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1. 发明授权

US08873484B1 Hybrid beamforming architecture 有权
标题翻译：混合波束成形架构
公开(公告)号：US08873484B1
公开(公告)日：2014-10-28
申请号：US13285188
申请日：2011-10-31
申请人： Ying-Cheng Lee , Timothy J. Donovan , Dharmesh C. Bhagatwala , Ken Kinwah Ho , Hongyuan Zhang , Rohit U. Nabar , Tsunglun Yu
发明人： Ying-Cheng Lee , Timothy J. Donovan , Dharmesh C. Bhagatwala , Ken Kinwah Ho , Hongyuan Zhang , Rohit U. Nabar , Tsunglun Yu
IPC分类号： H04W4/00
CPC分类号： H04B7/0617 , H04B7/046 , H04B7/0626 , H04B7/0634 , H04B7/0689 , H04B7/0871
摘要： Systems, methods, and other embodiments associated with a hybrid beamforming architecture are described. According to one embodiment, an apparatus includes a beamforming mode detection logic configured to select a beamforming mode based, at least in part, on a packet received from a wireless device. The apparatus also includes a beamformee unit and a beamformer unit. The beamformee unit is configured to derive steering information from channel related information in the packet. The beamformer unit is configured to provide weights from a steering matrix to a transmitter performing transmit beamforming on a subsequent packet being transmitted to the wireless device. The beamforming mode detection logic routes at least part of the packet to one or both of the beamformee unit and the beamformer unit based, at least in part, on the selected beamforming mode.
摘要翻译：描述了与混合波束形成架构相关联的系统，方法和其他实施例。根据一个实施例，一种装置包括波束形成模式检测逻辑，其被配置为至少部分地基于从无线设备接收的分组来选择波束成形模式。该装置还包括波束形成单元和波束形成单元。波束形成单元被配置为从分组中的信道相关信息中导出转向信息。波束形成器单元被配置为从发送到无线设备的后续分组提供从导向矩阵到发射机执行发射波束成形的权重。至少部分地基于所选择的波束形成模式，波束形成模式检测逻辑将分组的至少一部分路由到波束形成单元和波束形成单元中的一个或两个。

2. 发明授权

US08406719B1 Apparatus and methods for detection of interface in radio-frequency devices 有权
标题翻译：用于检测射频设备中接口的装置和方法
公开(公告)号：US08406719B1
公开(公告)日：2013-03-26
申请号：US13472066
申请日：2012-05-15
申请人： Sek Kin Neng , Yungping Hsu , Tsunglun Yu , Ming Ta Lin , Naveen-Kumar Arani
发明人： Sek Kin Neng , Yungping Hsu , Tsunglun Yu , Ming Ta Lin , Naveen-Kumar Arani
IPC分类号： H04B17/00
CPC分类号： H03G3/3068 , H04B17/318
摘要： A receiver is provided and includes a first amplifier configured to amplify, based on a first gain, a radio frequency signal to generate a first amplified signal. The radio frequency signal is received by the receiver on a first channel. A second amplifier generates, based on the first amplified signal and a second gain, a second amplified signal. An output circuit generates a baseband signal based on the second amplified signal. A first detection circuit compares the baseband signal to (i) a first threshold in response to the first gain being at a first level, and (ii) a second threshold in response to the first gain being at a second level. The first detection circuit generates a first detection signal in response to the comparison. A controller, in response to the first detection signal, (i) adjusts the second gain, or (ii) changes the receiver from the first channel.
摘要翻译：提供接收机，并且包括第一放大器，被配置为基于第一增益来放大射频信号以产生第一放大信号。射频信号由接收机在第一信道上接收。第二放大器基于第一放大信号和第二增益产生第二放大信号。输出电路基于第二放大信号产生基带信号。第一检测电路响应于第一增益处于第一电平将基带信号与（i）第一阈值进行比较，以及（ii）响应于第一增益处于第二电平的第二阈值。第一检测电路响应于比较产生第一检测信号。控制器响应于第一检测信号，（i）调整第二增益，或（ii）从第一通道改变接收器。

3. 发明申请

US20100264902A1 DETECTION AND ESTIMATION OF RADIO FREQUENCY VARIATIONS 有权
标题翻译：无线电频率变化的检测和估计
公开(公告)号：US20100264902A1
公开(公告)日：2010-10-21
申请号：US12825775
申请日：2010-06-29
申请人： Bhaskar V. Nallapureddy , Songping Wu , Tsunglun Yu , Hui-Ling Lou
发明人： Bhaskar V. Nallapureddy , Songping Wu , Tsunglun Yu , Hui-Ling Lou
IPC分类号： G01R23/16
CPC分类号： G01S7/021 , G01R23/10
摘要： A system includes a sampling module, a counter module, and a frequency characteristic module. The sampling module samples radio frequency (RF) signals on a first channel for a first predetermined period and a second predetermined period that is subsequent to the first predetermined period. The counter module increments first and second counts when the samples collected during the first and second predetermined periods reverse polarity, respectively. The frequency characteristic module determines a frequency of the RF signal based on at least one of the first and the second counts and determines frequency variation of the RF signal based on the first and second counts.
摘要翻译：系统包括采样模块，计数器模块和频率特征模块。采样模块在第一通道上采样第一预定周期的射频（RF）信号和在第一预定周期之后的第二预定周期。当在第一和第二预定时段期间收集的样本分别反向极性时，计数器模块递增第一和第二计数。频率特性模块基于第一和第二计数中的至少一个来确定RF信号的频率，并且基于第一和第二计数确定RF信号的频率变化。

