WIRELESS COMMUNICATION APPARATUS FOR CHANGING DIRECTIONAL PATTERN OF VARIABLE DIRECTIVITY ANTENNA ACCORDING TO VARIATIONS IN RADIO WAVE PROPAGATION ENVIROMENT
    3.
    发明申请
    WIRELESS COMMUNICATION APPARATUS FOR CHANGING DIRECTIONAL PATTERN OF VARIABLE DIRECTIVITY ANTENNA ACCORDING TO VARIATIONS IN RADIO WAVE PROPAGATION ENVIROMENT 审中-公开
    无线通信装置根据无线电波传播环境中的变化方向改变可变方向性天线的方向图

    公开(公告)号:US20110065391A1

    公开(公告)日:2011-03-17

    申请号:US12993980

    申请日:2009-05-27

    IPC分类号: H04B15/00 H04B1/00

    CPC分类号: H04B7/0615 H04B17/318

    摘要: When a variable directivity antenna apparatus is controlled to form an initial composite directional pattern, RSSI is measured, and a weak electric field group or an intense electric field group is selected based on the measured RSSI. When the variable directivity antenna apparatus is controlled to form the composite directional patterns included in the selected composite directional pattern group, PER for each of the composite directional patterns is measured, and one composite directional pattern is selected from among the composite directional patterns included in the selected composite directional pattern group based on the measured PER, so that the variable directivity antenna apparatus is controlled to form the selected composite directional pattern.

    摘要翻译: 当可变方向性天线装置被控制以形成初始复合方向图时,测量RSSI,并且基于所测量的RSSI选择弱电场组或强电场组。 当可变方向性天线装置被控制以形成包括在所选择的复合方向图模式组中的复合方向图时,测量每个复合方向图的PER,并从包括在所述复合方向图中的复合方向图中选择一个复合方向图 基于所测量的PER选择的复合方向图组,使得可变方向性天线装置被控制以形成所选择的复合方向图。

    Wireless communications apparatus and wireless communications method
    4.
    发明授权
    Wireless communications apparatus and wireless communications method 有权
    无线通信装置和无线通信方法

    公开(公告)号:US08843067B2

    公开(公告)日:2014-09-23

    申请号:US13129204

    申请日:2009-11-17

    IPC分类号: H04B7/00 H04N5/782 H04N5/765

    CPC分类号: H04N5/782 H04N5/765

    摘要: A wireless communications apparatus (1) in the present invention transmits, via wireless communications, data recorded on a memory unit (13) to a recording apparatus (2). The wireless communications apparatus (1) includes: a communication area determining unit (19) determining whether or not the wireless communications apparatus (1) is in a communication area having a threshold value equal to MIDDLE or higher; a stillness detecting unit (15) detecting whether or not the wireless communications apparatus (1) remains still; and a wireless communications unit (17) starting to transmit, via the wireless communications, the data recorded on the memory unit (13) to the recording apparatus (2) in the case where (i) the communication area determining unit (19) determines that the wireless communications apparatus (1) is in the communication area having the threshold value equal to MIDDLE or higher, and (ii) the stillness detecting unit (15) detects that the wireless communications apparatus (1) remains still.

    摘要翻译: 本发明的无线通信装置(1)经由无线通信将记录在存储器单元(13)上的数据发送到记录装置(2)。 无线通信装置(1)包括:通信区域确定单元,确定无线通信装置(1)是否处于具有等于MIDDLE或更高的阈值的通信区域; 检测无线通信装置(1)是否保持静止的静止检测单元(15) 以及在通信区域确定单元(19)确定的情况下,无线通信单元(17)开始经由无线通信将记录在存储器单元(13)上的数据传送到记录装置(2) 无线通信装置(1)处于阈值等于MIDDLE以上的通信区域中,(ii)静止检测部(15)检测出无线通信装置(1)保持静止。

    Variable directivity antenna apparatus provided with antenna elements and at least one parasitic element connected to ground via controlled switch
    9.
    发明授权
    Variable directivity antenna apparatus provided with antenna elements and at least one parasitic element connected to ground via controlled switch 有权
    具有天线元件的可变方向性天线装置和经由受控开关连接到地的至少一个寄生元件

    公开(公告)号:US08525748B2

    公开(公告)日:2013-09-03

    申请号:US13002570

    申请日:2009-07-08

    IPC分类号: H01Q19/00

    CPC分类号: H01Q21/065

    摘要: A variable directivity antenna apparatus is configured to include a parasitic element, a plurality of antenna elements each provided to be away from the parasitic element by an electrical length of a quarter-wavelength, and a PIN diode connected to the parasitic element and changing over whether or not to ground the parasitic element. A radiation pattern from the variable directivity antenna apparatus is changed by outputting a control signal for changing over whether or not the parasitic element operates as a parasitic element by selectively turning on or off the PIN diode.

    摘要翻译: 可变方向性天线装置被配置为包括寄生元件,多个天线元件,每个天线元件设置为远离寄生元件四分之一波长的电长度,以及连接到寄生元件的PIN二极管,并且改变是否 或不接地寄生元件。 通过输出用于通过选择性地导通或关闭PIN二极管而使寄生元件是否作为寄生元件工作的控制信号,来改变来自可变方向性天线装置的辐射图。

    Wireless communication system having MIMO communication capability and having multiple receiving antennas to be selected
    10.
    发明授权
    Wireless communication system having MIMO communication capability and having multiple receiving antennas to be selected 有权
    具有MIMO通信能力并具有多个待选择的接收天线的无线通信系统

    公开(公告)号:US08284718B2

    公开(公告)日:2012-10-09

    申请号:US12743296

    申请日:2008-11-27

    IPC分类号: H04W4/00 H04B7/02 H04B7/00

    摘要: Before start of streaming, a server apparatus obtains from client apparatuses their respective numbers of antenna combinations, determines a training time t1 according to the maximum of the numbers of antenna combinations, and notifies the client apparatuses of the training time t1. Each client apparatus determines a training time t2 required to estimate transmission path conditions for one antenna combination, based on the training time t1. The server apparatus transmits a training signal during the training time t1. Each client apparatus estimates transmission path conditions using the training signal during the training time t2 for each antenna combination, and selects and sets an antenna combination based on the estimated transmission path conditions.

    摘要翻译: 在开始流式传输之前,服务器装置从客户端装置获得它们各自的天线组合数,根据天线组合的数量的最大值来确定训练时间t1,并向客户机通知训练时间t1。 每个客户端装置基于训练时间t1确定估计一个天线组合的传输路径条件所需的训练时间t2。 服务器装置在训练时间t1期间发送训练信号。 每个客户端设备在每个天线组合的训练时间t2期间使用训练信号来估计传输路径条件,并且基于估计的传输路径条件来选择和设置天线组合。