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    • 1. 发明申请
    • METHOD AND DEVICE FOR DETERMINING SMOOTH WINDOW LENGTH IN CHANNEL ESTIMATION
    • 用于确定通道估计中的平滑窗口长度的方法和装置
    • US20120020440A1
    • 2012-01-26
    • US13191151
    • 2011-07-26
    • Gengshi WUFengyu SUNMeng HUAChunling ZHANGShurong JIAO
    • Gengshi WUFengyu SUNMeng HUAChunling ZHANGShurong JIAO
    • H04L27/06
    • H04L25/0228
    • A method and a device for determining a smooth window length in channel estimation is provided. The method includes: obtaining autocorrelation values of pilot signals, where the autocorrelation values include first autocorrelation values and second autocorrelation values, at least two first autocorrelation values exist, and at least one second autocorrelation value exists; determining a speed range according to symbols of the first autocorrelation values or the symbols of the first autocorrelation values and a ratio value between the second autocorrelation value and one of the first autocorrelation values; and determining the smooth window length according to the speed range. Through the method provided in embodiments of the present invention, the problems caused by a fixed smooth window length may be avoided, and this improves system performance.
    • 提供了一种用于确定信道估计中的平滑窗口长度的方法和装置。 该方法包括:获得导频信号的自相关值,其中自相关值包括第一自相关值和第二自相关值,存在至少两个第一自相关值,并且存在至少一个第二自相关值; 根据所述第一自相关值的符号或所述第一自相关值的符号以及所述第二自相关值与所述第一自相关值之一之间的比值确定速度范围; 并根据速度范围确定平滑的窗口长度。 通过本发明实施例提供的方法,可以避免固定平滑窗口长度引起的问题,从而提高系统性能。