公开(公告)号：WO2004036861A3

公开(公告)日：2004-06-17

申请号：PCT/BE0300178

申请日：2003-10-21

Applicant: ST MICROELECTRONICS NV ,  VANDERPERREN YVES ,  DEHAENE WIM

Inventor： VANDERPERREN YVES ,  DEHAENE WIM

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2675

Abstract: A receiver is disclosed for time synchronization and frequency offset correction using a training sequence with a periodic structure (like e.g.in HIPERLAN/2,DVD or DAB). To this purpose the auto-correlation of the received signal is calculated. Coarse time synchronization is performed by analysing the amplitude and/or phase of the auto-correlation signal, e.g. to detect peaks or some characteristic jumps in the amplitude or the phase curve. Fine time synchronization is performed by cross-correlation signal. If the difference of the results of coarse and fine time synchronization exceeds a certain threshold, a 'synchronization failure'' signal is outputted. The frequency offset correction is carried out in two steps: first from the auto-correlation of short training sequence the sign (direction) of the frequency offset is determined, then from the auto-correlation of long training sequence the accurate frequency offset is obtained.

Abstract translation: 公开了使用具有周期性结构的训练序列（例如HIPERLAN / 2，DVD或DAB）的时间同步和频率偏移校正的接收机。 为此，计算接收信号的自相关。 通过分析自相关信号的幅度和/或相位来执行粗时间同步，例如， 以检测振幅或相位曲线中的峰值或某些特征跳跃。 通过互相关信号执行精细时间同步。 如果粗略和精细时间同步的结果的差异超过某个阈值，则输出“同步失败”信号。 频偏校正分两步进行：首先从短训练序列的自相关中，确定频偏的符号​​（方向），然后从长训练序列的自相关中获得准确的频偏。

公开(公告)号：AU2003278000A1

公开(公告)日：2004-05-04

申请号：AU2003278000

申请日：2003-10-21

Applicant: ST MICROELECTRONICS NV

Inventor： VANDERPERREN YVES ,  DEHAENE WIM

IPC: H04L27/26

Abstract: The receiver has a unit (17) for compensating a received signal with a frequency offset from a frequency offset estimation unit to form a compensated received signal where the frequency offset estimation unit includes a part for determining phase shift. A determining unit obtains a timing reference for the received signal by cross-correlation (19) of the compensated received signal with a known training sequence. Independent claims are also included for the following: (a) an orthogonal frequency division multiplex (OFDM) telecommunication system including the receiver (b) a method for processing a received signal including a carrier modulated with a known training sequence (c) a method for obtaining timing reference from a received signal including a carrier modulated with a known training sequence.

公开(公告)号：DE60326651D1

公开(公告)日：2009-04-23

申请号：DE60326651

申请日：2003-10-21

Applicant: ST MICROELECTRONICS NV

Inventor： VANDERPERREN YVES ,  DEHAENE WIM

IPC: H04L27/26

Abstract: The receiver has a unit (17) for compensating a received signal with a frequency offset from a frequency offset estimation unit to form a compensated received signal where the frequency offset estimation unit includes a part for determining phase shift. A determining unit obtains a timing reference for the received signal by cross-correlation (19) of the compensated received signal with a known training sequence. Independent claims are also included for the following: (a) an orthogonal frequency division multiplex (OFDM) telecommunication system including the receiver (b) a method for processing a received signal including a carrier modulated with a known training sequence (c) a method for obtaining timing reference from a received signal including a carrier modulated with a known training sequence.