Patent ID: 8406327

Claim:
A wireless communication apparatus comprising: a generator to generate a transmission symbol; an assigning unit configured to assign, to the transmission symbol, a given number of units each formed of a time domain symbol and a frequency domain subcarrier in a frame which is formed of M (M is a positive integer) time domain symbols and N (N is a positive integer) frequency domain subcarriers and includes M×N units, and the given number of units including P (P is a positive integer not more than M) time domain symbols and Q (Q is a positive integer not more than N) frequency domain subcarriers; a code multiplying unit configured to multiply the transmission symbols assigned to the given number of units by respective elements included in a code sequence, elements in the code sequence multiplied by transmission symbols in each time domain symbol being different from each other; and a transmission unit configured to transmit the transmission symbols multiplied by the code sequence, wherein the Q frequency domain subcarriers are continuous frequency domain subcarriers.