公开(公告)号：US08681644B2

公开(公告)日：2014-03-25

申请号：US12784092

申请日：2010-05-20

申请人： Shahab Sanayei ,  Mazin Al-Shalash

发明人： Shahab Sanayei ,  Mazin Al-Shalash

IPC分类号： H04L12/26

CPC分类号： H04L43/0876 ,  H04B7/024 ,  H04B7/0634 ,  H04B7/0697

摘要： A system and method for spatial multiplexing for coordinated multi-point transmission are provided. A method for communications device operations includes receiving transmissions from at least two access points, measuring channels between the communications device and each of the at least two access points based on the received transmissions, computing beamforming weights based on the measured channels, and transmitting the beamforming weights to the at least two access points. The computing is based on attempting to maximize a capacity of a communications system containing the communications device and the at least two access points with the beamforming weights, and the beamforming weights are used at the at least two access points to beamform transmissions to the communications device using coordinated multi-point transmission.

摘要翻译： 提供了一种用于协调多点传输的空间复用的系统和方法。 一种用于通信设备操作的方法包括从至少两个接入点接收传输，基于所接收的传输来测量通信设备与至少两个接入点中的每一个之间的信道，基于测量的信道来计算波束成形权重，以及发送波束成形 至少两个接入点的权重。 该计算基于尝试最大化包含通信设备的通信系统的容量和具有波束成形权重的至少两个接入点，并且在至少两个接入点处使用波束成形权重来波束形成到通信设备的传输 采用协调多点传输。

公开(公告)号：US20110286341A1

公开(公告)日：2011-11-24

申请号：US12784092

申请日：2010-05-20

申请人： Shahab Sanayei ,  Mazin Al-Shalash

发明人： Shahab Sanayei ,  Mazin Al-Shalash

IPC分类号： H04L12/26

CPC分类号： H04L43/0876 ,  H04B7/024 ,  H04B7/0634 ,  H04B7/0697

摘要： A system and method for spatial multiplexing for coordinated multi-point transmission are provided. A method for communications device operations includes receiving transmissions from at least two access points, measuring channels between the communications device and each of the at least two access points based on the received transmissions, computing beamforming weights based on the measured channels, and transmitting the beamforming weights to the at least two access points. The computing is based on attempting to maximize a capacity of a communications system containing the communications device and the at least two access points with the beamforming weights, and the beamforming weights are used at the at least two access points to beamform transmissions to the communications device using coordinated multi-point transmission.

摘要翻译： 提供了一种用于协调多点传输的空间复用的系统和方法。 一种用于通信设备操作的方法包括从至少两个接入点接收传输，基于所接收的传输来测量通信设备与至少两个接入点中的每一个之间的信道，基于测量的信道来计算波束成形权重，以及发送波束成形 至少两个接入点的权重。 该计算基于尝试最大化包含通信设备的通信系统的容量和具有波束成形权重的至少两个接入点，并且在至少两个接入点处使用波束成形权重来波束形成到通信设备的传输 采用协调多点传输。

公开(公告)号：US20110134978A1

公开(公告)日：2011-06-09

申请号：US12633418

申请日：2009-12-08

申请人： Chun Kin Au-Yeung ,  Shahab Sanayei

发明人： Chun Kin Au-Yeung ,  Shahab Sanayei

IPC分类号： H04B17/00

CPC分类号： H04L1/0026 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/20

摘要： A system and method for non-uniform bit allocation in the quantization of channel state vectors is provided. A method for communications node operation includes receiving a bit-allocation profile for use in quantizing channel state information, measuring a communications channel between the communications node and a controller, generating channel state information based on the measurement, computing a bit representation of the channel state information, transmitting the bit representation to the controller, and receiving a transmission from the controller. The computing makes use of quasi-tail-biting trellis decoding, and the computing is based on the bit-allocation policy. The transmission makes use of the channel state information transmitted by the communications node.

摘要翻译： 提供了一种在信道状态向量的量化中用于非均匀比特分配的系统和方法。 一种用于通信节点操作的方法包括接收用于量化信道状态信息的位分配简档，测量通信节点和控制器之间的通信信道，基于测量产生信道状态信息，计算信道状态的位表示 信息，将比特表示发送到控制器，以及从控制器接收传输。 计算利用准尾部网格解码，计算基于比特分配策略。 传输利用由通信节点发送的信道状态信息。

公开(公告)号：US20110115675A1

公开(公告)日：2011-05-19

申请号：US12620668

申请日：2009-11-18

申请人： Shahab Sanayei

发明人： Shahab Sanayei

IPC分类号： H01Q3/00

CPC分类号： H01Q1/246 ,  H04B7/0617 ,  H04B7/0634

摘要： A system and method for coordinated spatial multiplexing using second order statistical information is provided. A method for controller operations includes receiving second order statistics from a plurality of communications devices, computing a beamforming vector for each communications device in the plurality of communications devices, selecting a subset of communications devices from the plurality of communications devices to receive transmissions, and transmitting transmissions to the subset of selected communications devices. The beamforming vector for a communications device is based on the second order statistics provided by the communications device, and the transmitting uses the computed beamforming vector for each selected communications device to transmit the transmissions to the selected communications device.

