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    • 10. 发明申请
    • METHOD AND SYSTEM OF BEACON TRANSMISSION AND RECEPTION USING DIRECTIONAL ANTENNAS
    • 使用方向天线的信标传输和接收的方法和系统
    • WO2008075264A2
    • 2008-06-26
    • PCT/IB2007/055069
    • 2007-12-12
    • KONINKLIJKE PHILIPS ELECTRONICS, N.V.SEYEDI-ESFAHANI, Seyed-AlirezaCHOU, Chun-TingCHEN, Richard
    • SEYEDI-ESFAHANI, Seyed-AlirezaCHOU, Chun-TingCHEN, Richard
    • H04Q7/36
    • H04W16/28H04W48/08H04W48/16H04W74/04
    • A system for broadcasting and receiving a beacon signal includes a beacon transmitter (310, 400) and a beacon receiver (320, 500). The beacon transmitter includes a beacon signal generator (410) to generate a beacon signal, and a directional antenna system (420) to selectively transmit the beacon signal in a corresponding one of M different directions during each one of M beacon slots (342) during a beacon period (340) in each of a plurality of superframes (330). The beacon receiver includes a beacon signal detector (510) to receive and detect the beacon signal, and a directional antenna system (520) having an antenna pattern including a main lobe and being adapted to selectively steer the main lobe in a selected one of N different directions during each of a plurality of receiver frames each having a time period substantially equal to a time period of one of the superframes.
    • 用于广播和接收信标信号的系统包括信标发射机(310,400)和信标接收机(320,500)。 信标发射机包括用于生成信标信号的信标信号发生器(410)和定向天线系统(420),用于在M个信标时隙(342)的每一个期间在M个不同方向中的相应一个中选择性地发送信标信号 在多个超帧(330)中的每一个中的信标周期(340)。 信标接收机包括用于接收和检测信标信号的信标信号检测器(510),以及定向天线系统(520),其具有包括主瓣的天线方向图,并且适于选择性地转向所选择的N中的主波瓣 在多个接收机帧中的每一个中,每个具有基本上等于超帧之一的时间段的时间周期的不同方向。