Transmitting apparatus and receiving apparatus

A transmitting apparatus that converts a transmission digital signal to a high-frequency analog signal and transmits the high-frequency analog signal using a plurality of transmission frequencies, the transmitting apparatus comprising:

• a block dividing unit that divides a transmission signal sequence into one or more blocks;
• a pre-coding unit that applies pre-coding processing to the blocks;
• a sub-block dividing unit that further divides the blocks after the pre-coding processing into sub-blocks;
• a frequency allocating unit that generates a frequency signal in which the sub-blocks are allocated to the transmission frequencies;
• an inverse discrete Fourier transform unit that transforms the frequency signal into a time signal, wherein the transmitting apparatus sets the time signal as the transmission digital signal;
• an encoding unit that applies error correction encoding to the blocks;
• and
• an encoded-block dividing unit that divides each of the blocks after the error correction encoding into one or more encoded blocks, wherein
• the pre-coding unit applies the pre-coding processing to the encoded blocks.

A transmitting apparatus that converts a transmission digital signal to a high-frequency analog signal and transmits the high-frequency analog signal using a plurality of transmission frequencies, the transmitting apparatus comprising:

• a block dividing unit that divides a transmission signal sequence into one or more blocks;
• a plurality of transmission antennas;
• a mapping unit that divides the one or more blocks according to a number of the transmission antennas and allocates the one or more blocks to the transmission antennas;
• a pre-coding unit that applies pre-coding processing to the blocks;
• a sub-block dividing unit that further divides the blocks after the pre-coding processing into sub-blocks;
• a frequency allocating unit that generates a frequency signal in which the sub-blocks are allocated to the transmission frequencies;
• and
• an inverse discrete Fourier transform unit that transforms the frequency signal into a time signal, wherein the transmitting apparatus sets the time signal as the transmission digital signal, wherein
• the transmitting apparatus allocates the transmission frequencies to the transmission antennas as frequencies for each antenna, and
• the frequency allocating unit generates, for each of the transmission antennas, a frequency signal in which the sub-blocks allocated by the mapping unit are respectively allocated to the frequencies for each antenna.