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公开(公告)号：US09860692B2
公开(公告)日：2018-01-02
申请号：US15172711
申请日：2016-06-03
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , H04B17/318 , G01C21/20
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：US20170257746A1
公开(公告)日：2017-09-07
申请号：US15602391
申请日：2017-05-23
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
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：US20170094635A1
公开(公告)日：2017-03-30
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：US09572026B2
公开(公告)日：2017-02-14
申请号：US13652594
申请日：2012-10-16
Applicant: Cisco Technology, Inc.
Inventor： Brian Donald Hart , Santosh Pandey , Kayshav Dattatri
Abstract: In an example embodiment, a wireless device is operable to advertise a policy on the inclusion of the wireless device in a radio frequency map. For example, the wireless device may transmit a signal comprising a field in an extended capabilities information that indicates whether mapping of the wireless device is permissible. As another example, the wireless device may perform certain actions, such as changing media access control address, changing transmit power, and/or vary response times to prevent accurate mapping of the location of the wireless device.
Abstract translation: 在示例实施例中，无线设备可操作以在无线电频率映射中公布关于将无线设备包括在内的策略。 例如，无线设备可以在指示是否允许无线设备的映射的扩展能力信息中发送包括字段的信号。 作为另一示例，无线设备可以执行某些动作，例如改变媒体访问控制地址，改变发射功率和/或改变响应时间，以防止无线设备的位置的精确映射。
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公开(公告)号：US20160349348A1
公开(公告)日：2016-12-01
申请号：US14722712
申请日：2015-05-27
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey
CPC classification number: G01S5/0252 , G01S3/043 , G01S5/06
Abstract: Heatmap data, such as Angle-of-Arrival heatmap data, is generated and stored for a plurality of antennas of wireless communication device. A centroid of the plurality of antennas is determined. A heatmap is computed for the centroid for a measured parameter across a plurality of bins at coordinates within a region of interest. Heatmap data for the centroid is stored. For a given one of the plurality of antennas, a difference is computed between a heatmap for the given antenna and the heatmap for the centroid. The difference data representing the difference is stored for the given antenna.
Abstract translation: 为无线通信设备的多个天线生成并存储热图数据，例如到达角度热图数据。 确定多个天线的质心。 针对感兴趣区域内的坐标处的多个箱体中的测量参数的质心计算热图。 存储重心的热图数据。 对于多个天线中的给定的天线，在给定天线的热图和质心的热图之间计算差。 对于给定的天线存储表示差的差分数据。
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Patent Agency Ranking
36.发明授权公开(公告)号：US09310461B2
公开(公告)日：2016-04-12
申请号：US13835627
申请日：2013-03-15
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey
CPC classification number: G01S5/0247 , H04W64/006
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 measure 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.
Abstract translation: 在示例实施例中，诸如接入点（AP）的无线设备的方向可以基于相邻无线设备的位置以及来自无线设备在相邻无线设备处的观测到的到达角度来确定。 例如，可以通过将观察到的到达角与无线设备之间的已知实际角度进行比较来确定取向角度。 如果多个无线设备测量信号，则可以采用来自无线设备的信号的观察到的到达角度与多个无线设备的实际角度的平均值或中值，以确定角度定向。
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公开(公告)号：US09253693B2
公开(公告)日：2016-02-02
申请号：US13772896
申请日：2013-02-21
Applicant: Cisco Technology, Inc.
Inventor： Tak Ming Francis Pang , David S. Stephenson , Santosh Pandey , Vishal Satyendra Desai
IPC: H04W36/00
CPC classification number: H04W24/02 , H04W36/0083 , H04W36/165 , H04W72/10
Abstract: In an example embodiment, a neighbor radio/access point (AP) list is obtained. The neighbor AP list is optimized for a client that is associated with a current access point. The list may be optimized based on any one or combination of techniques, including but not limited to roaming patterns of previous clients that were associated with the current access point, radio frequency metrics, bandwidth requirements for the client, and/or any other suitable criteria. In particular embodiments, requests from the client to associate with an access point that is not on the optimized neighbor AP list may be denied.
Abstract translation: 在示例实施例中，获得相邻无线电/接入点（AP）列表。 邻居AP列表针对与当前接入点相关联的客户端进行了优化。 可以基于任何一种或多种技术组合来优化列表，包括但不限于与当前接入点相关联的先前客户端的漫游模式，射频度量，客户端的带宽要求和/或任何其它合适的准则 。 在特定实施例中，可以拒绝来自客户端的与不在优化的邻居AP列表上的接入点关联的请求。
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38.发明申请Location Classification Accuracy for Devices Inside and Outside of a Deployment Area 有权部署区域内外的设备的位置分类准确度公开(公告)号：US20150351071A1
公开(公告)日：2015-12-03
申请号：US14294392
申请日：2014-06-03
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey
CPC classification number: H04W64/003 , H04W24/00 , H04W24/02
Abstract: Techniques are presented to optimize location classification accuracy for wireless devices. A controller in communication with one or more wireless access points receives measurement data associated with signals received at one or more wireless access points from a plurality of wireless clients. The controller classifies each of the measurement data associated with a corresponding client as indicative a location inside of a particular region or outside of the particular region. The controller determines information of an actual location for each of the clients and classifies the information of the actual location as indicating a location inside of the particular region or outside of the particular region. For a given client whose classification of the information of the actual location does not match the classification of the corresponding measurement data, the controller modifies the information of the actual location of the given client.
Abstract translation: 提出技术来优化无线设备的位置分类精度。 与一个或多个无线接入点通信的控制器接收与来自多个无线客户端的一个或多个无线接入点处接收的信号相关联的测量数据。 控制器将与相应客户端相关联的每个测量数据分类为指示特定区域内或特定区域之外的位置。 控制器确定每个客户端的实际位置的信息，并将实际位置的信息分类为指示特定区域内或特定区域之外的位置。 对于对实际位置的信息分类与对应测量数据的分类不符的给定客户端，控制器修改给定客户端的实际位置的信息。
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公开(公告)号：US20140378066A1
公开(公告)日：2014-12-25
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：US10761177B2
公开(公告)日：2020-09-01
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
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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