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公开(公告)号：US10701546B2
公开(公告)日：2020-06-30
申请号：US15726543
申请日：2017-10-06
Applicant: Cisco Technology, Inc.
Inventor： Vinay Kumar Kolar , Jean-Philippe Vasseur , Santosh Pandey
Abstract: In one embodiment, a service maintains a mobility path graph that represents roaming transitions between wireless access points in a network by client devices in the network. The service associates metrics regarding roaming delays to mobility paths in the mobility path graph. The service identifies a roaming boundary change that is predicted to reduce roaming delays between two or more wireless access points in the network, in part by assessing the metrics regarding roaming delays associated with the mobility paths in the mobility path graph. The service provides an indication of the identified roaming boundary change to a user interface.
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公开(公告)号：US10375565B2
公开(公告)日：2019-08-06
申请号：US15783342
申请日：2017-10-13
Applicant: Cisco Technology, Inc.
Inventor： Jean-Philippe Vasseur , Vinay Kumar Kolar , Santosh Pandey
Abstract: In one embodiment, a service receives data indicative of roaming failures along mobility paths in a network. The mobility paths represent ordered series of wireless access points via which wireless clients have accessed the network over time. The service uses, based on the data indicative of the roaming failures, a machine learning-based model to associate mobility path failure metrics with portions of the mobility paths. The service identifies, for a first mobility path, an alternate mobility path that has a lower mobility path failure metric than that of the first mobility path. The service triggers a mobility path reroute for a particular client device in the network on the first mobility path to the alternate mobility path.
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公开(公告)号：US10321344B2
公开(公告)日：2019-06-11
申请号：US15596715
申请日：2017-05-16
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Robert Edgar Barton , Jerome Henry , Gerard Ian McGarry , Stephen M. Orr , Santosh Pandey
IPC: H04W24/08 , H04B17/391 , H04W84/12
Abstract: An example method is provided in one example embodiment and may include gathering current wireless local area network (WLAN) data for a WLAN, wherein the WLAN data comprises network data, Radio Frequency (RF) data, and transmission data for a plurality of user equipment (UE) operating within the WLAN; generating a plurality of color maps; merging the plurality of color maps to generate a combined color map; and calculating a predicted application score for at least one UE operating within the WLAN based, at least in part, on application of the combined color map to a trained statistical model that represents linking relationships between the WLAN data gathered for the WLAN and a plurality of possible application scores for the plurality of UE. The plurality of color maps can include an RF color map, a transmission color map, and a Quality of Service color map.
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4.发明申请公开(公告)号：US20190116485A1
公开(公告)日：2019-04-18
申请号：US15783342
申请日：2017-10-13
Applicant: Cisco Technology, Inc.
Inventor： Jean-Philippe Vasseur , Vinay Kumar Kolar , Santosh Pandey
Abstract: In one embodiment, a service receives data indicative of roaming failures along mobility paths in a network. The mobility paths represent ordered series of wireless access points via which wireless clients have accessed the network over time. The service uses, based on the data indicative of the roaming failures, a machine learning-based model to associate mobility path failure metrics with portions of the mobility paths. The service identifies, for a first mobility path, an alternate mobility path that has a lower mobility path failure metric than that of the first mobility path. The service triggers a mobility path reroute for a particular client device in the network on the first mobility path to the alternate mobility path.
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公开(公告)号：US10206058B2
公开(公告)日：2019-02-12
申请号：US15826646
申请日：2017-11-29
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01C21/20 , H04B17/21 , H04W64/00 , H04B17/318 , H04B17/373
Abstract: Determining a location of a user device comprises a wireless system supported by wireless access points receiving signals from a user device. The wireless system estimates a location of the user device based on a coarse calculation based on an angle of arrival of the received signal and determines if the user device is in an area under an access point. The wireless system identifies received signal strength indicator values for the user device and uses the values and the calculated location of the user device to improve calibration of a received signal strength location model. If the system determines that the user is not in the area under the access point, the wireless system combines the coarse calculation location, a received signal strength determined location, and a previous received signal strength determined location, and estimates a location based on the combined calculations.
