Patents by Inventor Brian D. Hart

Brian D. Hart has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250151111
    Abstract: Irregular absence signaling may be provided. An Access Point (AP) may receive an irregular absence report from a station. The AP may parse the irregular absence report to determine upcoming absence periods of the station for non-Peer-to-Peer (P2P) traffic. The AP may schedule Transmit Opportunity's (TxOPs) of the non-P2P traffic to the station based on the determined upcoming absence periods.
    Type: Application
    Filed: July 26, 2024
    Publication date: May 8, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Brian D. Hart, Malcolm M. Smith, Binita Gupta
  • Publication number: 20250151146
    Abstract: Signaling preference order of links and maximum allowed links for multi-link operation may be provided. First, an Access Point (AP) Multilink Device (MLD) may receive an indication that a non-AP MLD supports preference ordering for requested links (that are indicated in the Per-STA profile sub-elements). Then the AP MLD may indicate that it supports preference ordering for requested links (that are indicated in the Per-STA profile sub-elements). Next, the AP MLD may receive from the non-AP MLD, a desired preference ordering for the requested link. The AP MLD may then consider the desired preference ordering for requested links.
    Type: Application
    Filed: November 4, 2024
    Publication date: May 8, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Binita Gupta, Brian D. Hart
  • Publication number: 20250150781
    Abstract: Control of service provider information collection and, particularly, control of Access Point (AP) location crowdsourcing and time zone information may be provided. A time zone to use in a venue can be determined. A time zone field can be set indicating the time zone. A venue mobility field can be set indicating the venue is mobile. One or more elements comprising the time zone field and the venue mobility field can be sent to a Station (STA), wherein the STA is operable to use the time zone according to the time zone field and based on the venue mobility field indicating the venue is mobile.
    Type: Application
    Filed: November 5, 2024
    Publication date: May 8, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Al Dumdei, Carlos E. Alcantara, Brian D. Hart, Sarath Gorthi Subrahmanya, Jerome Henry
  • Publication number: 20250150960
    Abstract: Sending Quality-of-Experience (QoE) information to clients for selecting an Access Point (AP) may be provided. Sending QoE information can include determining values for a plurality of QoE attributes. Based on the values for the plurality of QoE attributes, a QoE indicator is determined. The QoE indicator is sent to a client, wherein the client is operable to use the QoE indicator to select an Access Point (AP) to connect to.
    Type: Application
    Filed: November 5, 2024
    Publication date: May 8, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Al Dumdei, Malcolm M. Smith, Venkat Chirreddy, Brian D. Hart
  • Publication number: 20250142556
    Abstract: Coordinated Frequency Division Multiple Access (C-FDMA) for the simultaneous transmission of a basic Physical Layer Protocol Data Unit (PPDU) may be provided. C-FDMA may include determining sub-channels of a channel for one or more Access Points (APs). The sub-channels may then be assigned to the one or more APs. Transmit Opportunities (TxOps) may be scheduled for the one or more APs on the sub-channels. It may then be determined that a basic PPDU and an enhanced PPDU will be simultaneously transmitted on adjacent sub-channels. In response to determining the basic PPDU and the enhanced PPDU will be simultaneously transmitted on adjacent sub-channels, one or more Resource Units (RUs) of a sub-channel the enhanced PPDU will be transmitted on may be selected to disable transmission in.
