IP Library › Granted Patent US 8,934,466

Granted Patent B2

US 8,934,466 · App. 13/327,560 · Granted Jan 13, 2015

Method and apparatus for supporting modulation-coding scheme set in very high throughput wireless systems

Inventors: Sameer Vermani (San Diego, CA); Santosh Paul Abraham (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04L1/0003 H04L1/0009 H04L1/0025 H04L1/0028 H04L1/06

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Quick Facts

Patent No.: US 8,934,466
App. No.: 13/327,560
Granted: Jan 13, 2015
Kind: B2

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USPTO Patent Center↗ Full Patent PDF↗

Abstract

Certain aspects of the present disclosure relate to techniques for designing Modulation-Coding Scheme (MSC) set fields in a transmission frame of Very High Throughput (VHT) wireless systems.

Claims (93)

1. A method for wireless communications, comprising:

constructing, at an apparatus, a frame comprising a first indication about a plurality of modulation-coding schemes (MCSs) supported by the apparatus for receiving a corresponding different number of spatial streams (SSs), wherein the first indication comprises, for each of the different numbers of SSs, a value that represents a highest MCS among the MCSs; and

transmitting the frame.

2. The method of claim 1 , wherein the frame further comprises a second indication about a highest data rate supported by the apparatus for reception.

3. The method of claim 2 , wherein the frame further comprises at least one of: a field specifying whether the apparatus advertises its transmitting MCS capability, a third indication about a plurality of MCSs supported by the apparatus for transmitting a corresponding different number of SSs, or a fourth indication about a highest data rate supported for transmission by the apparatus.

4. The method of claim 1 , wherein the value is associated with a plurality of bandwidths.

5. The method of claim 1 , wherein:

the first indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for reception by the apparatus for that bandwidth.

6. The method of claim 5 , wherein the plurality of bandwidths comprises at least one of: a bandwidth of 20 MHz, a bandwidth of 40 MHz, a bandwidth of 80 MHz, or a bandwidth of 160 MHz.

7. The method of claim 2 , wherein the second indication comprises a binary value representing, in units of Mega-bits per second, the highest data rate supported by the apparatus for reception.

8. A method for wireless communications, comprising:

constructing, at an apparatus, a frame comprising:

a first indication about a plurality of modulation-coding schemes (MCSs) supported by the apparatus for receiving a corresponding different number of spatial streams (SSs);

a second indication about a highest data rate supported by the apparatus for reception; and

a third indication about a plurality of MCSs supported by the apparatus for transmitting a corresponding different number of SSs, wherein the third indication comprises, for each of the different numbers of SSs, a value representing a highest MCS among the MCSs supported for transmission by the apparatus; and

transmitting the frame.

9. The method of claim 8 , wherein the value is associated with a plurality of bandwidths.

10. The method of claim 3 , wherein:

the third indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for transmission by the apparatus for that bandwidth.

11. The method of claim 10 , wherein the plurality of bandwidths comprises at least one of: a bandwidth of 20 MHz, a bandwidth of 40 MHz, a bandwidth of 80 MHz, or a bandwidth of 160 MHz.

12. The method of claim 3 , wherein the fourth indication comprises a binary value representing, in units of Mega-bits per second, the highest data rate supported for transmission by the apparatus.

13. The method of claim 1 , wherein the frame is transmitted in accordance with IEEE 802.11 family of wireless communications standards.

14. The method of claim 1 , wherein the first indication denotes no support for receiving that corresponding number of SSs, if the first indication comprises a specific value.

15. The method of claim 1 , wherein the first indication comprises a value that indicates a set of the MCSs supported by the apparatus for receiving the corresponding different number of SSs.

16. The method of claim 3 , wherein the third indication comprises a value that indicates a set of the MCSs supported by the apparatus for transmitting the corresponding different number of SSs.

17. An apparatus for wireless communications, comprising:

means for constructing a frame comprising a first indication about a plurality of modulation-coding schemes (MCSs) supported by the apparatus for receiving a corresponding different number of spatial streams (SSs)), wherein the first indication comprises, for each of the different numbers of SSs, a value that represents a highest MCS among the MCSs; and

means for transmitting the frame.

18. The apparatus of claim 17 , wherein the frame further comprises a second indication about a highest data rate supported by the apparatus for reception.

19. The apparatus of claim 18 , wherein the frame further comprises at least one of: a field specifying whether the apparatus advertises its transmitting MCS capability, a third indication about a plurality of MCSs supported by the apparatus for transmitting a corresponding different number of SSs, or a fourth indication about a highest data rate supported for transmission by the apparatus.

20. The apparatus of claim 17 , wherein the value is associated with a plurality of bandwidths.

21. The apparatus of claim 17 , wherein:

the first indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for reception by the apparatus for that bandwidth.

22. The apparatus of claim 21 , wherein the plurality of bandwidths comprises at least one of: a bandwidth of 20 MHz, a bandwidth of 40 MHz, a bandwidth of 80 MHz, or a bandwidth of 160 MHz.

