公开(公告)号：US08514815B2

公开(公告)日：2013-08-20

申请号：US12088285

申请日：2005-09-30

Applicant: Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

Inventor： Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

IPC: H04W4/00

CPC classification number: H04B7/0691 ,  H04B7/024 ,  H04B7/0695 ,  H04B7/0851 ,  H04B7/0874 ,  H04B7/088

Abstract: A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets, and a subset of antennas is selected according to the channel matrix.

Abstract translation: 计算机实现的方法选择包括多个站的多输入多输出无线局域网中的天线，并且每个站包括一组天线。 在站中接收到多个连续发送的探测包。 每个探测包对应于该组天线的不同子集。 从多个连续发送的探测分组估计信道矩阵，并根据信道矩阵选择天线子集。

公开(公告)号：US08374096B2

公开(公告)日：2013-02-12

申请号：US12094441

申请日：2005-11-21

Applicant: Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

Inventor： Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

IPC: H04W4/00

CPC classification number: H04B7/0417 ,  H04B7/0691 ,  H04B7/0874 ,  H04L1/0025 ,  H04L5/0023

Abstract: A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets. A frame including a high throughput (HT) control field is sent to initiate a selecting of antennas, and a subset of antennas is selected according to the channel matrix.

Abstract translation: 计算机实现的方法选择包括多个站的多输入多输出无线局域网中的天线，并且每个站包括一组天线。 在站中接收到多个连续发送的探测包。 每个探测包对应于该组天线的不同子集。 从多个连续发送的探测包估计信道矩阵。 发送包括高吞吐量（HT）控制字段的帧以发起天线的选择，并且根据信道矩阵选择天线子集。

公开(公告)号：US07917107B2

公开(公告)日：2011-03-29

申请号：US11387252

申请日：2006-03-23

Applicant: Daqing Gu ,  Andreas F. Molisch ,  Jinyun Zhang ,  Hongyuan Zhang ,  Dong Wang

Inventor： Daqing Gu ,  Andreas F. Molisch ,  Jinyun Zhang ,  Hongyuan Zhang ,  Dong Wang

IPC: H04B7/08

CPC classification number: H04B7/0874 ,  H04B7/061 ,  H04B7/0691 ,  H04L25/0242

Abstract: A method for selecting antennas in a multiple-input, multiple-output wireless communications network that includes multiple stations is presented. Each station includes a set of transmit RF chains and a set of receive RF chains, and each RF chain is connectable to a set of antennas. A first station transmits a training frame for each possible subset of the set of antennas, and the set of transmit RF chains are connected to the subset of antennas according to a connection mapping rule while transmitting each training frame. A subchannel matrix is estimated in a second station for each frame. The subchannel matrices are combined to obtain a complete channel matrix. A particular subset of the antennas is selected according to the complete channel matrix. The set of transmit RF chains is connected to the selected particular subset of antennas to transmit data from the first station to the second station.

Abstract translation: 提出了一种在包含多个站的多输入，多输出无线通信网络中选择天线的方法。 每个站包括一组发射RF链和一组接收RF链，并且每个RF链可连接到一组天线。 第一台站发送针对该组天线的每个可能子集的训练帧，并且该组发射RF链根据连接映射规则连接到天线子集，同时传输每个训练帧。 在每个帧的第二站中估计子信道矩阵。 子信道矩阵被组合以获得完整的信道矩阵。 根据完整的信道矩阵来选择天线的特定子集。 发射RF链的集合被连接到所选择的特定天线子集，以将数据从第一站传送到第二站。

公开(公告)号：US20100176929A1

公开(公告)日：2010-07-15

申请号：US11993054

申请日：2005-06-20

Applicant: Mustafa Ozdemir ,  Daqing Gu ,  Jinyun Zhang

Inventor： Mustafa Ozdemir ,  Daqing Gu ,  Jinyun Zhang

IPC: H04Q5/22

CPC classification number: H04W74/06

Abstract: A method, system, and computer program product for wireless communication between an initiator station and a responder station. The method includes assigning a transmit window having a predefined window duration to the initiator; sending a request-to send signal (S41) from the initiator to the responder; sending a clear-to-send (S42) signal and a request for reverse transmission from the responder to the initiator; sending forward data and a reverse transmission permission indicator from the initiator to the responder, and sending reverse data from the responder to the initiator within the transmit window assigned to the initiator.

