作者: Hyeong-Jong Ju , Kwang-Seop Eom , Bong-Gee Song , Min-hee Cho , Seung-Eun Hong
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摘要: A mobile communication system using an orthogonal frequency division multiplexing (OFDM)/orthogonal multiple access (OFDMA) scheme. The method for assigning ranging codes in the OFDM/OFDMA includes classifying rangings between a base station and subscriber (MSS) of into initial ranging, periodic bandwidth request handover ranging. first number used are created second selected from assigned as