4. 发明申请

US20070135057A1 Detection and estimation of radio frequency variations 有权
标题翻译：射频变化的检测和估计
公开(公告)号：US20070135057A1
公开(公告)日：2007-06-14
申请号：US11493473
申请日：2006-07-26
申请人： Bhaskar Nallapureddy , Songping Wu , Tsunglun Yu , Hui-Ling Lou
发明人： Bhaskar Nallapureddy , Songping Wu , Tsunglun Yu , Hui-Ling Lou
IPC分类号： H04B17/00 , G01S13/86
CPC分类号： G01S7/021 , G01R23/10
摘要： A system includes a sampling module, a counter module, and a frequency characteristic module. The sampling module samples radio frequency (RF) signals on a first channel for a first predetermined period and a second predetermined period that is subsequent to the first predetermined period. The counter module increments first and second counts when the samples collected during the first and second predetermined periods reverse polarity, respectively. The frequency characteristic module determines a frequency of the RF signal based on at least one of the first and the second counts and determines frequency variation of the RF signal based on the first and second counts.
摘要翻译：系统包括采样模块，计数器模块和频率特征模块。采样模块在第一通道上采样第一预定周期的射频（RF）信号和在第一预定周期之后的第二预定周期。当在第一和第二预定时段期间收集的样本分别反向极性时，计数器模块递增第一和第二计数。频率特性模块基于第一和第二计数中的至少一个来确定RF信号的频率，并且基于第一和第二计数确定RF信号的频率变化。

5. 发明申请

US20100202359A1 RADAR DETECTION AND DYNAMIC FREQUENCY SELECTION 审中-公开
标题翻译：雷达检测和动态频率选择
公开(公告)号：US20100202359A1
公开(公告)日：2010-08-12
申请号：US12761937
申请日：2010-04-16
申请人： Bhaskar V. Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Kin Neng
发明人： Bhaskar V. Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Kin Neng
IPC分类号： H04W40/00
CPC分类号： G01S7/021 , G01S7/023
摘要： A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF) signal and generates a correlation signal based thereon. The automatic gain control (AGC) module generates a gain control signal based on said RF signal. The control module selectively determines whether said RF signal is a radar signal based on said correlation signal and said gain control signal.
摘要翻译：无线网络设备包括相关模块，自动增益控制模块和控制模块。相关模块将射频（RF）信号的预定部分相关，并基于此产生相关信号。自动增益控制（AGC）模块基于所述RF信号产生增益控制信号。所述控制模块基于所述相关信号和所述增益控制信号选择性地确定所述RF信号是否为雷达信号。

6. 发明授权

US07702044B2 Radar detection and dynamic frequency selection 有权
标题翻译：雷达检测和动态频率选择
公开(公告)号：US07702044B2
公开(公告)日：2010-04-20
申请号：US11410938
申请日：2006-04-25
申请人： Bhaskar V. Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Kin Neng
发明人： Bhaskar V. Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Kin Neng
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： G01S7/021 , G01S7/023
摘要： A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF) signal and generates a correlation signal based thereon. The automatic gain control (AGC) module generates a gain control signal based on said RF signal. The control module selectively determines whether said RF signal is a radar signal based on said correlation signal and said gain control signal.
摘要翻译：无线网络设备包括相关模块，自动增益控制模块和控制模块。相关模块将射频（RF）信号的预定部分相关，并基于此产生相关信号。自动增益控制（AGC）模块基于所述RF信号产生增益控制信号。所述控制模块基于所述相关信号和所述增益控制信号选择性地确定所述RF信号是否为雷达信号。

7. 发明申请

US20070126622A1 Radar detection and dynamic frequency selection 有权
标题翻译：雷达检测和动态频率选择
公开(公告)号：US20070126622A1
公开(公告)日：2007-06-07
申请号：US11410938
申请日：2006-04-25
申请人： Bhaskar Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Neng
发明人： Bhaskar Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Neng
IPC分类号： G01S13/00
CPC分类号： G01S7/021 , G01S7/023
摘要： A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF) signal and generates a correlation signal based thereon. The automatic gain control (AGC) module generates a gain control signal based on said RF signal. The control module selectively determines whether said RF signal is a radar signal based on said correlation signal and said gain control signal.
摘要翻译：无线网络设备包括相关模块，自动增益控制模块和控制模块。相关模块将射频（RF）信号的预定部分相关，并基于此产生相关信号。自动增益控制（AGC）模块基于所述RF信号产生增益控制信号。所述控制模块基于所述相关信号和所述增益控制信号选择性地确定所述RF信号是否为雷达信号。

