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    Method and apparatus for signaling sequence root
    1.
    发明授权
    Method and apparatus for signaling sequence root 有权
    用于信令序列根的方法和装置

    公开(公告)号：US08964561B2

    公开(公告)日：2015-02-24

    申请号：US13464213

    申请日：2012-05-04

    申请人： Taejoon Kim ,  Sayantan Choudhury ,  Klaus F. Doppler ,  Chittabrata Ghosh ,  Zhong-Yi Jin ,  Esa Tuomaala

    发明人： Taejoon Kim ,  Sayantan Choudhury ,  Klaus F. Doppler ,  Chittabrata Ghosh ,  Zhong-Yi Jin ,  Esa Tuomaala

    IPC分类号： H04W4/20

    CPC分类号： H04W28/06 ,  H04W16/14 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/06

    摘要： A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.

    摘要翻译： 第一网络的第一接入节点利用分配给不同用户设备的代码序列，至少区分并行或顺序接收的确认与那些用户设备。 第一接入节点从接收到的信令确定代码序列的根序列正在由第二网络的第二接入节点使用，然后改变分配给不同用户设备的码序列的根序列。 在某些示例中，接入节点是WLAN接入点AP，并且响应于组探测/轮询接收确认。 在各种实施例中，第一AP监视其邻居的组探测/轮询以学习在这些邻居网络中使用的根序列/基本服务集，或者AP本身的站在邻居报告中监视和发送信息。 后一选项可以由站本身或AP发起。

    Multiple antenna communication system including adaptive updating and changing of codebooks
    3.
    发明授权
    Multiple antenna communication system including adaptive updating and changing of codebooks 有权
    多天线通信系统包括自适应更新和码本的改变

    公开(公告)号：US08498358B2

    公开(公告)日：2013-07-30

    申请号：US12429937

    申请日：2009-04-24

    申请人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    发明人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0417

    摘要： Communication between a base station with multiple transmission antennas and a mobile station is provided. The base station and the mobile station may recognize or estimate, respectively, a channel between the base station and the mobile station, and update a previous codebook with a new codebook based on a variation of the channel. In this instance, the mobile station may provide feedback information to the base station using the new codebook, and the base station may generate a transmission signal for the mobile station using the new codebook and the feedback information.

    摘要翻译： 提供了具有多个发送天线的基站与移动台之间的通信。 基站和移动台可以分别识别或估计基站和移动站之间的信道，并且基于信道的变化用新码本更新先前的码本。 在这种情况下，移动台可以使用新的码本向基站提供反馈信息，并且基站可以使用新的码本和反馈信息来生成针对移动台的发送信号。

    PHASE LOCKING LOOP
    4.
    发明申请
    PHASE LOCKING LOOP 有权
    相位锁定环

    公开(公告)号：US20120106611A1

    公开(公告)日：2012-05-03

    申请号：US13284716

    申请日：2011-10-28

    申请人： Taejoon KIM ,  Timothy M. SCHMIDL ,  Srinath HOSUR

    发明人： Taejoon KIM ,  Timothy M. SCHMIDL ,  Srinath HOSUR

    IPC分类号： H03D3/18 ,  H04B3/46 ,  H03D1/24 ,  H04L27/06

    CPC分类号： H04L27/2657

    摘要： A phase-locking loop (PLL) for use with orthogonal frequency division multiplexed signals. In one embodiment, a wireless receiver includes a PLL is configured to reduce phase and frequency divergence between the wireless receiver and a transmitter of a packet received by the wireless receiver. The PLL includes a loop bandwidth controller. The loop bandwidth controller is configured to set a bandwidth of the PLL to a first value for reception of an initial symbol of the packet. The loop bandwidth controller is configured to reduce the bandwidth of the PLL over a number of symbols preceding an initial header of the packet.

    摘要翻译： 一种用于正交频分复用信号的锁相环（PLL）。 在一个实施例中，无线接收机包括PLL被配置为减少无线接收机与由无线接收机接收的分组的发射机之间的相位和频率发散。 PLL包括一个环路带宽控制器。 环路带宽控制器被配置为将PLL的带宽设置为用于接收分组的初始符号的第一值。 环路带宽控制器被配置为在分组的初始报头之前的多个符号上减少PLL的带宽。

    System for feeding back index of codeword matrix
    5.
    发明授权
    System for feeding back index of codeword matrix 有权
    用于反馈码字矩阵索引的系统

    公开(公告)号：US08160125B2

    公开(公告)日：2012-04-17

    申请号：US12109440

    申请日：2008-04-25

    申请人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    发明人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    IPC分类号： H04B1/38 ,  H04B7/02 ,  H04L1/02

    CPC分类号： H04B7/0639

    摘要： A system is provided for performing downlink beamforming based on information fed back by a mobile station. The mobile station includes a channel matrix generation unit to generate a channel matrix with respect to channels ranging from a base station to a mobile station, the base station including multiple transmission antennas, a codebook updating unit to generate a second codebook including a plurality of second codeword matrixes based on the generated channel matrix and a first codebook including a plurality of first codeword matrixes, a codeword selection unit to select at least one transmission codeword matrix from among the plurality of second codeword matrixes, a transmission unit to transmit an index of the selected transmission codeword matrix to the base station, and a receiving unit to receive data transmitted from the base station via the multiple transmission antennas.

