Wireless device, method, and computer readable media for requesting and sending block acknowledgement

• US 10,219,181 B2
• Filed: 09/29/2014
• Issued: 02/26/2019
• Est. Priority Date: 09/29/2014
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Ma, Yongsen, Yang, Rongzhen, Meng, Peng, Li, Qinghua, Niu, Huaning
• Primary Examiner(s): Rizk, Samir W
• Application Number:
  US15/507,040
• Publication Number:
  US 20170280358A1
• Time in Patent Office: 1,611 Days
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1621 Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
• 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 1/187 Details of sliding window management
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 47/27 Evaluation or update of window size, e.g. using information derived from acknowledged [ACK] packets
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters

Abstract

An apparatus, method, and computer readable media for requesting and sending block acknowledgement requests (BARs) and block acknowledgments (BAs) is disclosed. A method for BARs is disclosed. The method may include transmitting data frames to two or more wireless communication devices in accordance with a multi-user multiple-input and multiple-output (MU-MIMO). The method may include transmitting block acknowledgement requests (BARs) for the transmitted data frames to the two or more wireless communication devices in accordance with MU-MIMO. The method may include receiving block acknowledges (BA) of the data frames from the two or more wireless communication devices in accordance with MU-MIMO. A method for BAs is disclosed. The method may include receiving data frames from a second wireless communication device. The method may include receiving a block acknowledgement request from the second wireless communication device The method may include sending a block acknowledgement to the second wireless communication device using MU-MIMO.

Claims

1. An apparatus of a wireless communication device, the apparatus comprising:

memory; and

processing circuitry coupled to the memory, the processing circuitry configured to;

encode a physical layer convergence protocol (PLCP) protocol data unit (PPDU) for block acknowledgement requests (BARs), the PPDU for BARs comprising data frames for two or more wireless communication devices, the data frames to be transmitted in accordance with one or both of down link (DL) multi-user multiple input and multiple output (MU-MIMO) and orthogonal frequency division multiple access (OFDMA), the PPDU for BARs further comprising an indication of which sub-channel each of the two or more wireless communications devices should use to transmit block acknowledgements (BAs) to the data frames;

generate signaling to cause the wireless communication device to transmit the PPDU for BARs to the two or more wireless communication devices in accordance with one or both of MU-MIMO and DL OFDMA; and

decode block acknowledgements (BA) of the data frames from the two or more wireless communication devices in accordance with the sub-channel each of the two or more wireless communications devices should use and one or both of uplink (UL) MU-MIMO and OFDMA.

2. The wireless communication device of claim 1, wherein the BARs are included in a packet to be sent to each of the two or more wireless communication devices.

3. The wireless communication device of claim 1, wherein the BARs are each to be sent in separate packets to each of the two or more wireless communication devices.

4. The wireless communication device of claim 1, wherein the wireless communication device is an access point.

5. The wireless communication device of claim 1, wherein the processing circuitry is further to:

transmit a legacy preamble that comprises an indication of a duration of time to reserve a wireless medium, wherein the duration of time includes at least a time for the to two or more wireless communication devices to transmit the BAs of the data frames.

6. The wireless communication device of claim 1, wherein the processing circuitry is further to:

transmit a BAR preamble to each of the two or more wireless communication devices in accordance with DL MU-MIMO.

7. The wireless communication device of claim 1, wherein the processing circuitry is further to:

transmit a different MU BAR preamble to each of the two or more wireless communication devices in accordance with DL MU-MIMO.

8. The wireless communication device of claim 1, wherein the processing circuitry is further to:

transmit an indication to each of the two or more wireless communication devices to transmit the BA on the same subchannel the two or more wireless communication devices are to receive the BAR.

9. The wireless communication device of claim 1, wherein the processing circuitry is further to:

transmit an indication to each of the two or more wireless communication devices to transmit the BA after waiting a Short Inter-Frame Space (SIFS).

10. The wireless communication device of claim 1, further comprising a memory and at least one radio.

11. The wireless communication device of claim 10, further including at least one antenna.

12. A method on a wireless communication device, the method comprising:

encoding a physical layer convergence protocol (PLCP) protocol data unit (PPDU) for block acknowledgement requests (BARs), the PPDU for BARs comprising data frames for two or more wireless communication devices, the data frames to be transmitted in accordance with one or both of down link (DL) multi-user multiple input and multiple output (MU-MIMO) and orthogonal frequency division multiple access (OFDMA), the PPDU for BARs further comprising an indication of which sub-channel each of the two or more wireless communications devices should use to transmit block acknowledgements (BAs) to the data frames;

generating signaling to cause the wireless communication device to transmit the PPDU for BARs to the two or more wireless communication devices in accordance with one or both of MU-MIMO and DL OFDMA; and

decoding block acknowledgements (BA) of the data frames from the two or more wireless communication devices in accordance with the sub-channel each of the two or more wireless communications devices should use and one or both of uplink (UL) MU-MIMO and OFDMA.

13. The method of claim 12, wherein the BARs are included in a packet sent to each of the two or more wireless communication devices.

14. The method of claim 12, wherein the BARs are each sent in separate packets to the two or more wireless communication devices.

15. A first wireless communication device, the first wireless communication device comprising processing circuitry to:

decode a physical layer convergence protocol (PLCP) protocol data unit (PPDU) for block acknowledgement requests (BARs), the PPDU for BARs comprising data frames from a second wireless communication device, wherein the data frame are received in accordance with down-link (DL) MU-MIMO and orthogonal frequency division multiple access (OFDMA);

the PPDU for BARs further comprising a block acknowledgement request (BAR), the BAR comprising an indication of a sub-channel for the first wireless communication device to transmit a block acknowledgement (BA) of the received data frames to the second wireless communication device; and

in response to the received BAR, transmit the BA to the second wireless communication device in accordance with up-link (UL) MU-MIMO and OFDMA.

16. The first wireless communication device of claim 15, wherein the BAR comprises a BAR for the first wireless communication device and for at least one other wireless communication device.

17. The first wireless communication device of claim 15, wherein the processing circuitry is further to:

transmit the BA following a Short Inter-Frame Space (SIFS); and

wherein the first wireless communication device operates in accordance with at least one from the following group;

802.11ax and Densify.

18. The first wireless communication device of claim 15, further comprising a memory and at least one radio.

19. The wireless communication device of claim 18, further including at least one antenna.

20. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors to perform operations for block acknowledgement (BAs), the instructions comprising:

encoding a physical layer convergence protocol (PLCP) protocol data unit (PPDU) for block acknowledgement requests (BARs), the PPDU for BARs comprising data frames for two or more wireless communication devices, the data frames to be transmitted in accordance with one or both of down link (DL) multi-user multiple input and multiple output (MU-MIMO) and orthogonal frequency division multiple access (OFDMA), the PPDU for BARs further comprising an indication of which sub-channel each of the two or more wireless communications devices should use to transmit block acknowledgements (BAs) to the data frames;

generating signaling to cause the wireless communication device to transmit the PPDU for BARs, to the two or more wireless communication devices in accordance with one or both of MU-MIMO and DL OFDMA; and

decoding block acknowledgements (BA) of the data frames from the two or more wireless communication devices in accordance with the sub-channel each of the two or more wireless communications devices should use and one or both of uplink (UL) MU-MIMO and OFDMA.

21. The non-transitory computer-readable storage medium of claim 20, wherein the BARs are included in a packet sent to each of the two or more wireless communication devices.