VIDEO TRANSMISSION OVER SDMA

• US 20100220654A1
• Filed: 02/24/2010
• Published: 09/02/2010
• Est. Priority Date: 02/27/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Wentink, Maarten Menzo
• Granted Patent: US 10,236,950 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04B 7/0417 Feedback systems
• CPC Class Codes: H04L 1/1685 the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Certain aspects of the present disclosure generally relate to communication, and more specifically, to techniques for transmitting data in parallel, such as spatial division multiple access (SDMA) techniques.

Claims

1. A method for transmitting data to multiple wireless apparatuses, comprising:

transmitting, to the wireless apparatuses, a transmission comprising data frames for each wireless apparatus during a first transmit opportunity; and

receiving, during one or more second transmit opportunities, acknowledgements of receipt of the data frames from the wireless apparatuses.

2. The method of claim 1, wherein the transmission comprises a frame indicating a start of the second transmit opportunities.

3. The method of claim 1, wherein the transmission comprises a block acknowledgement request for each wireless apparatus.

4. The method of claim 1, wherein the transmission is transmitted via a spatial division multiple access (SDMA) scheme.

5. The method of claim 1, wherein receiving the acknowledgements of receipt of the data frames comprises receiving multiple acknowledgements simultaneously via a spatial division multiple access (SDMA) scheme.

6. The method of claim 1, wherein the data frames comprise User Datagram Protocol (UDP) frames.

7. The method of claim 1, wherein the data frames comprise Transmission Control Protocol (TCP) frames.

8. The method of claim 1, wherein the data frames comprise streaming video data.

9. A method of wireless communications, comprising:

receiving a transmission comprising a data frame during a first transmit opportunity in which multiple data frames were sent to multiple wireless apparatuses; and

transmitting an acknowledgement of receipt of the data frame during a second transmit opportunity.

10. The method of claim 9, wherein the transmission comprises a frame indicating a start of the second transmit opportunity.

11. The method of claim 9, wherein the transmission comprises a block acknowledgement request for each wireless apparatus.

12. The method of claim 9, wherein the data frames were sent simultaneously to the wireless apparatuses via a spatial division multiple access (SDMA) scheme.

13. The method of claim 9, wherein transmitting the acknowledgement of the received data frame during the second transmit opportunity comprises transmitting the acknowledgement simultaneously with acknowledgements transmitted by other wireless apparatuses.

14. The method of claim 9, wherein the data frame comprises a User Datagram Protocol (UDP) frame.

15. The method of claim 9, wherein the data frame comprises a Transmission Control Protocol (TCP) frame.

16. The method of claim 9, wherein the data frame comprises streaming video data.

17. An apparatus for transmitting data to multiple wireless apparatuses, comprising:

a transmitter for transmitting, to the wireless apparatuses, a transmission comprising data frames during a first transmit opportunity; and

a receiver for receiving, during one or more second transmit opportunities, acknowledgements of receipt of the data frames from the wireless apparatuses.

18. The apparatus of claim 17, wherein the transmission comprises a frame indicating a start of the second transmit opportunities.

19. The apparatus of claim 17, wherein the transmission comprises a block acknowledgement request for each wireless apparatus.

20. The apparatus of claim 17, wherein the transmission is transmitted via a spatial division multiple access (SDMA) scheme.

21. The apparatus of claim 17, wherein the receiver is configured to receive multiple acknowledgements simultaneously via a spatial division multiple access (SDMA) scheme.

22. The apparatus of claim 17, wherein the data frames comprise User Datagram Protocol (UDP) frames.

23. The apparatus of claim 17, wherein the data frames comprise Transmission Control Protocol (TCP) frames.

24. The apparatus of claim 17, wherein the data frames comprise streaming video data.

25. An apparatus for wireless communications, comprising:

a receiver for receiving a transmission comprising a data frame during a first transmit opportunity in which multiple data frames were sent to multiple wireless apparatuses; and

a transmitter for transmitting an acknowledgement of receipt of the data frame during a second transmit opportunity.

26. The apparatus of claim 25, wherein the transmission comprises a frame indicating a start of the second transmit opportunity.

