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公开(公告)号：US10285108B1
公开(公告)日：2019-05-07
申请号：US15782197
申请日：2017-10-12
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 one or more client devices in the network. The service identifies, using the mobility path graph, one of the wireless access points in the network to which a particular client device is predicted to roam. The service performs, in advance of the particular client device initiating roaming to the one or more wireless access points, one or more roaming handshakes on behalf of the particular client device and with respect to the wireless access point to which the particular client device is predicted to roam. The service sends handshake data from the performed one or more roaming handshakes to the identified access point to which the particular client device is predicted to roam.
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公开(公告)号：US20190116539A1
公开(公告)日：2019-04-18
申请号：US15782197
申请日：2017-10-12
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 one or more client devices in the network. The service identifies, using the mobility path graph, one of the wireless access points in the network to which a particular client device is predicted to roam. The service performs, in advance of the particular client device initiating roaming to the one or more wireless access points, one or more roaming handshakes on behalf of the particular client device and with respect to the wireless access point to which the particular client device is predicted to roam. The service sends handshake data from the performed one or more roaming handshakes to the identified access point to which the particular client device is predicted to roam.
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公开(公告)号：US20190020977A1
公开(公告)日：2019-01-17
申请号：US16136185
申请日：2018-09-19
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01S5/00 , H04B17/318 , G01C21/26 , G01S5/02
CPC classification number: H04W4/023 , G01C21/26 , G01S5/0054 , G01S5/0268 , G01S5/0278 , G01S5/04 , G01S5/14 , H04B17/318 , H04W64/00
Abstract: Determining a location of a user device comprises a wireless computing system supported by an access point. The wireless computing system receives a signal from the user device. The system estimates a location of the user device based on RSSI and calculates a boundary around the estimated location. The wireless computing system selects a plurality of sections inside of the boundary and performs a coarse calculation of a location of the user device based on an angle of arrival of the received signal. The system determines sections of the plurality of sections that have results from the coarse calculation that are more likely to be a location of the user device. The system performs a fine calculation of the location based on the angle of arrival of the received signal within each of the sections. The system identifies a particular section as the location of the user device.
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公开(公告)号：US10104503B2
公开(公告)日：2018-10-16
申请号：US15602391
申请日：2017-05-23
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
Abstract: Determining a location of a user device comprises a wireless computing system supported by an access point. The wireless computing system receives a signal from the user device. The system estimates a location of the user device based on RSSI and calculates a boundary around the estimated location. The wireless computing system selects a plurality of sections inside of the boundary and performs a coarse calculation of a location of the user device based on an angle of arrival of the received signal. The system determines sections of the plurality of sections that have results from the coarse calculation that are more likely to be a location of the user device. The system performs a fine calculation of the location based on the angle of arrival of the received signal within each of the sections. The system identifies a particular section as the location of the user device.
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公开(公告)号：US20180045805A1
公开(公告)日：2018-02-15
申请号：US15725054
申请日：2017-10-04
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Brian Donald Hart , Paul J. Stager , Santosh Pandey , David Kloper , Dan Lyons , Matthew A. Sliverman
CPC classification number: G01S3/38 , G01S1/68 , G01S3/48 , H04W64/006
Abstract: In one embodiment, an apparatus includes a processor for processing 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, and memory for storing the subcarrier phases and the feature vector.
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Patent Agency Ranking
公开(公告)号：US20170280281A1
公开(公告)日：2017-09-28
申请号：US15172711
申请日：2016-06-03
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01C21/20 , H04B17/318
CPC classification number: H04W4/02 , G01C21/206 , H04B17/21 , H04B17/318 , H04B17/373 , H04W64/00
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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公开(公告)号：US09756601B2
公开(公告)日：2017-09-05
申请号：US15378453
申请日：2016-12-14
Applicant: Cisco Technology, Inc.
Inventor： Hui Liu , Santosh Pandey , Jiang Zhu
CPC classification number: H04W64/003 , H04W4/02 , H04W24/04 , H04W24/08 , H04W48/04
Abstract: Techniques are presented herein to provide human mobility pattern based modeling and tracking of a group of network enabled user devices associated with the same person. An association is made, at a tracking device, between a plurality of user devices and a user. Location information for each of the plurality of user devices is derived through network activity of the plurality of user devices. Locations for the plurality of user devices are derived from the location information. One or more predetermined user mobility pattern rules are applied to the plurality of user devices. User anomalies are detected when the tracked locations indicate that one or more of the plurality of user devices has violated one or more the predetermined user mobility rules.