Abstract translation: 一种用于发起者站和应答者站之间的无线通信的方法，系统和计算机程序产品。 该方法包括向发起者分配具有预定窗口持续时间的发送窗口; 从所述发起者向所述应答者发送请求发送信号（S41）; 发送清除发送（S42）信号和从响应者到发起者的反向发送请求; 从发起者向应答者发送前向数据和反向传输许可指示符，并且将响应者的反向数据发送到分配给发起者的发送窗口内的发起方。

公开(公告)号：US20090086690A1

公开(公告)日：2009-04-02

申请号：US12094441

申请日：2005-11-21

Applicant: Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

Inventor： Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

IPC: H04W84/12

CPC classification number: H04B7/0417 ,  H04B7/0691 ,  H04B7/0874 ,  H04L1/0025 ,  H04L5/0023

Abstract: A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets. A frame including a high throughput (HT) control field is sent to initiate a selecting of antennas, and a subset of antennas is selected according to the channel matrix.

Abstract translation: 计算机实现的方法选择包括多个站的多输入多输出无线局域网中的天线，并且每个站包括一组天线。 在站中接收到多个连续发送的探测包。 每个探测包对应于该组天线的不同子集。 从多个连续发送的探测包估计信道矩阵。 发送包括高吞吐量（HT）控制字段的帧以发起天线的选择，并且根据信道矩阵选择天线子集。

公开(公告)号：US20070224943A1

公开(公告)日：2007-09-27

申请号：US11387252

申请日：2006-03-23

Applicant: Daqing Gu ,  Andreas Molisch ,  Jinyun Zhang ,  Hongyuan Zhang ,  Dong Wang

Inventor： Daqing Gu ,  Andreas Molisch ,  Jinyun Zhang ,  Hongyuan Zhang ,  Dong Wang

IPC: H04B1/02 ,  H04B7/00 ,  H04M1/00

CPC classification number: H04B7/0874 ,  H04B7/061 ,  H04B7/0691 ,  H04L25/0242

Abstract: A method for selecting antennas in a multiple-input, multiple-output wireless communications network that includes multiple stations is presented. Each station includes a set of transmit RF chains and a set of receive RF chains, and each RF chain is connectable to a set of antennas. A first station transmits a training frame for each possible subset of the set of antennas, and the set of transmit RF chains are connected to the subset of antennas according to a connection mapping rule while transmitting each training frame. A subchannel matrix is estimated in a second station for each frame. The subchannel matrices are combined to obtain a complete channel matrix. A particular subset of the antennas is selected according to the complete channel matrix. The set of transmit RF chains is connected to the selected particular subset of antennas to transmit data from the first station to the second station.

Abstract translation: 提出了一种在包含多个站的多输入，多输出无线通信网络中选择天线的方法。 每个站包括一组发射RF链和一组接收RF链，并且每个RF链可连接到一组天线。 第一台站发送针对该组天线的每个可能子集的训练帧，并且该组发射RF链根据连接映射规则连接到天线子集，同时传输每个训练帧。 在每个帧的第二站中估计子信道矩阵。 子信道矩阵被组合以获得完整的信道矩阵。 根据完整的信道矩阵来选择天线的特定子集。 发射RF链的集合被连接到所选择的特定天线子集，以将数据从第一站传送到第二站。

公开(公告)号：US20060282742A1

公开(公告)日：2006-12-14

申请号：US11134545

申请日：2005-05-20

Applicant: Juntan Zhang ,  Daqing Gu ,  Jinyun Zhang

Inventor： Juntan Zhang ,  Daqing Gu ,  Jinyun Zhang

IPC: H03M13/00

CPC classification number: H03M13/658 ,  H03M13/1117 ,  H03M13/112 ,  H03M13/1194 ,  H03M13/1197 ,  H03M13/6583

Abstract: A method for decoding error-correcting codes normalizes messages generated by a bit node processor, and normalizes messages generated by the check node processor.

