APPARATUS AND METHOD FOR ASSIGNING GROUPS OF SUBCARRIERS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEM

APPARATUS AND METHOD FOR ASSIGNING GROUPS OF SUBCARRIERS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEM

PROBLEM TO BE SOLVED: To provide an apparatus and method for assigning groups of sub-carriers in an orthogonal frequency division multiplex (OFDM) system. SOLUTION: In the apparatus and method, data are transmitted through at least one transmit antenna but at least two sub-carriers in a predetermine...

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Bibliographische Detailangaben
Hauptverfasser: SAI CHINKEI, LIM YOUNG-SEOK, MOON YONG-SUK, KIN SEICHIN, YU HYUN-SEOK, LEE HYE-JEONG, OH HYUN-SEOK
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an apparatus and method for assigning groups of sub-carriers in an orthogonal frequency division multiplex (OFDM) system. SOLUTION: In the apparatus and method, data are transmitted through at least one transmit antenna but at least two sub-carriers in a predetermined frequency band are assigned for data transmission. A node groups sub-carriers available to the OFDM system into sub-carrier groups, each having at least two sub-carriers, transmits data to user equipment (UE) on sub-carriers in the sub-carrier groups, selects at least one sub-carrier group based on channel condition information received from the UE about each of the sub-carrier groups, and assigns the selected sub-carrier group to the UE. COPYRIGHT: (C)2005,JPO&NCIPI