    摘要翻译： 提供一种用于基于由移动台反馈的信息来执行下行链路波束成形的系统。 移动站包括：信道矩阵生成单元，生成相对于从基站到移动站的信道的信道矩阵，所述基站包括多个发送天线，码本更新单元，生成包含多个秒的第二码本 基于生成的信道矩阵的码字矩阵和包括多个第一码字矩阵的第一码本，从所述多个第二码字矩阵中选择至少一个发送码字矩阵的码字选择单元，发送所述多个第一码字矩阵的索引的发送单元， 所选择的发送码字矩阵到基站，接收单元经由多个发送天线接收从基站发送的数据。

    System and method for channel interpolation
    6.
    发明授权
    System and method for channel interpolation 有权
    通道插补的系统和方法

    公开(公告)号：US08644428B2

    公开(公告)日：2014-02-04

    申请号：US13284667

    申请日：2011-10-28

    申请人： Taejoon Kim ,  Timothy M. Schmidl

    发明人： Taejoon Kim ,  Timothy M. Schmidl

    IPC分类号： H03D1/00 ,  H04L27/06

    CPC分类号： H04L25/0232 ,  H04L25/0256 ,  H04L27/2647

    摘要： A system and method for channel interpolation in a wireless device. In one embodiment a wireless device includes a channel estimator. The channel estimator is configured to generate estimated channel coefficients for a wireless channel over which the wireless device receives a packet. The channel estimator includes an interpolation filter. The interpolation filter is configured to provide interpolated channel coefficients for a plurality of non-pilot sub-carriers. The interpolated channel coefficients are based on pilot sub-carriers of non-preamble symbols.

    摘要翻译： 一种用于无线设备中信道插值的系统和方法。 在一个实施例中，无线设备包括信道估计器。 信道估计器被配置为生成无线设备接收分组的无线信道的估计信道系数。 信道估计器包括内插滤波器。 内插滤波器被配置为为多个非导频子载波提供内插信道系数。 内插信道系数基于非前同步码符号的导频子载波。

    Method And Apparatus For Signaling Sequence Root
    7.
    发明申请
    Method And Apparatus For Signaling Sequence Root 有权
    信号序列根的方法和装置

    公开(公告)号：US20130294427A1

    公开(公告)日：2013-11-07

    申请号：US13464213

    申请日：2012-05-04

    申请人： Taejoon Kim ,  Sayantan Choudhury ,  Klaus F. Doppler ,  Chittabrata Ghosh ,  Zhong-Yi Jin ,  Esa Tuomaala

    发明人： Taejoon Kim ,  Sayantan Choudhury ,  Klaus F. Doppler ,  Chittabrata Ghosh ,  Zhong-Yi Jin ,  Esa Tuomaala

    IPC分类号： H04W84/12

    CPC分类号： H04W28/06 ,  H04W16/14 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/06

    摘要： A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.

    摘要翻译： 第一网络的第一接入节点利用分配给不同用户设备的代码序列，至少区分并行或顺序接收的确认与那些用户设备。 第一接入节点从接收的信令确定代码序列的根序列正在由第二网络的第二接入节点使用，然后改变分配给不同用户设备的码序列的根序列。 在某些示例中，接入节点是WLAN接入点AP，并且响应于组探测/轮询接收确认。 在各种实施例中，第一AP监视其邻居的组探测/轮询来学习在这些邻居网络中使用的根序列/基本服务集，或者AP本身的站在邻居报告中监视和发送信息。 后一选项可以由站本身或AP发起。

    METHOD AND APPARATUS FOR GROUP SYNCHRONIZED CHANNEL ACCESS WITH TIM SEGMENTATION
    8.
    发明申请
    METHOD AND APPARATUS FOR GROUP SYNCHRONIZED CHANNEL ACCESS WITH TIM SEGMENTATION 审中-公开
    用于分组的组同步信道接入的方法和装置

    公开(公告)号：US20130229959A1

    公开(公告)日：2013-09-05

    申请号：US13523418

    申请日：2012-06-14

    申请人： Chittabrata Ghosh ,  Klaus Franz Doppler ,  Taejoon Kim ,  Sayantan Choudhury ,  Esa Tuomaala

    发明人： Chittabrata Ghosh ,  Klaus Franz Doppler ,  Taejoon Kim ,  Sayantan Choudhury ,  Esa Tuomaala

    IPC分类号： H04W52/02

    CPC分类号： H04W74/08

    摘要： A method includes receiving indications of a wake-up interval assigned to a station and a corresponding group to which the station belongs, wherein all stations assigned to the group are assigned the wake-up interval. The method includes waking the station during the wake-up interval and determining, using at least the indication of the group, whether information received by the station during the wake-up interval corresponds to the group. Another method includes assigning stations to one of multiple groups based on wake-up intervals, in which stations assigned to a group all have a same wake-up interval and each group has a different wake-up interval, sending indications of a corresponding wake-up interval and a corresponding group to each of the stations, and during a interval corresponding to the wake-up interval for a selected group, transmitting the indication of the selected group and associated information meant for the group.

    摘要翻译： 一种方法包括接收分配给站点的呼叫间隔的指示和该站所属的对应组，其中分配给组的所有站被分配唤醒间隔。 该方法包括在唤醒间隔期间唤醒站，以及至少使用该组的指示，确定在唤醒间隔期间该站所接收的信息是否对应于该组。 另一种方法包括基于唤醒间隔将站分配给多个组中的一个，其中分配给组的站都具有相同的唤醒间隔，并且每个组具有不同的唤醒间隔，发送相应的唤醒间隔的指示， 并且在对应于所选择的组的唤醒间隔的间隔期间，发送所选择的组的指示和针对该组的相关联的信息。