A transmission method comprising: an interleaving step of: storing a first bit sequence, and a second bit sequence that is different from the first bit sequence, the first and second bit sequences being encoded, transmitting bit sequences; interleaving the first bit sequence into a first interleaved bit sequence using a first interleaving pattern in which an output order pattern of the first bit sequence is different from an input order pattern of the first bit sequence; and interleaving the second bit sequence into a second interleaved bit sequence using a second interleaving pattern in which an output order pattern of the second bit sequence is different from the output order pattern of the first bit sequence; and a modulation step of: modulating the first interleaved bit sequence into a first modulated symbol; and modulating the second interleaved bit sequence into a second modulated symbol; and a transmission step of: generating a first orthogonal frequency division multiplexing symbol mapped over a plurality of subcarriers, from a plurality of first modulated symbols; generating a second orthogonal frequency division multiplexing symbol mapped over a plurality of subcarriers, from a plurality of second modulated symbols; transmitting the first orthogonal frequency division multiplexing symbol from a first antenna in a specific frequency band and time; and transmitting the second orthogonal frequency division multiplexing symbol from a second antenna in the specific frequency band and time, shared in common with the first orthogonal frequency division multiplexing symbol, wherein: the amount of bits interleaved by the first interleaving pattern and the amount of bits interleaved by the second interleaving pattern are the same. an interleaving step of: storing a first bit sequence, and a second bit sequence that is different from the first bit sequence, the first and second bit sequences being encoded, transmitting bit sequences; interleaving the first bit sequence into a first interleaved bit sequence using a first interleaving pattern in which an output order pattern of the first bit sequence is different from an input order pattern of the first bit sequence; and interleaving the second bit sequence into a second interleaved bit sequence using a second interleaving pattern in which an output order pattern of the second bit sequence is different from the output order pattern of the first bit sequence; and a modulation step of: modulating the first interleaved bit sequence into a first modulated symbol; and modulating the second interleaved bit sequence into a second modulated symbol; and storing a first bit sequence, and a second bit sequence that is different from the first bit sequence, the first and second bit sequences being encoded, transmitting bit sequences; interleaving the first bit sequence into a first interleaved bit sequence using a first interleaving pattern in which an output order pattern of the first bit sequence is different from an input order pattern of the first bit sequence; and interleaving the second bit sequence into a second interleaved bit sequence using a second interleaving pattern in which an output order pattern of the second bit sequence is different from the output order pattern of the first bit sequence; and a modulation step of: modulating the first interleaved bit sequence into a first modulated symbol; and modulating the second interleaved bit sequence into a second modulated symbol; and modulating the first interleaved bit sequence into a first modulated symbol; and modulating the second interleaved bit sequence into a second modulated symbol; and a transmission step of: generating a first orthogonal frequency division multiplexing symbol mapped over a plurality of subcarriers, from a plurality of first modulated symbols; generating a second orthogonal frequency division multiplexing symbol mapped over a plurality of subcarriers, from a plurality of second modulated symbols; transmitting the first orthogonal frequency division multiplexing symbol from a first antenna in a specific frequency band and time; and transmitting the second orthogonal frequency division multiplexing symbol from a second antenna in the specific frequency band and time, shared in common with the first orthogonal frequency division multiplexing symbol, generating a first orthogonal frequency division multiplexing symbol mapped over a plurality of subcarriers, from a plurality of first modulated symbols; generating a second orthogonal frequency division multiplexing symbol mapped over a plurality of subcarriers, from a plurality of second modulated symbols; transmitting the first orthogonal frequency division multiplexing symbol from a first antenna in a specific frequency band and time; and transmitting the second orthogonal frequency division multiplexing symbol from a second antenna in the specific frequency band and time, shared in common with the first orthogonal frequency division multiplexing symbol, the amount of bits interleaved by the first interleaving pattern and the amount of bits interleaved by the second interleaving pattern are the same.