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    • 6. 发明申请
    • METHOD AND DEVICE FOR ESTIMATING CARRIER FREQUENCY OFFSET
    • 用于估计载波频率偏移的方法和装置
    • WO2011093798A1
    • 2011-08-04
    • PCT/SG2011/000036
    • 2011-01-26
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHFUNG, Ho Wang, PatrickSUN, SumeiHO, Chin, Keong
    • FUNG, Ho Wang, PatrickSUN, SumeiHO, Chin, Keong
    • H04W88/04H04B7/14H04J11/00H04L27/26
    • H04L27/2657H04B7/155H04L27/262H04L27/2621H04L27/2692H04W24/00H04W56/0035H04W72/00H04W88/04
    • A method (500) for estimating a carrier frequency offset in a communication system (100) is disclosed herein. In a described embodiment, the communications system (100) comprises a first communications device (120), a second communications device (122) and a relay (110). The method (500) comprises rotating (530) at the first communications device (120) a first generated block of signals by a first plurality of different rotation angles to form a corresponding first set of preambles (410), rotating (530) at the second communications device (122) a second generated block of signals by a second plurality of different rotation angles to form corresponding second set of preambles (420), transmitting (540) from each of the first and second communications devices (120,122) the respective first and second sets of preambles (410, 420) as time domain signals to the relay (110), receiving at the first communications device (120) a retransmitted time domain signal from the relay (110), the retransmitted signal being a combination of the first and second sets of preambles (410, 420) and estimating (550) the channel frequency offset based on the received retransmitted time domain signal. A device and an integrated circuit for estimating a carrier frequency offset in a communication system are also disclosed.
    • 本文公开了一种用于估计通信系统(100)中的载波频率偏移的方法(500)。 在所描述的实施例中,通信系统(100)包括第一通信设备(120),第二通信设备(122)和中继站(110)。 方法(500)包括在第一通信设备(120)处旋转(530)第一生成的信号块,其具有第一多个不同的旋转角度,以形成对应的第一组前导码(410),在第 第二通信设备(122)通过第二多个不同旋转角度的第二生成的信号块形成相应的第二组前导码(420),从第一和第二通信设备(120,122)中的每一个传输(540)相应的第一 和作为时域信号的第二组前导码(410,420)发送给中继器(110),在第一通信设备(120)接收来自中继器(110)的重发的时域信号,重发信号是 第一和第二组前导码(410,420),并且基于所接收的重传的时域信号估计(550)信道频率偏移。 还公开了一种用于估计通信系统中的载波频率偏移的装置和集成电路。