摘要翻译： 提供了一种使用二阶统计信息协调空间复用的系统和方法。 一种用于控制器操作的方法包括从多个通信设备接收二阶统计信息，为所述多个通信设备中的每个通信设备计算波束成形向量，从所述多个通信设备中选择通信设备的子集以接收传输，以及发送 传输到所选择的通信设备的子集。 用于通信设备的波束成形向量基于由通信设备提供的二阶统计信息，并且发射使用所计算的用于每个所选通信设备的波束成形向量来向所选择的通信设备发送传输。

公开(公告)号：US20100246494A1

公开(公告)日：2010-09-30

申请号：US12731991

申请日：2010-03-25

申请人： Shahab Sanayei

发明人： Shahab Sanayei

IPC分类号： H04W40/00

CPC分类号： H04B7/10 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0684 ,  H04L25/0224 ,  H04L25/0242 ,  H04L27/2601 ,  H04W24/00

摘要： A system and method for communications using spatial multiplexing with incomplete channel information are provided. A method for wireless communications includes receiving, at a controller, a reference signal transmitted by a communications device, computing channel statistics based on the received reference signal, computing a first beamforming vector and a second beamforming vector, and transmitting information to the communications device. The reference signal being transmitted using a subset of antennas used for data reception at the communications device, and the controller and the communications device utilize cross-polarized antennas. The computing being based on the channel statistics, the transmitting uses the first beamforming vector and the second beamforming vector, the first beamforming vector precodes information for a first antenna at the communications device, and the second beamforming vector precodes information for a second antenna at the communications device.

摘要翻译： 提供了使用具有不完整信道信息的空间复用的通信的系统和方法。 一种用于无线通信的方法包括在控制器处接收由通信设备发送的参考信号，基于所接收的参考信号计算信道统计，计算第一波束成形向量和第二波束成形向量，以及向所述通信设备发送信息。 使用用于在通信设备处的数据接收的天线子集发送参考信号，并且控制器和通信设备利用交叉极化天线。 该计算基于信道统计，发送使用第一波束成形向量和第二波束成形向量，第一波束成形向量预先在通信设备处的第一天线的信息，以及第二波束成形向量在第 通信设备。

公开(公告)号：US08432988B2

公开(公告)日：2013-04-30

申请号：US12497118

申请日：2009-07-02

申请人： Shahab Sanayei

发明人： Shahab Sanayei

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L25/03343 ,  H04L2025/03808

摘要： A system and method for quantization of channel state information is provided. A method for operating in a wireless communications system includes estimating a communications channel between a controller and a mobile device, thereby producing a channel estimate, parameterizing the channel estimate with principal angle vectors Θ and Φ, quantizing the principal angle vectors, thereby producing quantized values, and transmitting the quantized values to the controller.

摘要翻译： 提供了一种用于信道状态信息量化的系统和方法。 用于在无线通信系统中操作的方法包括估计控制器和移动设备之间的通信信道，由此产生信道估计，对主角向量Theta和Phi参数化信道估计，量化主角向量，由此产生量化值 ，并将量化值发送到控制器。

公开(公告)号：US08660060B2

公开(公告)日：2014-02-25

申请号：US12731991

申请日：2010-03-25

申请人： Shahab Sanayei

发明人： Shahab Sanayei

IPC分类号： H04B7/212

CPC分类号： H04B7/10 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0684 ,  H04L25/0224 ,  H04L25/0242 ,  H04L27/2601 ,  H04W24/00

摘要： A system and method for communications using spatial multiplexing with incomplete channel information are provided. A method for wireless communications includes receiving, at a controller, a reference signal transmitted by a communications device, computing channel statistics based on the received reference signal, computing a first beamforming vector and a second beamforming vector, and transmitting information to the communications device. The reference signal being transmitted using a subset of antennas used for data reception at the communications device, and the controller and the communications device utilize cross-polarized antennas. The computing being based on the channel statistics, the transmitting uses the first beamforming vector and the second beamforming vector, the first beamforming vector precodes information for a first antenna at the communications device, and the second beamforming vector precodes information for a second antenna at the communications device.

