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1. 发明申请

US20060116087A1 Control of power amplifiers in devices using transmit beamforming 有权
公开(公告)号：US20060116087A1
公开(公告)日：2006-06-01
申请号：US11326630
申请日：2006-01-06
申请人： Gary Sugar , Chandra Vaidyanathan , Sifen Luo
发明人： Gary Sugar , Chandra Vaidyanathan , Sifen Luo
IPC分类号： H04B1/04 , H04B1/02
CPC分类号： H04W52/42 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0845 , H04B7/0857 , H04L27/2601
摘要： A transmitter comprises a plurality of transmit antennas for simultaneously transmitting weighted signals according to a channel transfer function. Each antenna has a corresponding amplifier that is bias controlled according to the transmit weights derived for the antenna transmission. A baseband processor produces digital weighted signals for upconversion and amplification by the amplifiers. Each amplifier is accompanied by a bias circuit responsive to the transmit weights. Alternatively, or additionally, corresponding DC/DC converters are used to control the operating voltage of the amplifiers.

2. 发明授权

US06871049B2 Improving the efficiency of power amplifiers in devices using transmit beamforming 有权
标题翻译：提高使用发射波束成形的设备中功率放大器的效率
公开(公告)号：US06871049B2
公开(公告)日：2005-03-22
申请号：US10249063
申请日：2003-03-13
申请人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
发明人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
IPC分类号： H01Q3/28 , H03G3/30 , H04B1/04 , H04B7/005 , H04B7/06 , H04B7/08 , H04L27/26 , H04B1/02 , H04Q11/12
CPC分类号： H04W52/42 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0845 , H04B7/0857 , H04L27/2601
摘要： Systems and methods for optimizing the efficiency of each of a plurality of power amplifiers that amplify a corresponding one of a plurality of radio frequency signals for transmission by a corresponding one of a plurality of antennas. Using transmit beamforming, the power of each amplified signal output by the power amplifiers may not be the same for all the power amplifiers, and may vary with changes in the communication channel between the transmitting device and receiving device. Each of the plurality of power amplifiers is controlled to operate with one or more operating parameters that optimize the efficiency for an output power level of corresponding ones of the radio frequency signals. By adjusting one or more operating parameters of each power amplifier according to changing requirements (e.g., the destination device and channel conditions), the efficiency of each power amplifier can be optimized. Consequently, one or more of the power amplifiers are operated with one or more operating parameters that reflects the output power actually needed for the corresponding radio frequency signal to be transmitted.
摘要翻译：用于优化多个功率放大器中的每一个功率放大器的效率的系统和方法，其放大多个射频信号中的相应一个，用于由多个天线中的相应一个发射。使用发射波束形成，由功率放大器输出的每个放大信号的功率对于所有功率放大器可能不相同，并且可以随着发射装置和接收装置之间的通信信道的变化而变化。多个功率放大器中的每一个被控制为利用一个或多个操作参数进行操作，该操作参数优化对应的一个射频信号的输出功率电平的效率。通过根据变化的要求（例如，目的地设备和信道条件）调整每个功率放大器的一个或多个操作参数，可以优化每个功率放大器的效率。因此，一个或多个功率放大器通过一个或多个反映要发射的相应射频信号实际需要的输出功率的工作参数来操作。

3. 发明授权

US07899414B2 Control of power amplifiers in devices using transmit beamforming 有权
标题翻译：使用发射波束成形的设备中功率放大器的控制
公开(公告)号：US07899414B2
公开(公告)日：2011-03-01
申请号：US12506813
申请日：2009-07-21
申请人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
发明人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
IPC分类号： H04B1/04
CPC分类号： H04W52/42 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0845 , H04B7/0857 , H04L27/2601
摘要： A radio transmitter and method controls efficiency of each of a plurality of power amplifiers that amplify a corresponding one of a plurality of radio frequency signals for a beamforming transmission by a corresponding one of a plurality of antennas. Each of the plurality of power amplifiers is controlled to operate with one or more operating parameters that optimize the efficiency for an output power level of corresponding ones of the radio frequency signals. Transmit weights for transmit signals are determined and updated on a per-packet basis.
摘要翻译：无线电发射机和方法控制多个功率放大器中的每一个的效率，所述功率放大器通过多个天线中的相应一个放大用于波束成形传输的多个射频信号中的相应一个。多个功率放大器中的每一个被控制为利用一个或多个操作参数进行操作，该操作参数优化对应的一个射频信号的输出功率电平的效率。基于每个分组确定和更新发送信号的发送权重。

