RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS AND WIRELESS COMMUNICATION METHOD

摘要

A radio transmitting apparatus, a radio receiving apparatus and a wireless communication method wherein the channel estimation precision can be improved without increasing the number of pilot signals when two different time-frequency multiplexed physical channel structures are used in an OFDM wireless communication system. A multiplexing part (113) multiplexes, in a previously fixed pattern for each symbol, a pilot symbol generated by a pilot signal generating part (101); a D-ch transport data #1 that has been converted to a QPSK modulated symbol by a D-ch first data processing part (102); a D-ch transport data #2 that has been converted to a modulated symbol by a D-ch second data processing part (105); and L-ch transport data #1 and #2 that have been converted to modulated symbols by an L-ch data processing part (108).