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公开(公告)号：US11153761B2
公开(公告)日：2021-10-19
申请号：US16736620
申请日：2020-01-07
Applicant: Cisco Technology, Inc.
Inventor： Santosh Babaji Kulkarni , Vishal Satyendra Desai , Pooya Monajemi , Young Il Choi
IPC: H04W16/14 , H04W72/04 , H04B17/318 , H04W48/10 , H04W72/08
Abstract: Spectrum management may be provided. A first Radio Frequency (RF) event metric may be received from a first service end point. The first RF event metric may comprise a time a first event occurred. A second RF event metric may be received from a second service end point. The second RF event metric may comprise a time a second event occurred. Then it may be determined that the time the first event occurred and the time the second event occurred are substantially congruent. Next, in response to determining that the time the first event occurred and the time the second event occurred are substantially congruent, the first service end point and the second service end point may be grouped in a first RF group thereby allowing frequency re-use across similar RF groups. Then different channels may be assigned to the first service end point and the second service end point.
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公开(公告)号：US11057831B2
公开(公告)日：2021-07-06
申请号：US16408546
申请日：2019-05-10
Applicant: Cisco Technology, inc.
Inventor： Khashayar Mirfakhraei , Amir Hosein Kamalizad , Xu Zhang , Ardalan Alizadeh , Vishal Satyendra Desai
Abstract: In one embodiment, a supervisory service for a wireless network computes a compressive sensing schedule for a plurality of sensors in the wireless network. The service sends target wake time (TWT) messages to a subset of the plurality of sensors according to the computed compressive sensing schedule. The service receives, in response to the TWT messages, sensor readings from the subset of the plurality of sensors. The service performs compressive sensing on the received sensor readings.
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113.发明申请公开(公告)号：US20210120397A1
公开(公告)日：2021-04-22
申请号：US17110036
申请日：2020-12-02
Applicant: Cisco Technology, Inc.
Inventor： Jerome Henry , Malcolm Muir Smith , Vishal Satyendra Desai , Robert Edgar Barton
Abstract: A method performed by a system which manages station transition from a Wi-Fi access point includes sending, based on the station roaming to an edge-of-domain access point, a request to neighboring access points to the edge-of-domain access point for neighbor reports. The method includes receiving a cellular signal value from the station, comparing a first signal grade associated with the edge-of-domain access point to a second signal grade associated with the cellular signal value to yield a comparison and generating a link usability rating associated with a link between the station and the edge-of-domain access point. Based at least in part on the comparison and the link usability rating, the method includes transmitting a message to the station suggesting that the station roam from the edge-of-domain access point to a cellular network. An edge of the domain can also be dynamic and vary based on station characteristics.
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公开(公告)号：US10972943B2
公开(公告)日：2021-04-06
申请号：US16296523
申请日：2019-03-08
Applicant: Cisco Technology, Inc.
Inventor： Santosh Babaji Kulkarni , Vishal Satyendra Desai , Pooya Monajemi , Young Il Choi
Abstract: In one embodiment, a supervisory device for a wireless network classifies each client of a set of access points in the wireless network as either an Internet of Things (IoT) device or a non-IoT device. The supervisory device selects, for each of the access points in the set, a channel width based on the classifications of its clients. The supervisory device assigns, for each of the access points in the set, one or more wireless channels for use by that access point, based on the selected channel width for that access point. The supervisory device instructs the access points in the set to use their assigned channels to communicate with their clients.
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公开(公告)号：US10805906B2
公开(公告)日：2020-10-13
申请号：US16054603
申请日：2018-08-03
Applicant: Cisco Technology, Inc.
Inventor： Vishal Satyendra Desai , John Blosco , Allen Huotari
IPC: H04W72/04 , H04W48/18 , H04W88/10 , H04W36/16 , H04W74/08 , H04W36/32 , H04W84/04 , H04W36/22 , H04W36/04 , H04W48/20 , H04W88/08
Abstract: Embodiments herein describe using a dual assess point (AP) to establish two access points that both are established by two individual radios (e.g., two 5 GHz radios). Generally, APs experience highly degraded performance when two co-located radios operate within the same band. In one embodiment, AP devices can deploy same band radios using a macro-micro cell approach. Thus, the AP may intelligently hand off client devices between the micro and macro cell in a way that optimizes the system for overall throughput and low packet latency while creating minimal oscillation of clients between cells. The embodiments in this disclosure disclose techniques that direct clients in a manner that optimizes these factors.
