公开(公告)号：US20110274002A1

公开(公告)日：2011-11-10

申请号：US13041068

申请日：2011-03-04

申请人： Thomas E. PARE, JR. ,  Yung-Szu TU ,  Kiran ULN ,  Ravishankar H. MAHADEVAPPA

发明人： Thomas E. PARE, JR. ,  Yung-Szu TU ,  Kiran ULN ,  Ravishankar H. MAHADEVAPPA

IPC分类号： H04L12/26 ,  H04W24/00

CPC分类号： H04W4/08 ,  H04B7/0452 ,  H04W4/21 ,  H04W8/005 ,  H04W8/186 ,  H04W24/00 ,  H04W24/10 ,  H04W88/08

摘要： A method and system is disclosed for grouping the multiple stations connected to an access point (AP). The system and method comprise sending a sounding packet to a plurality of stations, wherein the stations may be all or part of the stations that are located within the range of the AP. The stations that receive the sounding packets respond to the AP, and the AP determines the channel state information (CSI) from the responses. According to the CSI, the AP divides the multiple stations into several groups. According to an embodiment of the present invention, a confirmation step is performed to each group of stations, respectively. The AP sends a second sounding packet to each group of stations, and verifies the CSI between each station group by group. Therefore, the method and system provides for monitoring the validation of each group by periodically sending sounding packets to each group.

摘要翻译： 公开了用于对连接到接入点（AP）的多个站进行分组的方法和系统。 该系统和方法包括向多个站发送探测分组，其中所述站可以是位于AP范围内的站的全部或部分。 接收到探测包的站响应AP，AP确定响应中的信道状态信息（CSI）。 根据CSI，AP将多个站分成几个组。 根据本发明的实施例，分别对每组电台执行确认步骤。 AP向每组站发送第二个探测包，并按组验证每个站组之间的CSI。 因此，该方法和系统通过周期性地向每个组发送声音分组来提供对每个组的验证的监视。

公开(公告)号：US20130243064A1

公开(公告)日：2013-09-19

申请号：US13424244

申请日：2012-03-19

申请人： John WONG ,  Thomas E. PARE, JR. ,  Gary A. ANWYL ,  Kiran ULN ,  Chih-Liang CHANG

发明人： John WONG ,  Thomas E. PARE, JR. ,  Gary A. ANWYL ,  Kiran ULN ,  Chih-Liang CHANG

IPC分类号： H04B17/00 ,  H04B7/02

CPC分类号： H04B7/0691 ,  H04B7/0608 ,  H04W52/241 ,  H04W52/245

摘要： A method and system for actively selecting antenna sets for a client are disclosed. In a first aspect, the method comprises sending a first channel packet from a transmitter to a receiver and sending a second channel packet corresponding to the received first channel packet from the receiver to the transmitter. The method includes collecting statistics of an antenna set related to the sending of the first and the second channel packets. The method includes comparing the collected statistics to previously collected statistics of another antenna set to select one of the antenna set and the another antenna set. In a second aspect, the system comprises a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to carry out the steps of the method.

摘要翻译： 公开了一种主动选择客户端天线组的方法和系统。 在第一方面，该方法包括从发射机向接收机发送第一信道分组，并将与所接收的第一信道分组对应的第二信道分组从接收机发送到发射机。 该方法包括收集与发送第一和第二信道分组有关的天线组的统计。 该方法包括将收集的统计信息与先前收集的另一个天线组的统计信息进行比较，以选择天线组和另一个天线组之一。 在第二方面，该系统包括耦合到处理器的处理器和存储器件，其中存储器设备存储应用，当应用由处理器执行时，该应用使处理器执行该方法的步骤。

公开(公告)号：US20120002622A1

公开(公告)日：2012-01-05

申请号：US13175722

申请日：2011-07-01

申请人： Ravishankar H. MAHADEVAPPA ,  Kiran ULN ,  Thomas E. PARE, JR.

发明人： Ravishankar H. MAHADEVAPPA ,  Kiran ULN ,  Thomas E. PARE, JR.

IPC分类号： H04W72/04 ,  H04W4/00

CPC分类号： H04W28/06 ,  H04L1/0072 ,  H04L1/0618

摘要： A method and system utilized in a wireless communication system is disclosed. The communication system includes a transmitter and one or more of stations in communication therewith. The method and system comprise encoding a data assignment of each of the data streams associated with a packet into a plurality of bits, wherein the plurality of bits are within a header of the packet within the transmitter. The method and system also includes decoding the plurality of bits by the one or more stations to allow the one or more stations to obtain the appropriate data stream.

