US 12,262,210 B2
Dynamic configuration of overlapping basic service set preamble detect (OBSS PD) parameters for access points
Pooya Monajemi, San Jose, CA (US); Benjamin Jacob Cizdziel, San Jose, CA (US); and Vishal Satyendra Desai, San Jose, CA (US)
Assigned to Cisco Technology, Inc.
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Mar. 15, 2023, as Appl. No. 18/184,291.
Application 18/184,291 is a continuation of application No. 17/155,974, filed on Jan. 22, 2021, granted, now 11,611,884.
Prior Publication US 2023/0217258 A1, Jul. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 16/10 (2009.01); H04B 17/318 (2015.01); H04B 17/336 (2015.01); H04W 24/02 (2009.01)
CPC H04W 16/10 (2013.01) [H04B 17/318 (2015.01); H04B 17/336 (2015.01); H04W 24/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining, by a computing device, a plurality of stations within a Spatial Reuse (SR) range of an Access Point (AP);
performing Signal to Interference plus Noise Ratio (SINR) calculations associated with the plurality of stations to determine an SINR impact on the plurality of stations if the AP performs an SR transmission given Overlapping Basic Set Service Preamble Detect (OBSS/PD) parameters currently configured for the AP, wherein performing the SINR calculations comprises:
creating a first distribution using a first subset of Received Signal Strength Indicator (RSSI) metrics indicating a signal power at which the plurality of stations receive intended packets,
creating a second distribution using a second subset of RSSI metrics indicating an interference power generated at the plurality of stations if the AP performs the SR transmission,
obtaining, from the first distribution, a first RSSI value that is representative of the signal power experienced by the plurality of stations,
obtaining, from the second distribution, a second RSSI value that is representative of the interference power experienced by the plurality of stations,
calculating an SINR value using the first RSSI value and the second RSSI value,
comparing the SINR value to a target SINR value; and
based on the SINR calculations, dynamically adjusting the OBSS/PD parameters for the AP.