公开(公告)号：US20070270173A1

公开(公告)日：2007-11-22

申请号：US11314928

申请日：2005-12-20

申请人： Huaning Niu ,  Jyh Horng ,  Chiu Ngo

发明人： Huaning Niu ,  Jyh Horng ,  Chiu Ngo

IPC分类号： H04B7/00

CPC分类号： H04W52/346 ,  H04B7/0413 ,  H04B7/0443 ,  H04B7/0617

摘要： A method and system for constant-power loading for asymmetric antenna configurations. The sounding packet, the sounding bit in HT-SIG field, and the HT-LTF field in the PLCP protocol data unit (PPDU) are used to determine the number of transmit antennas and the number of data streams, wherein if the number of transmission streams is the same as the number of data streams, then a first set of power loading level (fixed uneven power loading) is applied, otherwise a second set of power loading level is applied. Alternatively, one additional bit in the HT-SIG filed of PLCP protocol data unit (PPDU) signaling field is used to signal the set of power loading level used.

摘要翻译： 用于不对称天线配置的恒功率负载的方法和系统。 探测分组，HT-SIG领域的探测位和PLCP协议数据单元（PPDU）中的HT-LTF字段用于确定发射天线的数量和数据流的数量，其中如果传输次数 流与数据流的数量相同，则应用第一组功率负载水平（固定不均匀功率负载），否则应用第二组功率负载水平。 或者，使用PLCP协议数据单元（PPDU）信令字段的HT-SIG档案中的一个附加位来表示所使用的一组功率负载水平。

公开(公告)号：US08249513B2

公开(公告)日：2012-08-21

申请号：US12189726

申请日：2008-08-11

申请人： Huaning Niu ,  Pengfei Xia ,  Chiu Ngo

发明人： Huaning Niu ,  Pengfei Xia ,  Chiu Ngo

IPC分类号： H04B1/00 ,  H04M1/00

CPC分类号： H01Q3/2605 ,  H01Q3/26 ,  H04B7/043 ,  H04B7/0691

摘要： A system and method of training antennas for two devices having different types of directional antennas in a wireless network is disclosed. The method includes transmitting a plurality of estimation training sequences from a transmit directional antenna to a receive directional antenna. The length of at least one of the plurality of training sequences is adapted to a number of antenna elements at one of the transmit and receive directional antennas. The method further includes transmitting data to the receiver via the transmit directional antenna tuned with an antenna parameter that is selected based at least in part on the plurality of estimation sequences.

摘要翻译： 公开了一种用于在无线网络中训练具有不同类型定向天线的两个设备的天线的系统和方法。 该方法包括从发射定向天线向接收定向天线发送多个估计训练序列。 所述多个训练序列中的至少一个训练序列的长度适合于所述发射和接收定向天线之一处的多个天线元件。 该方法还包括经由经由至少部分地基于多个估计序列选择的天线参数调谐的发射定向天线向接收机发送数据。

公开(公告)号：US08223873B2

公开(公告)日：2012-07-17

申请号：US12144574

申请日：2008-06-23

申请人： Pengfei Xia ,  Huaning Niu ,  Chiu Ngo

发明人： Pengfei Xia ,  Huaning Niu ,  Chiu Ngo

IPC分类号： H04B7/02

CPC分类号： H04B7/086 ,  H04B7/0617 ,  H04B7/0619 ,  H04L5/0023

摘要： A method and system for acquiring beamforming vectors using multiple spreading sequence spreading gains is disclosed. One embodiment of the invention allows time and power to be saved by spreading a training sequence with spreading sequences of different gains in different iterations of an iterative beamforming acquisition procedure. In one embodiment of the invention, the method comprises modulating, at a first station, a first training sequence with a first source beamforming vector, wherein the first training sequence has a first spreading gain, transmitting the modulated first training sequence to a second station, receiving a first response signal from the second station, obtaining a second source beamforming vector based on the first response signal, modulating, at the first station, a second training sequence with the second source beamforming vector, wherein the second training signal has a second spreading gain which is different from the first spreading gain, transmitting the modulated second training sequence to the second station, receiving a second response signal from the second station, obtaining a third source beamforming vector based on the second response signal, and determining whether to use the third source beamforming vector to modulate a data signal to be transmitted to the second station.

