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1. 发明申请

US20120076498A1 HYBRID ANALOG-DIGITAL PHASED MIMO TRANSCEIVER SYSTEM 有权
标题翻译：混合模拟数字定时MIMO收发系统
公开(公告)号：US20120076498A1
公开(公告)日：2012-03-29
申请号：US12891887
申请日：2010-09-28
申请人： Akbar M. Sayeed , Nader Behdad
发明人： Akbar M. Sayeed , Nader Behdad
IPC分类号： H04B10/00 , H04K1/10
CPC分类号： H01Q15/148 , H01Q15/0006 , H01Q15/02 , H01Q19/06 , H01Q19/17
摘要： A transmitter supporting multiple-input, multiple-output communications is provided. The transmitter includes a signal processor, a plurality of feed elements, and an aperture. The signal processor is configured to simultaneously receive a plurality of digital data streams and to transform the received plurality of digital data streams into a plurality of analog signals. The number of the plurality of digital data streams is selected for transmission to a single receive antenna based on a determined transmission environment. The plurality of feed elements are configured to receive the plurality of analog signals, and in response, to radiate a plurality of radio waves toward the aperture. The aperture is configured to receive the radiated plurality of radio waves, and in response, to radiate a second plurality of radio waves toward the single receive antenna.
摘要翻译：提供支持多输入，多输出通信的发射机。发射机包括信号处理器，多个馈送元件和孔径。信号处理器被配置为同时接收多个数字数据流并将所接收的多个数字数据流变换为多个模拟信号。基于确定的传输环境，选择多个数字数据流的数量以传输到单个接收天线。多个馈送元件被配置为接收多个模拟信号，并且作为响应，朝向孔径辐射多个无线电波。孔被配置为接收辐射的多个无线电波，并且作为响应，朝向单个接收天线辐射第二多个无线电波。

2. 发明授权

US08000730B2 Method and system for improving performance in a sparse multi-path environment using reconfigurable arrays 有权
标题翻译：使用可重构阵列改善稀疏多径环境中的性能的方法和系统
公开(公告)号：US08000730B2
公开(公告)日：2011-08-16
申请号：US11482530
申请日：2006-07-07
申请人： Akbar M. Sayeed , Vasanthan Raghavan
发明人： Akbar M. Sayeed , Vasanthan Raghavan
IPC分类号： H04B15/00 , H04M1/00 , H04B1/06
CPC分类号： H01Q3/2605
摘要： A wireless communication system supporting improved performance in a sparse multi-path environment is provided that uses spatially reconfigurable arrays. The system includes a first device and a second device. The first device includes a plurality of antennas and a processor operably coupled to the plurality of antennas. The plurality of antennas are adapted to transmit a first signal toward a the second device and to receive a second signal from the second device. The processor is configured to determine an antenna spacing between the plurality of antennas based on an estimated number of spatial degrees of freedom and an estimated operating signal-to-noise ratio. The second device includes a receiver adapted to receive the first signal from the first device, a transmitter adapted to transmit the second signal toward the first device, and a processor. The processor estimates the number of spatial degrees of freedom and the operating signal-to-noise ratio from the received first signal.
摘要翻译：提供了一种在稀疏多路径环境中支持改进性能的无线通信系统，其使用空间可重构阵列。该系统包括第一设备和第二设备。第一设备包括多个天线和可操作地耦合到多个天线的处理器。多个天线适于向第二设备发送第一信号并从第二设备接收第二信号。处理器被配置为基于估计的空间自由度数和估计的操作信噪比来确定多个天线之间的天线间隔。第二设备包括适于从第一设备接收第一信号的接收机，适于向第一设备发送第二信号的发射机和处理器。处理器从接收到的第一信号估计空间自由度的数量和操作信噪比。

