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    • 2. 发明授权
    • Receiving apparatus and synchronising method for a digital telecommunication system
    • 数字电信系统的接收装置和同步方法
    • US07424079B2
    • 2008-09-09
    • US11498080
    • 2006-08-03
    • Ralf BohnkeThomas DolleTino Konschak
    • Ralf BohnkeThomas DolleTino Konschak
    • H04L25/38
    • H04L7/041H04L7/046
    • A receiving apparatus for receiving signals in a digital telecommunication system and a synchronizing method for synchronizing the receiving apparatus. The receiving apparatus includes a receiver for receiving a reference symbol having at least two repetition patterns. One of the, repetition patterns is phase-shifted in relation to the other. The receiving apparatus is synchronized in the digital telecommunication system using the received reference symbol. The synchronization includes a cross correlation of at least one of two repetition patterns within a cross correlation window having a predetermined length. In this manner, the performance and the accuracy of a cross correlation peak detection can be enhanced for improved synchronization.
    • 一种用于在数字电信系统中接收信号的接收装置和用于同步接收装置的同步方法。 接收装置包括用于接收具有至少两个重复模式的参考符号的接收器。 其中一个重复模式相对于另一个相移。 接收设备在数字电信系统中使用接收的参考符号进行同步。 同步包括具有预定长度的互相关窗中的两个重复图案中的至少一个的互相关。 以这种方式,可以增强互相关峰值检测的性能和精度,以改善同步。
    • 3. 发明申请
    • Receiving apparatus and synchronising method for a digital telecommunication system
    • 数字电信系统的接收装置和同步方法
    • US20060269008A1
    • 2006-11-30
    • US11498080
    • 2006-08-03
    • Ralf BohnkeThomas DolleTino Konschak
    • Ralf BohnkeThomas DolleTino Konschak
    • H04K1/10H04L27/06H04L7/00
    • H04L7/041H04L7/046
    • A receiving apparatus (1) for receiving signals in a digital telecommunication system and a synchronizing method for synchronizing the receiving apparatus (1). The receiving apparatus (1) includes a receiver (2, 3) for receiving a reference symbol having at least two repetition patterns. One of the, repetition patterns is phase-shifted in relation to the other. The receiving apparatus (1) is synchronized in the digital telecommunication system using the received reference symbol. The synchronization includes a cross correlation of at least one of two repetition patterns within a cross correlation window having a predetermined length. In this manner, the performance and the accuracy of a cross correlation peak detection can be enhanced for improved synchronization.
    • 一种用于在数字电信系统中接收信号的接收装置(1)和用于同步接收装置(1)的同步方法。 接收装置(1)包括用于接收具有至少两个重复模式的参考符号的接收器(2,3)。 其中一个重复模式相对于另一个相移。 接收设备(1)在数字电信系统中使用接收的参考符号进行同步。 同步包括具有预定长度的互相关窗中的两个重复图案中的至少一个的互相关。 以这种方式,可以增强互相关峰值检测的性能和精度,以改善同步。
    • 4. 发明申请
    • Transmitting apparatus and method for a digital telecommunication system
    • 数字电信系统的发射装置和方法
    • US20070036235A1
    • 2007-02-15
    • US11429210
    • 2006-05-08
    • Ralf BohnkeThomas DolleTino Puch
    • Ralf BohnkeThomas DolleTino Puch
    • H04K1/10H04L7/00
    • H04L27/2663H04B1/16H04L7/042
    • The present invention relates to a receiving apparatus (1) for receiving signals in a digital telecommunication system and a synchronising method for synchronising such a receiving apparatus (1). The receiving apparatus (1) comprises receiving means (2, 3) for receiving a reference symbol comprising at least two repetition patterns, whereby one of said at least two repetition patterns is phase-shifted in relation to the other repetition pattern, and synchronising means (5) for synchronising the receiving apparatus (1) in the digital telecommunication system using said received reference symbol. The synchronising means (5) comprises a cross correlation means (16, 24) for cross correlating at least one of said two repetition patterns within a cross correlation window having a predetermined length. Hereby, the performance and the accuracy of a cross correlation peak detection can be enhanced for improved synchronisation.
    • 本发明涉及用于在数字电信系统中接收信号的接收装置(1)和用于同步这种接收装置(1)的同步方法。 接收装置(1)包括接收装置(2,3),用于接收包括至少两个重复模式的参考符号,由此所述至少两个重复模式中的一个相对于另一个重复模式相移,同步装置 (5),用于使用所述接收到的参考符号同步数字电信系统中的接收设备(1)。 同步装置(5)包括互相关装置(16,24),用于在具有预定长度的互相关窗中互相关联所述两个重复图案中的至少一个。 因此,可以增强互相关峰值检测的性能和精度,以改善同步。
    • 5. 发明授权
    • Synchronization of digital communication systems
    • 数字通信系统的同步
    • US6160821A
    • 2000-12-12
    • US185022
    • 1998-11-03
    • Thomas DolleTino Konschak
    • Thomas DolleTino Konschak
    • H04L27/00H04J11/00H04L7/00H04L7/04H04L27/26H04J3/06
    • H04L27/2662H04L7/041H04L27/2602H04L27/2657H04L27/2675
    • According to the present invention a system and a method for synchronising digital communication systems is proposed. Thereby a reference symbol RS consisting of a sequence of a plurality of synchronisation patterns SP and followed by data symbols, which are both modulated (13) on a RF-frequency is provided. The received reference symbol (RS) is correlated with a delayed version of itself and the correlation peak is identified giving the position and complex correlation result that can be used for the timing and frequency synchronisation of a digital communication system. According to the present invention the phase of the last and/or the first of the plurality of synchronisation patterns SP of said reference symbol RS (or a part or a multiple thereof) is phase shifted, e.g. by 180.degree., before the transmission step. According to the present invention therefore the effects of random contribution of adjacent data symbols of the reference symbol to a correlation calculation based on a synchronisation algorithm can be entirely eliminated. Through the inversion of the last synchronisation pattern and the reference symbol the correlation peak, which is used to determine the symbol timing, is offset inside the reference symbol. Thus, the precision of the timing error estimation is improved significantly.
    • 根据本发明,提出了一种用于同步数字通信系统的系统和方法。 因此,提供了由RF频率调制(13)的多个同步模式SP的序列和后面跟着数据符号组成的参考符号RS。 接收到的参考符号(RS)与其自身的延迟版本相关,并且识别相关峰,给出可用于数字通信系统的定时和频率同步的位置和复相关结果。 根据本发明,所述参考符号RS(或其一部分或多个)的多个同步模式SP中的最后和/或第一个同步模式SP的相位是相位偏移的。 在180度之前,在传输步骤之前。 因此,根据本发明,可以完全消除参考符号的相邻数据符号的随机贡献对基于同步算法的相关计算的影响。 通过最后同步模式和参考符号的反转,用于确定符号定时的相关峰在参考符号内部被偏移。 因此,定时误差估计的精度显着提高。