[11AX] conditions for spatial reuse using joint TPC and CCA
View Patent ↗An exemplary aspect is directed toward methods, apparatus, and systems related to spatial reuse with overlapping basic service set. A device may determine an overlapping basic service set (OBSS) associated with one or more access points. The device may then reduce a transmit power by a first margin. The device may then increase a packet detection threshold associated with the OBSS by a second margin. The device then sends an uplink data frame to at least one of the one or more access points.
1. A wireless system, comprising:
at least one memory that stores computer-executable instructions; and
at least one processor configured to access the at least one memory, wherein the at least one processor is configured to execute the computer-executable instructions to:
determine an overlapping basic service set (OBSS) associated with one or more access points;
reduce a transmit power of a transceiver by a first margin at least based on the determined OBSS;
increase, in conjunction with the reduction of the transmit power, a packet detection threshold associated with the OBSS by at least a second margin for spatial reuse of a wireless medium; and
reduce transmit power for an uplink data frame to be sent to at least one of the one or more access points, wherein the transmit power for the uplink data frame is adjusted by a power management device for at least one of the one or more access points to avoid interference with reception of an ongoing OBSS data unit to the transceiver.
2. The system of claim 1 , wherein the at least one processor is further configured with a minimum receive sensitivity level.
3. The system of claim 1 , wherein the instructions increase a packet detection threshold when the packet is identified as being from another basic service set (BSS).
4. The system of claim 2 , wherein the second margin is a receive power margin plus a predetermined power threshold.
5. The system of claim 1 , wherein spatial reuse criteria are defined in one or more frames.
6. The system of claim 1 , wherein the system is configured to transmit the uplink data frame via one or more antennas coupled to a transceiver.
7. The system of claim 1 , further comprising MAC circuitry that receives the ongoing OBSS data unit.
8. The system of claim 1 , wherein a power reduction by a value plus a margin is applied to a maximum operating power.
9. The system of claim 1 , wherein a transmit power adjustment and CCA (Clear Channel Assessment) are used to reuse a spectrum when certain conditions are met.
10. The system of claim 1 , wherein spatial reuse information is in a HE-SIG-A field in a physical layer (PITY) header.
11. A method of operating a wireless communications system comprising:
determining an overlapping basic service set (OBSS) associated with one or more access points;
reducing a transmit power of transceiver by a first margin at least based on the determined OBSS;
increasing, in conjunction with the reduction of the transmit power, a packet detection threshold associated with the OBSS by a second margin for spatial reuse of the medium; and
reducing transmit power for an uplink data frame to be sent to at least one of the one or more access points, wherein the transmit power for the uplink data frame is adjusted for at least one of the one or more access points to avoid interference with reception of an ongoing OBSS data unit to the transceiver.
12. The method of claim 11 , further comprising configuring the system with a minimum receive sensitivity level.
13. The method of claim 11 , wherein instructions increase a packet detection threshold when the packet is identified as being from another basic service set (BSS).
14. The method of claim 12 , wherein the second margin is a receive power margin plus a predetermined power threshold.
15. The method of claim 14 , wherein spatial reuse criteria are defined in one or more frames.
16. The method of claim 11 , further comprising receiving the ongoing OBSS data unit.
17. The method of claim 11 , further comprising transmitting the uplink data frame via one or more antennas.
18. The method of claim 11 , further comprising applying a power reduction of a value plus a margin to a maximum operating power.
19. The method of claim 11 , wherein spatial reuse information is in a HE-SIG-A field in a physical layer (PHY) header.
20. A non-transitory computer-readable information storage media, having stored thereon instructions, that when executed by a processor, perform a method for operating a wireless communications system, comprising:
determining an overlapping basic service set (OBSS) associated with one or more access points;
reducing a transmit power of a transceiver by a first margin at least based on the determined OBSS;
increasing, in conjunction with the reduction of the transmit power, a packet detection threshold associated with the OBSS by a second margin for spatial reuse of the medium; and
reducing transmit power for an uplink data frame to be sent to at least one of the one or more access points, wherein the transmit power for the uplink data frame is adjusted for at least one of the one or more access points to avoid interference with reception of an ongoing OBSS data unit to the transceiver.