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    • 3. 发明授权
    • Scanning methods and apparatus for system acquisition
    • 系统采集扫描方法及装置
    • US08098630B2
    • 2012-01-17
    • US12118143
    • 2008-05-09
    • Anthony William TodAnton Pavlovich
    • Anthony William TodAnton Pavlovich
    • H04J13/00H04B7/216H04W4/00
    • H04L27/0012
    • In one illustrative example, a system acquisition method suitable for use in W-CDMA utilizes a receiver having an automatic frequency control (AFC) circuit. A system acquisition scan is performed over a plurality of candidate frequencies in an RF band. During the system acquisition scan, a pilot signal of a system on one of the candidate frequencies is detected. When information of the system is successfully decoded, and the system is different from a requested system (e.g. not the RPLMN or HPLMN), the pilot signal of the system is assigned as a timing reference in the receiver for one or more remaining candidate frequencies of the system acquisition scan. Therefore, an AFC window time otherwise needed to converge on a remaining candidate frequency is not needed or reduced.
    • 在一个说明性示例中,适用于W-CDMA的系统获取方法利用具有自动频率控制(AFC)电路的接收机。 在RF频带中的多个候选频率上执行系统采集扫描。 在系统采集扫描期间,检测候选频率之一上的系统的导频信号。 当系统的信息被成功解码并且系统与所请求的系统(例如,不是RPLMN或HPLMN)不同时,系统的导频信号被分配为接收机中的一个或多个剩余候选频率的定时参考 系统采集扫描。 因此,不需要或减少另外需要收敛于剩余候选频率的AFC窗口时间。
    • 8. 发明申请
    • Scanning Methods And Apparatus For System Acquisition
    • 扫描方法和系统采集装置
    • US20090279508A1
    • 2009-11-12
    • US12118143
    • 2008-05-09
    • Anthony William TodAnton Pavlovich
    • Anthony William TodAnton Pavlovich
    • H04J13/00
    • H04L27/0012
    • In one illustrative example, a system acquisition method suitable for use in W-CDMA utilizes a receiver having an automatic frequency control (AFC) circuit. A system acquisition scan is performed over a plurality of candidate frequencies in an RF band. During the system acquisition scan, a pilot signal of a system on one of the candidate frequencies is detected. When information of the system is successfully decoded, and the system is different from a requested system (e.g. not the RPLMN or HPLMN), the pilot signal of the system is assigned as a timing reference in the receiver for one or more remaining candidate frequencies of the system acquisition scan. Therefore, an AFC window time otherwise needed to converge on a remaining candidate frequency is not needed or reduced.
    • 在一个说明性示例中,适用于W-CDMA的系统获取方法利用具有自动频率控制(AFC)电路的接收机。 在RF频带中的多个候选频率上执行系统采集扫描。 在系统采集扫描期间,检测候选频率之一上的系统的导频信号。 当系统的信息被成功解码并且系统与所请求的系统(例如,不是RPLMN或HPLMN)不同时,系统的导频信号被分配为接收机中的一个或多个剩余候选频率的定时参考 系统采集扫描。 因此,不需要或减少另外需要收敛于剩余候选频率的AFC窗口时间。