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公开(公告)号：US09565584B2
公开(公告)日：2017-02-07
申请号：US13924913
申请日：2013-06-24
Applicant: Cisco Technology, Inc.
Inventor： Hui Liu , Santosh Pandey , Jiang Zhu
CPC classification number: H04W64/003 , H04W4/02 , H04W24/04 , H04W24/08 , H04W48/04
Abstract: Techniques are presented herein to provide human mobility pattern based modeling and tracking of a group of network enabled user devices associated with the same person. An association is made, at a tracking device, between a plurality of user devices and a user. Location information for each of the plurality of user devices is derived through network activity of the plurality of user devices. Locations for the plurality of user devices are derived from the location information. One or more predetermined user mobility pattern rules are applied to the plurality of user devices. User anomalies are detected when the tracked locations indicate that one or more of the plurality of user devices has violated one or more the predetermined user mobility rules.
Abstract translation: 这里呈现技术以提供基于人类移动性模式的建模和跟踪与同一个人相关联的一组启用网络的用户设备。 在跟踪设备处，在多个用户设备和用户之间进行关联。 通过多个用户装置的网络活动导出多个用户装置中的每一个的位置信息。 从位置信息导出多个用户设备的位置。 一个或多个预定的用户移动性模式规则被应用于多个用户设备。 当跟踪的位置指示多个用户设备中的一个或多个已经违反了一个或多个预定用户移动性规则时，检测到用户异常。
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公开(公告)号：US20150358892A1
公开(公告)日：2015-12-10
申请号：US14296928
申请日：2014-06-05
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Jagdish Girimaji , Neil R. Diener , Brian D. Hart
Abstract: A wireless access point uses broadcast Service Set Identifiers (SSIDs) to advertise services available to a user device within range of the access point. The access point receives information about a first service available from a first service provider, and generates a first SSID associated with the first service. The access point receives information about a second service available from a second service provider, and generates a second SSID associated with the second service. The access point broadcasts the first SSID during a first period of time in a wireless network, and broadcasts the second SSID in the wireless network during a second period of time that is non-overlapping with the first period of time.
Abstract translation: 无线接入点使用广播服务集标识符（SSID）在接入点的范围内通告用户设备可用的服务。 接入点接收关于可从第一服务提供商获得的第一服务的信息，并且生成与第一服务相关联的第一SSID。 接入点接收关于可从第二服务提供商获得的第二服务的信息，并且生成与第二服务相关联的第二SSID。 接入点在第一时间段内在无线网络中广播第一SSID，并且在与第一时间段不重叠的第二时间段内在无线网络中广播第二SSID。
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公开(公告)号：US20150304814A1
公开(公告)日：2015-10-22
申请号：US14258104
申请日：2014-04-22
Applicant: Cisco Technology Inc.
Inventor： Santosh Pandey , Brian D. Hart , Shaunak Joshi , David Kloper , Donald R. Peoples
CPC classification number: H04W4/023 , H04W48/16 , H04W56/001 , H04W64/003
Abstract: A wireless receiver (e.g., access point (AP)) is a member of a group of a plurality of receivers in a wireless local area network and time synchronized with other receivers in the group. A channel scan list is generated from a plurality of wireless channels available in one or more frequency bands. A channel is selected for the receiver to monitor from the channel scan list based on a current time at the receiver such that each of the plurality of receivers in the group are scanning the same channel at the same time. The selected channel is scanned and signal characteristic information (e.g., received signal strength (RSS)) is generated for the signals received during a given scan duration.
Abstract translation: 无线接收器（例如，接入点（AP））是无线局域网中的多个接收机的组的成员，并且与该组中的其他接收机同步的时间。 从一个或多个频带中可用的多个无线信道生成频道扫描列表。 基于接收机当前的时间，从频道扫描列表中选择频道以使接收机监视，使得组中的多个接收机中的每一个同时扫描相同的频道。 扫描所选择的信道，并且在给定的扫描持续时间内为接收到的信号生成信号特征信息（例如，接收信号强度（RSS））。
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