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公开(公告)号：US20090285172A1
公开(公告)日：2009-11-19
申请号：US12508816
申请日：2009-07-24
IPC分类号： H04W72/04
摘要： A method and apparatus for assigning holding packets in a wireless communication system or network includes determining an invalid station address that corresponds to an invalid station and that does not correspond to the address of an affiliated station. The invalid station address is assigned to a holding packet. The holding packet is transmitted to allocate a transmit period to the invalid station. This generates a quiet time in the wireless communication system or network during the transmit period.
摘要翻译： 一种用于在无线通信系统或网络中分配保持分组的方法和装置包括确定对应于无效站并且不对应于附属站的地址的无效站地址。 将无效站地址分配给保持分组。 发送保持分组以向无效站分配发送周期。 这在发送周期期间在无线通信系统或网络中产生安静的时间。
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公开(公告)号：US07583933B2
公开(公告)日：2009-09-01
申请号：US11595363
申请日：2006-11-09
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.
摘要翻译： 一种用于在无线通信系统或网络中进行动态频率选择的方法和装置包括当接入点确定由接入点正在使用的无线信道上的干扰时开始的处理。 当干扰超过干扰阈值时，接入点向由接入点为信道频谱信息服务的附属站提供请求分组。 处理继续，因为附属站产生关于无线通信网络中的每个无线信道的信道频谱信息。 然后，处理继续，随着附属站经由当前无线信道向接入点提供信道频谱信息。 接入点解释信道频谱信息以确定无线通信网络内的多个无线信道的期望的无线信道。 接入点然后经由当前无线信道向附属站提供选择分组，以指示接入点将在特定的未来时间开始使用期望的无线信道。
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公开(公告)号：US07158759B2
公开(公告)日：2007-01-02
申请号：US10011004
申请日：2001-12-03
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.
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公开(公告)号：US07324785B2
公开(公告)日：2008-01-29
申请号：US09997938
申请日：2001-11-30
IPC分类号： H04B1/00
CPC分类号： H04B1/385 , H04B1/3838 , H04B2001/3872
摘要： A method and apparatus for controlling transmit power of a wireless communication device includes processing that begins when a transmitting wireless communication device transmits a packet to a targeted wireless device via a wireless channel of a communication system at a 1st power level. The processing continues by having the targeted wireless device determining signal strength of the packet received via the wireless channel. The processing then continues when the targeted and/or transmitting device determines the adequacy of the 1st power level based on the determined signal strength. If the 1st power level is adequate, the transmitting wireless device continues to transmit information at the 1st power level. If, however, the 1st power level is not adequate, the transmitting communication device adjusts its transmit power up or down to provide an adequate power level.
摘要翻译： 一种用于控制无线通信设备的发射功率的方法和装置包括当发送无线通信设备经由无线通信系统的无线信道向目标无线设备发送分组时开始的处理， 能量等级。 通过使目标无线设备确定经由无线信道接收到的分组的信号强度，继续处理。 然后，当目标和/或发射装置基于确定的信号强度来确定1 SUP的功率电平的充足性时，处理继续。 如果1 功率电平足够，则发送无线设备继续以1 SUP功率电平发送信息。 然而，如果第一功率电平不足，则发射通信设备向上或向下调整其发射功率以提供足够的功率电平。
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5.发明授权公开(公告)号：US07564914B2
公开(公告)日：2009-07-21
申请号：US11052353
申请日：2005-02-07
CPC分类号： H04B7/0417 , H04B7/0426 , H04B7/0626 , H04B7/063 , H04B7/0634 , H04B7/0663 , H04B7/0689 , H04B7/0691 , H04L1/0001 , H04L1/0025 , H04L1/0028 , H04L1/0029 , H04L1/06 , H04L1/0681 , H04L1/0693
摘要： A method and system for frame formats for MIMO channel measurement exchange is provided. Aspects of a method for communicating information in a communication system may comprise transmitting data via a plurality of radio frequency (RF) channels utilizing a plurality of transmitting antenna, receiving feedback information via at least one of a plurality of RF channels, and modifying a transmission mode based on the feedback information. Aspects of a method for communicating information in a communication system may also comprise receiving data via a plurality of receiving antenna, transmitting feedback information via at least one of the plurality of RF channels, and requesting modification of a transmission mode for the received data in transmitted response messages comprising the feedback information.
摘要翻译： 提供了一种用于MIMO信道测量交换的帧格式的方法和系统。 用于在通信系统中传送信息的方法的方面可以包括利用多个发射天线经由多个射频（RF）信道发送数据，经由多个RF信道中的至少一个接收反馈信息，以及修改传输 模式基于反馈信息。 用于在通信系统中传送信息的方法的方面还可以包括经由多个接收天线接收数据，经由多个RF信道中的至少一个RF信道发送反馈信息，并请求修改发送的接收数据的发送模式 响应消息包括反馈信息。
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6.发明授权Feedback of channel information in a closed loop beamforming wireless communication system 有权闭环波束成形无线通信系统中信道信息的反馈公开(公告)号：US08743994B2
公开(公告)日：2014-06-03
申请号：US13729881
申请日：2012-12-28
IPC分类号： H04W80/00
CPC分类号： H04W80/00 , H04B7/0421 , H04B7/0617 , H04B7/0628 , H04B7/0634 , H04L1/0026 , H04L1/0045 , H04L1/0068 , H04L1/06 , H04L27/2601
摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
摘要翻译： 将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。 接收无线设备基于前导序列估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。 接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。
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公开(公告)号：US08184679B2
公开(公告)日：2012-05-22
申请号：US12360850
申请日：2009-01-27
申请人： Joonsuk Kim , Christopher J. Hansen
发明人： Joonsuk Kim , Christopher J. Hansen
CPC分类号： H04L25/0206 , H04B7/0408 , H04B7/0617 , H04L1/0003 , H04L1/0026
摘要： A modulation control module for use in an RF transceiver, the modulation control module includes a processing module and memory. The memory is operably coupled to the processing module, wherein the memory stores operational instructions that causes the processing module to: receive a multiple path channel estimation; and determining, for each transmit path of a multiple input multiple output (MIMO) wireless communication, a modulation control signal based on a corresponding portion of the multiple path channel estimation.
