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    PARALLEL CHANNEL TRAINING IN MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT SYSTEM
    4.
    发明申请
    PARALLEL CHANNEL TRAINING IN MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT SYSTEM 有权
    多用户多输入和多输出系统中的并行通道训练

    公开(公告)号：US20160072564A1

    公开(公告)日：2016-03-10

    申请号：US14582332

    申请日：2014-12-24

    申请人： Qinghua Li ,  Xiaogang Chen ,  Huaning Niu ,  Robert Stacey ,  Yuan Zhu ,  Xintian E. Lin

    发明人： Qinghua Li ,  Xiaogang Chen ,  Huaning Niu ,  Robert Stacey ,  Yuan Zhu ,  Xintian E. Lin

    IPC分类号： H04B7/04 ,  H04W76/02 ,  H04W72/04 ,  G06N99/00 ,  H04B7/06

    CPC分类号： H04B7/0452 ,  G06N99/005 ,  H04L5/0025 ,  H04L5/0051 ,  H04L27/2613 ,  H04W72/00

    摘要： This disclosure describes systems, and methods related to parallel channel training in communication networks. A first computing device comprising one or more processors and one or more transceiver component may receive a first connection request from a second computing device, and a second connection request from a third computing device. The first computing device may determine a first training field associated with the first connection request and a second training field associated with the second request. The first computing device may send the first training field to the second computing device based at least in part on the first connection request and sending in parallel, the second training field to the third computing device based at least in part on the second connection request. The first computing device may establish a first spatial channel stream with the second computing device based at least in part on the first training field and a second spatial channel stream with the third computing device based at least in part on the second training field.

    摘要翻译： 本公开描述了与通信网络中的并行信道训练相关的系统和方法。 包括一个或多个处理器和一个或多个收发器组件的第一计算设备可以从第二计算设备接收第一连接请求，并从第三计算设备接收第二连接请求。 第一计算设备可以确定与第一连接请求相关联的第一训练场和与第二请求相关联的第二训练场。 第一计算设备可以至少部分地基于第一连接请求将第一训练场发送到第二计算设备，并且至少部分地基于第二连接请求并行地发送第二训练场到第三计算设备。 第一计算设备可以至少部分地基于第一训练场和第三计算设备的第二空间信道流至少部分地基于第二训练场来建立与第二计算设备的第一空间信道流。

    SYSTEMS AND METHODS FOR WIRELESS DISPLAY DISCOVERY
    6.
    发明申请
    SYSTEMS AND METHODS FOR WIRELESS DISPLAY DISCOVERY 有权
    无线显示发现的系统和方法

    公开(公告)号：US20150220296A1

    公开(公告)日：2015-08-06

    申请号：US14128001

    申请日：2013-09-24

    申请人： Xintian E. LIN ,  Jie GAO ,  Qinghua q LI ,  Narjala BHASKER

    发明人： Xintian E. Lin ,  Jie Gao ,  Qinghua Li ,  Narjala Bhasker

    IPC分类号： G06F3/14 ,  G06F9/44 ,  G09G5/12

    CPC分类号： G06F3/1423 ,  G06F9/452 ,  G09G5/12 ,  G09G2370/022 ,  G09G2370/16 ,  H04M3/567 ,  H04W4/04 ,  H04W4/043 ,  H04W4/16 ,  H04W4/80 ,  H04W8/005 ,  H04W12/06 ,  H04W76/14

    摘要： The present disclosure relates to computer-implemented systems and methods for wireless display discovery. The method may include receiving, by a computer, a selection to detect wireless display devices. The computer may include one or more processors, a radio transceiver, and a microphone. The method may also include identifying, by the radio transceiver, a plurality of wireless display device and transmitting, by the radio transceiver, respective connection requests to the plurality of wireless display devices. Additionally, the method may include transmitting, by the radio transceiver to the wireless display devices, respective requests for inaudible audio signal transmission. The method may also include receiving, by the microphone, a plurality of inaudible audio signals from the wireless display devices. Further still, the method may include determining, based at least in part on the plurality of inaudible audio signals, whether any of the plurality of wireless display devices are in the same room as the computer.

