CONTROL FRAME AGGREGATION FRAME

• US 20160294515A1
• Filed: 04/04/2016
• Published: 10/06/2016
• Est. Priority Date: 04/06/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Wentink, Maarten Menzo, Merlin, Simone, Asterjadhi, Alfred
• Granted Patent: US 9,973,314 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 1/0079 Formats for control data H04L1/16 takes precedence; training sequences H04L25/00 and H04L27/00
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals

Abstract

Systems and methods are disclosed that may communicate a control aggregate frame from a first wireless device to a second wireless device. A first wireless device may form a control aggregate frame by aggregating a plurality of first control frames into the control aggregate frame. The control aggregate frame may include a single media access control (MAC) header, a plurality of first aggregation fields, each storing a control frame subtype for a corresponding one of the plurality of first control frames, and a plurality of first payload fields, each storing a corresponding one of the plurality of first control frames. After generating the control aggregate frame, the first wireless device may transmit it to the second wireless device.

Claims

1. A method for communicating a control aggregate frame from a first wireless device to a second wireless device, the method performed by the first wireless device and comprising:

forming the control aggregate frame by aggregating a plurality of first control frames into the control aggregate frame, the control aggregate frame comprising;

a single media access control (MAC) header;

a plurality of first aggregation fields, each storing a control frame subtype for a corresponding one of the plurality of first control frames; and

a plurality of first payload fields, each storing a corresponding one of the plurality of first control frames; and

transmitting the control aggregate frame to the second wireless device.

2. The method of claim 1, wherein the control aggregate frame includes only one frame check sequence (FCS) field.

3. The method of claim 1, wherein at least one of the first aggregation fields indicates a length of the corresponding control frame.

4. The method of claim 1, wherein at least one of the plurality of first control frames comprises a null data packet announcement (NDPA) frame.

5. The method of claim 4, wherein a respective one of the plurality of first aggregation fields stores a frame subtype for the NDPA frame, and a respective one of the plurality of first payload fields stores information identifying a number of stations for a sounding operation corresponding to the NDPA frame.

6. The method of claim 1, wherein forming the control aggregate frame further comprises:

aggregating a number of second control frames into the control aggregate frame, wherein each of the second control frames does not include a payload.

7. The method of claim 6, wherein the control aggregate frame further comprises:

a plurality of second aggregation fields, each storing a control frame subtype for a corresponding one of the number of second control frames.

8. The method of claim 6, wherein each of the number of second control frames is one member of the group consisting of an acknowledgement (ACK) frame, a block acknowledgement (BA) frame, a block acknowledgement request (BAR) frame, a beamforming report poll (BRPOL) frame, a clear-to-send (CTS) frame, a ready-to-send (RTS) frame, a power-save poll (PS-Poll) frame, and a null data frame.

9. The method of claim 1, wherein the control aggregate frame further comprises:

at least one aggregated MAC service data unit (A-MSDU) prepender; and

at least one A-MSDU following the A-MSDU prepender.

10. The method of claim 1, wherein the control aggregate frame further comprises:

at least one aggregated MAC protocol data unit (A-MPDU) prepender; and

at least one A-MPDU delimiter/A-MPDU pair following the A-MPDU prepender.

11. A wireless device, comprising:

one or more processors; and

a memory storing one or more programs comprising instructions that, when executed by the one or more processors, cause the wireless device to;

form a control aggregate frame by aggregating a plurality of first control frames into the control aggregate frame, the control aggregate frame comprising;

a single media access control (MAC) header;

a plurality of first aggregation fields, each storing a control frame subtype for a corresponding one of the plurality of first control frames; and

a plurality of first payload fields, each storing a corresponding one of the plurality of first control frames; and

transmit the control aggregate frame to another wireless device.

12. The wireless device of claim 11, wherein the control aggregate frame includes only one frame check sequence (FCS) field.

13. The wireless device of claim 11, wherein at least one of the first aggregation fields indicates a length of the corresponding control frame.

14. The wireless device of claim 11, wherein at least one of the plurality of first control frames comprises a null data packet announcement (NDPA) frame.

15. The wireless device of claim 14, wherein a respective one of the plurality of first aggregation fields stores a frame subtype for the NDPA frame, and a respective one of the plurality of first payload fields stores information identifying a number of stations for a sounding operation corresponding to the NDPA frame.

16. The wireless device of claim 11, wherein execution of the instructions causes the wireless device to perform operations further comprising:

aggregate a number of second control frames into the control aggregate frame, wherein each of the second control frames does not include a payload.

17. The wireless device of claim 16, wherein the control aggregate frame further comprises a plurality of second aggregation fields, each storing a control frame subtype for a corresponding one of the number of second control frames.

18. The wireless device of claim 16, wherein each of the number of second control frames is one member of the group consisting of an acknowledgment (ACK) frame, a block acknowledgment (BA) frame, a block acknowledgment request (BAR) frame, a beamforming report poll (BRPOL) frame, a clear-to-send (CTS) frame, a ready-to-send (RTS) frame, a power-save poll (PS-Poll) frame, and a null data frame.

19. The wireless device of claim 11, wherein the control aggregate frame further comprises:

at least one aggregated MAC service data unit (A-MSDU) prepender; and

at least one A-MSDU following the A-MSDU prepender.