4. 发明申请

US20090285331A1 CONTROL OF POWER AMPLIFIERS IN DEVICES USING TRANSMIT BEAMFORMING 有权
标题翻译：使用发射波束对设备中的功率放大器进行控制
公开(公告)号：US20090285331A1
公开(公告)日：2009-11-19
申请号：US12506813
申请日：2009-07-21
申请人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
发明人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
IPC分类号： H04L25/03
CPC分类号： H04W52/42 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0845 , H04B7/0857 , H04L27/2601
摘要： A radio transmitter and method controls efficiency of each of a plurality of power amplifiers that amplify a corresponding one of a plurality of radio frequency signals for a beamforming transmission by a corresponding one of a plurality of antennas. Each of the plurality of power amplifiers is controlled to operate with one or more operating parameters that optimize the efficiency for an output power level of corresponding ones of the radio frequency signals. Transmit weights for transmit signals are determined and updated on a per-packet basis.
摘要翻译：无线电发射机和方法控制多个功率放大器中的每一个的效率，所述功率放大器通过多个天线中的相应一个放大用于波束成形传输的多个射频信号中的相应一个。多个功率放大器中的每一个被控制为利用一个或多个操作参数进行操作，该操作参数优化对应的一个射频信号的输出功率电平的效率。基于每个分组确定和更新发送信号的发送权重。

5. 发明授权

US06993299B2 Efficiency of power amplifiers in devices using transmit beamforming 有权
标题翻译：功率放大器在使用发射波束成形的器件中的效率
公开(公告)号：US06993299B2
公开(公告)日：2006-01-31
申请号：US10867249
申请日：2004-06-14
申请人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
发明人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
IPC分类号： H04B1/02 , H04B1/04 , H04Q11/12
CPC分类号： H04W52/42 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0845 , H04B7/0857 , H04L27/2601
摘要： Systems and methods for optimizing the efficiency of each of a plurality of power amplifiers that amplify a corresponding one of a plurality of radio frequency signals for transmission by a corresponding one of a plurality of antennas. Using transmit beamforming, the power of each amplified signal output by the power amplifiers may not be the same for all the power amplifiers, and may vary with changes in the communication channel between the transmitting device and receiving device. Each of the plurality of power amplifiers is controlled to operate with one or more operating parameters that optimize the efficiency for an output power level of corresponding ones of the radio frequency signals. By adjusting one or more operating parameters of each power amplifier according to changing requirements (e.g., the destination device and channel conditions), the efficiency of each power amplifier can be optimized. Consequently, one or more of the power amplifiers are operated with one or more operating parameters that reflects the output power actually needed for the corresponding radio frequency signal to be transmitted.
摘要翻译：用于优化多个功率放大器中的每一个功率放大器的效率的系统和方法，其放大多个射频信号中的相应一个，用于由多个天线中的相应一个发射。使用发射波束形成，由功率放大器输出的每个放大信号的功率对于所有功率放大器可能不相同，并且可以随着发射装置和接收装置之间的通信信道的变化而变化。多个功率放大器中的每一个被控制为利用一个或多个操作参数进行操作，该操作参数优化对应的一个射频信号的输出功率电平的效率。通过根据变化的要求（例如，目的地设备和信道条件）调整每个功率放大器的一个或多个操作参数，可以优化每个功率放大器的效率。因此，一个或多个功率放大器通过一个或多个反映要发射的相应射频信号实际需要的输出功率的工作参数来操作。

6. 发明申请

US20080014977A1 System and method for antenna diversity using equal power joint maximal ratio combining 有权
标题翻译：使用等功率联合最大比组合的天线分集的系统和方法
公开(公告)号：US20080014977A1
公开(公告)日：2008-01-17
申请号：US11879156
申请日：2007-07-16
申请人： Gary Sugar , Chandra Vaidyanathan
发明人： Gary Sugar , Chandra Vaidyanathan
IPC分类号： H01Q3/22 , H04B7/00
CPC分类号： H04L25/0204 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0465 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0671 , H04B7/0837 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L5/0023 , H04L27/2601 , H04L2025/03445 , H04W52/42
摘要： An equal gain composite beamforming technique which constrains that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain CBF.
摘要翻译：一种等效增益复合波束成形技术，其限制每个天线输出的信号的功率相同，并且等于发射信号的总功率除以发射天线的数量N。通过降低每个功率放大器的输出功率要求，相对于不相等的增益CBF，功率放大器的硅面积减少多达N倍（其中N等于发射天线的数量）。

7. 发明申请

US20060013327A1 Apparatus for antenna diversity using joint maximal ratio combining 失效
公开(公告)号：US20060013327A1
公开(公告)日：2006-01-19
申请号：US11231161
申请日：2005-09-20
申请人： Gary Sugar , Chandra Vaidyanathan , Yohannes Tesfai
发明人： Gary Sugar , Chandra Vaidyanathan , Yohannes Tesfai
IPC分类号： H04K1/10 , H04J11/00
CPC分类号： H04L5/0007 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0417 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0671 , H04B7/0845 , H04B7/0848 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L27/2602 , H04L27/2626 , H04L2025/03426 , H04L2025/03611 , H04W52/42
摘要： A transceiver using composite beamforming technique is provided wherein a first communication device has a plurality of antennas and the second communication has a plurality of antennas. When the first communication device transmits to the second communication device, the transmit signal is multiplied by a transmit weight vector for transmission by each the plurality of antennas and the transmit signals are received by the plurality of antennas at the second communication device. The optimum transmit weight vector and receive weight vector for communication between the first and second communication devices is determined so that there is effectively joint or composite beamforming between the communication devices.

