Mechanism for grouping a neighboring access point (AP) in a spatial reuse group (SRG)
This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for enabling a neighboring access point (AP) to reuse communication resources that are used by an existing spatial reuse group (SRG). In one aspect, an SR element including SR information can be generated. The SR information may indicate that a first group of STAs associated with a second AP may reuse resources of a wireless medium over which packets are transmitted by a second group of STAs associated with the first AP and may indicate a permitted OBSS threshold value for reuse of the resources over the first AP. In some implementations, a wireless apparatus may transmit the SR element that includes the SR information.
1. A method of wireless communication for a first access point (AP), comprising:
generating a spatial reuse (SR) element that includes SR information, the SR information indicating that a first group of stations (STAs) associated with a second AP is allowed to reuse resources that are used for packets transmitted by a second group of STAs associated with the first AP and indicating at least one first permitted overlapping basic service set (OBSS) threshold value for reuse of the resources over the first AP;
transmitting the SR element that includes the SR information;
receiving a first message from the second AP, the first message indicating that the second AP complies with the at least one first permitted OBSS threshold value; and
including the second AP in a spatial reuse group (SRG) associated with the first AP.
2. The method of claim 1 , wherein the SR element is carried in one of a beacon, a probe response, an action frame, a beacon report request, or a beacon report response.
3. The method of claim 1 , wherein the SR element further comprises an SR group (SRG) identifier field.
4. The method of claim 3 , wherein an SRG identifier associated with the first AP is included in the SRG identifier field when the at least one first permitted OBSS threshold value included in the SR information is associated with a plurality of different SR groups (SRGs).
5. The method of claim 1 , wherein the SR element is an SR permission element.
6. The method of claim 1 , wherein the SR information is included in an SR parameter set element.
7. The method of claim 1 , wherein the SR information indicates a partial basic service set identification (BSSID) bitmap.
8. The method of claim 1 , wherein the SR information indicates color information for at least an SR group comprising the first AP.
9. The method of claim 1 wherein the first message indicates that the second AP intends to reuse the resources with the first AP.
10. The method of claim 1 , further comprising:
receiving at least one second OBSS threshold value for reuse of the resources over the second AP in the first message from the second AP;
updating the at least one first permitted OBSS threshold value to match the at least one second OBSS threshold value; and
transmitting a second message to the second AP indicating the updated at least one first permitted OBSS threshold value.
11. The method of claim 1 , further comprising:
receiving an SR information request from the second AP, wherein the SR element is generated in response to the SR information request.
12. A method of wireless communication for a first access point (AP), comprising:
receiving, from a second AP, a spatial (SR) element that includes SR information, the SR information comprising at least one first permitted overlapping basic service set (OBSS) threshold value for reuse of resources that are used for packets transmitted by the second AP;
determining if the at least one first permitted OBSS threshold value meets a transmission criterion;
transmitting a first message to the second AP, the first message indicating that the second AP complies with the at least one first permitted OBSS threshold value upon determining that the at least one first permitted OBSS threshold value meets the transmission criterion; and
joining a spatial reuse group (SRG) associated with the second AP.
13. The method of claim 12 , wherein the SR element is carried in a beacon, a probe response, an action frame, a beacon report request, or a beacon report response.
14. The method of claim 12 , wherein the SR element further includes a spatial reuse group (SRG) identifier field.
15. The method of claim 14 , wherein an SRG identifier associated with the second AP is included in the SRG identifier field when the at least one first permitted OBSS threshold value included in the SR information is associated with a plurality of different SR groups (SRGs).
16. The method of claim 12 , wherein the SR information is included in an SR permission element.
17. The method of claim 12 , wherein the SR information is included an SR parameter set element.
18. The method of claim 12 , wherein the transmission criterion is associated with one or more of an interference level or transmission power.
19. The method of claim 12 , wherein the first message indicates that the first AP intends to reuse the resources over the second AP.
20. The method of claim 12 , further comprising:
indicating at least one second OBSS threshold value for reuse of the resources over the first AP in the first message to the second AP; and
receiving a second message from the second AP indicating an updated at least one first permitted OBSS threshold value.
21. The method of claim 12 , further comprising:
transmitting an SR information request to the second AP, wherein the SR element is received in response to the SR information request; and
monitoring for the SR element.
22. An apparatus for wireless communication for a first access point (AP), comprising:
a memory; and
at least one processor coupled to the memory and configured to:
generate a spatial reuse (SR) element that includes SR information, the SR information indicating that a first group of stations (STAs) associated with a second AP is allowed to reuse resources that are used for packets transmitted by a second group of STAs associated with the first AP and indicating at least one first permitted overlapping basic service set (OBSS) threshold value for reuse of the resources over the first AP;
a first interface configured to transmit the SR element that includes the SR information;
a second interface configured to receive a first message from the second AP, the first message indicating that the second AP complies with the at least one first permitted OBSS threshold value; and
include the second AP in a spatial reuse group (SRG) associated with the first AP.
23. The apparatus of claim 22 , wherein the SR element is carried in a beacon, a probe response, an action frame, a beacon report request, or a beacon report response, the SR element further comprises an spatial reuse group (SRG) identifier field, and
an SRG identifier associated with the first AP is included in the SRG identifier field when the at least one first permitted OBSS threshold value included in the SR information is associated with a plurality of different SR groups (SRGs).
24. The apparatus of claim 22 wherein
the first message indicates that the second AP intends to reuse the resources with the first AP.
25. The apparatus of claim 22 , wherein the second interface is further configured to receive at least one second OBSS threshold value for reuse of the resources over the second AP in the first message from the second AP,
wherein the at least one processor is further configured to update the at least one first permitted OBSS threshold value to match the at least one second OBSS threshold value, and
wherein the first interface is further configured to transmit a second message to the second AP indicating the updated at least one first permitted OBSS threshold value.
26. The apparatus of claim 22 , wherein the second interface is configured to receive an SR information request from the second AP, wherein the SR element is generated in response to the SR information request.
27. An apparatus for wireless communication for a first access point (AP), comprising:
a memory; and
a first interface configured to receive, from a second AP, a spatial reuse (SR) element that includes SR information, the SR information comprising at least one first permitted overlapping basic service set (OBSS) threshold value for reuse of resources that are used for packets transmitted by the first AP;
at least one processor coupled to the memory and configured to determine if the at least one first permitted OBSS threshold value meets a transmission criterion; and
a second interface configured to transmit a first message to the second AP, the first message indicating that the second AP complies with the at least one first permitted OBSS threshold value upon determining that the at least one first permitted OBSS threshold value meets the transmission criterion; and
join a spatial reuse group (SRG) associated with the second AP.
28. The apparatus of claim 27 , wherein the second interface is further configured to:
first message indicates that the first AP intends to reuse the resources over the second AP.
29. The apparatus of claim 27 , wherein the second interface is further configured to indicate at least one second OBSS threshold value for reuse of the resources over the first AP in the first message to the second AP, and
wherein the first interface is further configured to receive a second message from the second AP indicating an updated at least one first permitted OBSS threshold value.
30. The apparatus of claim 27 , wherein the second interface is further configured to transmit an SR information request to the second AP, wherein the SR element is received in response to the SR information request, and
wherein the at least one processor is further configured to monitor for the SR element.