公开(公告)号：US20070140319A1

公开(公告)日：2007-06-21

申请号：US11444342

申请日：2006-06-01

申请人： Keun-joo Park ,  Kwanghoon Kim ,  Hyuncheol Park ,  Yusung Lee ,  June-koo Rhee ,  Hyun-chin Kim ,  Joonhyuk Kang ,  Junkyu Lee

发明人： Keun-joo Park ,  Kwanghoon Kim ,  Hyuncheol Park ,  Yusung Lee ,  June-koo Rhee ,  Hyun-chin Kim ,  Joonhyuk Kang ,  Junkyu Lee

IPC分类号： H04B1/00

CPC分类号： H04B1/71632 ,  H04L27/2626

摘要： A method and an apparatus for transmitting a single-band orthogonal frequency division multiplexing (OFDM)-based ultra wideband (UWB) signal over a pipeline carrying a cable television broadcasting signal. The method includes transforming a multimedia signal transmitted from a multimedia device into a wireline UWB signal; transforming the wireline UWB signal into a single-band OFDM signal; and frequency-spreading the single-band OFDM signal according to a transmission rate. Thus, the apparatus can be robust to multi-path interference and extend transmission distance so as to increase transmission efficiency.

摘要翻译： 一种用于在承载有线电视广播信号的流水线上发送基于单频带正交频分复用（OFDM）的超宽带（UWB）信号的方法和装置。 该方法包括将从多媒体设备发送的多媒体信号变换为有线UWB信号; 将有线UWB信号变换为单频带OFDM信号; 并根据传输速率对单频带OFDM信号进行扩频。 因此，该装置可以对多路径干扰是鲁棒的，并且可以延长传输距离，从而提高传输效率。