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61.发明授权公开(公告)号：US11516808B2
公开(公告)日：2022-11-29
申请号：US17154131
申请日：2021-01-21
Applicant: Cisco Technology, Inc.
Inventor： Matthew Aaron Silverman , Ardalan Alizadeh , Pooya Monajemi , Jerome Henry
Abstract: In one embodiment, a method comprises first causing, by a controller device, wireless access points (APs) to allocate first non-interfering wireless channels for a prescribed reliable data service for wireless client devices in a WLAN; second causing the wireless APs to allocate a second shared channel having a bandwidth that is at least twice the corresponding bandwidth of any of the first non-interfering wireless channels; allocating for each wireless client device a corresponding location service interval on the second shared channel for transmission of at least a corresponding identifiable wireless data unit for locating the corresponding wireless client device between two or more of the wireless APs; and determining a location of at least one of the wireless client devices based on reception of at least the corresponding wireless data unit between the one wireless client device and the two or more wireless APs during the corresponding location service interval.
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公开(公告)号：US11489699B2
公开(公告)日：2022-11-01
申请号：US17155709
申请日：2021-01-22
Applicant: Cisco Technology, Inc.
Inventor： Matthew Aaron Silverman , Ardalan Alizadeh , Jerome Henry , John Matthew Swartz , Pooya Monajemi
IPC: H04L25/02 , H04W64/00 , H04B17/318 , H04W80/02 , H04W88/12
Abstract: According to one or more embodiments of the disclosure, a device receives data regarding wireless communications between a wireless access point and a client. The device evaluates, based on the data, motion of the client relative to the wireless access point. The device makes, based on the motion of the client relative to the wireless access point, a determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point. The device adjusts the wireless communications, based on the determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point.
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公开(公告)号：US11470571B2
公开(公告)日：2022-10-11
申请号：US17098735
申请日：2020-11-16
Applicant: Cisco Technology, Inc.
Inventor： Jerome Henry , Robert Edgar Barton , Matthew Aaron Silverman
Abstract: Presented herein are techniques for assigning Ultra-Wideband (UWB) anchors for client ranging. A location server can estimate a coarse location of a mobile device using a localization technique other than a UWB localization technique. The localization technique can involve multiple wireless access points or other radio devices. The location server can define an area around the coarse location to identify a set of candidate anchors for UWB ranging. The set of candidate anchors can be disposed within the area and include at least a subset of the radio devices. The location server can modify the set of candidate anchors to create a modified set of candidate anchors that includes only UWB-enabled devices. The location server can select a primary anchor from the modified set of candidate anchors and send a command to cause a UWB ranging procedure to be initiated between the primary anchor and the mobile device.
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公开(公告)号：US20220239531A1
公开(公告)日：2022-07-28
申请号：US17155709
申请日：2021-01-22
Applicant: Cisco Technology, Inc.
Inventor： Matthew Aaron Silverman , Ardalan Alizadeh , Jerome Henry , John Matthew Swartz , Pooya Monajemi
IPC: H04L25/02 , H04W64/00 , H04W88/12 , H04W80/02 , H04B17/318
Abstract: According to one or more embodiments of the disclosure, a device receives data regarding wireless communications between a wireless access point and a client. The device evaluates, based on the data, motion of the client relative to the wireless access point. The device makes, based on the motion of the client relative to the wireless access point, a determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point. The device adjusts the wireless communications, based on the determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point.
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公开(公告)号：US20220225317A1
公开(公告)日：2022-07-14
申请号：US17145249
申请日：2021-01-08
Applicant: Cisco Technology, Inc.
Inventor： Matthew Aaron Silverman , Ardalan Alizadeh , Michael Barry DeLong , Guru Prasanna Gopalakrishnan
Abstract: A method may be provided. One or more packets from a client may be received, in a block based modulation environment, at one or more switchable antennas of an access point. The access point may have a plurality of switchable antennas. Each switchable antenna may have an antenna state. The plurality of switchable antennas may be switched among such that at least five of the antenna states are sampled. Angle of arrival of the client may be calculated based on the at least five of the antenna states.
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Patent Agency Ranking
66.发明申请公开(公告)号：US20220225115A1
公开(公告)日：2022-07-14
申请号：US17145242
申请日：2021-01-08
Applicant: Cisco Technology, Inc.
Inventor： Sivadeep Reddy Kalavakuru , Ardalan Alizadeh , John Martin Blosco , Matthew Aaron Silverman , Gautam D. Bhanage , John Matthew Swartz
IPC: H04W16/28 , H04B17/391 , H04W24/02 , H04W64/00
Abstract: 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.
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公开(公告)号：US11387977B2
公开(公告)日：2022-07-12
申请号：US16801944
申请日：2020-02-26
Applicant: Cisco Technology, Inc.
Inventor： Pooya Monajemi , Brian Hart , Matthew Aaron Silverman , Gautam D. Bhanage
Abstract: 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.
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公开(公告)号：US11368236B2
公开(公告)日：2022-06-21
申请号：US16562598
申请日：2019-09-06
Applicant: Cisco Technology Inc.
Inventor： Huaiyi Wang , Matthew Aaron Silverman , Zhigang Gao , Evgeny Yankevich
Abstract: A wireless node in a wireless communication network. The wireless node includes one or more interfaces configured to receive wireless transmissions, a memory comprising instructions, and a hardware processor. The wireless node samples a received wireless transmission into a plurality of time-based subdivisions for each subdivision of the wireless transmission the wireless node determines a cross-correlation between the subdivision and a local syncword. The local syncword is constructed to correlate to any primary synchronization signal, PSS, of a plurality of PSSs defined for synchronization in the wireless network. The wireless node, based on the cross-correlation, determines whether one PSS of the plurality of PSSs is present in the subdivision of the wireless transmission.
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公开(公告)号：US11363558B2
公开(公告)日：2022-06-14
申请号：US16655030
申请日：2019-10-16
Applicant: Cisco Technology, Inc.
Inventor： Matthew Aaron Silverman , Xu Zhang , Santosh Ghanshyam Pandey , Jerome Henry , Paul J. Stager
Abstract: Access Point (AP) placement using Fine Time Measurement (FTM) may be provided. First, a plurality of Time-of-Flight (ToF) values between a first service end point and a second service end point may be determined. Each one of the plurality of ToF values may be derived from packets transmitted via different beamforming vector patterns at the first service end point and the second service end point. Then a minimum ToF value of the plurality of ToF values may be determined. Next, a distance between the first service end point and the second service end point may be determined based on the minimum ToF value.
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公开(公告)号：US20220070816A1
公开(公告)日：2022-03-03
申请号：US17098735
申请日：2020-11-16
Applicant: Cisco Technology, Inc.
Inventor： Jerome Henry , Robert Edgar Barton , Matthew Aaron Silverman
Abstract: Presented herein are techniques for assigning Ultra-Wideband (UWB) anchors for client ranging. A location server can estimate a coarse location of a mobile device using a localization technique other than a UWB localization technique. The localization technique can involve multiple wireless access points or other radio devices. The location server can define an area around the coarse location to identify a set of candidate anchors for UWB ranging. The set of candidate anchors can be disposed within the area and include at least a subset of the radio devices. The location server can modify the set of candidate anchors to create a modified set of candidate anchors that includes only UWB-enabled devices. The location server can select a primary anchor from the modified set of candidate anchors and send a command to cause a UWB ranging procedure to be initiated between the primary anchor and the mobile device.
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