3. 发明申请

US20080009321A1 Method and system for improving performance in a sparse multi-path environment using reconfigurable arrays 有权
标题翻译：用于使用可重配置阵列改善稀疏多径环境中的性能的方法和系统
公开(公告)号：US20080009321A1
公开(公告)日：2008-01-10
申请号：US11482530
申请日：2006-07-07
申请人： Akbar M. Sayeed , Vasanthan Raghavan
发明人： Akbar M. Sayeed , Vasanthan Raghavan
IPC分类号： H04M1/00
CPC分类号： H01Q3/2605
摘要： A wireless communication system supporting improved performance in a sparse multi-path environment is provided that uses spatially reconfigurable arrays. The system includes a first device and a second device. The first device includes a plurality of antennas and a processor operably coupled to the plurality of antennas. The plurality of antennas are adapted to transmit a first signal toward a the second device and to receive a second signal from the second device. The processor is configured to determine an antenna spacing between the plurality of antennas based on an estimated number of spatial degrees of freedom and an estimated operating signal-to-noise ratio. The second device includes a receiver adapted to receive the first signal from the first device, a transmitter adapted to transmit the second signal toward the first device, and a processor. The processor estimates the number of spatial degrees of freedom and the operating signal-to-noise ratio from the received first signal.
摘要翻译：提供了一种在稀疏多路径环境中支持改进性能的无线通信系统，其使用空间可重构阵列。该系统包括第一设备和第二设备。第一设备包括多个天线和可操作地耦合到多个天线的处理器。多个天线适于向第二设备发送第一信号并从第二设备接收第二信号。处理器被配置为基于估计的空间自由度数和估计的操作信噪比来确定多个天线之间的天线间隔。第二设备包括适于从第一设备接收第一信号的接收机，适于向第一设备发送第二信号的发射机和处理器。处理器从接收到的第一信号估计空间自由度的数量和操作信噪比。

4. 发明授权

US08811511B2 Hybrid analog-digital phased MIMO transceiver system 有权
标题翻译：混合模拟数字定相MIMO收发系统
公开(公告)号：US08811511B2
公开(公告)日：2014-08-19
申请号：US12891887
申请日：2010-09-28
申请人： Akbar M. Sayeed , Nader Behdad
发明人： Akbar M. Sayeed , Nader Behdad
IPC分类号： H04B7/02
CPC分类号： H01Q15/148 , H01Q15/0006 , H01Q15/02 , H01Q19/06 , H01Q19/17
摘要： A transmitter supporting multiple-input, multiple-output communications is provided. The transmitter includes a signal processor, a plurality of feed elements, and an aperture. The signal processor is configured to simultaneously receive a plurality of digital data streams and to transform the received plurality of digital data streams into a plurality of analog signals. The number of the plurality of digital data streams is selected for transmission to a single receive antenna based on a determined transmission environment. The plurality of feed elements are configured to receive the plurality of analog signals, and in response, to radiate a plurality of radio waves toward the aperture. The aperture is configured to receive the radiated plurality of radio waves, and in response, to radiate a second plurality of radio waves toward the single receive antenna.
摘要翻译：提供支持多输入，多输出通信的发射机。发射机包括信号处理器，多个馈送元件和孔径。信号处理器被配置为同时接收多个数字数据流并将所接收的多个数字数据流变换为多个模拟信号。基于确定的传输环境，选择多个数字数据流的数量以传输到单个接收天线。多个馈送元件被配置为接收多个模拟信号，并且作为响应，朝向孔径辐射多个无线电波。孔被配置为接收辐射的多个无线电波，并且作为响应，朝向单个接收天线辐射第二多个无线电波。

5. 发明授权

US07881671B2 Method and system for retrieving information from wireless sensor nodes 有权
标题翻译：从无线传感器节点检索信息的方法和系统
公开(公告)号：US07881671B2
公开(公告)日：2011-02-01
申请号：US11406070
申请日：2006-04-18
申请人： Akbar M. Sayeed , Thiagarajan Sivanadyan
发明人： Akbar M. Sayeed , Thiagarajan Sivanadyan
IPC分类号： H04B17/00
CPC分类号： H04W28/06
摘要： A system supporting data retrieval from a plurality of wireless sensor nodes is defined. The system includes the plurality of wireless sensor nodes and a data retrieval device. The plurality of wireless sensor nodes include a transceiver receiving a first signal and transmitting a second signal. The second signal includes a sensed datum or an encoded statistic based on the sensed datum identified at the plurality of wireless sensor nodes. The data retrieval device includes a plurality of antennas transmitting the first signal toward the plurality of wireless sensor nodes and receiving the second signal from the plurality of wireless sensor nodes, and a processor coupled to receive the received second signal from the plurality of antennas, the processor defining a virtual receive signal from the received second signal for the plurality of antennas and processing the defined virtual receive signal to determine the identified sensed datum.
摘要翻译：定义了从多个无线传感器节点支持数据检索的系统。该系统包括多个无线传感器节点和数据检索装置。多个无线传感器节点包括收发第一信号并发送第二信号的收发器。第二信号包括基于在多个无线传感器节点处识别的感测数据的感测数据或编码统计量。数据检索装置包括向多个无线传感器节点发送第一信号并从多个无线传感器节点接收第二信号的多个天线，以及耦合以从多个天线接收接收到的第二信号的处理器，处理器根据所接收的多个天线的第二信号定义虚拟接收信号，并处理定义的虚拟接收信号以确定所识别的感测数据。

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