摘要翻译： 公开了一种使用多个扩展序列扩展增益获取波束成形向量的方法和系统。 本发明的一个实施例允许通过在迭代波束形成获取过程的不同迭代中扩展具有不同增益的扩展序列的训练序列来节省时间和功率。 在本发明的一个实施例中，该方法包括在第一站处利用第一源波束形成向量来调制第一训练序列，其中第一训练序列具有第一扩展增益，将调制的第一训练序列发送到第二站， 从所述第二站接收第一响应信号，基于所述第一响应信号获得第二源波束成形向量，在所述第一站处调制具有所述第二源波束形成向量的第二训练序列，其中所述第二训练信号具有第二扩频 与第一扩展增益不同的增益，将调制的第二训练序列发送到第二站，从第二站接收第二响应信号，基于第二响应信号获得第三源波束成形向量，以及确定是否使用 第三源波束成形矢量来调制要发送到第二站的数据信号。

公开(公告)号：US07889707B2

公开(公告)日：2011-02-15

申请号：US11906350

申请日：2007-10-02

申请人： Huaning Niu ,  Chiu Ngo

发明人： Huaning Niu ,  Chiu Ngo

IPC分类号： H04L12/28 ,  H04B7/216

CPC分类号： H04L1/007 ,  H03M13/1102 ,  H03M13/356 ,  H04L1/1816 ,  H04L1/1867

摘要： A method and system for wireless data communication is provided, which involves constructing a data payload containing data, partitioning the data payload into fragments, performing block code encoding on each fragment, wherein at least one fragment is encoded at a different coding gain than another fragment, and transmitting the data payload including encoded fragments over a wireless channel.

摘要翻译： 提供了一种用于无线数据通信的方法和系统，其涉及构建包含数据的数据有效载荷，将数据有效载荷划分成片段，对每个片段执行块码编码，其中至少一个片段以不同于另一片段的编码增益被编码 并且通过无线信道发送包括编码片段的数据有效载荷。

公开(公告)号：US07729438B2

公开(公告)日：2010-06-01

申请号：US11292851

申请日：2005-12-01

申请人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

发明人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/0689 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/0606

摘要： A MIMO wireless system includes a transmitter having a parser that parses a bit stream into multiple spatial data streams and multiple interleavers corresponding to the multiple spatial data streams, where each interleaver interleaves the bits in the corresponding spatial data stream by performing multiple column rotations and row rotation, to increase diversity of the wireless system. The MIMO wireless system also includes a receiver that has deinterleavers that deinterleaves spatial bit streams transmitted by the transmitter.

摘要翻译： MIMO无线系统包括发射机，其具有将比特流解析为多个空间数据流的解析器和对应于多个空间数据流的多个交织器，其中每个交织器通过执行多个列旋转和行来交织相应空间数据流中的比特 旋转，以增加无线系统的多样性。 MIMO无线系统还包括具有解交织器的解交织器的接收机，其对由发射机发送的空间比特流进行解交织。

公开(公告)号：US07715803B2

公开(公告)日：2010-05-11

申请号：US11314928

申请日：2005-12-20

申请人： Huaning Niu ,  Jyh Chau Horng ,  Chiu Ngo

发明人： Huaning Niu ,  Jyh Chau Horng ,  Chiu Ngo

IPC分类号： H04B1/46

CPC分类号： H04W52/346 ,  H04B7/0413 ,  H04B7/0443 ,  H04B7/0617

摘要： A method and system for constant-power loading for asymmetric antenna configurations. The sounding packet, the sounding bit in HT-SIG field, and the HT-LTF field in the PLCP protocol data unit (PPDU) are used to determine the number of transmit antennas and the number of data streams, wherein if the number of transmission streams is the same as the number of data streams, then a first set of power loading level (fixed uneven power loading) is applied, otherwise a second set of power loading level is applied. Alternatively, one additional bit in the HT-SIG filed of PLCP protocol data unit (PPDU) signaling field is used to signal the set of power loading level used.

摘要翻译： 用于不对称天线配置的恒功率负载的方法和系统。 探测分组，HT-SIG领域的探测位和PLCP协议数据单元（PPDU）中的HT-LTF字段用于确定发射天线的数量和数据流的数量，其中如果传输次数 流与数据流的数量相同，则应用第一组功率负载水平（固定不均匀功率负载），否则应用第二组功率负载水平。 或者，使用PLCP协议数据单元（PPDU）信令字段的HT-SIG档案中的一个附加位来表示所使用的一组功率负载水平。

公开(公告)号：US07714783B2

公开(公告)日：2010-05-11

申请号：US11890207

申请日：2007-08-02

申请人： Huaning Niu ,  Pengfei Xia ,  Chiu Ngo

发明人： Huaning Niu ,  Pengfei Xia ,  Chiu Ngo

IPC分类号： H01Q3/26 ,  H01Q3/00

CPC分类号： H01Q3/26

摘要： A method and system for analog beamforming for wireless communication is provided. Such analog beamforming involves performing channel sounding to obtain channel sounding information, determining statistical channel information based on the channel sounding information, and determining analog beamforming coefficients based on the statistical channel information, for analog beamforming communication over multiple antennas.

