Patent ID: 7773706

Claim:
A wireless communication method for communicating by using a plurality of antennas, comprising: transmitting a known symbol sequence including a plurality of known symbols ordered in time by using the antennas, each of the known symbols having plural subcarriers on which plural known values are carried, the known symbols including: at least one inverted known symbol in which a phase of one of two known values carried on two subcarriers adjacent in frequency domain is inverted and a phase of the other of the two known values is not inverted, and at least one non-inverted known symbol in which neither of phases of two known values carried on two subcarriers adjacent in frequency domain is inverted, time positions of the inverted known symbol and the non-inverted known symbol in the known symbol sequence being determined in accordance with the number of the known symbols in the known symbol sequence; and transmitting data symbols by using the antennas after the known symbol sequence is transmitted.