Transmission apparatus, reception apparatus, transmission method, and reception method

A receiving apparatus that receives and demodulates a received signal that contains an information signal, a modulation method information signal relating to a method of modulating an information signal, and an error correction method information signal relating to a method of correcting an error of an information signal, the same modulation method information signal and the same error correction method information signal being arranged at discrete locations within the same frame, said receiving apparatus comprising:

• a reception power detector that detects reception power for the same discretely arranged modulation method information signal and the same discretely arranged error correction method information signal at their respective locations;
• a decider that decides a modulation method and an error correction method by performing weighting according to reception power on the same modulation method information signal and the same error correction method information signal arranged at a location corresponding to reception power detected by said reception power detector;
• and
• a signal selector that selects a demodulated signal obtained by executing demodulation processing and error correction processing corresponding to a modulation method and error correction method decided by said decider.

A receiving apparatus that receives and demodulates a received signal that contains an information signal, a modulation method information signal relating to a method of modulating an information signal, and an error correction method information signal relating to a method of correcting an error of an information signal, the same modulation method information signal and the same error correction method information signal being repeated and arranged at discrete locations within the same frame;

• said receiving apparatus comprising:
• a reception power detector that detects reception power for the same discretely arranged modulation method information signal and the same discretely arranged error correction method information signal at their respective locations;
• a decider that decides a modulation method and error correction method by selecting the same modulation method information signal and the same error correction method information signal arranged at a location corresponding to reception power detected by said reception power detector;
• and
• a signal selector that selects a demodulated signal obtained by executing demodulation processing and error correction processing corresponding to a modulation method and error correction method decided by said decider.

A transmission method comprising:

• generating a modulation method information signal relating to a method of modulating an information symbol and an error correction method information signal relating to a method of correcting an error of an information symbol;
• forming a transmit frame by repeating and discretely arranging at least one of the same modulation method information signal and the same error correction method information signal;
• and
• transmitting said transmit frame.

A reception method of receiving and demodulating a received signal that contains an information signal, a modulation method information signal relating to a method of modulating an information signal, and an error correction method information signal relating to a method of correcting an error of an information signal, the same modulation method information signal and the same error correction method information signal being repeated and arranged at discrete locations within the same frame, said reception method comprising:

• detecting reception power for the same discretely arranged modulation method information signal and the same discretely arranged error correction method information signal at their respective locations;
• deciding a modulation method and error correction method by selecting the same modulation method information signal and the same error correction method information signal arranged at a location corresponding to detected reception power;
• and
• selecting a demodulated signal obtained by executing demodulation processing and error correction processing corresponding to a decided modulation method and error correction method.