Patents by Inventor Khashayar Mirfakhraei
Khashayar Mirfakhraei 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).
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Patent number: 11818706Abstract: Improved mesh performance using Overlapping Basic Service Set (OBSS) coloring and transmission scheduling may be provided. A controller may determine that a plurality of Access Points (APs) in a mesh network each have a Received Signal Strength Indicator (RSSI) that is in a predetermined range. Next, the controller may assign, in response to determining that the plurality of APs each have the RSSI that is in the predetermined range, OBSS colors to links between the plurality of APs to limit packet collision in the mesh network between the plurality of APs. The controller may then create a transmission schedule for transmissions between the plurality of APs in the mesh network based on the assigned OBSS colors.Type: GrantFiled: April 27, 2021Date of Patent: November 14, 2023Assignee: Cisco Technology, Inc.Inventors: Gautam D. Bhanage, Vishal Satyendra Desai, Ramadhasan Thangachamy, Ardalan Alizadeh, Khashayar Mirfakhraei, Robert E. Barton, Jerome Henry
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Patent number: 11818567Abstract: In one embodiment, an apparatus comprises a compressive sensing schedule generator configured to generate a plurality of compressive sensing schedules, wherein each of the plurality of compressive sensing schedules is for each of a plurality of frequency bands of a network, wherein the network comprises a plurality of access points and a plurality of clients, and a sensing matrix combiner configured to combine the plurality of compressive sensing schedules into a resulting schedule that comprises a spatial distribution and a scheduled time slot for each of the plurality of access points.Type: GrantFiled: January 18, 2023Date of Patent: November 14, 2023Assignee: Cisco Technology, Inc.Inventors: Khashayar Mirfakhraei, Xu Zhang, Ardalan Alizadeh, Amir Hosein Kamalizad
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Patent number: 11812373Abstract: Optimal determination of a Wireless Local Area Network (WLAN) sounding method and system may be provided. An Access Point (AP) selects a subchannel for the partial sounding. The AP then sounds the selected subchannel. A client station responds with Channel State Information (CSI). The AP can receive the CSI, from the client station, in response to the sounding. Based on the CSI from the selected subchannel, the AP extrapolates the CSI to determine predicted CSI for a wider bandwidth channel.Type: GrantFiled: November 22, 2022Date of Patent: November 7, 2023Assignee: Cisco Technology, Inc.Inventors: Matthew Aaron Silverman, Ardalan Alizadeh, Khashayar Mirfakhraei, Gautam D. Bhanage
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Publication number: 20230328624Abstract: Optimal determination of wireless network pathway configurations may be provided. A computing device may detect, at a first network Access Point (AP), inference on a channel with a second AP. Then, the computing device can check availability of a redundant radio at the second AP. Based on the availability, the computing device can establish a new radio link with the redundant radio at the second AP and reroute data traffic over the new radio link to the second AP. After establishing the new radio link, the computing device can then sever the channel with the second AP.Type: ApplicationFiled: June 12, 2023Publication date: October 12, 2023Applicant: Cisco Technology, Inc.Inventors: Gautam D. Bhanage, Vishal Satyendra Desai, Ardalan Alizadeh, Khashayar Mirfakhraei
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Publication number: 20230254721Abstract: In one embodiment, an apparatus comprises a compressive sensing schedule generator configured to generate a plurality of compressive sensing schedules, wherein each of the plurality of compressive sensing schedules is for each of a plurality of frequency bands of a network, wherein the network comprises a plurality of access points and a plurality of clients, and a sensing matrix combiner configured to combine the plurality of compressive sensing schedules into a resulting schedule that comprises a spatial distribution and a scheduled time slot for each of the plurality of access points.Type: ApplicationFiled: January 18, 2023Publication date: August 10, 2023Inventors: Khashayar Mirfakhraei, Xu Zhang, Ardalan Alizadeh, Amir Hosein Kamalizad
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Patent number: 11700569Abstract: The present technology enables inter-network routing by dynamically optimizing data paths for traffic destined for wired clients attached to a wireless access point in a wireless mesh network with a plurality of wireless access points. The present technology can also influence steering of wireless device connections within the wireless mesh network when high amounts of data traffic are exchanged between nearby mesh wireless access points.Type: GrantFiled: October 15, 2021Date of Patent: July 11, 2023Assignee: Cisco Technology, Inc.Inventors: Vishal Satyendra Desai, Gautam Bhanage, Khashayar Mirfakhraei, Ardalan Alizadeh
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Patent number: 11678248Abstract: Optimal determination of wireless network pathway configurations may be provided. A computing device may detect, at a first network Access Point (AP), interference on a channel with a second AP. Then, the computing device can check availability of a redundant radio at the second AP. Based on the availability, the computing device can establish a new radio link with the redundant radio at the second AP and reroute data traffic over the new radio link to the second AP. After establishing the new radio link, the computing device can then sever the channel with the second AP.Type: GrantFiled: January 8, 2021Date of Patent: June 13, 2023Assignee: Cisco Technology, Inc.Inventors: Gautam D. Bhanage, Vishal Satyendra Desai, Ardalan Alizadeh, Khashayar Mirfakhraei
