Spatial reuse for uplink multiuser transmissions

1. An apparatus of a station, the apparatus comprising: a memory; and

processing circuitry coupled to the memory, wherein the processing circuitry is configured to:

decode a first portion of a physical layer convergence procedure (PLCP) protocol data unit (PPDU); and

if the PPDU is an overlapping basic service set (OBSS) PPDU, and a receive power of the PPDU is below an overlapping power detect level, configure the station to transmit a frame.

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

if the PPDU is not a non-high throughput (non-HT) frame comprising a public access frame with a receiver address field equal to a media access control (MAC) address of the station, if the PPDU is not a non-HT with a group address and the public access frame, if the PPDU is the OBSS PPDU, and if the receive power of the PPDU is below the overlapping power detect level, configure the station to transmit the frame.

3. The apparatus of claim 2 , wherein the processing circuitry is further configured to:

if the PPDU is a high efficiency (HE) multi-user (MU) PPDU and a spatial reuse field of a HE signal A (HE-SIG-A) field of the PPDU indicates spatial reuse (SR) restricted, configure the station to transmit the frame during a reception of a remaining portion of the PPDU.

4. The apparatus of claim 3 , wherein the PPDU comprises a trigger frame.

5. The apparatus of claim 3 , wherein the spatial reuse field indicates SR restricted by a value of the spatial reuse field, wherein the spatial reuse field is 2 or more bits.

6. The apparatus of claim 2 , wherein the processing circuitry is further configure to:

if the PPDU is a high efficiency (HE) single-user (SU) PPDU or an HE extended range SU PPDU, and if a spatial reuse (SR) field of a HE signal A (HE-SIG-A) field of the PPDU indicates SR delay, configure the station to transmit the frame after receiving the PPDU.

7. The apparatus of claim 6 , wherein the PPDU comprises a trigger frame, and wherein the spatial reuse field indicates SR delay by a value of the spatial reuse field, wherein the spatial reuse field is 2 or more bits.

8. The apparatus of claim 6 , wherein the station is configured to transmit the frame after the duration of the PPDU plus a delay time, wherein the delay time is one from the following group: an arbitration inter-frame space (AIFS), an extended inter-frame space (EIFS), a distributed channel access function (DCF) inter-frame space (DIFS), a point coordination function (PCF) inter-frame space (PIFS), or a short inter-frame space (SIFS).

9. The apparatus of claim 2 , wherein the processing circuitry is further configure to:

if the PPDU is a high efficiency (HE) PPDU, and a spatial reuse (SR) field indicates SR disallowed, configure the station to defer before transmitting the frame for a duration of the PPDU and a network allocation vector (NAV) duration indicated by the PPDU.

10. The apparatus of claim 2 , wherein the processing circuitry is further configure to:

if the PPDU is a high efficiency (HE) PPDU, and a spatial reuse (SR) field indicates SR allowed, configure the station to begin to transmit the frame during a duration of the PPDU.

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

if the PPDU is not a non-high throughput (non-HT) frame comprising a public access frame with a receiver address field equal to a media access control (MAC) address of the station, the PPDU is not a non-HT with a group address and the public access frame, the PPDU is the OBSS PPDU, and the receive power of the PPDU is below the overlapping power detect level, refrain from setting a network allocation vector (NAV) based on a NAV duration of a trigger frame, wherein the PPDU further comprises the trigger frame.

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

raise the overlapping power detect level and lower a transmit power for the frame, or lower the overlapping power detect level and raise the transmit power for the frame.

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

if the PPDU is the OBSS PPDU, and a receive power of the PPDU is below an overlapping power detect level, configure the station to transmit the frame, unless the PPDU indicates not to use spatial reuse.

14. The apparatus of claim 1 , wherein the station is one from the following group: an Institute of Electrical and Electronic Engineers (IEEE) 802.11ax access point, an IEEE 802.11 station, an IEEE access point, a station acting as a group owner (GO), IEEE 802.11az station, IEEE 802.11az access point, and an IEEE 802.11ax station.

15. The apparatus of claim 1 , further comprising transceiver circuitry coupled to the memory; and, one or more antennas coupled to the transceiver circuitry.

16. 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 station to:

decode a first portion of a physical layer convergence procedure (PLCP) protocol data unit (PPDU); and

if the PPDU is an overlapping basic service set (OBSS) PPDU, and a receive power of the PPDU is below an overlapping power detect level, configure the station to transmit a frame.

17. The non-transitory computer-readable storage medium of claim 16 , wherein the instructions further configure the one or more processors to cause the apparatus of station to:

configure the station to transmit the frame, if the PPDU is not a non-high throughput (non-HT) frame comprising a public access frame with a receiver address field equal to a media access control (MAC) address of the station, the PPDU is not a non-HT with a group address and the public access frame, the PPDU is the OBSS PPDU, and the receive power of the PPDU is below the overlapping power detect level.

18. The non-transitory computer-readable storage medium of claim 17 , wherein the instructions further configure the one or more processors to cause the apparatus of station to:

configure the station to transmit the frame within a duration of the PPDU, if the PPDU is a high efficiency (HE) multi-user (MU) PPDU and a spatial reuse field of a HE signal A (HE-SIG-A) field of the PPDU indicates spatial reuse (SR) restricted.

19. A method performed by an apparatus of a station, the method comprising:

decoding a first portion of a physical layer convergence procedure (PLCP) protocol data unit (PPDU); and

configuring the station to transmit a frame, if the PPDU is an overlapping basic service set (OBSS) PPDU, and a receive power of the PPDU is below an overlapping power detect level.

20. The method of claim 19 , the method further comprising:

configuring the station to transmit the frame, if the PPDU is not a non-high throughput (non-HT) frame comprising a public access frame with a receiver address field equal to a media access control (MAC) address of the station, the PPDU is not a non-HT with a group address and the public access frame, the PPDU is the OBSS PPDU, and the receive power of the PPDU is below the overlapping power detect level.

21. An apparatus of an access point comprising: a memory; and processing circuitry couple to the memory, wherein the processing circuitry is configured to:

encode a physical layer convergence procedure (PLCP) protocol data unit (PPDU) comprising a basic service set identifier of the access point;

encode the PPDU to indicate spatial reuse (SR) delay, SR restricted, or SR not permitted;

if the PPDU is a high efficiency (HE) multi-user (MU) PPDU, encode the PPDU to indicate SR restricted, and encode the PPDU to comprise a trigger frame; and

configure the access point to transmit the PPDU.

22. The apparatus of claim 21 , wherein the processing circuitry is configured to:

if the PPDU is a high efficiency (HE) single-user (SU) PPDU or a HE extended range SU PPDU, encode the PPDU to indicate SR delay, and encode the PPDU to comprise a trigger frame.

23. The apparatus of claim 20 , wherein the access point is one from the following group: an Institute of Electrical and Electronic Engineers (IEEE) 802.11ax access point, an IEEE 802.11 station, an IEEE access point, a station acting as a group owner (GO), and an IEEE 802.11ax station.

24. The apparatus of claim 20 , further comprising transceiver circuitry coupled to the memory; and, one or more antennas coupled to the transceiver circuitry.