Patents by Inventor Gautam D. Bhanage
Gautam D. Bhanage 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: 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: 20220394582Abstract: A method includes transmitting a message over a first link using a first radio of a plurality of radios of a multi-link device and in response to determining that the message was not properly received, selecting a second radio of the plurality of radios of the multi-link device. A second link of the second radio provides a higher probability than the first link that the message will be properly received. The method also includes retransmitting the message over the second link using the second radio.Type: ApplicationFiled: June 4, 2021Publication date: December 8, 2022Inventors: Ardalan ALIZADEH, Gautam D. BHANAGE, Pooya MONAJEMI, Sivadeep R. KALAVAKURU, Matthew A. SILVERMAN
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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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Publication number: 20220311524Abstract: Techniques for identifying an orientation for an antenna in a wireless communication device. A plurality of estimates of antenna gain are determined for an antenna associated with a wireless access point (AP), the plurality of estimates of antenna gain relating to a plurality of wireless stations (STAs) associated with the AP. An orientation for the antenna is determined based on the plurality of estimates of antenna gain and a plurality of properties for the antenna.Type: ApplicationFiled: March 29, 2021Publication date: September 29, 2022Inventors: Sivadeep R. KALAVAKURU, Ardalan ALIZADEH, Matthew A. SILVERMAN, Gautam D. BHANAGE
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Publication number: 20220303790Abstract: Optimal determination of wireless antenna configurations may be provided. A computing device may direct an antenna array of an Access Point (AP) to generate a wide beamwidth, to locate a cluster of two or more stations. Upon locating the cluster, the AP can narrow the beamwidth, and, with the narrower beamwidth, receive a key performance indicator (KPI) from at least one of the two or more stations in the cluster. The computing device may then generate a statistical model, based on the KPI and an antenna vector of the antenna array. Based on the statistical model, the computing device can determine a second antenna vector to optimize the KPI for one or more of the client stations. The computing device can then modify the antenna state of the AP to generate the determined antenna vector.Type: ApplicationFiled: June 6, 2022Publication date: September 22, 2022Applicant: Cisco Technology, Inc.Inventors: Sivadeep Reddy Kalavakuru, Ardalan Alizadeh, John Martin Blosco, Matthew Aaron Silverman, Gautam D. Bhanage, John Matthew Swartz
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Publication number: 20220303104Abstract: A wireless access point device is full-duplex capable and serves wireless communication for at least first and second wireless client devices. The wireless access point device sends to the first wireless client device a trigger frame that causes the first wireless client device to send an uplink transmission to the wireless access point after a first time interval. The wireless access point device waits a second time interval after the first wireless client is expected to begin sending the uplink transmission. The wireless access point device receives the uplink transmission from the first wireless client device. After the second time interval, and while receiving the uplink transmission from the first wireless client device, the wireless access point device sends to the second wireless client device a downlink transmission that overlaps at least partially in frequency and time with the uplink transmission from the first wireless client device.Type: ApplicationFiled: June 9, 2022Publication date: September 22, 2022Inventors: Pooya Monajemi, Brian Hart, Matthew Aaron Silverman, Gautam D. Bhanage
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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: 11412502Abstract: Techniques for efficient network probing are provided. Coherence data is received from a plurality of access points (APs), where the coherence data indicates, for each respective AP of the plurality of APs, coherence bandwidth for a plurality of subcarriers. A mapping is generated indicating, for each of the plurality of APs, sets of subcarriers that can be interchangeably sounded. Two or more APs of the plurality of APs that can jointly sound a first subcarrier of the plurality of subcarriers are then identified based on the mapping, and the first subcarrier is allocated to the identified two or more APs for future sounding.Type: GrantFiled: March 5, 2020Date of Patent: August 9, 2022Assignee: Cisco Technology, Inc.Inventors: Pooya Monajemi, Matthew A. Silverman, Gautam D. Bhanage, Paul J. Stager, Fred J. Anderson
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Publication number: 20220248486Abstract: Optimization of radio communications of a wireless network of a local site may be provided. A probe frame or an association frame may be received from a Client Device (CD) operating in the local site that identifies at least one operating class and Multi-Link (ML) capability information of the CD. Channel information of at least one Access Point (AP) having ML capability in the local site may be embedded in a probe response frame or in an association response frame based on the at least one operating class and the ML capability information of the CD. The probe response frame or the association response frame that includes the channel information of the at least one AP having ML capability in the local site may be transmitted, as unicast, to the CD.Type: ApplicationFiled: February 4, 2021Publication date: August 4, 2022Applicant: Cisco Technology, Inc.Inventors: Vishal Satyendra DESAI, Gautam D. BHANAGE, Benjamin Jacob CIZDZIEL, Santosh Babaji KULKARNI
