Transmitting apparatus, receiving apparatus, transmission method, and reception method

1. A transmission frame generating device for generating a transmission frame, comprising:

a control information signal generator that generates a modulation method control signal indicating a modulation method used for a data signal and an error correction method control signal indicating an error correction method used for the data signal; and

a frame former that forms the transmission frame by repeating and discretely arranging the same modulation method control signal on a first multiple of a plurality of subcarriers on a frequency axis and by repeating and discretely arranging the same error correction method control signal on a second multiple of the plurality of the subcarriers on the frequency axis.

2. The transmission frame generating device according to claim 1 ,

wherein the frame former forms the transmission frame by repeating and discretely arranging the same modulation method control signal on the first multiple of the plurality of subcarriers at the same first time and the same error correction method control signal on the second multiple of the plurality of the subcarriers at the same second time.

3. The transmission frame generating device according to claim 1 ,

wherein the frame former forms the transmission frame in which the same modulation method control signal is located prior to the same error correction method control signal.

4. The transmission frame generating device according to claim 2 ,

wherein the frame former forms the transmission frame in which the same modulation method control signal is located prior to the same error correction method control signal.

5. The transmission frame generating device according to claim 1 , further comprising:

a modulator that modulates the data signal, the modulation method control signal and the error correction method control signal,

wherein the modulation method control signal and the error correction method control signal is modulated using QPSK or BPSK modulation.

6. The transmission frame generating device according to claim 2 , further comprising:

a modulator that modulates the data signal, the modulation method control signal and the error correction method control signal,

wherein the modulation method control signal and the error correction method control signal is modulated using QPSK or BPSK modulation.

7. The transmission frame generating device according to claim 1 ,

wherein each transmission frame includes a first period and a second period;

wherein the first period includes the modulation method control signal and the error correction method control signal; and

wherein the second period includes the data signal.

8. The transmission frame generating device according to claim 2 ,

wherein each transmission frame includes a first period and a second period;

wherein the first period includes the modulation method control signal and the error correction method control signal; and

wherein the second period includes the data signal.

9. The transmission frame generating device according to claim 1 ,

wherein a location of the first multiple of the plurality of subcarriers on the frequency axis is the same as a location of the second multiple of the plurality of subcarriers on the frequency axis.

10. The transmission frame generating device according to claim 1 ,

wherein the same modulation method control signals are arranged into two discrete modulation groups, the same modulation method control signals being adjacent to each other in each of the modulation groups, and,

wherein the same error correction method control signals are arranged into two discrete error correction groups, the same error correction method control signals being adjacent to each other in each of the error correction groups.

11. The transmission frame generating device according to claim 1 ,

wherein the data signal, the modulation method control signal and the error correction method control signal are transmitted by using the transmission frame.

12. The transmission frame generating device according to claim 1 ,

wherein the modulation method control signal indicates a selected modulation method from a plurality of modulation methods used for the data signal and the error correction method control signal indicates a selected error correction method from a plurality of error correction methods used for the data signal.

13. A transmission frame generating method for generating a transmission frame, comprising:

generating a modulation method control signal indicating a modulation method used for a data signal and an error correction method control signal indicating an error correction method used for the data signal; and

forming the transmission frame by repeating and discretely arranging the same modulation method control signal on a first multiple of a plurality of subcarriers on a frequency axis and by repeating and discretely arranging the same error correction method control signal on a second multiple of the plurality of subcarriers on the frequency axis.

14. The transmission frame generating method according to claim 13 ,

wherein the forming of transmission frame is performed by repeating and discretely arranging the same modulation method control signal on the first multiple of the plurality of subcarriers at the same first time and the same error correction method control signal on the second multiple of the plurality of the subcarriers at the same second time.

15. The transmission frame generating method according to claim 14 , further comprising:

transmitting the modulation method control signal, the error correction method control signal and the data signal by using the transmission frame.

16. The transmission frame generating method according to claim 15 ,

wherein the forming of transmission frame is performed by forming the transmission frame in which the same modulation method control signal is located prior to the same error correction method control signal.

17. The transmission frame generating method according to claim 13 ,

wherein the modulation method control signal and the error correction method control signal are modulated using QPSK or BPSK modulation.

18. The transmission frame generating method according to claim 13 ,

wherein each transmission frame includes a first period and a second period;

wherein the first period includes the modulation method control signal and the error correction method control signal; and

wherein the second period includes the data signal.

19. The transmission frame generating method according to claim 13 ,

wherein a location of the first multiple of the plurality of subcarriers on the frequency axis is the same as a location of the second multiple of the plurality of subcarriers on the frequency axis.

20. The transmission frame generating method according to claim 13 ,

wherein the same modulation method control signals are arranged into two discrete modulation groups, the same modulation method control signals being adjacent to each other in each of the modulation groups, and,

wherein the same error correction method control signals are arranged into two discrete error correction groups, the same error correction method control signals being adjacent to each other in each of the error correction groups.

21. The transmission frame generating method according to claim 13 ,

wherein the modulation method control signal indicates a selected modulation method from a plurality of modulation methods used for the data signal and the error correction method control signal indicates a selected error correction method from a plurality of error correction methods used for the data signal.