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1. 发明授权

US08477813B2 Physical layer data unit format 有权
标题翻译：物理层数据单元格式
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。

2. 发明申请

US20100054223A1 Physical Layer Data Unit Format 有权
标题翻译：物理层数据单元格式
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。

3. 发明授权

US08706039B2 Beamforming by sector sweeping 有权
标题翻译：按行业划分波动
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。

4. 发明授权

US08335167B1 Refining beamforming techniques for phased-array antennas 有权
标题翻译：相控阵天线的精细波束成形技术
公开(公告)号：US08335167B1
公开(公告)日：2012-12-18
申请号：US12698810
申请日：2010-02-02
申请人： Hongyuan Zhang , Hui-Ling Lou , Yong Liu , Songping Wu
发明人： Hongyuan Zhang , Hui-Ling Lou , Yong Liu , Songping Wu
IPC分类号： H04B7/00
CPC分类号： H04B7/0617 , H04B7/0626 , H04B7/0634
摘要： Refining beamforming techniques for use in a communication system. In one embodiment, a method for beamforming in a communication system includes generating multiple training signals to be transmitted via multiple antennas over a communication channel, including applying a different antenna weight vector (AWV) to each of the multiple training signals. The method further includes receiving feedback generated using the multiple training signals, where the feedback includes a transmitter AWV for use with the multiple antennas and/or channel state information (CSI) descriptive of the communication channel.
摘要翻译：用于通信系统的优化波束成形技术。在一个实施例中，在通信系统中用于波束成形的方法包括：生成将通过通信信道经由多个天线发送的多个训练信号，包括对多个训练信号中的每一个应用不同的天线权重向量（AWV）。该方法还包括接收使用多个训练信号产生的反馈，其中反馈包括用于与多个天线一起使用的发射机AWV和/或描述通信信道的信道状态信息（CSI）。

5. 发明授权

US08195112B1 Time-reversal-based communication 有权
标题翻译：基于时间反转的沟通
公开(公告)号：US08195112B1
公开(公告)日：2012-06-05
申请号：US12481884
申请日：2009-06-10
申请人： Hongyuan Zhang , Arul Durai Murugan Palanivelu , Rohit U. Nabar , Songping Wu , Hui-Ling Lou
发明人： Hongyuan Zhang , Arul Durai Murugan Palanivelu , Rohit U. Nabar , Songping Wu , Hui-Ling Lou
IPC分类号： H01Q11/12 , H04B1/04
CPC分类号： H04W52/225 , H04W52/226
摘要： Time-reversal filtering may be used to temporally focus a signal to be transmitted. Power can be reduced at the transmitter so that the temporally focused signal is within spectral mask requirements. In one embodiment, the effect of the time-reversal filter on the power spectral density for a particular transmitted signal can be calculated and the predicted power spectral density can be compared to the permitted spectral mask to identify violations, if any, of the spectral mask. The transmitter power can then be reduced by the amount of the violation. In another embodiment, a set of different time-reversal filters that meet the spectral mask requirements can be provided in advance, and the most appropriate filter—e.g., the one with the best signal-to-noise ratio for the particular signal—can be chosen from the set of filters.
摘要翻译：可以使用时间反转滤波来暂时聚焦待传输的信号。在发射机处可以降低功率，使得时间聚焦的信号在频谱掩模要求之内。在一个实施例中，可以计算时间反转滤波器对于特定发射信号的功率谱密度的影响，并且可以将预测的功率谱密度与允许的光谱掩模进行比较以识别光谱掩模（如果有的话）。然后可以将发射机功率减少违规量。在另一个实施例中，可以预先提供满足频谱掩模要求的一组不同的时间反转滤波器，并且最合适的滤波器（例如，对于特定信号具有最佳信噪比的滤波器）可以是从一组过滤器中选择。

6. 发明授权

US08184052B1 Digital beamforming scheme for phased-array antennas 有权
标题翻译：用于相控阵天线的数字波束成形方案
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
IPC分类号： H01Q3/00 , H01Q3/26
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。

7. 发明申请

US20100008436A1 Physical Layer Frame Format Design for Wideband Wireless Communications Systems 有权
标题翻译：宽带无线通信系统的物理层帧格式设计
公开(公告)号：US20100008436A1
公开(公告)日：2010-01-14
申请号：US12489865
申请日：2009-06-23
申请人： Hongyuan Zhang , Rohit U. Nabar , Arul Durai Murugan Palanivelu , Hui-Ling Lou , Songping Wu
发明人： Hongyuan Zhang , Rohit U. Nabar , Arul Durai Murugan Palanivelu , Hui-Ling Lou , Songping Wu
IPC分类号： H04L27/28
CPC分类号： H04L27/2649 , H04L1/0072 , H04L1/0079 , H04L5/0007 , H04L5/0092 , H04L25/0204 , H04L25/022 , H04L27/0008 , H04L27/0012 , H04L27/2601 , H04L27/2602
摘要： Systems and methods are provided for processing a payload portion of a received signal in a single carrier mode or a multiple carrier mode based on a portion of the received signal. A single carrier signaling portion is received at a first rate, and whether the payload portion of the signal is a single carrier signal or a multiple carrier signal is detected from the received single carrier signaling portion. The payload portion of the received signal is received at the first rate and demodulated in a single carrier mode if the detecting determines that the payload portion of the received signal is a single carrier signal, and the payload portion of the received signal is demodulated in a multiple carrier mode if the detecting determines that the payload portion of the received signal is a multiple carrier signal.
摘要翻译：提供了系统和方法，用于基于接收信号的一部分，以单载波模式或多载波模式处理接收信号的有效载荷部分。以第一速率接收单载波信令部分，以及信号的有效载荷部分是单载波信号还是从所接收的单载波信令部分检测多载波信号。如果检测结果确定接收信号的有效载荷部分是单载波信号，则以第一速率接收接收信号的有效载荷部分并以单载波模式进行解调，并且接收信号的有效载荷部分被解调为多载波模式，如果检测确定接收信号的有效载荷部分是多载波信号。

