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Registered Cell search method using position modulation of synchronization channel in OFDM system

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Inventors
Kim Il Gyu, Kim Nam Il, Park Hyeong Geun, Young-Hoon Kim, Chang Kapseok, Bang Seung Chan
Application No.
12093415 (2006.11.10)
Publication No.
20090080385 (2009.03.26)
Registration No.
8248911 (2012.08.21)
Country
UNITED STATES
Project Code
05MM1100, Research on 4G Mobile Communications Technology, Hwang Seung Ku
Abstract
Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure in an Orthogonal Frequency Division Multiplexing cellular system, wherein the time it takes to perform a cell search and the complexity of the cell search can be reduced. The cell search apparatus includes a sync acquirer which receives a signal according to a forward link frame comprising a plurality of sync channel symbols each having different intervals between the adjacent sync channel symbols and achieves synchronization of the sync channel symbols using a sync channel of the received signal, and a boundary detector which detects a frame boundary using an interval pattern between the sync channel symbols, based on the achieved synchronization.
KSP Keywords
Cell search, Cellular system, Forward link, Frame structure, Frequency division, Frequency division multiplexing, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), division multiplexing, position modulation, search method, transmission method