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    • 1. 发明申请
    • METHOD AND APPARATUS FOR ESTIMATING SYMBOL TIMING OFFSET IN WIRELESS COMMUNICATION SYSTEM
    • 在无线通信系统中估计符号时序偏移的方法和装置
    • US20090323843A1
    • 2009-12-31
    • US12493904
    • 2009-06-29
    • Joo Yeol YangHee Jin Roh
    • Joo Yeol YangHee Jin Roh
    • H04J11/00H04L27/28
    • H04L27/2662H04L27/2672H04L27/2675
    • A method and an apparatus for estimating a symbol timing offset in an Orthogonal Frequency Division Multiplexing (OFDM) based communication system are provided. A Carrier to Interference Ratio (CIR) of an Reference Signal (RS) is acquired using received pilot signals. The RS CIR includes power information on channel components of the RS. A CIR of a Secondary Synchronization Channel (S-SCH) is acquired using the received pilot signals. The S-SCH CIR includes power information on channel components of the S-SCH. Unnecessary channel components are suppressed from the RS CIR using the S-SCH CIR. Real channel components of the RS remain. An observation window is set having a predetermined duration for windowing the real channel components of the RS. A first arriving channel component is searched for within the observation window. A start point of data is estimated using the first arriving channel component.
    • 提供了一种用于估计基于正交频分复用(OFDM)的通信系统中的符号定时偏移的方法和装置。 使用接收到的导频信号来获取参考信号(RS)的载波干扰比(CIR)。 RS CIR包括关于RS的信道分量的功率信息。 使用接收到的导频信号来获取辅同步信道(S-SCH)的CIR。 S-SCH CIR包括关于S-SCH的信道分量的功率信息。 使用S-SCH CIR从RS CIR抑制不必要的信道分量。 RS的实际通道组件保持不变。 设置具有预定持续时间的观察窗,用于对RS的真实信道分量进行加窗。 在观察窗口内搜索第一个到达的信道分量。 使用第一到达信道分量来估计数据的起始点。
    • 2. 发明授权
    • Method and apparatus for estimating symbol timing offset in wireless communication system
    • 用于估计无线通信系统中符号定时偏移的方法和装置
    • US08243777B2
    • 2012-08-14
    • US12493904
    • 2009-06-29
    • Joo Yeol YangHee Jin Roh
    • Joo Yeol YangHee Jin Roh
    • H04B1/00
    • H04L27/2662H04L27/2672H04L27/2675
    • A method and an apparatus for estimating a symbol timing offset in an Orthogonal Frequency Division Multiplexing (OFDM) based communication system are provided. A Carrier to Interference Ratio (CIR) of an Reference Signal (RS) is acquired using received pilot signals. The RS CIR includes power information on channel components of the RS. A CIR of a Secondary Synchronization Channel (S-SCH) is acquired using the received pilot signals. The S-SCH CIR includes power information on channel components of the S-SCH. Unnecessary channel components are suppressed from the RS CIR using the S-SCH CIR. Real channel components of the RS remain. An observation window is set having a predetermined duration for windowing the real channel components of the RS. A first arriving channel component is searched for within the observation window. A start point of data is estimated using the first arriving channel component.
    • 提供了一种用于估计基于正交频分复用(OFDM)的通信系统中的符号定时偏移的方法和装置。 使用接收到的导频信号来获取参考信号(RS)的载波干扰比(CIR)。 RS CIR包括关于RS的信道分量的功率信息。 使用接收到的导频信号来获取辅同步信道(S-SCH)的CIR。 S-SCH CIR包括关于S-SCH的信道分量的功率信息。 使用S-SCH CIR从RS CIR抑制不必要的信道分量。 RS的实际通道组件保持不变。 设置具有预定持续时间的观察窗,用于对RS的真实信道分量进行加窗。 在观察窗口内搜索第一个到达的信道分量。 使用第一到达信道分量来估计数据的起始点。