    摘要翻译： 本公开涉及用于无线显示发现的计算机实现的系统和方法。 该方法可以包括由计算机接收用于检测无线显示设备的选择。 计算机可以包括一个或多个处理器，无线电收发器和麦克风。 该方法还可以包括通过无线电收发器识别多个无线显示设备，并且由无线电收发器发送到多个无线显示设备的各自的连接请求。 另外，该方法可以包括通过无线电收发器向无线显示设备发送对于无声音频信号传输的相应请求。 该方法还可以包括由麦克风接收来自无线显示设备的多个听不见的音频信号。 此外，该方法可以包括至少部分地基于多个听不到的音频信号确定多个无线显示设备中的任何一个是否在与计算机相同的房间中。

    Techniques using differential precoding for highly correlated channels in wireless networks
    7.
    发明授权
    Techniques using differential precoding for highly correlated channels in wireless networks 有权
    使用差分预编码技术在无线网络中高度相关的信道

    公开(公告)号：US08873417B2

    公开(公告)日：2014-10-28

    申请号：US13591613

    申请日：2012-08-22

    申请人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li ,  Xintian E. Lin ,  Yang-Seok Choi

    发明人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li ,  Xintian E. Lin ,  Yang-Seok Choi

    IPC分类号： G01R31/08 ,  H04B7/04 ,  H04B7/06

    CPC分类号： H04B7/0478 ,  H04B7/0465 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0641

    摘要： An embodiment of the present invention provides a method of using differential precoding feedback for correlated channels, comprising, transmitting by a mobile station (MS) as feedback an index angle for a differential discrete Fourier transform (DFT) codeword corresponding to a shift of a dominant beam represented by a base codeword, where the feedback corresponds to a precoding vector V(t)=Q({circumflex over (θ)}) for index angle {circumflex over (θ)}, where Q ⁡ ( θ ^ ) = [ 1 ⅇ j ⁢ ⁢ 2 ⁢ ⁢ π ⁢ ⁢ m / 32 ⅇ j ⁢ ⁢ 4 ⁢ ⁢ π ⁢ ⁢ m / 32 ⅇ j ⁢ ⁢ 6 ⁢ ⁢ π ⁢ ⁢ m / 32 ] and m=−16 cos({circumflex over (θ)}).

    摘要翻译： 本发明的一个实施例提供了一种使用用于相关信道的差分预编码反馈的方法，包括：由移动台（MS）作为对应于主导的移位的差分离散付里叶变换（DFT）码字的索引角的反馈， 由基本码字表示的波束，其中反馈对应于用于索引角度（（θ））的预编码矢量V（t）= Q（{回旋（））），其中Q⁡（＆Thetas; ^ ）= [1ⅇj⁢2⁢＆pgr; ⁢m / 32ⅇj⁢4⁢＆pgr; 嗯m / 32ⅇj⁢6⁢＆pgr; ⁢m / 32]，m = -16 cos（{circum lex lex;;;;;））））}）

    Downlink transmit beamforming
    9.
    发明授权
    Downlink transmit beamforming 有权
    下行链路发射波束成形

    公开(公告)号：US08660105B2

    公开(公告)日：2014-02-25

    申请号：US13405535

    申请日：2012-02-27

    申请人： Qinghua Li ,  Xintian E. Lin

    发明人： Qinghua Li ,  Xintian E. Lin

    IPC分类号： H04W88/06

    CPC分类号： H04B7/0413 ,  H04B7/0617 ,  H04B7/0643 ,  H04L1/0681

    摘要： A wireless network access point can operate as a closed loop MIMO device when communicating with a station that is operating as an open loop MIMO device. Transmit/receive chains in the access point are calibrated to support aggregate channel reciprocity.

    摘要翻译： 当与作为开环MIMO设备操作的站通信时，无线网络接入点可以作为闭环MIMO设备操作。 校准接入点中的发送/接收链以支持聚合信道互易。