APPARATUS AND A METHOD FOR ALLOCATING SUB-CHANNELS IN A COMMUNICATION SYSTEM USING OFDMA, PARTICULARLY FOR MINIMIZING PROBABILITY OF COLLISION AMONG SUB-CHANNELS OF ADJACENT BASE STATIONS

PURPOSE: An apparatus and a method for allocating sub-channels in a communication system using an OFDMA(Orthogonal Frequency Division Multiple Access) are provided to maximize efficiency of cell searching and channel estimation by constructing some of allocated sub-channels as pilot channels. CONSTI...

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Bibliographic Details
Main Authors HWANG, IN SEOK, ROH, KWAN HEE, YOON, SOON YOUNG, HUH, HOON, CHO, JAE HEE, SUNG, SANG HOON
Format Patent
LanguageEnglish
Korean
Published 25.01.2005
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:PURPOSE: An apparatus and a method for allocating sub-channels in a communication system using an OFDMA(Orthogonal Frequency Division Multiple Access) are provided to maximize efficiency of cell searching and channel estimation by constructing some of allocated sub-channels as pilot channels. CONSTITUTION: Sub-carrier bands are classified at a pre-set interval to generate the same number of sub-carrier groups as the number of base stations. Sub-carrier bands are detected from each group corresponding to a sequence previously set according to certain controlling with respect to a specific base station. The detected sub-carrier bands are allocated as sub-channels with respect to the specific base station.
Bibliography:Application Number: KR20030049341