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Patent number: 11622355Abstract: A method includes instructing, by a WiFi access node, a first device to communicate using an uplink frequency band with a first uplink power. The method also includes instructing, by the WiFi access node, a second device to communicate using the uplink frequency band with a second uplink power different from the first uplink power.Type: GrantFiled: March 29, 2021Date of Patent: April 4, 2023Assignee: Cisco Technology, Inc.Inventors: Ardalan Alizadeh, Gautam D. Bhanage, Khashayar Mirfakhraei, Matthew A. Silverman, Sivadeep R. Kalavakuru
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Publication number: 20230084649Abstract: Optimal determination of a Wireless Local Area Network (WLAN) sounding method and system may be provided. An Access Point (AP) selects a subchannel for the partial sounding. The AP then sounds the selected subchannel. A client station responds with Channel State Information (CSI). The AP can receive the CSI, from the client station, in response to the sounding. Based on the CSI from the selected subchannel, the AP extrapolates the CSI to determine predicted CSI for a wider bandwidth channel.Type: ApplicationFiled: November 22, 2022Publication date: March 16, 2023Applicant: Cisco Technology, Inc.Inventors: Matthew Aaron Silverman, Ardalan Alizadeh, Khashayar Mirfakhraei, Gautam D. Bhanage
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Patent number: 11589253Abstract: In one embodiment, an apparatus comprises a compressive sensing schedule generator configured to generate a plurality of compressive sensing schedules, wherein each of the plurality of compressive sensing schedules is for each of a plurality of frequency bands of a network, wherein the network comprises a plurality of access points and a plurality of clients, and a sensing matrix combiner configured to combine the plurality of compressive sensing schedules into a resulting schedule that comprises a spatial distribution and a scheduled time slot for each of the plurality of access points.Type: GrantFiled: September 24, 2021Date of Patent: February 21, 2023Assignee: Cisco Technology, Inc.Inventors: Khashayar Mirfakhraei, Xu Zhang, Ardalan Alizadeh, Amir Hosein Kamalizad
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Patent number: 11540135Abstract: Aspects described herein include a method for use with an access point (AP). The method comprises inspecting control frames received from a rogue AP, characterizing an intrusion by the rogue AP using one or more spatial reuse parameters included in the control frames, and selecting a defensive posture for the AP based on the characterization.Type: GrantFiled: May 7, 2020Date of Patent: December 27, 2022Assignee: Cisco Technology, Inc.Inventors: Gautam D. Bhanage, Benjamin J. Cizdziel, Vishal S. Desai, Ardalan Alizadeh, Khashayar Mirfakhraei
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Patent number: 11540212Abstract: Optimal determination of a Wireless Local Area Network (WLAN) sounding method and system may be provided. An Access Point (AP) selects a subchannel for the partial sounding. The AP then sounds the selected subchannel. A client station responds with Channel State Information (CSI). The AP can receive the CSI, from the client station, in response to the sounding. Based on the CSI from the selected subchannel, the AP extrapolates the CSI to determine predicted CSI for a wider bandwidth channel.Type: GrantFiled: January 8, 2021Date of Patent: December 27, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Matthew Aaron Silverman, Ardalan Alizadeh, Khashayar Mirfakhraei, Gautam D. Bhanage
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Publication number: 20220346115Abstract: Improved mesh performance using Overlapping Basic Service Set (OBSS) coloring and transmission scheduling may be provided. A controller may determine that a plurality of Access Points (APs) in a mesh network each have a Received Signal Strength Indicator (RSSI) that is in a predetermined range. Next, the controller may assign, in response to determining that the plurality of APs each have the RSSI that is in the predetermined range, OBSS colors to links between the plurality of APs to limit packet collision in the mesh network between the plurality of APs. The controller may then create a transmission schedule for transmissions between the plurality of APs in the mesh network based on the assigned OBSS colors.Type: ApplicationFiled: April 27, 2021Publication date: October 27, 2022Applicant: Cisco Technology, Inc.Inventors: Gautam D. Bhanage, Vishal Satyendra Desai, Ramadhasan Thangachamy, Ardalan Alizadeh, Khashayar Mirfakhraei, Robert E. Barton, Jerome Henry
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Publication number: 20220312421Abstract: A method includes instructing, by a WiFi access node, a first device to communicate using an uplink frequency band with a first uplink power. The method also includes instructing, by the WiFi access node, a second device to communicate using the uplink frequency band with a second uplink power different from the first uplink power.Type: ApplicationFiled: March 29, 2021Publication date: September 29, 2022Inventors: Ardalan ALIZADEH, Gautam D. BHANAGE, Khashayar MIRFAKHRAEI, Matthew A. SILVERMAN, Sivadeep R. KALAVAKURU
