Determining a network allocation vector setting and a response to a multi-user transmission opportunity

Patent metadata

Field	Value
Publication number	US-10455499-B2
Application number	US-201815913207-A
Country	US
Kind code	B2
Filing date	Mar 6, 2018
Priority date	Jul 1, 2015
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

Methods, computer readable media, and wireless apparatuses are disclosed. The apparatus comprising a memory and processing circuitry coupled to the memory. The processing circuitry is configured to: associate with a master station, decode a trigger frame or a multi-user request-to-send (MU-RTS) frame from the master station, where the trigger frame or the MU-RTS frame comprises a first duration and a transmitter address, and respond to the trigger frame or the MU-RTS frame if a network allocation vector (NAV) is not set, or if the NAV is set and a saved transmission opportunity (TXOP) holder address for the NAV is the same as the transmitter address of the MU-RTS or trigger frame and the trigger frame or MU-RTS indicates the station is to respond.

First claim

What is claimed is:

1. An apparatus of a high-efficiency (HE) access point (AP), the apparatus comprising: memory; and processing circuitry coupled to the memory, the processing circuitry configured to:
encode a trigger frame for multi-user request-to-send (MU-RTS), the trigger frame comprising a plurality of HE station (STA) fields, each HE STA field of the plurality of HE STA fields comprising an association identification (AID) of a HE STA and a corresponding channel allocation for the HE STA identified by the AID,
the trigger frame to solicit from each HE STA of a plurality of HE STAs identified by the plurality of HE STA fields simultaneous clear-to-send (CTS) frame responses on 20 MHz channels , the 20 MHz channels indicated by the corresponding channel allocation;
generate signaling to cause the HE AP to transmit the trigger frame;
encode another trigger frame, the another trigger frame comprising downlink (DL) data for one or more of the plurality of HE STAs and further comprising UL resource allocations for the one or more of the plurality of HE STAs;
generate signaling to cause the HE AP to transmit the another trigger frame to the one or more of the plurality of HE STAs; and
decode UL frames from the one or more of the plurality of HE STAs, wherein the decoding is in accordance with the UL resource allocations, and wherein the UL frames comprise acknowledgements of the DL data.

2. The apparatus of claim 1 , wherein the processing circuitry is further configured to:
decode the simultaneous CTS frame responses from each HE STA of the plurality of HE STAs.

3. The apparatus of claim 1 , wherein the processing circuity is further configured to: encode the trigger frame to include a duration field, wherein a value of the duration field is set to a duration to include time for the plurality of HE STAs to transmit the CTS frame responses.

4. The apparatus of claim 3 , wherein the trigger frame is to solicit the plurality of HE STAs to encode a value of a duration field of the CTS frame responses based on the value of the duration field of the trigger frame.

5. The apparatus of claim 1 , wherein the processing circuity is further configured to: encode the trigger frame to comprise a receiver address field, wherein a value of the receiver address field is set to a broadcast address.

6. The apparatus of claim 1 , wherein the trigger frame is to solicit the plurality of HE STAs to respond with legacy CTS frames.

7. The apparatus of claim 1 , wherein the processing circuity is further configured to: encode the trigger frame to include a duration field, wherein a value of the duration field is set to a duration to include time for the plurality of HE STAs to transmit the UL frame.

8. The apparatus of claim 1 , wherein the processing circuity is further configured to: encode the another trigger frame to include a duration field, wherein a value of the duration field is set to a duration to include time for the plurality of HE STAs to transmit the UL frames.

9. The apparatus of claim 1 , wherein the processing circuitry is configured to:
simultaneously receive the UL frames from the one or more of the plurality of HE STAs.

10. The apparatus of claim 9 , wherein the simultaneously receive the UL frames further comprises:
simultaneously receive the UL frames in accordance with at least one from the following group: multi-user multiple-input multiple-output (MU-MIMO) and orthogonal frequency division multiple-access (OFDMA).

