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1. 发明授权

US08175118B2 Efficient physical layer preamble format 有权
标题翻译：高效的物理层前导码格式
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。

2. 发明申请

US20090285319A1 Efficient Physical Layer Preamble Format 有权
标题翻译：高效物理层前导格式
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
IPC分类号： H04L27/28 , H04L27/00 , H04L27/20
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。

3. 发明授权

US08929397B2 Efficient physical layer preamble format 有权
标题翻译：高效的物理层前导码格式
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
IPC分类号： H04J3/24 , H04L27/26 , H04B1/707 , H04J13/10 , H04J13/00
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。

4. 发明申请

US20120219017A1 Efficient Physical Layer Preamble Format 审中-公开
标题翻译：高效物理层前导格式
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
IPC分类号： H04B1/709 , H04L12/56
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。

5. 发明授权

US08331419B2 Efficient physical layer preamble format 有权
标题翻译：高效的物理层前导码格式
公开(公告)号：US08331419B2
公开(公告)日：2012-12-11
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
IPC分类号： H04B1/00
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。

6. 发明申请

US20090285240A1 Efficient Physical Layer Preamble Format 有权
标题翻译：高效物理层前导格式
公开(公告)号：US20090285240A1
公开(公告)日：2009-11-19
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： H04L29/08
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。

7. 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。

8. 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。

9. 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。

10. 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。

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