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公开(公告)号：US08995568B1
公开(公告)日：2015-03-31
申请号：US12546907
申请日：2009-08-25
申请人： Songping Wu , Quan Zhou , Manyuan Shen , Hongyuan Zhang , Hui-Ling Lou
发明人： Songping Wu , Quan Zhou , Manyuan Shen , Hongyuan Zhang , Hui-Ling Lou
摘要： Devices, systems, methods, and other embodiments associated with phase based transformation of repeated signals are described. In one embodiment, an apparatus includes duplication logic configured to duplicate a string of data to form a duplicate string of data. Transformation logic is configured to modify phases associated with the string of data to generate a modified string of data. Signal generation logic is configured to generate a signal for wireless transmission where the signal having at least the modified string of data and the duplicate string of data.
摘要翻译： 描述了与重复信号的基于相位的变换相关联的设备，系统，方法和其他实施例。 在一个实施例中，一种装置包括复制逻辑，配置为复制一串数据以形成重复的数据串。 变换逻辑被配置为修改与该数据串相关联的相位以产生经修改的数据串。 信号生成逻辑被配置为生成用于无线传输的信号，其中信号至少具有经修改的数据串和重复的数据串。
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公开(公告)号：US08184052B1
公开(公告)日：2012-05-22
申请号：US12562782
申请日：2009-09-18
申请人： Songping Wu , Manyuan Shen , Quan Zhou , Hongyuan Zhang , Hui-Ling Lou
发明人： Songping Wu , Manyuan Shen , Quan Zhou , Hongyuan Zhang , Hui-Ling Lou
CPC分类号： H04B7/0617 , H01Q3/2605 , H01Q3/40 , H04B7/0417 , H04B7/0634 , H04B7/088
摘要： A method for beamforming in a communication system includes receiving a plurality of signals via a plurality of antennas, where the plurality of signals corresponds to at least one known training signal, generating a respective one of a plurality of different antenna weight vectors to be applied to the plurality of antennas as each of the plurality of signals is received, where each of the plurality of antenna weight vectors is a respective base vector of a unitary matrix, and generating a receiver antenna weight vector based on at least the received plurality of signals, the plurality of different antenna weight vectors, and the at least one known training signal.
摘要翻译： 一种用于通信系统中的波束成形的方法包括经由多个天线接收多个信号，其中多个信号对应于至少一个已知的训练信号，产生要应用于多个不同的天线权重向量中的相应一个 接收作为多个信号中的每一个的多个天线，其中多个天线权重向量中的每一个是酉矩阵的相应基本向量，并且至少基于所接收的多个信号生成接收机天线权重向量， 所述多个不同的天线权重向量和所述至少一个已知的训练信号。
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公开(公告)号：US08446317B1
公开(公告)日：2013-05-21
申请号：US13474691
申请日：2012-05-17
申请人： Songping Wu , Manyuan Shen , Quan Zhou , Hongyuan Zhang , Hui-Ling Lou
发明人： Songping Wu , Manyuan Shen , Quan Zhou , Hongyuan Zhang , Hui-Ling Lou
CPC分类号： H04B7/0617 , H01Q3/2605 , H01Q3/40 , H04B7/0417 , H04B7/0634 , H04B7/088
摘要： In a method for beamforming in communication a system, a plurality of different antenna weight vectors are generated. Each of the plurality of antenna weight vectors is a respective base vector of a unitary matrix. At least one training signal is transmitted a plurality of times via a plurality of antennas. A respective antenna weight vector from the plurality of different antenna weight vectors is applied each time the at least one training signal is transmitted. Feedback signals are received, where the feedback signals correspond to the at least one training signal transmitted the plurality of times and received at a receiver. A transmitter antenna weight vector is generated based on a mathematical combination of at least (i) the at least one training signal and (ii) the feedback signals.
摘要翻译： 在通信系统中波束成形的方法中，生成多个不同的天线权重向量。 多个天线加权矢量中的每一个是酉矩阵的各自的基矢量。 至少一个训练信号通过多个天线被多次发送。 每次发送至少一个训练信号时，应用来自多个不同天线权重向量的各自的天线权重向量。 接收反馈信号，其中反馈信号对应于多次发射并在接收机处接收的至少一个训练信号。 基于至少（i）至少一个训练信号和（ii）反馈信号的数学组合来生成发射机天线权重向量。
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公开(公告)号：US08706039B2
公开(公告)日：2014-04-22
申请号：US12548393
申请日：2009-08-26
申请人： Hongyuan Zhang , Manyuan Shen , Songping Wu , Hui-Ling Lou , Yong Liu
发明人： Hongyuan Zhang , Manyuan Shen , Songping Wu , Hui-Ling Lou , Yong Liu
IPC分类号： H04B1/00
CPC分类号： H04B1/04 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04B7/0684 , H04B7/0695 , H04B7/0848 , H04B7/086 , H04B7/088
摘要： A method for beamforming in a communication system includes receiving a first plurality of training data units via a plurality of antennas, applying a different steering vector as each training data unit is received, generating a first plurality of quality indicators based on the first plurality of received training data units, such that each of the first plurality of quality indicators corresponds to a respective one of the first plurality of received training data units, and selecting a steering vector based on the different steering vectors and the first plurality of quality indicators.
