High-efficiency wireless local-area network devices and methods for acknowledgements during scheduled transmission opportunities

• US 10,348,457 B2
• Filed: 07/10/2017
• Issued: 07/09/2019
• Est. Priority Date: 07/15/2014
• Status: Active Grant

• Current Assignee: Ax Wireless LLC (SY Ventures)
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Li, Guoqing C., Stacey, Robert J.
• Primary Examiner(s): Lo, Diane L
• Application Number:
  US15/644,937
• Publication Number:
  US 20170359152A1
• Time in Patent Office: 729 Days
• Field of Search: None
• 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: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Embodiments of a system and method for acknowledging frames in a wireless network are generally described herein. In some embodiments, a wireless communication device may include a transmit/receive unit configured to receive data from a sender. In some embodiments, the transmit/receive unit may be configured to receive a schedule. The transmit/receive unit may be further configured to acknowledge (ACK) the data in a first scheduled transmission to the sender. The first scheduled transmission to the sender may be determined based on the schedule. In some embodiments, the acknowledgement may be an acknowledgement frame or a block acknowledgment frame. The scheduled transmission to the sender may be determined based on the schedule.

Claims

1. An apparatus of a high efficiency (HE) station, the apparatus comprising:

memory; and

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

decode a multi-user (MU) physical-layer convergence procedure protocol data unit (MU PPDU) from an access point (AP), the MU PPDU comprising a first schedule, the first schedule indicating a sub-channel for the HE station to receive data, the MU PPDU comprising the data, the data comprising one or more packets, and a second schedule, the second schedule indicating a sub-channel and length for transmission of an uplink (UL) MU PPDU to the AP;

decode the data in accordance with the first schedule; and

configure the HE station to transmit the UL MU PPDU, the UL MU PPDU comprising an acknowledgement of the one or more packets, wherein the UL MU PPDU is to be transmitted in accordance with the second schedule.

2. The apparatus of claim 1, wherein the first schedule further indicates one or more additional sub-channels for one or more additional HE stations to receive one or more additional data.

3. The apparatus of claim 1, wherein the first schedule further comprises an indication of whether the data is to be received in accordance with MU multiple-input multiple-output (MU-MIMO), orthogonal frequency division multiple access (OFDMA), or both MUMIMO and OFDMA.

4. The apparatus of claim 1, wherein the acknowledgement is a block acknowledgement.

5. The apparatus of claim 1, the processing circuitry is configured to:

decode an acknowledgement policy from the first schedule or the second schedule, wherein the acknowledgement policy indicates the one or more frames are to be acknowledged in the UL MU PPDU.

6. The apparatus of claim 1, configure the station to transmit the UL MU PPDU a short interframe space (SIFS) after the MU PPDU is received.

7. The apparatus of claim 1, wherein the second schedule further comprises an indication of whether the UL MU PPDU is to be transmitted in accordance with MU multiple-input multiple-output (MU-MIMO), orthogonal frequency division multiple access (OFDMA), or both MU-MIMO and OFDMA.

8. The apparatus of claim 1, wherein the processing circuitry is further configured to:

configure the HE station to transmit the UL MU PPDU in accordance with the second schedule in a first scheduled UL transmission.

9. The apparatus of claim 1, wherein the MU PPDU from the AP is to be received in a transmission opportunity (TXOP) and wherein the UL MU PPDU is to be transmitted in the TXOP.

10. The apparatus of claim 1, wherein the MU PPDU further comprises a duration for the data.

11. The apparatus of claim 1, wherein the processing circuitry is further to:

decode a packet, the packet comprising an acknowledgement policy, wherein the acknowledgement policy indicates the one or more frames are to be acknowledged in the UL MU PPDU.

12. The apparatus of claim 1, wherein the memory is configured to store the MU PPDU and the UL MU PPDU.

13. The apparatus of claim 1 further comprising transceiver circuitry coupled to the memory;

and

one or more antennas coupled to the transceiver circuitry.

14. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors, the instructions to configure the one or more processors to cause an apparatus of a high-efficiency (HE) station to:

decode a multi-user (MU) physical-layer convergence procedure protocol data unit (MU PPDU) from an access point (AP), the MU PPDU comprising a first schedule, the first schedule indicating a sub-channel for the HE station to receive data, the MU PPDU comprising the data, the data comprising one or more packets, and a second schedule, the second schedule indicating a sub-channel and length for transmission of an uplink (UL) MU PPDU to the AP;

decode the data in accordance with the first schedule; and

configure the HE station to transmit the UL MU PPDU, the UL MU PPDU comprising an acknowledgement of the one or more packets, wherein the UL MU PPDU is to be transmitted in accordance with the second schedule.

15. The apparatus of claim 14, wherein the first schedule further comprises one or more additional sub-channels for one or more additional HE stations to receive one or more additional data.

16. The apparatus of claim 14, wherein the first schedule further comprises an indication of whether the data is to be received in accordance with MU multiple-input multiple-output (MU-MIMO), orthogonal frequency division multiple access (OFDMA), or both MUMIMO and OFDMA.

17. A method performed by an apparatus of a high-efficiency (HE) station, the method comprising:

decoding a multi-user (MU) physical-layer convergence procedure protocol data unit (MU PPDU) from an access point (AP), the MU PPDU comprising a first schedule, the first schedule indicating a sub-channel for the HE station to receive data, the MU PPDU comprising the data, the data comprising one or more packets, and a second schedule, the second schedule indicating a sub-channel and length for transmission of an uplink (UL) MU PPDU to the AP;

decoding the data in accordance with the first schedule; and

configuring the HE station to transmit the UL MU PPDU, the UL MU PPDU comprising an acknowledgement of the one or more packets, wherein the UL MU PPDU is to be transmitted in accordance with the second schedule.

18. The method of claim 17, wherein the first schedule further comprises one or more additional sub-channels for one or more additional HE stations to receive one or more additional data.

19. An apparatus of a high-efficiency (HE) access point (AP), the apparatus comprising:

memory, and processing circuitry configured to;

encode a multi-user (MU) physical-layer convergence procedure protocol data unit (MU PPDU), the MU PPDU comprising a first schedule, the first schedule indicating sub-channels for HE stations to receive data, the data comprising one or more packets, the MU PPDU comprising the data, the MU PPDU comprising a second schedule, the second schedule comprising a length field indicating an uplink (UL) physical layer convergence procedure (PLCP) protocol data unit (PPDU) (UL-PPDU) response length, the second schedule further indicating second sub-channels for HE stations;

configure the HE AP to transmit the MU PPDU; and

decode UL-PPDU responses from one or more HE stations of the HE stations, wherein a length of each of the UL-PPDU responses corresponds to the UL-PPDU response length, and wherein each of the UL-PPDU responses comprises an acknowledgement of one or more packets.

20. The apparatus of claim 19, wherein the acknowledgement of one or more packets acknowledges the one or more packets being successfully received by a corresponding HE station of the one or more HE stations.

21. The apparatus of claim 19, wherein the acknowledgment of one or more packets is a block acknowledgment of packets.

22. The apparatus of claim 19, wherein the second schedule comprises an indication of how long other stations should set a network allocation vector (NAV).

23. The apparatus of claim 19, wherein one or more of the UL-PPDU responses comprises UL data for the HE AP.

24. The apparatus of claim 19, wherein the processing circuitry is further configured to:

encode a packet comprising an acknowledgment policy for the HE stations; and

configure the HE AP to transmit the packet, wherein the acknowledgment policy indicates that the HE stations are to acknowledge received packets in a first packet to the HE AP.

25. The apparatus of claim 19, the apparatus further comprising transceiver circuitry coupled to the memory;

and, one or more antennas coupled to the transceiver circuitry.