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Registered ON-CHANNEL REPEATER FOR FEEDBACK CAPABLE OF REMOVING FEEDBACK SIGNALS BASED ON PILOT PARTITIONING AND METHOD THEREOF

파일럿 분할을 통해 궤환신호를 제거하는 복조형 동일채널 중계장치 및 그 방법
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Inventors
Sung Ik Park, Lee Yong Tae, 이지봉, 김형남, 손경식, 김완진, Lee Soo In, Lim Jong Soo
Application No.
12681966 (2008.06.10)
Publication No.
20100210205 (2010.08.19)
Registration No.
8364074 (2013.01.29)
Country
UNITED STATES
Project Code
07MR3800, Development of On-Channel RF repeating technology based on OFDM modulation, Lee Yong Tae
Abstract
Provided is an on-channel repeater capable of removing feedback signals based on pilot partitioning, which can efficiently remove a feedback signal by quickly coping with even a situation in which a feedback channel changes rapidly, by reducing a filter-coefficient update interval, i.e., increasing the number of times of filter-coefficient creation, through pilot partitioning, and a method thereof. The on-channel repeater includes: a receiver for receiving a signal; a subtractor for subtracting a replica of a feedback signal from the signal received in the receiver to remove the feedback signal; a replica creator for creating a filter coefficient using pilot partitioning, creating a replica of the feedback signal using the created filter coefficient, and feeding back the created replica to the subtractor; and a transmitter for transmitting an output signal of the subtractor.
KSP Keywords
Feedback channel, Filter coefficients, Update interval, feedback signal