Transmission apparatus, transmission method, reception apparatus and reception method

A reception apparatus, comprising:

• a receiving part for receiving, by a plurality of reception antennas, signals which have been radio-transmitted simultaneously from respective ones of a plurality of transmission antenna;
• and
• a demodulating part for demodulating the signals received by the receiving part,
• wherein, in the signals received by the receiving part, a data channel under transmission is separated into a plurality of symbol sequences, and the contents of the respective symbol sequences are adjusted so that symbol sequences transmitted from respective ones of the plurality of transmission antennas mutually have a predetermined relationship.

A reception method, comprising the steps of:

• receiving, by a plurality of reception antennas, signals which have been radio-transmitted simultaneously from respective ones of a plurality of transmission antennas;
• and
• demodulating the received signals,
• wherein, in the received signals, received in the receiving step, a data channel under transmission is separated into a plurality of symbol sequences, and the contents of the respective symbol sequences are adjusted so that symbol sequences transmitted from respective ones of the plurality of transmission antennas mutually have a predetermined relationship.