向无线通信的实现中，多波束定向信号系统与客户端设备协调定向无线通信。 发射波束形成网络经由从天线组件发出的定向通信波束将数据通信传输路由到客户机设备，并且接收波束形成网络经由定向通信波束从客户端设备接收数据通信接收。

公开(公告)号：US08386898B2

公开(公告)日：2013-02-26

申请号：US11974395

申请日：2007-10-12

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 ,  H03M13/00

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 MLSE 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.