Techniques to communicate information using OFDMA tone allocation schemes in frequency bands

1. An apparatus, comprising:

bandwidth determination circuitry to determine a bandwidth in a frequency band to communicate information to stations;

Orthogonal Frequency-Divisional Multiple Access (OFDMA) tone allocation circuitry to select a first OFDMA tone allocation scheme based on the bandwidth being 40 Megahertz (MHz), the first OFDMA tone allocation scheme to include a first 26-tone resource unit located in a middle portion of tones below direct conversion (DC) tones and a second 26-tone resource unit in a second middle portion of tones above the DC tones, the first and second 26-tone resource units at least in a 26-tone resource unit allocation set and a 52-tone resource unit allocation set; and

circuitry to cause communication of information to the stations based on the first OFDMA tone allocation scheme.

2. The apparatus of claim 1 , the first OFDMA tone allocation scheme to include twelve guards located on a first end of tones below the DC tones and eleven guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, and a 484-tone resource unit allocation set.

3. The apparatus of claim 1 , the first OFDMA tone allocation to include null tones on each side of the first 26-tone resource unit and each side of the second 26-tone resource unit.

4. The apparatus of claim 1 , the OFDMA tone allocation circuitry to select a second OFDMA tone allocation scheme based on the bandwidth being 20 MHz, the second OFDMA tone allocation scheme to include a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, and a 242-tone resource unit allocation set, and a single 26-tone resource unit straddling direct conversion (DC) tones in the bandwidth; and

the circuitry to cause communication of information to the stations based on the second OFDMA tone allocation scheme.

5. The apparatus of claim 4 , the second OFDMA tone allocation scheme to include the 26-tone resource unit to straddle direct conversion (DC) tones in the 26-tone resource unit allocation set and the 52-tone resource unit allocation set.

6. The apparatus of claim 4 , the second OFDMA tone allocation scheme to include six guards located on a first end of tones below the DC tones and five guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, and a 242-tone resource unit allocation set.

7. The apparatus of claim 4 , the second OFDMA tone allocation scheme to include null tones in a first middle portion of tones below the DC tones and a second middle portion of tones above the DC tones.

8. The apparatus of claim 1 , the OFDMA tone allocation circuitry to select a third OFDMA tone allocation scheme based on the bandwidth being 80 MHz, the third OFDMA tone allocation scheme to include a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, a 484-tone resource unit allocation set, and a 996-resource unit allocation set, and a single 26-tone resource unit straddling direct conversion (DC) tones in the bandwidth; and

the circuitry to cause communication of information to the stations based on the third OFDMA tone allocation scheme.

9. The apparatus of claim 8 , the third OFDMA tone allocation scheme to include the 26-tone resource unit to straddle direct conversion (DC) tones in the 26-tone resource unit allocation set, the 52-tone resource unit allocation set, the 242-tone resource unit allocation set, and the 484-tone resource unit allocation set.

10. The apparatus of claim 8 , the third OFDMA tone allocation scheme to include twelve guards located on a first end of tones below the DC tones and eleven guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, a 484-tone resource unit allocation set, and a 996-tone resource unit allocation set.

11. The apparatus of claim 1 , comprising:

a transceiver coupled with an antenna to communication the information, and wherein the frequency band comprising one of a 2.4 Gigahertz (GHz) band and a 5 GHz band, and the bandwidth comprising one of 20 megahertz (MHz) frequency range, a 40 MHz frequency range, and an 80 MHz frequency range.

12. At least one non-transitory storage medium containing instructions that when executed cause processing circuitry to:

determine a bandwidth in a frequency band to communicate information to stations;

select a first OFDMA tone allocation scheme based on the bandwidth being 40 Megahertz (MHz), the first OFDMA tone allocation scheme to include a first 26-tone resource unit located in a middle portion of tones below direct conversion (DC) tones and a second 26-tone resource unit in a second middle portion of tones above the DC tones, the first and second 26-tone resource units at least in a 26-tone resource unit allocation set and a 52-tone resource unit allocation set; and

cause communication of information to the stations based on the first OFDMA tone allocation scheme.

13. The at least one non-transitory storage medium of claim 12 , the first OFDMA tone allocation scheme to include twelve guards located on a first end of tones below the DC tones and eleven guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, and a 484-tone resource unit allocation set.

14. The at least one non-transitory storage medium of claim 12 , the first OFDMA tone allocation to include null tones on each side of the first 26-tone resource unit and each side of the second 26-tone resource unit.

15. The at least one non-transitory storage medium of claim 12 containing instructions that when executed cause processing circuitry to:

select a second OFDMA tone allocation scheme based on the bandwidth being 20 MHz, the second OFDMA tone allocation scheme to include a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, and a 242-tone resource unit allocation set, and a single 26-tone resource unit straddling direct conversion (DC) tones in the bandwidth; and

cause communication of information to the stations based on the second OFDMA tone allocation scheme.

