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公开(公告)号：US11150325B2
公开(公告)日：2021-10-19
申请号：US16380668
申请日：2019-04-10
Applicant: Cisco Technology, Inc.
Inventor： Matthew Aaron Silverman , Santosh Ghanshyam Pandey , Paul J. Stager , Xu Zhang , Abhishek Mukherji
Abstract: Determining a device's location in a space in real time is computing intensive. To offload some of the workload in conducting this hyperlocation, the access points in the network conduct some of process in determining the location of a device. The cloud determines a restricted AoA search area based on previous client locations. After this determination, a three-dimensional (3D) AoA search is conducted by each AP in the restricted area (restricted by a range of azimuth directions) for a device. Finally, each AP reports a location(s) for the device, which comprises weights for selected angular sectors. The cloud can then construct a probability heat map for location computation from the weights provided from each AP for the device.
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公开(公告)号：US10887781B2
公开(公告)日：2021-01-05
申请号：US15880617
申请日：2018-01-26
Applicant: Cisco Technology, Inc.
Inventor： Santosh Ghanshyam Pandey , Jean-Philippe Vasseur , Vinay Kumar Kolar
Abstract: In one embodiment, a network assurance service that monitors a wireless network identifies a set of wireless network anomalies detected in the wireless network that are associated with a set of one or more network measurements. The network assurance service classifies the set of wireless anomalies as radio-related or backend-related. The network assurance service, when the set of wireless anomalies are classified as radio-related, determines that the wireless anomalies are recurring for a particular wireless access point in the network. The network assurance service initiates a change to the wireless network in part to move clients in the wireless network from the particular wireless access point to another wireless access point in the network.
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13.发明申请公开(公告)号：US20200099709A1
公开(公告)日：2020-03-26
申请号：US16141007
申请日：2018-09-25
Applicant: Cisco Technology, Inc.
Inventor： Jean-Philippe Vasseur , Grégory Mermoud , Santosh Ghanshyam Pandey
IPC: H04L29/06 , H04L12/24 , H04L12/707 , H04L12/747 , H04W88/12 , G06N99/00
Abstract: In one embodiment, a network assurance service that monitors a network detects, using a machine learning-based anomaly detector, network anomalies associated with source nodes in the monitored network. The network assurance service identifies, for each of the detected anomalies, a set of network paths between the source nodes associated with the anomaly and one or more potential destinations of traffic for that source node. The network assurance service correlates networking devices along the network paths in the identified sets of network paths with the detected network anomalies. The network assurance service adjusts the machine learning-based anomaly detector to use a performance measurement for a particular one of the networking devices as an input feature, based on the correlation between the particular networking device and the detected network anomalies.
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公开(公告)号：US20190306023A1
公开(公告)日：2019-10-03
申请号：US15942665
申请日：2018-04-02
Applicant: Cisco Technology, Inc.
Inventor： Jean-Philippe Vasseur , Vinay Kumar Kolar , Santosh Ghanshyam Pandey
Abstract: In one embodiment, a network assurance service that monitors one or more networks receives data indicative of networking device configuration changes in the one or more networks. The service also receives one or more performance indicators for the one or more networks. The service trains a machine learning model based on the received data indicative of the networking device configuration changes and on the received one or more performance indicators for the one or more networks. The service predicts, using the machine learning model, a change in the one or more performance indicators that would result from a particular networking device configuration change. The service causes the particular networking device configuration change to be made in the network based on the predicted one or more performance indicators.
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公开(公告)号：US20190215842A1
公开(公告)日：2019-07-11
申请号：US15865877
申请日：2018-01-09
Applicant: Cisco Technology, Inc.
Inventor： Matt Silverman , Zhigang Gao , Oscar Bejarano Chavez , John Matthew Swartz , Santosh Ghanshyam Pandey
Abstract: In one embodiment, a control device associated with a wireless network of a given location determines a reference quality of location readings between access points and client devices based on using substantially all of an available wireless communication bandwidth. The control device may then determine channel state information (CSI) between the client devices and access points for each orthogonal frequency-division multiple access (OFDMA) resource unit (RU), and selects a subset of RUs for allocation to each respective client device, based on the subset of RUs allocated to each respective client device i) surpassing a determined threshold of certain parameters of the CSI, while also ii) providing a minimum quality of a location reading based on using only the subset of RUs as compared to the reference quality of location readings. The control device may then allocate the selected subset of RUs to each respective client device for location-preserving OFDMA-signaling-based communication.
