METHOD FOR EMBODYING UPLINK FRAM OF WIRELESS COMMUNICATION SYSTEM BASED ON OFDMA

摘要

The invention discloses a kind of methods, for configuring a uplink frame in a wireless communication system based on OFDMA. Whole bands of uplink frame are divided into the subcarrier group of predetermined number. Subcarrier frequency within the subcarrier group of distribution respectively is assigned to the runner limited the consecutive symbols of predetermined number by the slot definition in uplink frame. Pilot subcarriers are distributed by the unit of the predetermined number of symbol to allow channel estimation among the subcarrier frequency of distribution. Correspondingly, data subcarriers are to be bumped against by the specific user of minimum and adjacent cell to distribute channel estimation in a cellular system using preamble, some positions of data subcarriers are allocated for driver, to allow synchronous demodulation and improve frequency repeat utilization ratio.