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    • 1. 发明授权
    • 무선 송수신기와 전세계 측위 시스템 수신기 간의 무선 이동 단말기에서 기준 주파수 신호를 공유하는 시스템 및 방법
    • 无线接入点和无线接入点系统无线网络无线网络无线网络无线网络无线网络无线网络无线网络无线网络无线网络无线网络无线网络
    • KR100375707B1
    • 2003-03-15
    • KR1020007002451
    • 1998-09-03
    • 에릭슨 인크.
    • 홀튼로버트레이캠프윌리엄오.2세
    • H04B1/40
    • H04B1/3805G01S19/235
    • A wireless mobile terminal for a wireless communication system comprises a wireless transceiver, a global positioning system (GPS) receiver, wherein the wireless transceiver and the GPS receiver share a frequency reference signal. The frequency reference signal can be multiplied by an integer multiple to create a first local oscillator for a signal conversion to an intermediate frequency for signal processing of the GPS signal. In addition, the frequency reference signal can also be divided into a lower frequency to create a second local oscillator for a conversion to a second intermediate frequency. The frequency reference signal can also be divided to create a frequency necessary for other signal processing, such as an analog-to-digital converter sampling signal at the GPS receiver. The frequency reference signal can be taken from different places within the frequency synthesis mechanism of the wireless transceiver. For example, in one embodiment the frequency reference signal is a reference oscillator signal, in another embodiment the frequency reference signal is a radio frequency signal, and in yet another embodiment the frequency reference signal is a radio frequency control signal. Frequency error can be removed from the frequency reference signal by locking to a base station carrier.
    • 用于无线通信系统的无线移动终端包括无线收发器,全球定位系统(GPS)接收器,其中无线收发器和GPS接收器共享频率参考信号。 频率参考信号可以乘以整数倍以创建用于信号转换为用于GPS信号的信号处理的中频的第一本地振荡器。 另外,频率参考信号也可以被分成较低频率以创建用于转换到第二中频的第二本地振荡器。 频率参考信号也可以被划分以产生其他信号处理所需的频率,例如GPS接收器处的模数转换器采样信号。 频率参考信号可以从无线收发器的频率合成机制内的不同位置获得。 例如,在一个实施例中,频率参考信号是参考振荡器信号,在另一个实施例中,频率参考信号是射频信号,在又一个实施例中,频率参考信号是射频控制信号。 通过锁定到基站载波,频率误差可以从频率参考信号中消除。