摘要翻译： 公开了一种在无线通信系统中使用的方法和系统。 通信系统包括发射机和与其通信的一个或多个台。 该方法和系统包括将与分组相关联的每个数据流的数据分配编码为多个比特，其中多个比特位于发射机内的分组的头部之内。 所述方法和系统还包括通过所述一个或多个站解码所述多个比特，以允许所述一个或多个站获得适当的数据流。

公开(公告)号：US20120314594A1

公开(公告)日：2012-12-13

申请号：US13313920

申请日：2011-12-07

申请人： Ravishankar H. MAHADEVAPPA ,  Thomas E. PARE, JR. ,  Kiran ULN

发明人： Ravishankar H. MAHADEVAPPA ,  Thomas E. PARE, JR. ,  Kiran ULN

IPC分类号： H04W24/00

CPC分类号： H04W24/10 ,  H04W84/12

摘要： Embodiments for improving multi-user downlink reception quality in WLANS are disclosed. In one embodiment, a method includes receiving, at a station, at least one multi-user sounding packet from an access point. The method also includes determining a sum of desired signal strengths from the at least one received sounding packet. The method also includes determining a sum of interference signal strengths from the at least one received sounding packet. The method also includes generating link quality metrics based on a ratio of the sum of desired signal strengths to the sum of interference signal strengths.

摘要翻译： 公开了用于改善WLANS中的多用户下行接收质量的实施例。 在一个实施例中，一种方法包括在站处从接入点接收至少一个多用户探测分组。 该方法还包括从至少一个接收到的探测分组确定期望的信号强度之和。 该方法还包括确定来自至少一个接收的探测分组的干扰信号强度之和。 该方法还包括基于期望信号强度之和与干扰信号强度之和的比率来产生链路质量度量。

公开(公告)号：US20120093025A1

公开(公告)日：2012-04-19

申请号：US13087151

申请日：2011-04-14

申请人： Thomas E. PARE, JR. ,  Kiran ULN ,  Peter LOC

发明人： Thomas E. PARE, JR. ,  Kiran ULN ,  Peter LOC

IPC分类号： H04L12/26

CPC分类号： H04L27/0012 ,  H04L1/0091 ,  H04L27/2613

摘要： It is therefore an object of the present invention to provide a method for detecting different packet type. The method comprises, determining whether the rate of a received packet corresponds to a predetermined rate, derotating the bits of a symbol in the received packet, obtaining an energy different of the symbol at different axes, and determining the type of the received packet according to the energy difference.

摘要翻译： 因此，本发明的目的是提供一种用于检测不同分组类型的方法。 该方法包括：确定接收到的分组的速率是否对应于预定速率，解除接收分组中的符号的比特，获得不同轴上的符号的能量，并根据 能量差异。

公开(公告)号：US20110274003A1

公开(公告)日：2011-11-10

申请号：US13041177

申请日：2011-03-04

申请人： Thomas E. PARE, JR. ,  Cheng-Hsuan WU ,  Yung-Szu TU ,  Kiran ULN ,  Ravishankar H. MAHADEVAPPA

发明人： Thomas E. PARE, JR. ,  Cheng-Hsuan WU ,  Yung-Szu TU ,  Kiran ULN ,  Ravishankar H. MAHADEVAPPA

IPC分类号： H04L12/26

CPC分类号： H04B7/0456 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0626 ,  H04W4/08 ,  H04W4/21 ,  H04W8/186 ,  H04W24/00 ,  H04W24/10

摘要： A method and system is disclosed for grouping the multiple stations connected to an access point (AP). The system and method comprise sending a sounding packet to a plurality of stations, wherein the stations may be all or part of the stations that are located within the range of the AP. The stations that receive the sounding packets respond to the AP, and the AP determines the channel state information (CSI) from the responses. According to the CSI, the AP divides the multiple stations into several groups. According to an embodiment of the present invention, a confirmation step is performed to each group of stations, respectively. The AP sends a second sounding packet to each group of stations, and verifies the CSI between each station group by group. Therefore, the method and system provides for monitoring the validation of each group by periodically sending sounding packets to each group.

公开(公告)号：US20140064390A1

公开(公告)日：2014-03-06

申请号：US13599970

申请日：2012-08-30

申请人： Kiran ULN ,  Gary ANWYL ,  Thomas E. PARE, JR.

发明人： Kiran ULN ,  Gary ANWYL ,  Thomas E. PARE, JR.

IPC分类号： H04B7/04

CPC分类号： H04W52/24 ,  H04B7/0408 ,  H04B7/0426 ,  H04B7/0434 ,  H04B7/0617 ,  H04L5/006 ,  H04W52/241 ,  H04W52/346 ,  H04W52/42

摘要： A method, system, and computer program product for beamforming in a wireless communication system is disclosed. The method, system, and computer program product comprise a plurality of transmit antennas for a transmitter and at least one receive antenna for a receiver. The method, system, and computer program product comprise: initiating beamforming on a communication channel between the plurality of transmit antennas and the at least one receive antenna. The communication channel includes two data streams. A received signal to noise ratio (SNR) on one of the two data streams is weaker than a received SNR of the other data stream. The method, system, and computer program product include reallocating the transmit power between the stronger stream and the weaker stream to provide improved channel performance.