摘要翻译： 提供了一种用于无线通信的模拟波束成形的方法和系统。 这种模拟波束形成涉及执行信道探测以获得信道探测信息，基于信道探测信息确定统计信道信息，以及基于统计信道信息确定用于多个天线上的模拟波束成形通信的模拟波束成形系数。

公开(公告)号：US07613243B2

公开(公告)日：2009-11-03

申请号：US11104808

申请日：2005-04-12

申请人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

发明人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

IPC分类号： H04K1/10

CPC分类号： H04L5/0044 ,  H04B7/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0023 ,  H04L27/2626

摘要： A MIMO wireless system includes a transmitter that has a transmitter having a parser that parses a bit stream into multiple spatial data streams and multiple interleavers corresponding to the multiple spatial data streams, where each interleaver interleaves the bits in the corresponding spatial data stream by performing multiple column rotation to increase diversity of the wireless system. The MIMO wireless system also includes a receiver that has deinterleavers that deinterleaves spatial bit streams transmitted by the transmitter.

摘要翻译： MIMO无线系统包括具有发射机的发射机，其具有将比特流解析为多个空间数据流的解析器和对应于多个空间数据流的多个交织器，其中每个交织器通过执行多个空间数据流来交织相应空间数据流中的比特 列旋转以增加无线系统的多样性。 MIMO无线系统还包括具有解交织器的解交织器的接收机，其对由发射机发送的空间比特流进行解交织。

公开(公告)号：US20090233556A1

公开(公告)日：2009-09-17

申请号：US12050071

申请日：2008-03-17

申请人： Pengfei Xia ,  Huaning Niu ,  Chiu Ngo

发明人： Pengfei Xia ,  Huaning Niu ,  Chiu Ngo

IPC分类号： H04B1/58

CPC分类号： H04B7/0617 ,  H04B7/0626

摘要： A method and system for beamforming communication in high throughput wireless communications. Analog beamforming involves constructing analog beamforming coefficients for beamforming communication on a wireless channel. Constructing analog beamforming coefficients includes selecting a signal tap from a multi-tap wireless channel for beamforming communication, wherein the selected signal tap has a higher signal quality relative to other signals taps, and determining beamforming coefficients for the selected tap by iterative acquisition of the coefficients based on power iteration.

摘要翻译： 一种用于在高吞吐量无线通信中波束成形通信的方法和系统。 模拟波束成形涉及在无线信道上构造用于波束成形通信的模拟波束成形系数。 构造模拟波束成形系数包括从用于波束成形通信的多抽头无线信道中选择信号抽头，其中所选择的信号抽头相对于其他信号抽头具有更高的信号质量，以及通过迭代获取系数来确定所选择的抽头的波束成形系数 基于权力迭代。

公开(公告)号：US20090047910A1

公开(公告)日：2009-02-19

申请号：US12189726

申请日：2008-08-11

申请人： Huaning Niu ,  Pengfei Xia ,  Chiu Ngo

发明人： Huaning Niu ,  Pengfei Xia ,  Chiu Ngo

IPC分类号： H04B7/00

CPC分类号： H01Q3/2605 ,  H01Q3/26 ,  H04B7/043 ,  H04B7/0691

摘要： A system and method of training antennas for two devices having different types of directional antennas in a wireless network is disclosed. The method includes transmitting a plurality of estimation training sequences from a transmit directional antenna to a receive directional antenna. The length of at least one of the plurality of training sequences is adapted to a number of antenna elements at one of the transmit and receive directional antennas. The method further includes transmitting data to the receiver via the transmit directional antenna tuned with an antenna parameter that is selected based at least in part on the plurality of estimation sequences.

摘要翻译： 公开了一种用于在无线网络中训练具有不同类型定向天线的两个设备的天线的系统和方法。 该方法包括从发射定向天线向接收定向天线发送多个估计训练序列。 所述多个训练序列中的至少一个训练序列的长度适合于所述发射和接收定向天线之一处的多个天线元件。 该方法还包括经由经由至少部分地基于多个估计序列选择的天线参数调谐的发射定向天线向接收机发送数据。