ON-CHANNEL REPEATING APPARATUS AND METHOD
    13.
    发明申请
    ON-CHANNEL REPEATING APPARATUS AND METHOD 审中-公开
    通道重复设备和方法

    公开(公告)号:WO2009025496A1

    公开(公告)日:2009-02-26

    申请号:PCT/KR2008/004847

    申请日:2008-08-20

    CPC classification number: H04B7/15585 H04B1/525 H04L25/03019

    Abstract: The present invention relates to an on-channel repeating apparatus and method. An embodiment of the present invention provides an on-channel repeating method including: subtracting a replica of a feedback signal from a signal received from a main transmitter or another repeating apparatus; demodulating and equalizing the signal to remove noise, a multipath signal, and the remaining feedback signal from the signal; inserting identification signal having good correlation properties into the signal; modulating the signal; and transmitting the modulated signal. Another embodiment of the present invention provides an on-channel repeating apparatus including: a unit that converts signals received from a main transmitter or another repeating apparatus into signals in a predetermined band; a unit that generates identification signals having good correlation properties; a unit that generates a replica from the signals in the predetermined band and the identification signal, and then removes a feedback signal; a unit that demodulates a signal from which the feedback signal is removed; a unit that equalizes the demodulated signal to remove noise, a multipath signal, and the remaining feedback signal therefrom; a unit that inserts the identification signal into the equalized signal; and a unit that modulates the signal having the identification signal inserted thereinto and transmits the modulated signal. According to the present invention, the repeating apparatus repeats output signals that have a small time delay and whose distortion is corrected. Therefore, it is possible to improve the utilization of limited frequency sources, and reduce investment in achieving a repeating apparatus.

    Abstract translation: 本发明涉及一种通道重复装置和方法。 本发明的一个实施例提供了一种在线重复方法,包括:从从主发射机或其他中继装置接收的信号中减去反馈信号的副本; 解调和均衡信号以去除噪声,多路径信号和来自信号的剩余反馈信号; 将具有良好相关性的识别信号插入信号中; 调制信号; 并发送调制信号。 本发明的另一实施例提供了一种同信道重复装置,包括:将从主发射机或其他中继装置接收的信号转换为预定频带的信号的单元; 产生具有良好相关性的识别信号的单元; 从预定频带的信号和识别信号产生副本的单元,然后去除反馈信号; 解调反馈信号被去除的信号的单元; 均衡解调信号以去除噪声的单元,多路径信号和其余的反馈信号; 将识别信号插入均衡信号的单元; 以及调制具有插入其中的识别信号的信号并发送调制信号的单元。 根据本发明,中继装置重复具有小的时间延迟并且其失真被校正的输出信号。 因此,可以提高有限的频率源的利用率,减少实现重复装置的投入。

    DIGITAL BROADCASTING SIGNAL TRANSMITTING METHOD AND DEVICE, RECORDING MEDIUM THEREOF, AND RECEIVING DEVICE THEREOF
    19.
    发明申请
    DIGITAL BROADCASTING SIGNAL TRANSMITTING METHOD AND DEVICE, RECORDING MEDIUM THEREOF, AND RECEIVING DEVICE THEREOF 审中-公开
    数字广播信号发送方法及装置,记录介质及其接收装置

    公开(公告)号:WO2009054603A1

    公开(公告)日:2009-04-30

    申请号:PCT/KR2008/004528

    申请日:2008-08-04

    CPC classification number: H04L45/74 H04H20/30

    Abstract: In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services.

    Abstract translation: 在数字广播信号传输系统中,传输帧包括帧体和帧头,并且帧体被划分成频域中的多个子带,并且在时域中被划分为多个符号。 帧头在传输帧的前一部分中提供,并且在时域中以信号发送。 帧体包括多个服务,并且服务分别接收至少一个子带和至少一个符号。 帧头包括关于多个服务的信息,并且关于多个服务的信息包括关于子带和分配服务的符号的信息,关于服务的信道编码级别的信息以及关于数字调制级别的信息 的服务。

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