8. 发明申请

US20050215202A1 System and method for antenna diversity using equal power joint maximal ratio combining 有权
标题翻译：使用等功率联合最大比组合的天线分集的系统和方法
公开(公告)号：US20050215202A1
公开(公告)日：2005-09-29
申请号：US10800610
申请日：2004-03-15
申请人： Gary Sugar , Chandra Vaidyanathan
发明人： Gary Sugar , Chandra Vaidyanathan
IPC分类号： H01Q3/28 , H03G3/30 , H04B1/04 , H04B7/005 , H04B7/06 , H04B7/08 , H04L1/06 , H04L25/02 , H04L25/03 , H04L27/26 , H04B1/00 , H01Q3/22 , H04B7/00
CPC分类号： H04L25/0204 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0465 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0671 , H04B7/0837 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L5/0023 , H04L27/2601 , H04L2025/03445 , H04W52/42
摘要： An equal gain composite beamforming technique which constrains that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain CBF.
摘要翻译：等效增益复合波束形成技术，其限制每个天线输出的信号的功率相同，并且等于发射信号的总功率除以发射天线的数量N，信号将从该天线的数量N发射。通过降低每个功率放大器的输出功率要求，相对于不相等的增益CBF，功率放大器的硅面积减少多达N倍（其中N等于发射天线的数量）。

9. 发明授权

US08676144B2 Adaptive interference nulling for MIMO receiver based on interference characteristics 有权
标题翻译：基于干扰特性的MIMO接收机的自适应干扰归零
公开(公告)号：US08676144B2
公开(公告)日：2014-03-18
申请号：US13086643
申请日：2011-04-14
申请人： Li Guo , Hang Jin , Paul J. Stager , Neil R. Diener , Matthew A. Silverman , Chandra Vaidyanathan
发明人： Li Guo , Hang Jin , Paul J. Stager , Neil R. Diener , Matthew A. Silverman , Chandra Vaidyanathan
IPC分类号： H04B1/10
CPC分类号： H04B7/0865 , H04B17/345
摘要： Interference in an unlicensed frequency band is spatially filtered out from received signals at a wireless device operating in the unlicensed frequency band. Energy received at a plurality of antennas of the wireless is device is analyzed to detect interference in the unlicensed frequency band. The detected interference is classified by type. Parameters for a nulling filter are generated or selected based on the type of interference detected in the received energy. During a time interval when it is expected to receive desired signals, the nulling filter is applied using the parameters to signals obtained from energy received at the plurality of antennas during the time interval.
摘要翻译：未经授权的频带中的干扰在从未接收的频带中工作的无线设备的接收信号中被空间滤除。对在无线的多个天线处接收的能量进行分析，以检测未许可频带中的干扰。检测到的干扰按类型分类。基于在接收能量中检测到的干扰类型来生成或选择归零滤波器的参数。在预期接收期望信号的时间间隔期间，使用参数将归零滤波器应用于在时间间隔期间从在多个天线接收的能量获得的信号。

10. 发明申请

US20090296848A1 JOINT MAXIMAL RATIO COMBINING USING TIME-DOMAUIN BASED SIGNAL PROCESSING 审中-公开
标题翻译：使用基于时间信号的信号处理联合最大比率组合
公开(公告)号：US20090296848A1
公开(公告)日：2009-12-03
申请号：US12538446
申请日：2009-08-10
申请人： Yohannes Tesfai , Chandra Vaidyanathan , Gary L. Sugar
发明人： Yohannes Tesfai , Chandra Vaidyanathan , Gary L. Sugar
IPC分类号： H03K5/159 , H04B7/02
CPC分类号： H04B7/0413 , H04B7/0615 , H04B7/0669 , H04B7/0671 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L25/0204 , H04L27/2601 , H04L2025/03445 , H04W52/42
摘要： A communication device transmits and receives communication signals with another communication device via a plurality of antennas, a plurality of transmit tapped delay-line filters, a plurality of receive tapped delay-line filters, a combiner/analyzer with a plurality of filters for signal processing; and a plurality of computation blocks. The computation blocks determine complex weights for the tapped delay-line filters for optimizing the received signal-to-noise ratio and the range of communication of the communication device.
摘要翻译：通信设备经由多个天线，多个发射抽头延迟线滤波器，多个接收抽头延迟线滤波器，具有多个用于信号处理的滤波器的组合器/分析器来发送和接收与另一通信设备的通信信号 ; 和多个计算块。计算块确定用于优化接收到的信噪比和通信设备的通信范围的抽头延迟线滤波器的复权重。

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