公开(公告)号：US20230328624A1

公开(公告)日：2023-10-12

申请号：US18332810

申请日：2023-06-12

申请人： Cisco Technology, Inc.

发明人： Gautam D. Bhanage ,  Vishal Satyendra Desai ,  Ardalan Alizadeh ,  Khashayar Mirfakhraei

IPC分类号： H04W40/16 ,  H04W76/30 ,  H04W80/02

CPC分类号： H04W40/16 ,  H04W76/30 ,  H04W80/02 ,  H04W84/12

摘要： 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.

公开(公告)号：US20220225115A1

公开(公告)日：2022-07-14

申请号：US17145242

申请日：2021-01-08

申请人： Cisco Technology, Inc.

发明人： Sivadeep Reddy Kalavakuru ,  Ardalan Alizadeh ,  John Martin Blosco ,  Matthew Aaron Silverman ,  Gautam D. Bhanage ,  John Matthew Swartz

IPC分类号： H04W16/28 ,  H04B17/391 ,  H04W24/02 ,  H04W64/00

摘要： 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.

公开(公告)号：US11387977B2

公开(公告)日：2022-07-12

申请号：US16801944

申请日：2020-02-26

申请人： Cisco Technology, Inc.

发明人： Pooya Monajemi ,  Brian Hart ,  Matthew Aaron Silverman ,  Gautam D. Bhanage

IPC分类号： H04L5/14 ,  H04W74/08 ,  H04W52/28

摘要： 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.

公开(公告)号：US11622355B2

公开(公告)日：2023-04-04

申请号：US17301176

申请日：2021-03-29

申请人： Cisco Technology, Inc.

发明人： Ardalan Alizadeh ,  Gautam D. Bhanage ,  Khashayar Mirfakhraei ,  Matthew A. Silverman ,  Sivadeep R. Kalavakuru

IPC分类号： H04W84/12 ,  H04W72/044 ,  H04W72/0453

摘要： 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.

公开(公告)号：US11540212B2

公开(公告)日：2022-12-27

申请号：US17145252

申请日：2021-01-08

申请人： Cisco Technology, Inc.

发明人： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Khashayar Mirfakhraei ,  Gautam D. Bhanage

IPC分类号： H04W4/00 ,  H04W48/16 ,  H04W48/20 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08

摘要： 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.

公开(公告)号：US11540135B2

公开(公告)日：2022-12-27

申请号：US16869370

申请日：2020-05-07

申请人： Cisco Technology, Inc.

发明人： Gautam D. Bhanage ,  Benjamin J. Cizdziel ,  Vishal S. Desai ,  Ardalan Alizadeh ,  Khashayar Mirfakhraei

IPC分类号： H04W12/122 ,  H04W12/63 ,  H04W12/08

摘要： 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.

公开(公告)号：US11368857B1

公开(公告)日：2022-06-21

申请号：US17145242

申请日：2021-01-08

申请人： Cisco Technology, Inc.

发明人： Sivadeep Reddy Kalavakuru ,  Ardalan Alizadeh ,  John Martin Blosco ,  Matthew Aaron Silverman ,  Gautam D. Bhanage ,  John Matthew Swartz

IPC分类号： H04W16/28 ,  H04B17/391 ,  H04W64/00 ,  H04W24/02 ,  H04W84/12

摘要： 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.

公开(公告)号：US11902912B2

公开(公告)日：2024-02-13

申请号：US18148651

申请日：2022-12-30

申请人： Cisco Technology, Inc.

发明人： Sivadeep Reddy Kalavakuru ,  John Martin Blosco ,  Fred Jay Anderson ,  Ardalan Alizadeh ,  Gautam D. Bhanage

IPC分类号： H04W52/08 ,  H04W52/34 ,  H04W56/00 ,  H04W52/26 ,  H04W52/24 ,  H04W84/12

CPC分类号： H04W52/346 ,  H04W52/242 ,  H04W52/262 ,  H04W56/001 ,  H04W84/12

摘要： 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.

公开(公告)号：US11812373B2

公开(公告)日：2023-11-07

申请号：US18057902

申请日：2022-11-22

申请人： Cisco Technology, Inc.

发明人： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Khashayar Mirfakhraei ,  Gautam D. Bhanage

IPC分类号： H04W4/00 ,  H04W48/16 ,  H04W48/20 ,  H04W72/20 ,  H04W84/12 ,  H04W88/08

CPC分类号： H04W48/16 ,  H04W48/20 ,  H04W72/20 ,  H04W84/12 ,  H04W88/08

摘要： 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.

公开(公告)号：US11799528B2

公开(公告)日：2023-10-24

申请号：US17305237

申请日：2021-07-01

申请人： Cisco Technology, Inc.

发明人： Sivadeep R. Kalavakuru ,  Ardalan Alizadeh ,  Gautam D. Bhanage ,  Matthew A. Silverman

IPC分类号： H04B7/06 ,  H04B7/155 ,  H04B17/336 ,  H04B17/318

CPC分类号： H04B7/0617 ,  H04B7/15564 ,  H04B17/318 ,  H04B17/336

摘要： A method includes measuring an interference caused by a first radio in a multi-link device to a second radio of the multi-link device and in response to determining that the interference exceeds a threshold, repeatedly narrowing a transmission beam width of the first radio until the interference falls below the threshold.