    Type: Application
    Filed: February 21, 2024
    Publication date: May 1, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Malcolm M. Smith, Brian D. Hart
  • Publication number: 20250142344
    Abstract: Secure device location sharing may be provided. Over a secured link, an indication that a peer-to-peer device desires Automated Frequency Coordination (AFC) based location sharing may be received. Then, from the peer-to-peer device over the secured link, an identity provider (IdP) may be received for the peer-to-peer device. Next, validation of the peer-to-peer device may be requested from the IdP. From the IdP in response to requesting validation of the peer-to-peer device from the IdP, authentication for the peer-to-peer device and an indication that the peer-to-peer device needs AFC based location sharing may be received. An indication that the peer-to-peer device is approved for AFC based location sharing may then be sent to the peer-to-peer device over the secured link.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 1, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Malcolm M. Smith, Jerome Henry, Scott Ross Blue, Brian D. Hart
  • Publication number: 20250142615
    Abstract: Basic Service Set (BSS) resource reservation may be provided. BSS resource reservation may include determining a time window for a to accommodate a transmission of a target Station (STA) in a BSS, wherein the BSS further comprises one or more other STAs. An AP may then transmit a reservation scheduling frame, to claim access of a channel, inform the target STA of the time window, and reserve the channel for a duration defined by the time window.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 1, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Malcolm M. Smith, Brian D. Hart, Sanjay Katabathuni
  • Publication number: 20250142555
    Abstract: Coordinated Frequency Division Multiple Access (C-FDMA) may be provided. C-FDMA may include determining sub-channels of a channel for each of a plurality of Access Points (APs). The sub-channels may then be assigned to the plurality of APs. Transmit Opportunities (TxOps) may be scheduled for the plurality of APs on the sub-channels.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 1, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Malcolm M. Smith, Brian D. Hart
  • Publication number: 20250119819
    Abstract: Multi-AP Coordination (MAPC) configuration protocol may be provided. MAPC modes supported by a plurality of Access Points (APs) may be discovered. A MAPC group of a sub-set of APs of the plurality of APs may be formed. Each AP of the sub-set of APs of the MAPC group may support at least one common MAPC mode. Roles including a leader and followers of the MAPC group may be advertised. A first AP of the MAPC group may be assigned as the leader and remaining APs of the MAPC group may be assigned as the followers.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 10, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Juan Carlos Zuniga, Malcolm M. Smith, Brian D. Hart, Jerome Henry
  • Publication number: 20250112727
    Abstract: A Low Power Indoor (LPI) Access Point (AP) that punctures its channel while respecting incumbents may be provided. First, a computing device may determine a relaxation value. Then an energy detection Clear Channel Assessment (CCA) threshold may be changed by the relaxation value for a punctured subchannel. Next, the punctured subchannel may be reported as busy when energy is detected in the punctured subchannel above the changed energy detection CCA threshold.
    Type: Application
    Filed: September 30, 2024
    Publication date: April 3, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Brian D. Hart, William H. Davenport, Scott Ross Blue, Nedime Pelin Mohamed Hassan Salem
  • Patent number: 12267101
    Abstract: Access Point ranging and placement on a floorplan may be provided. A host AP may range each neighbor AP of the host AP. One or more neighbor APs that failed ranging with the host AP may be categorized in a failed neighbor AP list. The host AP may re-range each of the one or more neighbor APs in the failed neighbor AP list with a modified ranging parameter. At least one neighbor AP of the one or more neighbor APs may be categorized in the failed neighbor AP list that succeeded in re-ranging with the host AP in an extended range neighbor AP list.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: April 1, 2025
    Inventors: Matthew Aaron Silverman, Robert E. Barton, Brian D. Hart, Jerome Henry, Ardalan Alizadeh, Vishal S. Desai, John Matthew Swartz
  • Publication number: 20250105805
    Abstract: Interoperable Transmit Power Envelop (TPE) signaling with Automated Frequency Coordination (AFC) frequency response may be provided. First, AFC information may be received. Next a mask may be determined for a punctured channel indicated in the AFC information. Then a first amount may be determined that the mask needs to be altered to reach an AFC response for the punctured channel indicated in the AFC information. A Transmit Power Envelop (TPE) value may then be reported for the punctured channel comprising the first amount plus a second amount.
    Type: Application
    Filed: September 23, 2024
    Publication date: March 27, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Brian D. Hart, Sachin D. Wakudkar, Nedime Pelin Mohamed Hassan Salem
  • Publication number: 20250089121
    Abstract: A multi-link procedure to identify link disablement in Basic Service Set (BSS) transition management frames may be provided. First, a Basic Service Set (BSS) Transition Management (BTM) request may be created. The BTM request may indicate a link disablement that will happen in the future. Then the BTM request may be sent.
    Type: Application
    Filed: September 9, 2024
    Publication date: March 13, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Binita Gupta, Brian D. Hart
  • Publication number: 20250081164
    Abstract: The present disclosure describes an access point that coordinates infrastructure and non-infrastructure communications. The access point includes one or more memories and one or more processors communicatively coupled to the one or more memories. The one or more processors determine that access points of an extended service set are refraining from using a first channel and communicate, to a first device, a first beacon comprising a channel usage element indicating that the first channel is available for the first device to use to communicate directly with a second device.