27. The apparatus of claim 25, wherein the transmission comprises a block acknowledgement request for each wireless apparatus.

28. The apparatus of claim 25, wherein the data frames were sent simultaneously to the wireless apparatuses via a spatial division multiple access (SDMA) scheme.

29. The apparatus of claim 25, wherein the transmitter is configured to transmit the acknowledgement simultaneously with acknowledgements transmitted by other wireless apparatuses.

30. The apparatus of claim 25, wherein the data frame comprises a User Datagram Protocol (UDP) frame.

31. The apparatus of claim 25, wherein the data frame comprises a Transmission Control Protocol (TCP) frame.

32. The apparatus of claim 25, wherein the data frame comprises streaming video data.

33. An apparatus for transmitting data to multiple wireless apparatuses, comprising:

means for transmitting, to the wireless apparatuses, a transmission comprising data frames during a first transmit opportunity; and

means for receiving, during one or more second transmit opportunities, acknowledgements of receipt of the data frames from the wireless apparatuses.

34. The apparatus of claim 33, wherein the transmission comprises a frame indicating a start of the second transmit opportunities.

35. The apparatus of claim 33, wherein the transmission comprises a block acknowledgement request for each wireless apparatus.

36. The apparatus of claim 33, wherein the transmission is transmitted via a spatial division multiple access (SDMA) scheme.

37. The apparatus of claim 33, wherein the means for receiving is configured to receive multiple acknowledgements simultaneously via a spatial division multiple access (SDMA) scheme.

38. The apparatus of claim 33, wherein the data frames comprise User Datagram Protocol (UDP) frames.

39. The apparatus of claim 33, wherein the data frames comprise Transmission Control Protocol (TCP) frames.

40. The apparatus of claim 33, wherein the data frames comprise streaming video data.

41. An apparatus for wireless communications, comprising:

means for receiving a transmission comprising a data frame during a first transmit opportunity in which multiple data frames were sent to multiple wireless apparatuses; and

means for transmitting an acknowledgement of the received data frame during a second transmit opportunity.

42. The apparatus of claim 41, wherein the transmission comprises a frame indicating a start of the second transmit opportunity.

43. The apparatus of claim 41, wherein the transmission comprises a block acknowledgement request for each wireless apparatus.

44. The apparatus of claim 41, wherein the data frames were sent simultaneously to the wireless apparatuses via a spatial division multiple access (SDMA) scheme.

45. The apparatus of claim 41, wherein the means for transmitting the acknowledgement of the received data frame is configured to transmit the acknowledgement simultaneously with acknowledgements transmitted by other wireless apparatuses.

46. The apparatus of claim 41, wherein the data frame comprises a User Datagram Protocol (UDP) frame.

47. The apparatus of claim 41, wherein the data frame comprises a Transmission Control Protocol (TCP) frame.

48. The apparatus of claim 41, wherein the data frame comprises streaming video data.

49. A computer-program product for communication, comprising a computer readable medium comprising instructions executable to:

transmit, to multiple wireless apparatuses, a transmission comprising data frames during a first transmit opportunity; and

receive, during one or more second transmit opportunities, acknowledgements of the data frames from the wireless apparatuses.

50. A computer-program product for communication, comprising a computer readable medium comprising instructions executable to:

receive a transmission comprising a data frame during a first transmit opportunity in which multiple data frames were sent to multiple wireless apparatuses; and

transmit an acknowledgement of the received data frame during a second transmit opportunity.

51. A wireless access point, comprising:

at least one antenna;

a transmitter for transmitting via the antenna, to multiple wireless apparatuses, a transmission comprising data frames during a first transmit opportunity; and

a receiver for receiving via the antenna, during one or more second transmit opportunities, acknowledgements of receipt of the data frames from the wireless apparatuses.

52. A wireless station, comprising:

at least one antenna;

a receiver for receiving via the antenna a transmission comprising a data frame during a first transmit opportunity in which multiple data frames were sent to multiple wireless apparatuses; and

a transmitter for transmitting via the antenna an acknowledgement of receipt of the data frame during a second transmit opportunity.