摘要翻译： 一种用于在通信系统中的波束成形的方法包括经由多个天线接收第一多个训练数据单元，在接收到每个训练数据单元时应用不同的导向向量，基于所接收的第一多个接收到的第一多个接收到的训练数据单元生成第一多个质量指示符 训练数据单元，使得所述第一多个质量指示符中的每一个对应于所述第一多个接收到的训练数据单元中的相应一个，并且基于所述不同的导向向量和所述第一多个质量指示符来选择导向向量。
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公开(公告)号：US08477813B2
公开(公告)日：2013-07-02
申请号：US12548205
申请日：2009-08-26
申请人： Hongyuan Zhang , Rohit U. Nabar , Manyuan Shen , Songping Wu , Hui-Ling Lou , Yong Liu
发明人： Hongyuan Zhang , Rohit U. Nabar , Manyuan Shen , Songping Wu , Hui-Ling Lou , Yong Liu
IPC分类号： H04J3/06
CPC分类号： H04W16/28 , H04L25/03343 , H04L27/2613 , H04L2025/03426 , H04L2025/03789 , H04L2025/03815
摘要： In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, a beamforming training (BFT) data unit that conforms to a second format is transmitted, wherein a length of the BFT data unit is shorter than lengths supported by the first format, wherein the BFT data unit is for transmitting PHY beamforming training information. Information to indicate the BFT data unit conforms to the second format is transmitted to a receiving device. The BFT data unit is generated according to the second format, wherein the BFT data unit includes BFT information elements. The BFT data unit is then transmitted to the receiving device.
摘要翻译： 在其中通信设备利用符合第一格式的数据单元交换信息的无线通信系统中，发送符合第二格式的波束形成训练（BFT）数据单元，其中所述BFT数据单元的长度短于所支持的长度 通过第一格式，其中BFT数据单元用于发送PHY波束形成训练信息。 用于指示符合第二格式的BFT数据单元的信息被发送到接收设备。 BFT数据单元根据第二格式生成，其中BFT数据单元包括BFT信息元素。 然后将BFT数据单元发送到接收设备。
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公开(公告)号：US20100054223A1
公开(公告)日：2010-03-04
申请号：US12548205
申请日：2009-08-26
申请人： Hongyuan Zhang , Rohit U. Nabar , Manyuan Shen , Songping Wu , Hui-Ling Lou , Yong Liu
发明人： Hongyuan Zhang , Rohit U. Nabar , Manyuan Shen , Songping Wu , Hui-Ling Lou , Yong Liu
IPC分类号： H04W4/00
CPC分类号： H04W16/28 , H04L25/03343 , H04L27/2613 , H04L2025/03426 , H04L2025/03789 , H04L2025/03815
摘要： In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, a beamforming training (BFT) data unit that conforms to a second format is transmitted, wherein a length of the BFT data unit is shorter than lengths supported by the first format, wherein the BFT data unit is for transmitting PHY beamforming training information. Information to indicate the BFT data unit conforms to the second format is transmitted to a receiving device. The BFT data unit is generated according to the second format, wherein the BFT data unit includes BFT information elements. The BFT data unit is then transmitted to the receiving device.
摘要翻译： 在其中通信设备利用符合第一格式的数据单元交换信息的无线通信系统中，发送符合第二格式的波束形成训练（BFT）数据单元，其中所述BFT数据单元的长度短于所支持的长度 通过第一格式，其中BFT数据单元用于发送PHY波束形成训练信息。 用于指示符合第二格式的BFT数据单元的信息被发送到接收设备。 BFT数据单元根据第二格式生成，其中BFT数据单元包括BFT信息元素。 然后将BFT数据单元发送到接收设备。
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公开(公告)号：US08175118B2
公开(公告)日：2012-05-08
申请号：US12466997
申请日：2009-05-15
申请人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
发明人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
IPC分类号： H04J3/24
CPC分类号： H04B1/707 , H04J13/0014 , H04J13/10 , H04L27/2613 , H04L27/262
摘要： A method of generating a data unit preamble includes generating a first field associated with at least one of packet synchronization information or frame boundary indication, and generating a second field associated with channel estimation, including generating a first channel estimation sequence (CES) symbol and generating a second CES symbol, so that at least one of 1) a sequence in the first field serves as a cyclic prefix of the first CES symbol, 2) a beginning portion of the second CES symbol serves as a cyclic postfix of the first CES symbol, or 3) an ending portion of the first CES symbol serves as a cyclic prefix of the second CES symbol.
