Station (sta), access point (ap) and method of spatial reuse

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors to perform operations for communication by a station (STA), the operations to configure the one or more processors to:

• detect, in a channel, an overlapping basic service set (OBSS) physical layer convergence procedure protocol data unit (PPDU) from an OBSS access point (AP);
• determine, based at least partly on an extended service set (ESS) color parameter included in the OBSS PPDU, whether the OBSS AP is managed by an ESS network, wherein the ESS network manages a basic service set (BSS) AP to which the STA is associated;
• select either a first set or a second set of transmission parameter values based on whether the OBSS AP is managed by the ESS network;
• determine a received OBSS power based on the detection of the OBSS PPDU;
• and
• determine, based on the selected set of transmission parameter values and the received OBSS power, an uplink transmit power to be used by the STA for an uplink transmission to the BSS AP in the channel.

A method of communication by a station (STA), the method comprising:

• decoding a trigger frame (TF) received in a channel from a basic service set (BSS) access point (AP) during a transmission opportunity (TXOP) obtained by the BSS AP, wherein the BSS AP is included in an extended service set (ESS) network;
• detecting, in the channel, an overlapping basic service set (OBSS) physical layer convergence procedure protocol data unit (PPDU) from an OBSS AP;
• determining a received OBSS power based at least partly on the OBSS PPDU;
• determining, based at least partly on an ESS color parameter included in the OBSS PPDU, whether the OBSS AP is included in the ESS network;
• if it is determined that the OBSS AP is included in the ESS network, selecting a first predetermined value for an OBSS power threshold;
• if it is determined that the OBSS AP is not included in the ESS network, selecting a second predetermined value for the OBSS power threshold;
• and
• determining, based at least partly on a comparison between the received OBSS power and the OBSS power threshold, whether to transmit an uplink PPDU to the BSS AP in the channel during the TXOP.

An apparatus of an access point (AP) configurable to operate as a basic service set (BSS) AP, the apparatus comprising:

• memory;
• and processing circuitry, configured to:
• decode one or more control messages from an extended service set (ESS) controller of an ESS network that manages the AP, wherein the control messages indicate an ESS color parameter that identifies the ESS network and further indicate a BSS color parameter that identifies the AP;
• contend for a transmission opportunity (TXOP) to obtain access to a channel;
• encode, for transmission during the TXOP, a trigger frame (TF) to schedule a transmission of a physical layer convergence procedure protocol data unit (PPDU);
• and
• encode the PPDU for transmission during the TXOP,
• wherein a high-efficiency (HE) signal (HE-SIG) field of the PPDU includes the ESS color parameter and the BSS color parameter.