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Patent number: 11424886Abstract: Embodiments for preliminary antenna configuration for a radio in an access point are described. A preliminary antenna configuration with a first number of antennas transmitting at a first power level based on a maximum transmission power for the radio is used to determine a second antenna configuration based on network level factors, where the second antenna configuration includes a second number of antennas. The second antenna configuration is used to determine a third antenna configuration from the second antenna configuration, where the third antenna configuration includes a third number of antennas transmitting at a third power level based on a client transmission factors for a plurality of client devices connected to the access point. The third antenna configuration is used to transmit network traffic from the access point to the plurality of client devices using the third antenna configuration.Type: GrantFiled: April 30, 2020Date of Patent: August 23, 2022Assignee: Cisco Technology, Inc.Inventors: Gautam D. Bhanage, John M. Blosco, Sivadeep R. Kalavakuru, Xiangxiang Fang, Khashayar Mirfakhraei
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Patent number: 11410046Abstract: Learning-based service migration in mobile edge computing may be provided. First, a service migration policy may be created for a network that includes a plurality of edge clouds configured to provide a service to users. Next, a movement of a user receiving the service from a source edge cloud may be detected. The source edge cloud may be associated with a first area and the detected movement may be from the first area to a second area. Then, the service migration policy may be applied to determine whether to migrate the service for the user from the source edge cloud. In response to determining to migrate the service, a target edge cloud may be identified and the service for the user may be migrated from the source edge cloud to the target edge cloud. The service migration policy may then be updated based on a success of the migration.Type: GrantFiled: September 14, 2021Date of Patent: August 9, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Dantong Liu, Qing Zhao, Khashayar Mirfakhraei, Gautam Dilip Bhanage, Xu Zhang, Ardalan Alizadeh
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Publication number: 20220225217Abstract: Optimal determination of a Wireless Local Area Network (WLAN) sounding method and system may be provided. An Access Point (AP) selects a subchannel for the partial sounding. The AP then sounds the selected subchannel. A client station responds with Channel State Information (CSI). The AP can receive the CSI, from the client station, in response to the sounding. Based on the CSI from the selected subchannel, the AP extrapolates the CSI to determine predicted CSI for a wider bandwidth channel.Type: ApplicationFiled: January 8, 2021Publication date: July 14, 2022Applicant: Cisco Technology, Inc.Inventors: Matthew Aaron Silverman, Ardalan Alizadeh, Khashayar Mirfakhraei, Gautam D. Bhanage
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Publication number: 20220225205Abstract: Optimal determination of wireless network pathway configurations may be provided. A computing device may detect, at a first network Access Point (AP), inference on a channel with a second AP. Then, the computing device can check availability of a redundant radio at the second AP. Based on the availability, the computing device can establish a new radio link with the redundant radio at the second AP and reroute data traffic over the new radio link to the second AP. After establishing the new radio link, the computing device can then sever the channel with the second AP.Type: ApplicationFiled: January 8, 2021Publication date: July 14, 2022Applicant: Cisco Technology, Inc.Inventors: Gautam D. Bhanage, Vishal Satyendra Desai, Ardalan Alizadeh, Khashayar Mirfakhraei
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Patent number: 11275366Abstract: In one embodiment, a management entity monitors for a change in a convergence rate of spatio-temporal compressive sensing measurements from a plurality of sensors in a sensor network operating according to a measurement matrix up to a halting criterion, and if the change is below a given threshold, determines whether the change is due to impulse noise or due to continued sensed measurements. If continued sensed measurements, the management entity initiates a single-dimensional compressive sensing in a spatial domain at regular time intervals, and identifies and tracks gradient clusters. In response to a change in joint spatio-temporal sparsity of tracked nodes of the gradient clusters, the management entity can then determine an updated measurement matrix based on the joint spatio-temporal sparsity of tracked nodes while satisfying one or more operating parameters, and directs at least certain sensors of the plurality of sensors to operate according to the updated measurement matrix.Type: GrantFiled: May 7, 2019Date of Patent: March 15, 2022Assignee: Cisco Technology, Inc.Inventors: Khashayar Mirfakhraei, Amir Hosein Kamalizad, Ardalan Alizadeh, Xu Zhang
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Publication number: 20220038993Abstract: The present technology enables inter-network routing by dynamically optimizing data paths for traffic destined for wired clients attached to a wireless access point in a wireless mesh network with a plurality of wireless access points. The present technology can also influence steering of wireless device connections within the wireless mesh network when high amounts of data traffic are exchanged between nearby mesh wireless access points.Type: ApplicationFiled: October 15, 2021Publication date: February 3, 2022Inventors: Vishal Satyendra Desai, Gautam Bhanage, Khashayar Mirfakhraei, Ardalan Alizadeh