# US 12,764,674 B2 · OBSS PD threshold adaptation based on environmental context and feedback > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,764,674 B2 - Document ID: US12764674B2 - Status: Granted - Kind: B2 - Application number: 18/531,598 - Filed: 2023-12-06 - Published: 2024-08-15 - Granted: 2026-10-13 - Earliest claimed: 2023-02-14 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Abhishek Sehgal; Hao Chen; Boon Loong Ng; Vutha Va; Vishnu Vardhan Ratnam - Web page: https://patentgrep.com/patent/US12764674B2 ## CPC - H04W 52/243: {taking into account interferences} - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods and apparatuses for Overlapping Basic Service Set (OBSS) preamble detection (PD) threshold adaptation. A method of wireless communication performed by a station (STA) comprises: determining whether the STA changed an overlapping basic service set (OBSS) packet detection (PD) threshold for spatial reuse (SR); obtaining, based on determining that the STA changed the OBSS PD threshold for SR, feedback information for performance indicators associated with the STA; and updating the OBSS PD threshold for SR based on the feedback information. ## Claims ### Claim 1 A method of wireless communication performed by a station (STA), the method comprising: determining whether the STA changed an overlapping basic service set (OBSS) packet detection (PD) threshold for spatial reuse (SR); obtaining, based on determining that the STA changed the OBSS PD threshold for SR, feedback information for performance indicators associated with the STA; measuring an impact that changing the OBSS PD threshold has on the performance indicators associated with the STA; and updating the OBSS PD threshold for SR based on the feedback information and the measured impact. ### Claim 2 (depends on 1) The method of claim 1, wherein the feedback information is associated with at least one of a throughput of the STA, a number of physical layer protocol data units (PPDUs), a number of SR PPDUs, and a modulation coding scheme (MCS). ### Claim 3 (depends on 1) The method of claim 1, wherein the feedback information comprises control parameters or rewards used to adapt the OBSS PD threshold for SR. ### Claim 4 (depends on 3) The method of claim 3, further comprising using a multi-armed bandit procedure to maximize a reward value used to adapt the OBSS PD threshold for SR. ### Claim 5 (depends on 3) The method of claim 3, further comprising using an upper confidence bound procedure to maximize a reward value used for the updating of the OBSS PD threshold for SR. ### Claim 6 (depends on 3) The method of claim 3, further comprising using a Thompson Sampling, Epsilon Greedy, or Gaussian Process Upper Confidence Bound procedure to maximize a reward value used to adapt the OBSS PD threshold for SR. ### Claim 7 (depends on 1) The method of claim 1, further comprising: obtaining, based on transmissions from nodes in at least one of a basic service set (BSS) or an overlapping BSS (OBSS), network context information for a network environment around an access point (AP) associated with the STA; and updating the OBSS PD threshold for SR based on the network context information, the feedback information, and the measured impact. ### Claim 8 A station (STA) comprising: a processor configured to determine whether the STA changed an overlapping basic service set (OBSS) packet detection (PD) threshold for spatial reuse (SR); and a transceiver operably coupled to the processor, the transceiver configured to obtain, based on a determination that the STA changed the OBSS PD threshold for SR, feedback information for performance indicators associated with the STA, wherein the processor is further configured to; measure an impact that changing the OBSS PD threshold has on the performance indicators associated with the STA; and update the OBSS PD threshold for SR based on the feedback information and the measured impact. ### Claim 9 (depends on 8) The STA of claim 8, wherein the feedback information is associated with at least one of a throughput of the STA, a number of physical layer protocol data units (PPDUs), a number of SR PPDUs, and a modulation coding scheme (MCS). ### Claim 10 (depends on 8) The STA of claim 8, wherein the feedback information comprises control parameters or rewards used to adapt the OBSS PD threshold for SR. ### Claim 11 (depends on 10) The STA of claim 10, wherein the processor is further configured to use a multi-armed bandit procedure to maximize a reward value used to adapt the OBSS PD threshold for SR. ### Claim 12 (depends on 10) The STA of claim 10, wherein the processor is further configured to use an upper confidence bound procedure to maximize a reward value used for to update the OBSS PD threshold for SR. ### Claim 13 (depends on 10) The STA of claim 10, wherein the processor is further configured to use a Thompson Sampling, Epsilon Greedy, or Gaussian Process Upper Confidence Bound procedure to maximize a reward value used to adapt the OBSS PD threshold for SR. ### Claim 14 (depends on 8) The STA of claim 8, wherein: the transceiver is further configured to obtain, based on transmissions from nodes in at least one of a basic service set (BSS) or an overlapping BSS (OBSS), network context information for a network environment around an access point (AP) associated with the STA; and the processor is further configured to update the OBSS PD threshold for SR based on the network context information, the feedback information, and the measured impact. ### Claim 15 An access point (AP) comprising: a processor configured to determine whether a station (STA) associated with the AP changed an overlapping basic service set (OBSS) packet detection (PD) threshold for spatial reuse (SR); and a transceiver operably coupled to the processor, the transceiver configured to obtain, based on a determination that the STA changed the OBSS PD threshold for SR, feedback information for performance indicators associated with the STA, wherein the processor is further configured to: measure an impact that changing the OBSS PD threshold has on the performance indicators associated with the STA; and update the OBSS PD threshold for SR based on the feedback information and the measured impact. ### Claim 16 (depends on 15) The AP of claim 15, wherein the feedback information is associated with at least one of a throughput of the STA, a number of physical layer protocol data units (PPDUs), a number of SR PPDUs, and a modulation coding scheme (MCS). ### Claim 17 (depends on 15) The AP of claim 15, wherein the feedback information comprises control parameters or rewards used to adapt the OBSS PD threshold for SR. ### Claim 18 (depends on 17) The AP of claim 17, wherein the processor is further configured to use a multi-armed bandit procedure or an upper confidence bound procedure to maximize a reward value used to adapt the OBSS PD threshold for SR. ### Claim 19 (depends on 17) The AP of claim 17, wherein the processor is further configured to use a Thompson Sampling, Epsilon Greedy, or Gaussian Process Upper Confidence Bound procedure to maximize a reward value used to adapt the OBSS PD threshold for SR. ### Claim 20 (depends on 15) The AP of claim 15, wherein: the transceiver is further configured to obtain, based on transmissions from nodes in at least one of a basic service set (BSS) or an overlapping BSS (OBSS), network context information for a network environment around the AP; and the processor is further configured to update the OBSS PD threshold for SR based on the network context information, the feedback information, and the measured impact.