Abstract
PROBLEM TO BE SOLVED: To provide a transmitter/receiver with space time transmission diversity to be used for a radio OFDM communication system and to realize simple and certain channel estimation.
SOLUTION: First and second pilot symbols constituted so that a part of the second pilot symbol can orthogonally cross the corresponding first pilot symbol are transmitted from first and second antennas and the first and second pilot symbols are received by the single antenna of a receiver. The transmission quantity of the signals transmitted form the first antenna and the second antenna is individually decided based on the received pilot symbols.
COPYRIGHT: (C)2002JPO&Japio
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