    Type: Application
    Filed: September 5, 2024
    Publication date: March 6, 2025
    Inventors: Brian D. HART, Malcolm M. SMITH, Binita GUPTA
  • Publication number: 20250081256
    Abstract: The present disclosure describes an access point that shifts data streams subject to QoS requirements to links that are mapped to handle such traffic. The access point includes one or more memories and one or more processors communicatively coupled to the one or more memories. The one or more processors determine, based on a first traffic identifier for a first data stream, that the first data stream is subject to QoS requirements and in response to determining that the first data stream is subject to QoS requirements, determine a first link that is mapped to the first traffic identifier. The one or more processors carry the first data stream on the first link.
    Type: Application
    Filed: September 5, 2024
    Publication date: March 6, 2025
    Inventors: Binita GUPTA, Malcolm M. SMITH, Brian D. HART, Venkataprasad CHIRREDDY
  • Publication number: 20250080469
    Abstract: The present disclosure provides techniques for Stream Classification Service (SCS) policy validation for downlink and uplink traffic. A network device receives an SCS request from an associated STA, which specifies one or more sets of TCLAS information for a data flow transmitted between the network device and the STA, each set of TCLAS information being accompanied by associated QoS profile information for the data flow. The network device compares the sets of TCLAS information and associated QoS profile information with one or more cached application profiles, and determines that there is no match. In response to the determination, the network device performs packet analysis and confirms that the sets of TCLAS information and associated QoS profile information align with the type of service of the data flow under defined network polices. In response to the confirmation, the network device applies one or more treatments to the data flow.
    Type: Application
    Filed: August 28, 2024
    Publication date: March 6, 2025
    Inventors: Malcolm M. SMITH, Brian D. HART, Venkataprasad CHIRREDDY, Sanjay K. KATABATHUNI, Binita GUPTA
  • Publication number: 20250081273
    Abstract: The present disclosure provides techniques for reducing signaling overhead in multi-link reconfiguration. A first MLD generates a first profile for a first link, where the first profile comprises a plurality of parameter sets, each parameter set being allocated an element identifier and comprising a first value set relevant to an operation of the first link. The first MLD generates a second profile for a second link, where one or more parameter sets that have a same value set as in the first profile are omitted, and, for each parameter set that has a different value set from the first profile, the element identifier and a second value set are incorporated into the second profile. The first MLD generates a link reconfiguration frame including the first and second profiles, and sends the frame to a second MLD.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Inventors: Binita GUPTA, Brian D. HART
  • Publication number: 20250080470
    Abstract: The present disclosure provides techniques for QoS negotiation for uplink and downlink traffic. A network device receives a Stream Classification Service (SCS) request from an associated station (STA). The SCS request comprises one or more sets of traffic class (TCLAS) information and a preferred traffic identifier (TID) value for a data flow transmitted between the STA and the network device. The network device determines a type of service of the data flow by analyzing the one or more sets of TCLAS information. The network device confirms that the type of service does not align with the preferred TID value under one or more defined network policies. In response to the confirmation, the network device sends an SCS response to the STA comprising adjustments of at least one of the one or more sets of TCLAS information or the preferred TID value to a new TID value.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Inventors: Binita GUPTA, Malcolm M. SMITH, Brian D. HART, Venkataprasad CHIRREDDY
  • Patent number: 12231963
    Abstract: Time Sensitive Networking (TSN) Quality of Service (QoS) in overlapped administrative domains may be provided. A first Access Point (AP) may detect at least a second AP in a Co-Channel Interference (CCI) range. A micro-transaction auction between the first AP and at least the second AP may be established, and the first AP may provide compensation to second AP to acquire an agreement, from the second AP, to forgo transmitting during an upcoming service period. Next, the first AP may schedule transmissions for the service period and then transmit in the service period without interference from the second AP.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: February 18, 2025
    Assignee: Cisco Technology, Inc.
    Inventors: Brian D. Hart, Pooya Monajemi, Malcolm Muir Smith
  • Publication number: 20250030787
    Abstract: A method and system for negotiating a duration of an extension portion of a preamble are disclosed. In a PPDU, a preamble extension has several forms. A station and an access point (AP) negotiate to select one or more of the forms suited to a change in the operation of the station. When the change is increased data throughput, the station sends one or more throughput-related parameters in a proposal to the AP. When the change is the number of spatial streams, the station sends the number as a parameter in the proposal. When the change is a different coding set, then the coding set is sent as the parameter in the proposal. The AP responds to the proposal which fixes the values of the parameters and the duration of the extension portion of the preamble.
    Type: Application
    Filed: July 16, 2024
    Publication date: January 23, 2025
    Inventor: Brian D. HART