COMMUNICATION METHOD AND APPARATUS IN WIRLESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE OFDM PARAMETERS SET

摘要

PURPOSE: A wireless communication system is provided to optimize wireless communication system performance by supporting a plurality of OFDM parameter sets. CONSTITUTION: An OFDM parameter set corresponding to a plurality of RF chains is determined(100) and a default OFDM parameter set is determined based on the parameters(102). A supportable OFDM parameter set is provided to a terminal using the parameters(104). The OFDM parameter set for each terminal and each RF chain(106) judges whether modification of the OFDM parameter set is necessary or not(108), and if necessary, transmits the OFDM parameter set information to the corresponding terminal in consideration of portability of the terminal(110). The OFDM parameter set communicates with the terminal using the modified OFDM parameter set(112). [Reference numerals] (100) Determining a plurality of OFDM parameter sets; (102) Determining a default OFDM parameter set among the plurality of OFDM parameter sets; (104) Providing supportable OFDM parameter sets by a base station using the default OFDM parameter set; (106) Determining OFDM parameter sets for each terminal and determining OFDM parameter sets for each RF chain; (108) Change of OFDM parameter sets is necessary?; (110) Transmitting OFDM parameter set information to a corresponding terminal in consideration of the mobility of the terminal; (112) Performing communication with the terminal by using changed OFDM parameter sets; (AA) Start; (BB) No; (CC) Yes; (DD) End