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Publication number: 20220248344Abstract: Optimal determination of transmit power level for MLDs in A Wireless Local Area Network (WLAN). An AP can establish synchronous downlink multi-link operations with another MLD. A first link and a second link between the AP and the MLD both operate in a same sub-band. The AP can then determine the same power level for both the first link and second link. After establishing the same power level, the AP can then determine a second power level for the first link and a third power level for the second link. The second power level is greater than the third power level. The AP can then provide the second power level for the first link and the third power level for the second link.Type: ApplicationFiled: February 1, 2021Publication date: August 4, 2022Applicant: Cisco Technology, Inc.Inventors: Sivadeep Reddy Kalavakuru, John Martin Blosco, Fred Jay Anderson, Ardalan Alizadeh, Gautam D. Bhanage
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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: 20220225115Abstract: Optimal determination of wireless antenna configurations may be provided. A computing device may direct an antenna array of an Access Point (AP) to generate a wide beamwidth, to locate a cluster of two or more stations. Upon locating the cluster, the AP can narrow the beamwidth, and, with the narrower beamwidth, receive a key performance indicator (KPI) from at least one of the two or more stations in the cluster. The computing device may then generate a statistical model, based on the KPI and an antenna vector of the antenna array. Based on the statistical model, the computing device can determine a second antenna vector to optimize the KPI for one or more of the client stations. The computing device can then modify the antenna state of the AP to generate the determined antenna vector.Type: ApplicationFiled: January 8, 2021Publication date: July 14, 2022Applicant: Cisco Technology, Inc.Inventors: Sivadeep Reddy Kalavakuru, Ardalan Alizadeh, John Martin Blosco, Matthew Aaron Silverman, Gautam D. Bhanage, John Matthew Swartz
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Publication number: 20220225325Abstract: Optimal determination of wireless network pathway configurations may be provided. A computing device may establish Multi-Access Point (AP) coordination between at least a first AP and a second AP. The first AP can determine an uplink operation is scheduled. When an uplink is scheduled, the first AP can switch its antenna to a narrow beamwidth. The first AP can then receive uplink transmissions from at least a client in the coverage area of the narrow beamwidth. After the uplink transmission, the first AP can then switch the antenna to a larger beamwidth for a next Multi-AP coordination operation.Type: ApplicationFiled: February 28, 2022Publication date: July 14, 2022Applicant: Cisco Technology, Inc.Inventors: Ardalan Alizadeh, Sivadeep Reddy Kalavakuru, Gautam D. Bhanage, John Matthew Swartz, Matthew Aaron Silverman
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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: 11387977Abstract: A wireless access point device is full-duplex capable and serves wireless communication for at least first and second wireless client devices. The wireless access point device sends to the first wireless client device a trigger frame that causes the first wireless client device to send an uplink transmission to the wireless access point after a first time interval. The wireless access point device waits a second time interval after the first wireless client is expected to begin sending the uplink transmission. The wireless access point device receives the uplink transmission from the first wireless client device. After the second time interval, and while receiving the uplink transmission from the first wireless client device, the wireless access point device sends to the second wireless client device a downlink transmission that overlaps at least partially in frequency and time with the uplink transmission from the first wireless client device.Type: GrantFiled: February 26, 2020Date of Patent: July 12, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Pooya Monajemi, Brian Hart, Matthew Aaron Silverman, Gautam D. Bhanage
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Patent number: 11368857Abstract: Optimal determination of wireless antenna configurations may be provided. A computing device may direct an antenna array of an Access Point (AP) to generate a wide beamwidth, to locate a cluster of two or more stations. Upon locating the cluster, the AP can narrow the beamwidth, and, with the narrower beamwidth, receive a key performance indicator (KPI) from at least one of the two or more stations in the cluster. The computing device may then generate a statistical model, based on the KPI and an antenna vector of the antenna array. Based on the statistical model, the computing device can determine a second antenna vector to optimize the KPI for one or more of the client stations. The computing device can then modify the antenna state of the AP to generate the determined antenna vector.Type: GrantFiled: January 8, 2021Date of Patent: June 21, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Sivadeep Reddy Kalavakuru, Ardalan Alizadeh, John Martin Blosco, Matthew Aaron Silverman, Gautam D. Bhanage, John Matthew Swartz
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Patent number: 11265857Abstract: Optimal determination of wireless network pathway configurations may be provided. A computing device may establish Multi-Access Point (AP) coordination between at least a first AP and a second AP. The first AP can determine an uplink operation is scheduled. When an uplink is scheduled, the first AP can switch its antenna to a narrow beamwidth. The first AP can then receive uplink transmissions from at least a client in the coverage area of the narrow beamwidth. After the uplink transmission, the first AP can then switch the antenna to a larger beamwidth for a next Multi-AP coordination operation.Type: GrantFiled: January 8, 2021Date of Patent: March 1, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Ardalan Alizadeh, Sivadeep Reddy Kalavakuru, Gautam D. Bhanage, John Matthew Swartz, Matthew Aaron Silverman
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Publication number: 20210352483Abstract: 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: ApplicationFiled: May 7, 2020Publication date: November 11, 2021Inventors: Gautam D. BHANAGE, Benjamin J. CIZDZIEL, Vishal S. DESAI, Ardalan ALIZADEH, Khashayar MIRFAKHRAEI