摘要翻译： 公开了一种在无线通信系统中用于波束成形的方法，系统和计算机程序产品。 方法，系统和计算机程序产品包括用于发射机的多个发射天线和用于接收机的至少一个接收天线。 所述方法，系统和计算机程序产品包括：在所述多个发射天线与所述至少一个接收天线之间的通信信道上发起波束成形。 通信信道包括两个数据流。 在两个数据流之一上的接收信噪比（SNR）比其他数据流的接收SNR更弱。 方法，系统和计算机程序产品包括在较强流和较弱流之间重新分配发射功率，以提供改善的信道性能。

公开(公告)号：US20130251074A1

公开(公告)日：2013-09-26

申请号：US13429231

申请日：2012-03-23

申请人： Kiran ULN

发明人： Kiran ULN

IPC分类号： H04L27/06

CPC分类号： H04L27/38 ,  H04B7/086 ,  H04L1/0054 ,  H04L25/0258 ,  H04L25/065 ,  H04L27/2601 ,  H04L27/36

摘要： Embodiments for demodulating data streams are disclosed. In one embodiment, a method includes receiving, at a multiple-input device, a plurality of data streams. The method also includes determining a degree of correlation among the plurality of data streams. The method also includes selecting a demodulator based on the degree of correlation.

摘要翻译： 公开了解调数据流的实施例。 在一个实施例中，一种方法包括在多输入设备处接收多个数据流。 该方法还包括确定多个数据流之间的相关程度。 该方法还包括基于相关度选择解调器。

公开(公告)号：US20120009961A1

公开(公告)日：2012-01-12

申请号：US12832887

申请日：2010-07-08

申请人： Kiran ULN ,  Thomas E. PARE, JR. ,  Gary ANWYL ,  Yung-Szu TU ,  Chun-Hsien WEN ,  Lihua WENG ,  Henry LIN

发明人： Kiran ULN ,  Thomas E. PARE, JR. ,  Gary ANWYL ,  Yung-Szu TU ,  Chun-Hsien WEN ,  Lihua WENG ,  Henry LIN

IPC分类号： H04W52/04 ,  H04W72/04

CPC分类号： H04L25/03343 ,  H04B7/0617 ,  H04L27/2626 ,  H04L27/2647 ,  H04W16/24 ,  H04W52/42

摘要： Varying embodiments of the present invention describes a method and apparatus for beamforming in a wireless communication system. A first embodiment is a method for beamforming in a wireless communication system, the system comprising a transmitter and a receiver. The method comprises initiating beamforming on a communication channel between the transmitter and the receiver wherein the communication channel comprises at least two transmit chains, controlling the beamforming by mapping the data stream(s) to the at least two transmit chains and controlling the scaling of the at least two transmit chains within a transmit power constraint.

摘要翻译： 本发明的不同实施例描述了一种用于无线通信系统中波束成形的方法和装置。 第一实施例是用于在无线通信系统中波束成形的方法，该系统包括发射机和接收机。 该方法包括在发射机和接收机之间的通信信道上启动波束成形，其中通信信道包括至少两个发射链，通过将数据流映射到至少两个发射链来控制波束形成，并且控制 在发射功率约束内的至少两个发射链。

公开(公告)号：US20120002652A1

公开(公告)日：2012-01-05

申请号：US13175746

申请日：2011-07-01

申请人： Kiran ULN ,  Thomas E. PARE, JR. ,  Ravishankar H. MAHADEVAPPA

发明人： Kiran ULN ,  Thomas E. PARE, JR. ,  Ravishankar H. MAHADEVAPPA

IPC分类号： H04W84/02

CPC分类号： H04W28/065 ,  H04L1/0069

摘要： A method and system utilized in a wireless communication system transmitting and receiving a multi-user packet is disclosed. The communication system includes a transmitter and a plurality of users in communication therewith. The method and system comprise determining a lowest coding scheme for transmitting the packet; and deriving a coding rate for the efficient transmission of the packet from a standard coding rate by de-puncturing bits in the packet. A system and method in accordance with the present invention provides for an efficient utilization of packet length, and improves the reliability by improving SNR, by lowering the MCS, un-puncturing, and/or repetition. More efficient packed data rates are also provided and both Tx and Rx compute parameters independently.

摘要翻译： 公开了一种在发送和接收多用户分组的无线通信系统中使用的方法和系统。 通信系统包括与其通信的发射机和多个用户。 该方法和系统包括确定用于发送分组的最低编码方案; 并且通过对分组中的比特进行去穿孔来导出用于从标准编码率有效传输分组的编码率。 根据本发明的系统和方法提供了对分组长度的有效利用，并且通过降低MCS，非穿孔和/或重复来提高SNR，从而提高了可靠性。 还提供了更高效的打包数据速率，并且Tx和Rx独立地计算参数。