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    • 7. 发明申请
    • Method and apparatus for automatic frequency correction
    • 自动频率校正方法和装置
    • US20060233153A1
    • 2006-10-19
    • US11326043
    • 2006-01-05
    • Jian ChengJingdong Lin
    • Jian ChengJingdong Lin
    • H04J3/06
    • H04L27/2271H04L2027/0028H04L2027/0038H04L2027/0061H04L2027/0065H04L2027/0075
    • A technique is provided for automatic frequency offset correction in a wireless communication system. After demodulating and decoding a received signal in a receiver, channel estimation is also performed. The technique further includes re-encoding and re-modulating the decoded and demodulated signal with a coding and modulation scheme different from the received signal. The signal is reconstructed signal on the basis of the re-encoded and re-modulated signal and estimated channel characteristics. A frequency error is estimated based on the reconstructed signal and the original received signal. A threshold for a comparator is determined on the basis of the estimated offset amount determined by the comparison threshold and the estimated frequency offset.
    • 提供了一种用于无线通信系统中的自动频偏校正的技术。 在对接收机中的接收信号进行解调和解码之后,还执行信道估计。 该技术还包括用与接收信号不同的编码和调制方案对解码和解调信号进行重新编码和重新调制。 信号是基于重新编码和重新调制的信号和估计的信道特性的重构信号。 基于重构信号和原始接收信号估计频率误差。 基于由比较阈值和估计频率偏移确定的估计偏移量来确定比较器的阈值。
    • 8. 发明授权
    • Method and apparatus for automatic frequency correction
    • 自动频率校正方法和装置
    • US07725090B2
    • 2010-05-25
    • US11326043
    • 2006-01-05
    • Jian ChengJingdong Lin
    • Jian ChengJingdong Lin
    • H04B1/18
    • H04L27/2271H04L2027/0028H04L2027/0038H04L2027/0061H04L2027/0065H04L2027/0075
    • A technique is provided for automatic frequency offset correction in a wireless communication system. After demodulating and decoding a received signal in a receiver, channel estimation is also performed. The technique further includes re-encoding and re-modulating the decoded and demodulated signal with a coding and modulation scheme different from the received signal. The signal is reconstructed signal on the basis of the re-encoded and re-modulated signal and estimated channel characteristics. A frequency error is estimated based on the reconstructed signal and the original received signal. A threshold for a comparator is determined on the basis of the estimated offset amount determined by the comparison threshold and the estimated frequency offset.
    • 提供了一种用于无线通信系统中的自动频偏校正的技术。 在对接收机中的接收信号进行解调和解码之后,还执行信道估计。 该技术还包括用与接收信号不同的编码和调制方案对解码和解调信号进行重新编码和重新调制。 信号是基于重新编码和重新调制的信号和估计的信道特性的重构信号。 基于重构信号和原始接收信号估计频率误差。 基于由比较阈值和估计频率偏移确定的估计偏移量来确定比较器的阈值。