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    • 8. 发明授权
    • Methods and apparatus for identifying a preamble sequence and for estimating an integer carrier frequency offset
    • 用于识别前导码序列和估计整数载波频率偏移的方法和装置
    • US08532201B2
    • 2013-09-10
    • US11955062
    • 2007-12-12
    • Jong Hyeon ParkJu Won ParkJe Woo Kim
    • Jong Hyeon ParkJu Won ParkJe Woo Kim
    • H04K1/10
    • H04L27/2659
    • In accordance with a method for identifying a preamble sequence and for estimating an integer carrier frequency offset, a signal that comprises a preamble sequence from a set of possible preamble sequences is received. A reduced set of integer carrier frequency offset (CFO) candidates may be determined. Cross-correlation operations may be performed with respect to the received signal and multiple candidate transmitted signals. Each candidate transmitted signal may include one of the set of possible preamble sequences. In addition, each candidate transmitted signal may correspond to one of the reduced set of integer CFO candidates. Multiple correlation values may be determined as a result of the cross-correlation operations. The correlation values may be used to identify the preamble sequence and to estimate the integer CFO.
    • 根据用于识别前导码序列和估计整数载波频率偏移的方法,接收包括来自一组可能的前同步码序列的前置码序列的信号。 可以确定减小的整数载波频率偏移(CFO)候选集。 可以相对于接收信号和多个候选发送信号执行互相关运算。 每个候选发送信号可以包括一组可能的前导码序列之一。 此外,每个候选发送信号可以对应于缩减的整数CFO候选集之一。 作为互相关运算的结果,可以确定多个相关值。 相关值可用于识别前导序列并估计整数CFO。