摘要翻译： 一种产生数据单元前导码的方法包括生成与分组同步信息或帧边界指示中的至少一个相关联的第一字段，以及生成与信道估计相关联的第二字段，包括生成第一信道估计序列（CES）符号并产生 第二CES符号的第一个CES符号，使得第一个字段中的序列中的至少一个用作第一个CES符号的循环前缀，2）第二个CES符号的起始部分用作第一个CES符号的循环后缀 ，或3）第一CES符号的结束部分用作第二CES符号的循环前缀。
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公开(公告)号：US20090285319A1
公开(公告)日：2009-11-19
申请号：US12466984
申请日：2009-05-15
申请人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
发明人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
CPC分类号： H04B1/707 , H04J13/0014 , H04J13/10 , H04L27/2613 , H04L27/262
摘要： A method for generating a preamble of a data unit for transmission via a communication channel includes generating a first field of the preamble using one of a first sequence or a second sequence, such that the first sequence and the second sequence are complementary sequences such that a sum of out-of-phase aperiodic autocorrelation coefficients of the first sequence and the second sequence is zero; generating, using the other one of the first sequence or the second sequence, an indicator of a start of a second field of the preamble, the second field associated with channel estimation information, such that the indicator of the start of the second field immediately follows the first field; and generating the second field of the preamble.
摘要翻译： 一种用于生成用于经由通信信道进行传输的数据单元的前同步码的方法包括使用第一序列或第二序列中的一个生成前导码的第一字段，使得第一序列和第二序列是互补序列，使得 第一序列和第二序列的异相非周期自相关系数的和为零; 使用所述第一序列或所述第二序列中的另一个序列生成所述前导码的第二字段的开始的指示符，所述第二字段与信道估计信息相关联，使得所述第二字段的开始的指示符紧随其后 第一场; 以及产生所述前导码的第二字段。
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公开(公告)号：US20120219017A1
公开(公告)日：2012-08-30
申请号：US13465743
申请日：2012-05-07
申请人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
发明人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
CPC分类号： H04B1/707 , H04J13/0014 , H04J13/10 , H04L27/2613 , H04L27/262
摘要： A transmitter device includes a controller configured to generate a first field and a second field. The first field is at least one of a packet synchronization information field or a frame boundary indication field, the second field is a channel estimation field starting after the first field ends. The controller is configured to generate the second field at least in part by generating a first channel estimation sequence (CES) symbol and a second CES symbol. At least one of i) a sequence in the first field serves as a cyclic prefix of the first CES symbol, ii) a beginning portion of the second CES symbol serves as a cyclic postfix of the first CES symbol, or iii) an ending portion of the first CES symbol serves as a cyclic prefix of the second CES symbol.
摘要翻译： 发射机设备包括被配置为产生第一场和第二场的控制器。 第一字段是分组同步信息字段或帧边界指示字段中的至少一个，第二字段是在第一字段结束之后开始的信道估计字段。 控制器被配置为至少部分地通过生成第一信道估计序列（CES）符号和第二CES符号来生成第二字段。 i）第一字段中的序列中的至少一个用作第一CES符号的循环前缀，ii）第二CES符号的开始部分用作第一CES符号的循环后缀，或iii）结束部分 的第一个CES符号用作第二个CES符号的循环前缀。
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公开(公告)号：US08929397B2
公开(公告)日：2015-01-06
申请号：US13465743
申请日：2012-05-07
申请人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
发明人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou , Quan Zhou
CPC分类号： H04B1/707 , H04J13/0014 , H04J13/10 , H04L27/2613 , H04L27/262
摘要： A transmitter device includes a controller configured to generate a first field and a second field. The first field is at least one of a packet synchronization information field or a frame boundary indication field, the second field is a channel estimation field starting after the first field ends. The controller is configured to generate the second field at least in part by generating a first channel estimation sequence (CES) symbol and a second CES symbol. At least one of i) a sequence in the first field serves as a cyclic prefix of the first CES symbol, ii) a beginning portion of the second CES symbol serves as a cyclic postfix of the first CES symbol, or iii) an ending portion of the first CES symbol serves as a cyclic prefix of the second CES symbol.
摘要翻译： 发射机设备包括被配置为产生第一场和第二场的控制器。 第一字段是分组同步信息字段或帧边界指示字段中的至少一个，第二字段是在第一字段结束之后开始的信道估计字段。 控制器被配置为至少部分地通过生成第一信道估计序列（CES）符号和第二CES符号来生成第二字段。 i）第一字段中的序列中的至少一个用作第一CES符号的循环前缀，ii）第二CES符号的开始部分用作第一CES符号的循环后缀，或iii）结束部分 的第一个CES符号用作第二个CES符号的循环前缀。
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