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    • 5. 发明申请
    • Normalized auto-correlators
    • 归一化自相关器
    • US20080063094A1
    • 2008-03-13
    • US11516902
    • 2006-09-07
    • Assaf GurevitzUri Perlmutter
    • Assaf GurevitzUri Perlmutter
    • H04K1/10H04L27/06
    • H04L27/2649H04L27/2656H04L27/2676
    • Embodiments of methods and means for auto-correlating wireless signal samples are provided. Such embodiments include local normalization of each signal sample by a root mean square level of samples that preceded it, prior to any summation of the auto-correlation procedure. These auto-correlated signal samples are then used to distinguish downlink from uplink signals present within the signal sample set. Other embodiments include auto-correlation techniques in which no normalization is performed at any time with respect to the summation procedure. Such auto-correlated samples are then scanned to detect a preamble symbol or symbols within the signal samples. Reliable and expeditious wireless communications under WiMAX 802.16e and other protocols can be achieved in accordance with the present embodiments.
    • 提供了用于自动相关无线信号样本的方法和装置的实施例。 这样的实施例包括在自相关过程的任何求和之前,通过其前面的样本的均方根水平来对每个信号样本进行局部归一化。 然后,这些自动相关信号样本用于将下行链路与信号样本集中存在的上行链路信号区分开来。 其他实施例包括其中相对于求和过程在任何时间不进行规范化的自相关技术。 然后扫描这样的自相关样本以检测信号样本内的前导符号或符号。 根据本实施例,可以实现在WiMAX 802.16e和其他协议下的可靠和快速的无线通信。
    • 8. 发明授权
    • Normalized auto-correlators
    • 归一化自相关器
    • US07660371B2
    • 2010-02-09
    • US11516902
    • 2006-09-07
    • Assaf GurevitzUri Perlmutter
    • Assaf GurevitzUri Perlmutter
    • H04L27/06
    • H04L27/2649H04L27/2656H04L27/2676
    • Embodiments of methods and systems for auto-correlating wireless signal samples are provided. Such embodiments include local normalization of each signal sample by a root mean square level of samples that preceded it, prior to any summation of the auto-correlation procedure. These auto-correlated signal samples are then used to distinguish downlink from uplink signals present within the signal sample set. Other embodiments include auto-correlation techniques in which no normalization is performed at any time with respect to the summation procedure. Such auto-correlated samples are then scanned to detect a preamble symbol or symbols within the signal samples. Reliable and expeditious wireless communications under WiMAX 802.16e and other protocols can be achieved in accordance with the present embodiments.
    • 提供了用于自动关联无线信号样本的方法和系统的实施例。 这样的实施例包括在自相关过程的任何求和之前,通过其前面的样本的均方根水平来对每个信号样本进行局部归一化。 然后使用这些自动相关信号样本来区分下行链路与信号样本集中存在的上行链路信号。 其他实施例包括其中相对于求和过程在任何时间不进行规范化的自相关技术。 然后扫描这样的自相关样本以检测信号样本内的前导符号或符号。 根据本实施例,可以实现在WiMAX 802.16e和其他协议下的可靠和快速的无线通信。