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    • 4. 发明申请
    • APPARATUS AND METHOD FOR RECEIVING A RANDOM ACCESS CHANNEL FOR A WIRELESS COMMUNICATION SYSTEM
    • 用于接收无线通信系统的随机接入信道的装置和方法
    • US20120155405A1
    • 2012-06-21
    • US13331642
    • 2011-12-20
    • Hwa-Sun YouYon-Woo Yoon
    • Hwa-Sun YouYon-Woo Yoon
    • H04W74/08
    • H04W74/0833
    • An apparatus and a method for receiving a random access signal in a base station of a wireless communication system are provided. The apparatus for receiving the signal includes a control signal extractor for extracting the random access signal from a signal received via an antenna, at least one sequence generator for generating at least one sequence by multiplying the random access signal by at least one candidate sequence, a sequence selector for selecting at least one sequence to detect by differentially correlating sequence components at an adjacent subcarrier location with respect to each sequence, and a detector for detecting the at least one selected sequence.
    • 提供了一种用于在无线通信系统的基站中接收随机接入信号的装置和方法。 用于接收信号的装置包括:控制信号提取器,用于从经由天线接收的信号中提取随机接入信号;至少一个序列发生器,用于通过将随机接入信号乘以至少一个候选序列来产生至少一个序列; 序列选择器,用于选择至少一个序列以通过相对于每个序列在相邻子载波位置处的差分相关序列分量进行检测;以及检测器,用于检测所述至少一个选择的序列。
    • 9. 发明申请
    • APPARATUS AND METHOD FOR ESTIMATING HIGH SPEED FREQUENCY OFFSET IN WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中高速频偏估计的装置及方法
    • US20120087447A1
    • 2012-04-12
    • US13249039
    • 2011-09-29
    • Yon-Woo YoonHee-Won Kang
    • Yon-Woo YoonHee-Won Kang
    • H04L27/06
    • H04L27/2657H04L27/2675
    • An apparatus and method estimate a high speed frequency offset in a wireless communication system. The apparatus includes a correlator, an accumulator, a phase calculator, and a frequency offset coupler. The correlator performs a first correlation and a second correlation based on a first reference signal and a second reference signal. The accumulator accumulates results of the correlations. The phase calculator calculates a first phase and a second phase from the accumulated first correlation value and the accumulated second correlation value. The frequency offset coupler determines whether a frequency offset deviates from a frequency offset estimate range based on a difference between the first phase and the second phase, and compensates the frequency offset according to the determination result. The apparatus can estimate a frequency offset within an error allowable range under an environment where a terminal moves at high speed.
    • 一种装置和方法估计无线通信系统中的高速频率偏移。 该装置包括相关器,累加器,相位计算器和频率偏移耦合器。 相关器基于第一参考信号和第二参考信号执行第一相关和第二相关。 累加器累加相关结果。 相位计算器根据积累的第一相关值和累积的第二相关值计算第一相位和第二相位。 频率偏移耦合器基于第一相位和第二相位之间的差异来确定频率偏移是否偏离频率偏移估计范围,并且根据确定结果来补偿频率偏移。 该设备可以在终端以高速移动的环境下估计误差允许范围内的频率偏移。