摘要翻译： 提供了使用具有不完整信道信息的空间复用的通信的系统和方法。 一种用于无线通信的方法包括在控制器处接收由通信设备发送的参考信号，基于所接收的参考信号计算信道统计，计算第一波束成形向量和第二波束成形向量，以及向所述通信设备发送信息。 使用用于在通信设备处的数据接收的天线子集发送参考信号，并且控制器和通信设备利用交叉极化天线。 该计算基于信道统计，发送使用第一波束成形向量和第二波束成形向量，第一波束成形向量预先在通信设备处的第一天线的信息，以及第二波束成形向量在第 通信设备。

公开(公告)号：US08503559B2

公开(公告)日：2013-08-06

申请号：US13609751

申请日：2012-09-11

申请人： Chun Kin Au-Yeung ,  Shahab Sanayei

发明人： Chun Kin Au-Yeung ,  Shahab Sanayei

IPC分类号： H04L5/12 ,  H04L23/02

CPC分类号： H04L1/0026 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/20

摘要： A system and method for non-uniform bit allocation in the quantization of channel state vectors is provided. A method for communications node operation includes receiving a bit-allocation profile for use in quantizing channel state information, measuring a communications channel between the communications node and a controller, generating channel state information based on the measurement, computing a bit representation of the channel state information, transmitting the bit representation to the controller, and receiving a transmission from the controller. The computing makes use of quasi-tail-biting trellis decoding, and the computing is based on the bit-allocation policy. The transmission makes use of the channel state information transmitted by the communications node.

摘要翻译： 提供了一种在信道状态向量的量化中用于非均匀比特分配的系统和方法。 一种用于通信节点操作的方法包括接收用于量化信道状态信息的位分配简档，测量通信节点和控制器之间的通信信道，基于测量产生信道状态信息，计算信道状态的位表示 信息，将比特表示发送到控制器，以及从控制器接收传输。 计算利用准尾部网格解码，计算基于比特分配策略。 传输利用由通信节点发送的信道状态信息。

公开(公告)号：US20130003808A1

公开(公告)日：2013-01-03

申请号：US13609751

申请日：2012-09-11

申请人： Chun Kin Au-Yeung ,  Shahab Sanayei

发明人： Chun Kin Au-Yeung ,  Shahab Sanayei

IPC分类号： H04L23/02 ,  H04B17/00

CPC分类号： H04L1/0026 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/20

摘要： A system and method for non-uniform bit allocation in the quantization of channel state vectors is provided. A method for communications node operation includes receiving a bit-allocation profile for use in quantizing channel state information, measuring a communications channel between the communications node and a controller, generating channel state information based on the measurement, computing a bit representation of the channel state information, transmitting the bit representation to the controller, and receiving a transmission from the controller. The computing makes use of quasi-tail-biting trellis decoding, and the computing is based on the bit-allocation policy. The transmission makes use of the channel state information transmitted by the communications node.

摘要翻译： 提供了一种在信道状态向量的量化中用于非均匀比特分配的系统和方法。 一种用于通信节点操作的方法包括接收用于量化信道状态信息的位分配简档，测量通信节点和控制器之间的通信信道，基于测量产生信道状态信息，计算信道状态的位表示 信息，将比特表示发送到控制器，以及从控制器接收传输。 计算利用准尾部网格解码，计算基于比特分配策略。 传输利用由通信节点发送的信道状态信息。

公开(公告)号：US08041313B2

公开(公告)日：2011-10-18

申请号：US12412624

申请日：2009-03-27

申请人： Cornelius Van Rensburg ,  Shahab Sanayei ,  Young Hoon Kwon ,  Anthony C. K. Soong

发明人： Cornelius Van Rensburg ,  Shahab Sanayei ,  Young Hoon Kwon ,  Anthony C. K. Soong

IPC分类号： H04B1/38

CPC分类号： H04B7/0632 ,  H01Q3/40 ,  H01Q25/00 ,  H04B7/0602 ,  H04B7/0669 ,  H04B7/0695 ,  H04B7/10 ,  H04W16/28 ,  H04W88/08

摘要： A system and method for wirelessly communicating using beamswitching is provided. A communications system includes a high-power signal cable coupled to a signal amplifier, a radio frequency circuit coupled to the high-power signal cable, and a control unit coupled to the radio frequency circuit. The high-power signal cable conveys a transmission signal produced by the signal amplifier. The radio frequency circuit includes a plurality of antennas, a passive network having a plurality of output ports and a plurality of input ports, each output port coupled to an antenna of the plurality of antennas, and a plurality of switches coupled to the high-power signal cable, each switch coupled to an input port in the plurality of input ports. The control unit produces the control signal based on a specified coupling of the high-power signal cable to the passive network.

摘要翻译： 提供了一种使用光束切换进行无线通信的系统和方法。 通信系统包括耦合到信号放大器的高功率信号电缆，耦合到大功率信号电缆的射频电路以及耦合到射频电路的控制单元。 高功率信号电缆传输由信号放大器产生的传输信号。 射频电路包括多个天线，具有多个输出端口和多个输入端口的无源网络，每个输出端口耦合到多个天线中的天线，以及耦合到大功率的多个开关 信号电缆，每个开关耦合到多个输入端口中的输入端口。 控制单元根据大功率信号电缆与被动网络的指定耦合产生控制信号。