16. The at least one non-transitory storage medium of claim 15 , the second OFDMA tone allocation scheme to include the 26-tone resource unit to straddle direct conversion (DC) tones in the 26-tone resource unit allocation set and the 52-tone resource unit allocation set.

17. The at least one non-transitory storage medium of claim 15 , the second OFDMA tone allocation scheme to include six guards located on a first end of tones below the DC tones and five guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, and a 242-tone resource unit allocation set.

18. The at least one non-transitory storage medium of claim 15 , the second OFDMA tone allocation scheme to include null tones in a first middle portion of tones below the DC tones and a second middle portion of tones above the DC tones.

19. The at least one non-transitory storage medium of claim 12 containing instructions that when executed cause processing circuitry to:

select third OFDMA tone allocation scheme based on the bandwidth being 80 MHz, the third OFDMA tone allocation scheme to include a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, a 484-tone resource unit allocation set, and a 996-resource unit allocation set, and a single 26-tone resource unit straddling direct conversion (DC) tones in the bandwidth; and

cause communication of information to the stations based on the third OFDMA tone allocation scheme.

20. The at least one non-transitory storage medium of claim 19 , the third OFDMA tone allocation scheme to include the 26-tone resource unit to straddle direct conversion (DC) tones in the 26-tone resource unit allocation set, the 52-tone resource unit allocation set, the 242-tone resource unit allocation set, and the 484-tone resource unit allocation set.

21. The at least one non-transitory storage medium of claim 19 , the third OFDMA tone allocation scheme to include twelve guards located on a first end of tones below the DC tones and eleven guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, a 484-tone resource unit allocation set, and a 996-tone resource unit allocation set.

22. A computer-implemented method, comprising:

determining a bandwidth in a frequency band to communicate information to stations;

selecting a first OFDMA tone allocation scheme based on the bandwidth being 40 Megahertz (MHz), the first OFDMA tone allocation scheme to include a first 26-tone resource unit located in a middle portion of tones below direct conversion (DC) tones and a second 26-tone resource unit in a second middle portion of tones above the DC tones, the first and second 26-tone resource units at least in a 26-tone resource unit allocation set and a 52-tone resource unit allocation set; and

causing communication of information to the stations based on the first OFDMA tone allocation scheme.

23. The computer-implemented method of claim 22 , the first OFDMA tone allocation scheme to include twelve guards located on a first end of tones below the DC tones and eleven guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, and a 484-tone resource unit allocation set.

24. The computer-implemented method of claim 22 , the first OFDMA tone allocation to include null tones on each side of the first 26-tone resource unit and each side of the second 26-tone resource unit.

25. The computer-implemented method of claim 22 , comprising:

selecting a second OFDMA tone allocation scheme based on the bandwidth being 20 MHz, the second OFDMA tone allocation scheme to include a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, and a 242-tone resource unit allocation set, and a single 26-tone resource unit straddling direct conversion (DC) tones in the bandwidth; and

causing communication of information to the stations based on the second OFDMA tone allocation scheme.

26. The computer-implemented method of claim 25 , the second OFDMA tone allocation scheme to include the 26-tone resource unit to straddle direct conversion (DC) tones in the 26-tone resource unit allocation set and the 52-tone resource unit allocation set.

27. The computer-implemented method of claim 25 , the second OFDMA tone allocation scheme to include six guards located on a first end of tones below the DC tones and five guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, and a 242-tone resource unit allocation set.

28. The computer-implemented method of claim 25 , the second OFDMA tone allocation scheme to include null tones in a first middle portion of tones below the DC tones and a second middle portion of tones above the DC tones.

29. The computer-implemented method of claim 22 , comprising:

selecting third OFDMA tone allocation scheme based on the bandwidth being 80 MHz, the third OFDMA tone allocation scheme to include a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, a 484-tone resource unit allocation set, and a 996-resource unit allocation set, and a single 26-tone resource unit straddling direct conversion (DC) tones in the bandwidth; and

causing communication of information to the stations based on the third OFDMA tone allocation scheme.

30. The computer-implemented method of claim 29 , the third OFDMA tone allocation scheme to include the 26-tone resource unit to straddle direct conversion (DC) tones in the 26-tone resource unit allocation set, the 52-tone resource unit allocation set, the 242-tone resource unit allocation set, and the 484-tone resource unit allocation set.

31. The computer-implemented method of claim 29 , the third OFDMA tone allocation scheme to include twelve guards located on a first end of tones below the DC tones and eleven guards located on a second end of tones above the DC tones for each of a 26-tone resource unit allocation set, a 52-tone resource unit allocation set, a 242-tone resource unit allocation set, a 484-tone resource unit allocation set, and a 996-tone resource unit allocation set.