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    • 61. 发明申请
    • METHOD AND APPARATUS FOR ESTIMATING/REMOVING ECHO SIGNAL USING CHANNEL COEFFICIENT PREDICTING TECHNIQUE IN MULTI-CARRIER SYSTEM
    • 在多载波系统中使用信道系数预测技术估计/去除信号信号的方法和装置
    • US20090215390A1
    • 2009-08-27
    • US12391878
    • 2009-02-24
    • Jung-Woo KUJae-Bum KimHee-Won KangHwa-Sun You
    • Jung-Woo KUJae-Bum KimHee-Won KangHwa-Sun You
    • H04B7/165
    • H04B7/15585
    • A method and an apparatus are provided for estimating and removing interference of a signal at a wireless repeater operating in a multi-carrier system. In the method, a current echo channel linear prediction coefficient, which represents a coefficient between a current train signal section and a previous train signal section, is estimated using a current echo channel coefficient estimated in the current train signal section and a previous echo channel coefficient generated in the previous train signal section. A next echo channel coefficient is estimated using the current echo channel coefficient, the previous echo channel coefficient, and the current echo channel linear prediction coefficient. An echo channel coefficient outside a train signal section is estimated using the current echo channel coefficient and the next echo channel coefficient.
    • 提供一种用于估计和去除在多载波系统中操作的无线中继器处的信号的干扰的方法和装置。 在该方法中,使用在当前列车信号部分中估计的当前回波信道系数和先前的回波信道系数来估计表示当前列车信号部分与前一列车信号部分之间的系数的当前回波信道线性预测系数 在先前的列车信号部分生成。 使用当前回波信道系数,先前的回波信道系数和当前回波信道线性预测系数来估计下一个回波信道系数。 使用当前回波信道系数和下一个回波信道系数来估计列车信号部分外的回波信道系数。
    • 70. 发明授权
    • Spread spectrum signal generating device and method in transmitter of mobile communications system
    • 移动通信系统发射机中的扩频信号发生装置及方法
    • US06396868B1
    • 2002-05-28
    • US09135990
    • 1998-08-18
    • Soon-Young YoonJae-Min AhnHee-Won KangYoung-Ky KimJong-Seon NoHong-Yeop SongHa-Bong ChungJe-Woo Kim
    • Soon-Young YoonJae-Min AhnHee-Won KangYoung-Ky KimJong-Seon NoHong-Yeop SongHa-Bong ChungJe-Woo Kim
    • H04B1707
    • H04B1/707H04B2201/70706H04J13/004
    • There are provided spread spectrum signal generating devices and methods in a transmitter of a mobile communications system using a plurality of logical channels. In the spread spectrum signal generating devices, a multiplexer time multiplexes a pilot channel signal and a control channel signal which are output at substantially constant power levels. A first orthogonal encoder orthogonally spreads the output of the multiplexer with an orthogonal code. A second orthogonal encoder orthogonally spreads voice channel data of a variable bit rate with an orthogonal code. A third orthogonal encoder orthogonally spreads packet channel data of a variable bit rate with an orthogonal code. An IQ signal mapper adds the outputs of the first and third orthogonal encoders, outputs the added signal as a first channel signal, and outputs the output of the second orthogonal encoder as a second channel signal. A PN spreader spreads the first and second channel signals with PN codes and outputs a final spectrum spread signal, which exhibits a substantially minimized peak-to-average power ratio.
    • 在使用多个逻辑信道的移动通信系统的发射机中提供扩频信号产生装置和方法。 在扩展频谱信号发生装置中,多路复用器以基本上恒定的功率电平输出导频信道信号和控制信道信号。 第一正交编码器使用正交码对多路复用器的输出进行正交扩展。 第二正交编码器用正交码对可变比特率的语音信道数据进行正交扩频。 第三正交编码器使用正交码对可变比特率的分组信道数据进行正交扩展。 IQ信号映射器将第一和第三正交编码器的输出相加,输出相加的信号作为第一信道信号,并将第二正交编码器的输出作为第二信道信号输出。 PN扩展器用PN码扩展第一和第二信道信号,并输出最终的频谱扩展信号,其表现出基本上最小化的峰均功率比。