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    • 16. 发明公开
    • APPARATUS AND METHOD OF ON-CHANNEL REPEATER
    • 设备和方法的信道重发器
    • EP1875633A1
    • 2008-01-09
    • EP05822465.0
    • 2005-12-29
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    • PARK, Sung-IkLEE, Yong-TaeEUM, Ho-MinKIM, Heung-MookSEO, Jae-HyunKIM, Seung-Won, 105-202 Kukhwa Dongseong Apt.LEE, Soo-In, 106-606 Clover Apt.
    • H04B7/14
    • H04B7/155H04B7/15564
    • Provided are an on-channel repeater and a method thereof. The on-channel repeater can extract reception channel information from signals transmitted from a main transmitter or another repeater, compensate for channel distortion caused on a transmission channel by inversely reflecting the extracted reception channel information to the received signals, and transmit the channel-distortion compensated signals through the same channel as a reception channel, and a method thereof. The on-channel repeater includes: a receiver for receiving RF signals transmitted from outside; a down-converter for down- converting the received RF signals into signals of a desired band; a channel-estimator for estimating an inverse value of a reception channel based on the down- converted signals; an adaptation filter for compensating for channel distortion by using a filter having the inverse value of the estimated reception channel; an up- converter for up-converting the channel distortion- compensated signals into RF signals; and a transmitter for transmitting the up-converted RF signals.
    • 提供了一种同频转发器及其方法。 同频转发器可以从主发射机或另一个中继器发送的信号中提取接收信道信息,通过将提取的接收信道信息反向反射到接收信号来补偿在传输信道上引起的信道失真,并且发送经补偿的信道失真 通过与接收信道相同的信道信号,以及其方法。 同频转发器包括:用于接收从外部发射的RF信号的接收器; 下变频器,用于将接收到的RF信号下变频为期望频带的信号; 信道估计器,用于基于下变频信号来估计接收信道的倒数值; 自适应滤波器,用于通过使用具有估计接收信道的倒数值的滤波器来补偿信道失真; 上变频器,用于将信道失真补偿信号上变频为RF信号; 以及发射器,用于发射上变频的RF信号。
    • 20. 发明公开
    • ON-CHANNEL REPEATER AND ON-CHANNEL REPEATING METHOD
    • 通道重复器和通道重复方法
    • EP2156572A1
    • 2010-02-24
    • EP07833951.2
    • 2007-11-09
    • Electronics and Telecommunications Research Institute
    • PARK, Sung-IkKIM, Heung-MookSEO, Jae-HyunEUM, Ho-MinLEE, Jae-YoungLEE, Yong-TaeLIM, Jong-SooLEE, Soo-In
    • H04B7/14
    • H04B7/15585
    • Provided are an on- channel repeater and an on- channel repeating method. The on-channel repeater includes : a receiving means for receiving a Radio Frequency (RF) signal; a subtracting means for subtracting a replica of feedback signals from the signal received by the receiving means; a replica generating means for calculating the replica based on the signal acquired from the subtraction in the subtracting means and feeding back the replica to the subtracting means; an inverse channel estimating means for estimating inverse of a reception channel based on the signal acquired from the subtraction in the subtracting means and generating filter tab coefficients; a first adaptive filtering means for compensating for channel distortion of the signal subtracted by the subtracting means based on the filter tab coefficients generated in the inverse channel estimating means; and a transmitting means for converting a signal whose channel distortion is compensated by the first adaptive filtering means into an RF signal and performing radio transmission.
    • 提供了同频转发器和同频重复方法。 同频转发器包括:接收装置,用于接收射频(RF)信号; 减法装置,用于从由接收装置接收的信号中减去反馈信号的复制品; 复制品生成装置,用于基于在减法装置中从减法获得的信号计算复制品,并将复制品反馈给减法装置; 逆信道估计装置,用于根据减法装置中的减法获得的信号估计接收信道的倒数,并产生滤波器标签系数; 第一自适应滤波装置,用于基于在反向信道估计装置中产生的滤波器标签系数来补偿由减法装置减去的信号的信道失真; 以及发射装置,用于将其信道失真由第一自适应滤波装置补偿的信号转换为RF信号并执行无线电发射。