公开(公告)号：US20050052995A1

公开(公告)日：2005-03-10

申请号：US10654841

申请日：2003-09-04

Applicant: Daqing Gu ,  Jinyun Zhang

Inventor： Daqing Gu ,  Jinyun Zhang

IPC: H04B7/26 ,  H04L12/28 ,  H04L12/56 ,  H04W24/00 ,  H04W72/08 ,  H04W74/00 ,  H04W84/12 ,  H04W84/18 ,  H04L12/26

CPC classification number: H04L47/805 ,  H04L47/11 ,  H04L47/29 ,  H04L47/70 ,  H04L47/745 ,  H04L47/822 ,  H04L47/824 ,  H04W24/00 ,  H04W24/10 ,  H04W28/02 ,  H04W72/08 ,  H04W84/12 ,  H04W84/18

Abstract: A method for distributed admission control in communication channels of a network including a plurality of nodes measures, at each node, a traffic condition of a communication channel during successive time intervals having a predetermined length. At the particular node, the measured traffic condition for a last time interval is compared to a threshold. The state of the node is changed depending on the comparing.

Abstract translation: 一种包括多个节点的网络的通信信道中的分布式接纳控制的方法，在每个节点，在具有预定长度的连续时间间隔期间测量通信信道的业务状况。 在特定节点，将最后一个时间间隔的测量交通状况与阈值进行比较。 节点的状态根据比较而改变。

公开(公告)号：US06792049B1

公开(公告)日：2004-09-14

申请号：US09595252

申请日：2000-06-15

Applicant: Jay Bao ,  Daqing Gu

Inventor： Jay Bao ,  Daqing Gu

IPC: H04B1500

CPC classification number: H04L25/03343 ,  H04L5/1469 ,  H04L2025/03414 ,  H04L2025/03808

Abstract: A digital transceiver system includes a downlink channel and an uplink channel. In the system, a transmitter transmits signals on the downlink channel and receives signals on the uplink channel. The transmitter includes a pre-coder having a plurality of filters. Each filter has a corresponding filter coefficient. The transmitter also includes a filter coefficient updater coupled to the pre-coder. A receiver of the system receives signals on the downlink channel and transmits signals on the uplink channel. The receiver includes linear equalizers having a plurality of taps. Each tap has a corresponding tap coefficient. The coefficient updater is configured to dynamically update the filter coefficients according to the tap coefficients which are indicative of the frequency response of the receiver.

Abstract translation: 数字收发机系统包括下行链路信道和上行链路信道。 在系统中，发射机在下行链路信道上发送信号，并在上行链路信道上接收信号。 发射机包括具有多个滤波器的预编码器。 每个滤波器具有相应的滤波器系数。 发射机还包括耦合到预编码器的滤波器系数更新器。 系统的接收机在下行链路信道上接收信号，并在上行链路信道上发送信号。 接收机包括具有多个抽头的线性均衡器。 每个水龙头具有相应的抽头系数。 系数更新器被配置为根据指示接收机的频率响应的抽头系数动态地更新滤波器系数。

公开(公告)号：US07486720B2

公开(公告)日：2009-02-03

申请号：US11127006

申请日：2005-05-11

Applicant: Andreas F. Molisch ,  Jianxuan Du ,  Daqing Gu

Inventor： Andreas F. Molisch ,  Jianxuan Du ,  Daqing Gu

IPC: H04B1/38 ,  H04B7/02 ,  H04L27/00

CPC classification number: H04B7/0691 ,  H04B7/02 ,  H04B7/0874

Abstract: A method transmits training frames in a MIMO system. A long sequence of training frames is transmitted from a station B to a station A via a channel of the MIMO system, in which the station A includes NA antennas and NA—SS RF chains and the station B includes NB antennas and NB—SS RF chains, and a number of frames in the long sequence of training frames is at least equal to where is a lower bound operator. A short sequence of training frames is transmitted from the station A to the station B via the channel in response to receiving the long sequence of training frames. A number of frames in the short training sequence is at least equal to

Abstract translation: 一种方法在MIMO系统中发送训练帧。 训练帧的长序列经由MIMO系统的信道从站B发送到站A，其中站A包括NA天线和NA _{SS-射频链，并且站B包括 NB天线和NB SS RF链，并且训练帧的长序列中的多个帧至少等于下界运算符的位置。 响应于接收到长的训练帧序列，经由信道将短序列的训练帧从站A发送到站B. 短训练序列中的多个帧至少等于}