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    • 9. 发明授权
    • Apparatus and method for determining coefficient of an equalizer
    • 用于确定均衡器系数的装置和方法
    • US07792184B2
    • 2010-09-07
    • US10423234
    • 2003-04-24
    • John E. SmeeHaitao Zhang
    • John E. SmeeHaitao Zhang
    • H04B13/02
    • H04L25/0314H04L25/03159
    • The linear equalizer (LE) coefficients for code-division-multiplexed (CDM) pilot systems can be determined based upon frequency-domain calculations involving channel impulse responses. A channel impulse response can be formed at the mobile terminal by suitably filtering and despreading the received baseband signal with respect to the pilot Walsh channel. The channel frequency response is then determined based on the fast Fourier transform (FFT) of the channel impulse response. Frequency-domain equalizer coefficients can be determined from the channel frequency response. The frequency-domain equalizer coefficient can be utilized to determine time-domain equalizer coefficients to implement the equalizer in time domain, or be utilized to implement the equalizer in frequency domain.
    • 用于码分复用(CDM)导频系统的线性均衡器(LE)系数可以基于涉及信道脉冲响应的频域计算来确定。 通过适当地对接收的基带信号相对于导频沃尔什信道进行滤波和解扩,可以在移动终端形成信道脉冲响应。 然后,基于信道脉冲响应的快速傅里叶变换(FFT)来确定信道频率响应。 可以从信道频率响应确定频域均衡器系数。 可以利用频域均衡器系数来确定时域均衡器系数以在时域中实现均衡器,或者用于在频域中实现均衡器。