摘要翻译： 一种用于RF收发器的调制控制模块，所述调制控制模块包括处理模块和存储器。 存储器可操作地耦合到处理模块，其中存储器存储使处理模块执行以下操作的操作指令：接收多路径信道估计; 以及针对多输入多输出（MIMO）无线通信的每个发送路径，基于所述多路径信道估计的相应部分来确定调制控制信号。
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8.发明授权Adaptive modulation in a multiple input multiple output wireless communication system with optional beamforming 有权在具有可选波束成形的多输入多输出无线通信系统中的自适应调制公开(公告)号：US08085871B2
公开(公告)日：2011-12-27
申请号：US11244518
申请日：2005-10-06
申请人： Joonsuk Kim , Christopher J. Hansen
发明人： Joonsuk Kim , Christopher J. Hansen
IPC分类号： H04K1/10
CPC分类号： H04B7/0617 , H04B7/0417 , H04B7/0634 , H04L1/0003 , H04L1/0041 , H04L1/0068 , H04L1/0071 , H04L1/0075
摘要： A transmitting MIMO wireless device transmits a training sequence to a receiving MIMO wireless device. The receiving MIMO wireless device estimates a channel response based upon the training sequence, determines an estimated transmitter beamforming unitary matrix and a transmit path quality matrix, and then transmits some/all of these parameters to the transmitting MIMO wireless device. The transmitting MIMO wireless device receives these components and determines a modulation to be employed for each of a plurality of data streams. The transmitting MIMO wireless device transmits a data frame to the receiving MIMO wireless device that includes a short training sequence, a long training sequence, a signal field with demodulation control signals, and a data payload for each of multiple data streams. According to one embodiment of the signal field, the signal field indicates a number of data streams of the data frame and a modulation employed for each data stream. The signal field may include additional information, such as whether beamforming is employed for the data frame.
摘要翻译： 发射MIMO无线设备向接收MIMO无线设备发送训练序列。 接收MIMO无线设备基于训练序列估计信道响应，确定估计的发射机波束形成单位矩阵和发射路径质量矩阵，然后将这些参数中的一些/全部发送到发射MIMO无线设备。 发送MIMO无线设备接收这些组件并确定要用于多个数据流中的每一个的调制。 发送MIMO无线设备向包括短训练序列，长训练序列，具有解调控制信号的信号字段和多个数据流中的每一个的数据有效载荷的接收MIMO无线设备发送数据帧。 根据信号场的一个实施例，信号字段指示数据帧的数据流的数量以及为每个数据流采用的调制。 信号字段可以包括附加信息，诸如是否对数据帧使用波束成形。
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9.发明授权公开(公告)号：US07957450B2
公开(公告)日：2011-06-07
申请号：US12506053
申请日：2009-07-20
IPC分类号： H04B1/00
CPC分类号： H04B7/0417 , H04B7/0426 , H04B7/0626 , H04B7/063 , H04B7/0634 , H04B7/0663 , H04B7/0689 , H04B7/0691 , H04L1/0001 , H04L1/0025 , H04L1/0028 , H04L1/0029 , H04L1/06 , H04L1/0681 , H04L1/0693
摘要： A method and system for frame formats for MIMO channel measurement exchange is provided. Aspects of a method for communicating information in a communication system may comprise transmitting data via a plurality of radio frequency (RF) channels utilizing a plurality of transmitting antenna, receiving feedback information via at least one of a plurality of RF channels, and modifying a transmission mode based on the feedback information. Aspects of a method for communicating information in a communication system may also comprise receiving data via a plurality of receiving antenna, transmitting feedback information via at least one of the plurality of RF channels, and requesting modification of a transmission mode for the received data in transmitted response messages comprising the feedback information.
摘要翻译： 提供了一种用于MIMO信道测量交换的帧格式的方法和系统。 用于在通信系统中传送信息的方法的方面可以包括利用多个发射天线经由多个射频（RF）信道发送数据，经由多个RF信道中的至少一个接收反馈信息，以及修改传输 模式基于反馈信息。 用于在通信系统中传送信息的方法的方面还可以包括经由多个接收天线接收数据，经由多个RF信道中的至少一个RF信道发送反馈信息，并请求修改发送的接收数据的传输模式 响应消息包括反馈信息。
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10.发明授权Feedback of channel information in a closed loop beamforming wireless communication system 有权闭环波束成形无线通信系统中信道信息的反馈公开(公告)号：US08345732B2
公开(公告)日：2013-01-01
申请号：US11412388
申请日：2006-04-27
IPC分类号： H04L5/16
CPC分类号： H04W80/00 , H04B7/0421 , H04B7/0617 , H04B7/0628 , H04B7/0634 , H04L1/0026 , H04L1/0045 , H04L1/0068 , H04L1/06 , H04L27/2601
摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
摘要翻译： 将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。 接收无线设备基于前导序列来估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。 接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。
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