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Patent Agency Ranking
公开(公告)号：US20200245260A1
公开(公告)日：2020-07-30
申请号：US16255955
申请日：2019-01-24
Applicant: Cisco Technology, Inc.
Inventor： Vishal Satyendra Desai , Pooya Monajemi , Santosh Babaji Kulkarni , Young Il Choi
Abstract: Presented herein are techniques for using mobile client density to compensate for variations in path loss between neighboring access points. In one example, a device (e.g., wireless controller) determines one or more mobile client density variation trends in a wireless network location and determines one or more neighbor message power variation trends between at least first and second access points within the wireless network location. The device generates one or more correlation bias factors using the mobile client density variation trends and the neighbor message power variation trends. The device determines a path loss between at least the first and second access points based on the correlation bias factor and data associated with neighbor messages sent between the first and second access points.
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公开(公告)号：US10716075B1
公开(公告)日：2020-07-14
申请号：US16295370
申请日：2019-03-07
Applicant: Cisco Technology, Inc.
Inventor： Young Il Choi , Santosh Kulkarni , Vishal Satyendra Desai
Abstract: The present disclosure is directed to the use of active feedback from client devices to limit/regulate transmission power control of access points from the perspective of the client device. The instant transmission power control beneficially ensures that clients located at a cell edge still receive sufficient coverage from access points and have sufficient overlap with adjacent cells for seamless roaming for the wireless stations while minimizing co-channel interference. In some embodiments, the present disclosure beneficially leverages 802.11h TPC Constraint to dynamically report client's view of the RF environment and cell size estimation.
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公开(公告)号：US20200162889A1
公开(公告)日：2020-05-21
申请号：US16447454
申请日：2019-06-20
Applicant: Cisco Technology, Inc.
Inventor： Vishal Satyendra Desai , Jerome Henry , Robert Edgar Barton
IPC: H04W8/12 , H04W8/24 , H04W40/24 , H04B17/318 , H04W72/04
Abstract: The present disclosure is related to dynamic methods of managing roaming of client devices at boundaries of area serviced by access points. In one aspect, a method includes estimating by a controller, first signal information of a signal transmitted by an access point and received at a client device, the first signal information being from the perspective of the access point, the client device operating at a boundary of an area serviced by the access point; determining, by the controller, second signal information for the signal, the second signal information being from the perspective of the client device; and performing, by the controller, roaming management of the client device based on the first signal information and the second signal information.
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公开(公告)号：US10541778B1
公开(公告)日：2020-01-21
申请号：US16118667
申请日：2018-08-31
Applicant: Cisco Technology, Inc.
Inventor： Benjamin Jacob Cizdziel , Brian Donald Hart , Pooya Monajemi , Vishal Satyendra Desai
IPC: H04W72/04 , H04L1/00 , H04L12/803 , H04W16/14 , H04L12/851 , G01S7/02
Abstract: An access point in a wireless network communicates wirelessly with one or more client devices over a channel that includes a plurality of subchannels. Each subchannel corresponds to a distinct frequency chunk with a respective plurality of subcarriers. Radar is detected on a first subchannel. In response, a selection is made between (i) redefining the channel and (ii) puncturing the first subchannel while continuing to use all other subchannels. Puncturing the first subchannel includes muting subcarriers on the first subchannel. Redefining the channel includes removing multiple subchannels from the channel. The selection is based at least in part on one or more factors that provide indications as to whether puncturing would be efficient and/or effective. The access point continues to communicate wirelessly with the one or more client devices in accordance with the selection.
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公开(公告)号：US20200012748A1
公开(公告)日：2020-01-09
申请号：US16026132
申请日：2018-07-03
Applicant: Cisco Technology, Inc.
Inventor： Karthikeyan Ganesan , Anand Gurumurthy , Vishal Satyendra Desai , Jerome Henry , Pooya Monajemi
Abstract: In one embodiment, a service maintains a plurality of machine learning-based client behavioral models. Each behavioral model models wireless client behavior of a particular client type and configuration. The service selects one or more of the behavioral models to emulate the modeled one or more wireless client behaviors in a wireless network. The service controls, by using the selected one or more behavioral models, one or more emulation points in the wireless network to generate wireless client traffic in the wireless network that exhibits the modeled one or more wireless client behaviors. The service obtains performance metrics from the wireless network associated with the generated wireless client traffic.
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