23. The apparatus of claim 18 , wherein the second indication comprises a binary value representing, in units of Mega-bits per second, the highest data rate supported by the apparatus for reception.

24. An apparatus for wireless communications, comprising:

means for constructing a frame comprising:

a first indication about a plurality of modulation-coding schemes (MCSs) supported by the apparatus for receiving a corresponding different number of spatial streams (SSs);

a second indication about a highest data rate supported by the apparatus for reception;

a third indication about a plurality of MCSs supported by the apparatus for transmitting a corresponding different numbers of SSs, wherein the third indication comprises, for each of the different number of SSs, a value representing a highest MCS among the MCSs supported for transmission by the apparatus; and

means for transmitting the frame.

25. The apparatus of claim 24 , wherein the value is associated with a plurality of bandwidths.

26. The apparatus of claim 19 , wherein:

the third indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for transmission by the apparatus for that bandwidth.

27. The apparatus of claim 26 , wherein the plurality of bandwidths comprises at least one of: a bandwidth of 20 MHz, a bandwidth of 40 MHz, a bandwidth of 80 MHz, or a bandwidth of 160 MHz.

28. The apparatus of claim 19 , wherein the fourth indication comprises a binary value representing, in units of Mega-bits per second, the highest data rate supported for transmission by the apparatus.

29. The apparatus of claim 17 , wherein the frame is transmitted in accordance with IEEE 802.11 family of wireless communications standards.

30. The apparatus of claim 17 , wherein the first indication denotes no support for receiving that corresponding number of SSs, if the first indication comprises a specific value.

31. The apparatus of claim 17 , wherein the first indication comprises a value that indicates a set of the MCSs supported by the apparatus for receiving the corresponding different number of SSs.

32. The apparatus of claim 19 , wherein the third indication comprises a value that indicates a set of the MCSs supported by the apparatus for transmitting the corresponding different number of SSs.

33. An apparatus for wireless communications, comprising:

a circuit configured to construct a frame comprising a first indication about a plurality of modulation-coding schemes (MCSs) supported by the apparatus for receiving a corresponding different number of spatial streams (SSs), wherein the first indication comprises, for each of the different numbers of SSs, a value that represents a highest MCS among the MCSs; and

a transmitter configured to transmit the frame.

34. A non-transitory computer readable medium containing executable instructions for wireless communications, the executable instructions comprising instructions for:

transmitting the frame.

35. A method for wireless communications, comprising:

transmitting the frame, wherein

the first indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for reception by the apparatus for that bandwidth.

36. The method of claim 35 , wherein the plurality of bandwidths comprises at least one of: a bandwidth of 20 MHz, a bandwidth of 40 MHz, a bandwidth of 80 MHz, or a bandwidth of 160 MHz.

37. The method of claim 35 , wherein the frame further comprises a field specifying whether the apparatus advertises its transmitting MCS capability, and a second indication about a plurality of MCSs supported by the apparatus for transmitting a corresponding different number of SSs.

38. The method of claim 37 , wherein:

the second indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for transmission by the apparatus for that bandwidth.

39. The method of claim 35 , wherein the frame is transmitted in accordance with IEEE 802.11 family of wireless communications standards.

40. The method of claim 35 , wherein the first indication denotes no support for receiving that corresponding number of SSs, if the first indication comprises a specific value.

41. An apparatus for wireless communications, comprising:

means for transmitting the frame, wherein

the first indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for reception by the apparatus for that bandwidth.

42. The apparatus of claim 41 , wherein the plurality of bandwidths comprises at least one of: a bandwidth of 20 MHz, a bandwidth of 40 MHz, a bandwidth of 80 MHz, or a bandwidth of 160 MHz.

43. The apparatus of claim 41 , wherein the frame further comprises a field specifying whether the apparatus advertises its transmitting MCS capability, and a second indication about a plurality of MCSs supported by the apparatus for transmitting a corresponding different number of SSs.

44. The apparatus of claim 43 , wherein:

the second indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for transmission by the apparatus for that bandwidth.

45. The apparatus of claim 41 , wherein the frame is transmitted in accordance with IEEE 802.11 family of wireless communications standards.

46. The apparatus of claim 41 , wherein the first indication denotes no support for receiving that corresponding number of SSs, if the first indication comprises a specific value.

47. An apparatus for wireless communications, comprising:

a transmitter configured to transmit the frame, wherein

the first indication comprises a value for each of a plurality of bandwidths, and

the value represents a highest MCS among the MCSs supported for reception by the apparatus for that bandwidth.

48. A non-transitory computer readable medium containing executable instructions for wireless communications, the executable instructions comprising instructions for:

transmitting the frame, wherein

the first indication comprises a value for each of a plurality of bandwidths, and the value represents a highest MCS among the MCSs supported for reception by the apparatus for that bandwidth.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2012

From: VERMANI, SAMEER; ABRAHAM, SANTOSH PAUL

To: QUALCOMM INCORPORATED

Reel/Frame 027797/0471 →

Continuity (2)

Provisional Application 61423924 · Dec 16, 2010

Related Publication 20120155447A1 · Jun 21, 2012