8. 发明授权

US09366750B2 Radar detection and dynamic frequency selection 有权
标题翻译：雷达检测和动态频率选择
公开(公告)号：US09366750B2
公开(公告)日：2016-06-14
申请号：US12761937
申请日：2010-04-16
申请人： Bhaskar V. Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Kin Neng
发明人： Bhaskar V. Nallapureddy , Tsunglun Yu , Yungping Hsu , Sek Kin Neng
IPC分类号： H04L27/06 , G01S7/02
CPC分类号： G01S7/021 , G01S7/023
摘要： A method and apparatus for: receiving a radio frequency (RF) signal on a first channel; determining a radio signal strength of the RF signal; performing a correlation of the RF signal with a predetermined sequence of a wireless data packet to determine whether the RF signal contains the predetermined sequence; in response to the RF signal not containing the predetermined sequence, generating an indication that the RF signal is not a wireless data packet; and determining whether the radio signal strength of the RF signal exceeds a predetermined threshold. In response to i) the radio signal strength exceeding the predetermined threshold and ii) the indication being generated: measuring a parameter associated with the RF signal; determining whether the RF signal is a radar signal based on the parameter; and changing from the first channel in response to the RF signal being determined to be a radar signal.
摘要翻译：一种用于在第一信道上接收射频（RF）信号的方法和设备; 确定RF信号的无线电信号强度; 执行所述RF信号与无线数据分组的预定序列的相关性，以确定所述RF信号是否包含所述预定序列; 响应于不包含预定序列的RF信号，产生RF信号不是无线数据分组的指示; 以及确定所述RF信号的无线电信号强度是否超过预定阈值。响应于i）所述无线电信号强度超过所述预定阈值，以及ii）正在产生的指示：测量与所述RF信号相关联的参数; 基于所述参数确定所述RF信号是否为雷达信号; 并且响应于RF信号被确定为雷达信号，从第一信道改变。

9. 发明授权

US08346174B2 Detection and estimation of radio frequency variations 有权
标题翻译：射频变化的检测和估计
公开(公告)号：US08346174B2
公开(公告)日：2013-01-01
申请号：US12825775
申请日：2010-06-29
申请人： Bhaskar V. Nallapureddy , Songping Wu , Tsunglun Yu , Hui-Ling Lou
发明人： Bhaskar V. Nallapureddy , Songping Wu , Tsunglun Yu , Hui-Ling Lou
IPC分类号： H04B7/00
CPC分类号： G01S7/021 , G01R23/10
摘要： A system including a sampling module that generates samples of RF signals on a first channel during first, second, and third periods, which do not overlap. A difference module determines a first difference between i) a first count of polarity reversals during the first period and ii) a second count of polarity reversals during the second period; a second difference between i) the second count and ii) a third count of polarity reversals during the third period; and a third difference between the first and second differences. A third module determines a frequency of the RF signals based on at least one of the first and second counts, determines a frequency variation of the RF signals based on the first and second counts, and identifies a radar type of the RF signals based on at least one of the third difference and the frequency variation.
摘要翻译：一种系统，包括采样模块，其在第一，第二和第三周期期间在第一通道上产生不重叠的RF信号样本。差分模块确定i）在第一周期期间的极性反转的第一计数和ii）在第二周期期间的极性反转的第二计数的第一差异; i）第二计数和ii）在第三周期期间极性反转的第三计数的第二个差异; 以及第一和第二差异之间的第三个差异。第三模块基于第一计数和第二计数中的至少一个来确定RF信号的频率，基于第一和第二计数确定RF信号的频率变化，并且基于at来识别RF信号的雷达类型第三个差异和频率变化中的至少一个。

10. 发明授权

US08180308B1 Apparatus and methods for detection of interface in radio-frequency devices 有权
标题翻译：用于检测射频设备中接口的装置和方法
公开(公告)号：US08180308B1
公开(公告)日：2012-05-15
申请号：US12372858
申请日：2009-02-18
申请人： Sek Kin Neng , Yungping Hsu , Tsunglun Yu , Ming Ta Lin , Naveen-Kumar Arani
发明人： Sek Kin Neng , Yungping Hsu , Tsunglun Yu , Ming Ta Lin , Naveen-Kumar Arani
IPC分类号： H04B17/00
CPC分类号： H03G3/3068 , H04B17/318
摘要： A communication apparatus includes a radio frequency (RF) apparatus. The RF apparatus includes an amplifier, and a signal detection circuit. The amplifier receives RF signals and amplifies those signals. The amplifier has an adjustable gain value. The signal detection circuit detects whether a received signal is an out-of-band radar signal depending on the gain value of the amplifier and a characteristic of the received signal.
摘要翻译：通信装置包括射频（RF）装置。 RF装置包括放大器和信号检测电路。放大器接收RF信号并放大那些信号。放大器具有可调节的增益值。信号检测电路根据放大器的增益值和接收信号的特性来检测接收信号是否为带外雷达信号。

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