Patent ID: 8437413

Claim:
A method for transmitting a codeword through a subchannel consisting of a plurality of tiles in a wireless communication system in which one tile comprises a plurality of data subcarriers and at least one pilot subcarrier, the method comprising: generating a codeword by assigning pilot symbols to the at least one pilot subcarrier in each tile of the plurality of tiles, by assigning a first codeword symbol to some of the plurality of data subcarriers in each tile of the plurality of tiles, and by assigning a second codeword symbol to the remaining data subcarriers in each tile of the plurality of tiles; and transmitting the codeword, wherein each of the first codeword symbol and the second codeword symbol has a phase value among equal or more than 4 phase values, and wherein the each tile of the plurality of tiles is identified by the first codeword symbol and the second codeword symbol included in the each tile of the plurality of tiles, and a bits-value of the codeword is determined by a combination of the plurality of tiles.