System and method for determining transmission parameters in an orthogonal frequency-division multiplexed data stream
    1.
    发明授权
    System and method for determining transmission parameters in an orthogonal frequency-division multiplexed data stream 有权
    用于确定正交频分复用数据流中的传输参数的系统和方法

    公开(公告)号:US07903750B2

    公开(公告)日:2011-03-08

    申请号:US11853457

    申请日:2007-09-11

    IPC分类号: H04K1/10

    摘要: A system for identifying transmission parameters of an OFDM signal transmitted according to a transmitter clock includes a first correlator to receive and correlate samples of the signal sampled according to a receiver clock and provide a first metric indicative of whether the signal has a first transmission mode, a plurality of additional correlators, operable in parallel with the first correlator, to receive and correlate the samples of the signal sampled according to the receiver clock and provide a plurality of additional metrics indicative of whether the signal has a second transmission mode and whether the receiver clock is aligned with or displaced by at least one sample over one OFDM symbol relative to the transmitter clock, and a processor. The processor receives the metrics, and determines whether the signal has the first or second transmission mode and whether the receiver clock is aligned or displaced by the at least one sample relative to the transmitter clock.

    摘要翻译: 用于识别根据发射机时钟发射的OFDM信号的传输参数的系统包括:第一相关器,用于接收和关联根据接收机时钟采样的信号的样本,并提供指示信号是否具有第一传输模式的第一度量; 多个附加相关器,其可与第一相关器并行操作,以接收和关联根据接收器时钟采样的信号的样本,并提供指示信号是否具有第二传输模式的多个附加度量以及接收器 时钟与相对于发射机时钟的一个OFDM符号上的至少一个采样对准或移位,以及处理器。 处理器接收度量,并且确定信号是否具有第一或第二传输模式以及接收机时钟是否相对于发射机时钟被至少一个采样对准或位移。

    SYSTEM AND METHOD FOR DETERMINING TRANSMISSION PARAMETERS IN AN ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXED DATA STREAM
    2.
    发明申请
    SYSTEM AND METHOD FOR DETERMINING TRANSMISSION PARAMETERS IN AN ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXED DATA STREAM 有权
    用于确定正交频分复用数据流中传输参数的系统和方法

    公开(公告)号:US20090067515A1

    公开(公告)日:2009-03-12

    申请号:US11853457

    申请日:2007-09-11

    IPC分类号: H04L27/28

    摘要: A system for identifying transmission parameters of an OFDM signal transmitted according to a transmitter clock includes a first correlator to receive and correlate samples of the signal sampled according to a receiver clock and provide a first metric indicative of whether the signal has a first transmission mode, a plurality of additional correlators, operable in parallel with the first correlator, to receive and correlate the samples of the signal sampled according to the receiver clock and provide a plurality of additional metrics indicative of whether the signal has a second transmission mode and whether the receiver clock is aligned with or displaced by at least one sample over one OFDM symbol relative to the transmitter clock, and a processor. The processor receives the metrics, and determines whether the signal has the first or second transmission mode and whether the receiver clock is aligned or displaced by the at least one sample relative to the transmitter clock.

    摘要翻译: 用于识别根据发射机时钟发射的OFDM信号的传输参数的系统包括:第一相关器,用于接收和关联根据接收机时钟采样的信号的样本,并提供指示信号是否具有第一传输模式的第一度量; 多个附加相关器,其可与第一相关器并行操作,以接收和关联根据接收器时钟采样的信号的样本,并提供指示信号是否具有第二传输模式的多个附加度量以及接收器 时钟与相对于发射机时钟的一个OFDM符号上的至少一个采样对准或移位,以及处理器。 处理器接收度量,并且确定信号是否具有第一或第二传输模式以及接收机时钟是否相对于发射机时钟被至少一个采样对准或位移。