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Patent Agency Ranking
公开(公告)号：US10088548B2
公开(公告)日：2018-10-02
申请号：US14995395
申请日：2016-01-14
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey
Abstract: In an example embodiment, the orientation of a wireless device, such as an access point (AP) can be determined based on the location of neighboring wireless devices and the observed angle of arrival of signals from the wireless device at the neighboring wireless devices. For example, the angle of orientation can be determined by comparing an observed angle of arrival with the known actual angle between wireless devices. If a plurality of wireless devices measures the signal, the mean or median of the difference between observed angle of arrival of a signal from the wireless device with the actual angle for the plurality of wireless devices may be employed to determine the angular orientation.
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公开(公告)号：US09648615B2
公开(公告)日：2017-05-09
申请号：US14558200
申请日：2014-12-02
Applicant: Cisco Technology, Inc.
Inventor： Shaunak Joshi , Paul J. Stager , Brian D. Hart , Santosh Pandey , Matthew A. Silverman
CPC classification number: H04W72/0446 , H04W4/02 , H04W64/00
Abstract: A plurality of time slots are allocated during which a location procedure is performed for one or more target wireless devices. Select ones of a plurality of wireless access points at different positions are assigned to each time slot such that multiple wireless access points assigned to a given time slot are sufficiently separated. In addition, wireless access points are assigned to a corresponding one of a plurality of groups for each time slot such that wireless access points assigned to a group tune to a channel used by a wireless access point in the group that transmits one or more frames that are intended to provoke one or more response frames from the one or more wireless devices.
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公开(公告)号：US09258713B2
公开(公告)日：2016-02-09
申请号：US14278555
申请日：2014-05-15
Applicant: Cisco Technology, Inc.
Inventor： Raghuram Rangarajan , Brian D. Hart , Sujai Hajela , Santosh Pandey , David Kloper , Greg Corsetto , Allen J. Huotari
CPC classification number: H04W12/08 , H04W4/80 , H04W12/12 , H04W64/003
Abstract: Techniques are presented for detecting rogue wireless beacon devices. Wireless transmissions from beacon devices are received at a plurality of receiver devices. The wireless transmissions of the beacon devices comprise packets that carry information used for location-based services for mobile wireless devices. Content of one or more fields of the packets transmitted by the beacon devices and received by one or more of the receiver devices is obtained. The content of one or more fields of the packets is analyzed to detect an unauthorized beacon device. The analyzing operation may involve comparing the content of the one or more fields of the packets against a list that contains one or more identifiers for authorized beacon devices. In another form, analyzing may involve analyzing the content of the one or more fields of the packets with pattern information related to advertising content or advertising source.
Abstract translation: 提供了用于检测流氓无线信标设备的技术。 在多个接收机设备处接收来自信标设备的无线传输。 信标设备的无线传输包括携带用于移动无线设备的基于位置的服务的信息的分组。 获得由信标设备发送并由一个或多个接收机设备接收的分组的一个或多个字段的内容。 分析分组的一个或多个字段的内容以检测未经授权的信标设备。 分析操作可以包括将分组的一个或多个字段的内容与包含用于授权信标设备的一个或多个标识符的列表进行比较。 在另一种形式中，分析可以包括利用与广告内容或广告源相关联的模式信息来分析分组的一个或多个字段的内容。
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公开(公告)号：US11513181B2
公开(公告)日：2022-11-29
申请号：US16939614
申请日：2020-07-27
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Brian Donald Hart , Paul J. Stager , Santosh Pandey , David Kloper , Dan Lyons , Matthew A. Silverman
Abstract: In one embodiment, a method includes receiving a plurality of radio frequency chains at a wireless device in a block based modulation environment, recording subcarrier phases and differences between the subcarrier phases, and using the subcarrier phase differences to construct a feature vector for use in angle of arrival calculated positioning of a mobile device.
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公开(公告)号：US20190110185A1
公开(公告)日：2019-04-11
申请号：US15726543
申请日：2017-10-06
Applicant: Cisco Technology, Inc.
Inventor： Vinay Kumar Kolar , Jean-Philippe Vasseur , Santosh Pandey
Abstract: In one embodiment, a service maintains a mobility path graph that represents roaming transitions between wireless access points in a network by client devices in the network. The service associates metrics regarding roaming delays to mobility paths in the mobility path graph. The service identifies a roaming boundary change that is predicted to reduce roaming delays between two or more wireless access points in the network, in part by assessing the metrics regarding roaming delays associated with the mobility paths in the mobility path graph. The service provides an indication of the identified roaming boundary change to a user interface.
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