8. 发明授权

US08897394B1 Methods and apparatus for adaptively selecting a communications mode in high frequency systems 有权
标题翻译：用于在高频系统中自适应选择通信模式的方法和装置
公开(公告)号：US08897394B1
公开(公告)日：2014-11-25
申请号：US12400442
申请日：2009-03-09
申请人： Rohit U. Nabar , Hongyuan Zhang , Arul Durai Murugan Palanivelu , Hui-Ling Lou , Songping Wu
发明人： Rohit U. Nabar , Hongyuan Zhang , Arul Durai Murugan Palanivelu , Hui-Ling Lou , Songping Wu
IPC分类号： H03K9/00
CPC分类号： H04W72/085 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L5/0069 , H04L5/0085 , H04L25/0204 , H04L25/0228 , H04L27/0008 , H04L27/261 , H04W24/10 , H04W88/06
摘要： Methods and apparatus are provided for adaptively selecting a communications mode in high frequency systems. A first dual-mode device having capabilities of using two or more high frequency communications modes, such as OFDM and SC modulation, may transmit a signal to a second dual-mode device with the same capabilities. The second dual-mode device may compute a channel characteristic associated with a high frequency communications channel and select an optimal high frequency communications mode. The second dual-mode device may transmit information indicative of the channel characteristic or the selected communications mode to the first dual-mode device. The first dual-mode device may select and operate using the optimal high frequency communications mode based on the information received from the second dual-mode device. The first and second dual-mode devices may communicate using the selected high frequency communications mode.
摘要翻译：提供了用于在高频系统中自适应地选择通信模式的方法和装置。具有使用诸如OFDM和SC调制之类的两个或多个高频通信模式的能力的第一双模设备可以将信号发送到具有相同能力的第二双模设备。第二双模设备可以计算与高频通信信道相关联的信道特性，并选择最佳高频通信模式。第二双模设备可以向第一双模设备发送指示信道特性或所选通信模式的信息。第一双模设备可以基于从第二双模设备接收的信息，使用最佳高频通信模式来选择和操作。第一和第二双模式设备可以使用所选择的高频通信模式进行通信。

9. 发明申请

US20130235908A1 APPARATUS FOR GENERATING SPREADING SEQUENCES AND DETERMINING CORRELATION 审中-公开
标题翻译：用于生成扩展序列和确定相关性的装置
公开(公告)号：US20130235908A1
公开(公告)日：2013-09-12
申请号：US13771596
申请日：2013-02-20
申请人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou
发明人： Hongyuan Zhang , Rohit U. Nabar , Songping Wu , Hui-Ling Lou
IPC分类号： H04B1/707
CPC分类号： H04B1/707 , H04J13/0014 , H04J13/10 , H04L27/2613 , H04L27/262
摘要： A circuit for use in a complementary Golay sequence generator or in a complementary Golay sequence correlator includes an input configured to receive an input signal, a set of delay elements, including delay elements corresponding to respective delays of 1, 2, 4, 8, 16, 32, and 64, and a set of multipliers interconnected with the input and the set of delay elements. The set of multipliers is configured to apply weight factors, and the weight factors define the sequence 1,1,−1,1,−1,1,−1. The circuit also includes a pair of outputs configured to output, in response to the input signal, one of (i) a pair of complementary Golay sequences or (ii) a pair of correlation output signals, using (a) the set of delay elements and (b) the set of weight multipliers.
摘要翻译：用于互补Golay序列发生器或互补Golay序列相关器的电路包括被配置为接收输入信号的输入，一组延迟元件，包括对应于1,2,4,8,16的各个延迟的延迟元件，32和64，以及与输入和该组延迟元件互连的一组乘法器。乘数组被配置为应用权重因子，权重因子定义了序列1,1,1,1,1,1,1。电路还包括一对输出，其被配置为响应于输入信号输出（i）一对互补格雷序列中的一个或（ii）一对相关输出信号，使用（a）该组延迟元件和（b）一组权重乘数。

10. 发明授权

US08446317B1 Beamforming scheme for phased-array antennas 有权
标题翻译：相控阵天线的波束成形方案
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
IPC分类号： H01Q3/00 , H01Q3/26
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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