CPC H04W 74/0816 (2013.01) [H04B 7/0452 (2013.01); H04B 17/318 (2015.01); H04L 5/0007 (2013.01); H04W 4/06 (2013.01); H04W 72/21 (2023.01); H04W 74/004 (2013.01); H04W 76/11 (2018.02); H04W 84/12 (2013.01)] | 19 Claims |
1. A method for communicating in a wireless local area network (WLAN), the method comprising:
receiving, at a communication device via a wireless communication medium, a physical layer (PHY) data unit having a PHY preamble;
determining, at the communication device, a value of a basic service set (BSS) color identifier in the PHY preamble;
performing, at the communication device, a clear channel assessment (CCA) procedure to determine whether the communication device can perform a spatial reuse transmission via the wireless communication medium during reception of the PHY data unit, including:
determining whether the BSS color identifier is a color value corresponding to all of multiple virtual APs implemented by a physical access point (AP), and
selectively determining whether the communication device can perform the spatial reuse transmission during reception of the PHY data unit, including:
in response to determining that the value of the BSS color identifier is the color value corresponding to all of the multiple virtual APs implemented by the physical AP, comparing the energy level of the PHY data unit to a first threshold, and determining that the communication device can perform the spatial reuse transmission during the reception of the PHY data unit based on whether the energy level of the PHY data unit is below the first threshold, and
in response to determining that the value of the BSS color identifier is not the color value corresponding to all of the multiple virtual APs implemented by the physical AP, comparing the energy level of the PHY data unit to a second threshold that is higher than the first threshold, and determining that the communication device can perform the spatial reuse transmission during the reception of the PHY data unit based on whether the energy level of the PHY data unit is below the second threshold; and
when performing the CCA procedure determines that the communication device can perform the spatial reuse transmission during reception of the PHY data unit, transmitting, by the communication device, via the wireless communication medium during reception of the PHY data unit.
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