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    • 7. 发明申请
    • Enhanced physical layer repeater for operation in WiMAX systems
    • 用于在WiMAX系统中运行的增强型物理层中继器
    • US20070268846A1
    • 2007-11-22
    • US11730361
    • 2007-03-30
    • James ProctorKenneth GaineyJames Otto
    • James ProctorKenneth GaineyJames Otto
    • H04B7/14
    • H04B7/15557H04B7/15535
    • A method and repeater are described for repeating using a time division duplex (TDD) radio protocol. A signal is transmitted from a first station to a second station using a downlink and an uplink. The signal can be detected on the uplink or the downlink. The repeater can synchronize to time intervals associated with the detected signal that are measured during an observation period. The signal can be retransmitted from the second station to the first station if the signal is detected on the uplink and re-transmitted from the first station to the second station if the signal is detected on the downlink. A gain value associated with the downlink can be used to establish a gain value associated with the uplink.
    • 描述了用于重复使用时分双工(TDD)无线电协议的方法和中继器。 使用下行链路和上行链路将信号从第一站发送到第二站。 可以在上行链路或下行链路上检测信号。 中继器可以与在观察期间测量的检测到的信号相关联的时间间隔同步。 如果在下行链路上检测到信号,则如果在上行链路上检测到信号并从第一站重新发送到第二站,则可以将信号从第二站重新发送到第一站。 可以使用与下行链路相关联的增益值来建立与上行链路相关联的增益值。
    • 10. 发明申请
    • Adaptive antenna/combiner for reception of satellite signals and associated methods
    • 用于接收卫星信号和相关方法的自适应天线/组合器
    • US20060202890A1
    • 2006-09-14
    • US11340915
    • 2006-01-27
    • James Otto
    • James Otto
    • H01Q21/24H04B1/06H04B7/00
    • H04B1/18H01Q21/24H04B7/0817H04B7/0868H04B7/10
    • A communications device includes horizontally and vertically polarized antenna elements. A switching network is coupled to the antenna elements for switching signals received therefrom between first and second switching configurations. A combiner is coupled to the switching network for generating a first combined output signal having a first phase relationship based upon the first switching configuration, and for generating a second combined output signal having a second phase relationship based upon the second switching configuration. A receiver is coupled to the combiner and determines a respective signal quality of the first and second combined output signals. The receiver provides feedback to the switching network for selecting the first or second switching configuration based upon the determined signal qualities.
    • 通信设备包括水平和垂直极化的天线元件。 交换网络耦合到天线元件,用于在第一和第二切换配置之间切换从其接收的信号。 组合器耦合到开关网络,用于基于第一开关配置产生具有第一相位关系的第一组合输出信号,并且用于基于第二开关配置产生具有第二相位关系的第二组合输出信号。 接收机耦合到组合器并且确定第一和第二组合输出信号的相应信号质量。 接收机基于所确定的信号质量向交换网络提供反馈以选择第一或第二切换配置。