11. The apparatus of claim 1 , wherein each of the plurality of HE STAs and the HE AP are each one from the following group: an Institute of Electrical and Electronic Engineers (IEEE) 802.11ax access point, an IEEE 802.11ax station, an IEEE 802.11 station, and an IEEE 802.11 access point.

12. The apparatus of claim 1 , herein the corresponding channel allocation indicates one of a primary 20 MHz channel that indicates one 20 MHz channel; a primary 40 MHz channel that indicates two 20 MHz channels; a primary 80 MHz channel that indicates four 20 MHz channels; a 160 MHz channel that indicates eight 20 MHz channels; or a 80+80 MHz channel that indicates eight 20 MHz channels.

13. The apparatus of claim 1 , further comprising transceiver circuitry coupled to the processing circuitry; 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 of an apparatus of a high-efficiency (HE) access point (AP), the instructions to configure the one or more processors to:
encode a trigger frame for multi-user request-to-send (MU-RTS), the trigger frame comprising a plurality of HE station (STA) fields, each HE STA field of the plurality of HE STA fields comprising an association identification (AID) of a HE STA and a corresponding channel allocation for the HE STA identified by the AID,
the trigger frame to solicit from each HE STA of a plurality of HE STAs identified by the plurality of HE STA fields simultaneous clear-to-send (CTS) frame responses on 20 MHz channels, the 20 MHz channels indicated by the corresponding channel allocation;
generate signaling to cause the HE AP to transmit the trigger frame;
encode another trigger frame, the another trigger frame comprising downlink (DL) data for one or more of the plurality of HE STAs and further comprising UL resource allocations for the one or more of the plurality of HE STAs;
generate signaling to cause the HE AP to transmit the another trigger frame to the one or more of the plurality of HE STAs; and
decode UL frames from the one or more of the plurality of HE STAs, wherein the decoding is in accordance with the UL resource allocations, and wherein the UL frames comprise acknowledgements of the DL data.

15. The non-transitory computer-readable storage medium of claim 14 , wherein the instructions further configure the one or more processors to:
decode the simultaneous CTS frame responses from each HE STA of the plurality of HE STAs.

16. A method performed by an apparatus of a high-efficiency (HE) access point (AP), the method comprising:
encoding a trigger frame for multi-user request-to-send (MU-RTS), the trigger frame comprising a plurality of HE station (STA) fields, each HE STA field of the plurality of HE STA fields comprising an association identification (AID) of a HE STA and a corresponding channel allocation for the HE STA identified by the AID,
the trigger frame to solicit from each HE STA of a plurality of HE STAs identified by the plurality of HE STA fields simultaneous clear-to-send (CTS) frame responses on 20 MHz channels , the 20 MHz channels indicated by the corresponding channel allocation;
generating signaling to cause the HE AP to transmit the trigger frame;
encoding another trigger frame, the another trigger frame comprising downlink (DL) data for one or more of the plurality of HE STAs and further comprising UL resource allocations for the one or more of the plurality of HE STAs;
generating signaling to cause the HE AP to transmit the another trigger frame to the one or more of the plurality of HE STAs; and
decoding UL frames from the one or more of the plurality of HE STAs, wherein the decoding is in accordance with the UL resource allocations, and wherein the UL frames comprise acknowledgements of the DL data.

17. The method of claim 16 , wherein the method further comprises:
decoding the simultaneous CTS frame responses from each HE STA of the plurality of HE STAs.

18. An apparatus of a high-efficiency (HE) station (STA), the apparatus com

Assignees

• Intel Ip Corp

Inventors

• Huang Po-Kai
• Stacey Robert J
• Ghosh Chittabrata
• Cariou Laurent
• Li Qinghua

Classifications

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04W74/02

  Hybrid access · CPC title

• H04W74/006

  in the downlink, i.e. towards the terminal · CPC title

• H04W48/20

  Selecting an access point · CPC title

• H04B7/0452

  Multi-user MIMO systems · CPC title