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Patent Agency Ranking
公开(公告)号：US10197661B1
公开(公告)日：2019-02-05
申请号：US15885912
申请日：2018-02-01
Applicant: Cisco Technology, Inc.
Inventor： Jagdish Girimaji , Santosh Ghanshyam Pandey
Abstract: In one embodiment, a device in a network receives a radio frequency (RF) beacon. The device determines a received signal strength indication (RSSI) of the received RF beacon. The device compares the determined RSSI to an RSSI threshold. The device sends a burst of ultrasound or infrared beacons when the determined RSSI of the RF beacon exceeds the RSSI threshold. The burst of ultrasound or infrared beacons is then used by a location service in the network to determine a physical location of the device.
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公开(公告)号：US09648464B1
公开(公告)日：2017-05-09
申请号：US15151081
申请日：2016-05-10
Applicant: Cisco Technology, Inc.
Abstract: An efficient process is provided that exploits features in historical and current client location data to forecast client counts of different zones up to several hours ahead. These features may be obtained from correlations of client counts of multiple zones in a recent and long period of time. These features may also be combined using techniques that choose the best performing method for a particular dataset and a particular lookahead time. This process provides better forecast/prediction on the zone-based client count data, and is very useful in customer analytics which can now show the future predicted value. This can help the analytics customers to plan their operations based on the location analytics.
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公开(公告)号：US12150087B2
公开(公告)日：2024-11-19
申请号：US18652722
申请日：2024-05-01
Applicant: Cisco Technology, Inc.
Abstract: Techniques to determine location-related data for a plurality of access points located in an area in communication with a network by determining that a plurality of access points in a network are associated with a same geographical area including identifying, from among the plurality of access points, a first access point associated with the geographical area, determining first location-related data for the first access point, determining second location-related data for a second access point, the second access point being interior to the first access point within the network based at least in part on a determination that the second access point has at least a threshold number of the neighbor access points, and exchanging ranging data indicative of a first relative distance between the first access point and the second access point, the ranging data based at least in part on ranging message exchange measurements.
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公开(公告)号：US20240284395A1
公开(公告)日：2024-08-22
申请号：US18652722
申请日：2024-05-01
Applicant: Cisco Technology, Inc.
CPC classification number: H04W64/003 , H04W16/18
Abstract: Techniques to determine location-related data for a plurality of access points located in an area in communication with a network by determining that a plurality of access points in a network are associated with a same geographical area including identifying, from among the plurality of access points, a first access point associated with the geographical area, determining first location-related data for the first access point, determining second location-related data for a second access point, the second access point being interior to the first access point within the network based at least in part on a determination that the second access point has at least a threshold number of the neighbor access points, and exchanging ranging data indicative of a first relative distance between the first access point and the second access point, the ranging data based at least in part on ranging message exchange measurements.
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公开(公告)号：US11616682B2
公开(公告)日：2023-03-28
申请号：US17716913
申请日：2022-04-08
Applicant: Cisco Technology, Inc.
Inventor： Sajjit Thampy , Santosh Ghanshyam Pandey , Jean-Philippe Vasseur
IPC: H04L41/0631 , H04L43/067 , H04L43/04 , H04W24/04 , H04B17/309 , H04L43/0823 , H04W28/04
Abstract: In one embodiment, a network assurance service that monitors a network maps time series of values of key performance indicator (KPIs) measured from the network to lists of unique values from the time series. The service sets a target alarm rate for anomaly detection alarms raised by the network assurance service. The service uses an optimization function to identify a set of thresholds for the KPIs. The optimization function is based on: a comparison between the target alarm rate and a fraction of network issues flagged by the service as outliers, KPI thresholds selected based on the lists of unique values from the time series, and a number of thresholds that the KPIs must cross for the service to raise an alarm. The service raises an anomaly detection alarm for the monitored network based on the identified set of thresholds for the KPIs.
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