20. The wireless device of claim 11, wherein the control aggregate frame further comprises:

at least one aggregated MAC protocol data unit (A-MPDU) prepender; and

at least one A-MPDU delimiter/A-MPDU pair following the A-MPDU prepender.

21. A non-transitory computer-readable storage medium storing one or more programs containing instructions that, when executed by one or more processors of a first wireless device, cause the first wireless device to perform operations comprising:

forming a control aggregate frame by aggregating a plurality of first control frames into the control aggregate frame, the control aggregate frame comprising;

a single media access control (MAC) header;

a plurality of first aggregation fields, each storing a control frame subtype for a corresponding one of the plurality of first control fields; and

a plurality of first payload fields, each storing a corresponding one of the plurality of first control frames; and

transmitting the control aggregate frame to a second wireless device.

22. The non-transitory computer-readable storage medium of claim 21, wherein the control aggregate frame includes only one frame check sequence (FCS) field.

23. The non-transitory computer-readable storage medium of claim 21, wherein at least one of the first aggregation fields indicates a length of the corresponding control frame.

24. The non-transitory computer-readable storage medium of claim 21, wherein at least one of the plurality of first control frames comprises a null data packet (NDPA) frame.

25. The non-transitory computer-readable storage medium of claim 24, wherein a respective one of the plurality of first aggregation fields stores a frame subtype for the NDPA frame, and a respective one of the plurality of first payload fields stores information identifying a number of stations for a sounding operation corresponding to the NDPA frame.

26. The non-transitory computer-readable storage medium of claim 21, wherein execution of the instructions causes the first wireless device to perform operations further comprising:

aggregating a number of second control frames into the control aggregate frame, wherein each of the second control frames does not include a payload.

27. The non-transitory computer-readable storage medium of claim 26, wherein the control aggregate frame further comprises:

a plurality of second aggregation fields, each storing a control frame subtype for a corresponding one of the number of second control frames.

28. The non-transitory computer-readable storage medium of claim 26, wherein each of the number of second control frames is one member of the group consisting of an acknowledgment (ACK) frame, a block acknowledgment (BA) frame, a block acknowledgment request (BAR) frame, a beamforming report poll (BRPOL) frame, a clear-to-send (CTS) frame, a ready-to-send (RTS) frame, a power-save poll (PS-Poll) frame, and a null data frame.

29. The non-transitory computer-readable storage medium of claim 21, wherein the control aggregate frame further comprises:

at least one aggregated MAC service data unit (A-MSDU) prepender; and

at least one A-MSDU following the A-MSDU prepender.

30. The non-transitory computer-readable storage medium of claim 21, wherein the control aggregate frame further comprises:

at least one aggregated MAC protocol data unit (A-MPDU) prepender; and

at least one A-MPDU delimiter/A-MPDU pair following the A-MPDU prepender.

31. A first wireless device for communicating a control aggregate frame to a second wireless device, the first wireless device comprising:

means for forming the control aggregate frame by aggregating a plurality of first control frames into the control aggregate frame, the control aggregate frame comprising;

a single media access control (MAC) header;

a plurality of first aggregation fields, each storing a control frame subtype for a corresponding one of the plurality of first control frames; and

a plurality of first payload fields, each storing a corresponding one of the plurality of first control frames; and

means for transmitting the control aggregate frame to the second wireless device.

32. The first wireless device of claim 31, wherein the control aggregate frame includes only one frame check sequence (FCS) field.

33. The first wireless device of claim 31, wherein at least one of the first aggregation fields indicates a length of the corresponding control frame.

34. The first wireless device of claim 31, wherein at least one of the plurality of first control frames comprises a null data packet announcement (NDPA) frame.

35. The first wireless device of claim 34, wherein a respective one of the plurality of first aggregation fields stores a frame subtype for the NDPA frame, and a corresponding one of the plurality of first payload fields stores information identifying a number of stations for a sounding operation corresponding to the NDPA frame.

36. The first wireless device of claim 31, wherein the means for forming the control aggregate frame is to further:

aggregate a number of second control frames into the control aggregate frames, wherein each of the second control frames does not include a payload.

37. The first wireless device of claim 36, wherein the control aggregate frame further comprises a plurality of second aggregation fields, each storing a control frame subtype for a corresponding one of the number of second control frames.

38. The first wireless device of claim 36, wherein each of the number of second control frames is one member from the group consisting of an acknowledgment (ACK) frame, a block acknowledgment (BA) frame, a block acknowledgment request (BAR) frame, a beamforming report poll (BRPOL) frame, a clear-to-send (CTS) frame, a ready-to-send (RTS) frame, a power-save poll (PS-Poll) frame, and a null data frame.

39. The first wireless device of claim 31, wherein the control aggregate frame further comprises:

at least one aggregated MAC service data unit (A-MSDU) prepender; and

at least one A-MSDU following the A-MSDU prepender.

40. The first wireless device of claim 31, wherein the control aggregate frame further comprises:

at least one aggregated MAC protocol data unit (A-MPDU) prepender; and

at least one A-MPDU delimiter/A-MPDU pair following the A-MPDU prepender.