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公开(公告)号：US09749786B1
公开(公告)日：2017-08-29
申请号：US15077883
申请日：2016-03-22
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng , Brian Donald Hart
IPC: H04W4/02 , H04B17/318 , G01C21/26
CPC classification number: H04W4/02 , G01C21/20 , H04B17/21 , H04B17/27 , H04B17/318 , H04B17/3913
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 a access point. If so, the wireless system performs a fine location calculation. 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 and a received signal strength determined location and estimates a location based on the combined calculations.
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公开(公告)号：US09658315B2
公开(公告)日：2017-05-23
申请号：US14076531
申请日：2013-11-11
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Brian Donald Hart , Ilya Khasin
CPC classification number: G01S5/04 , G01S5/021 , G01S5/0252 , G01S5/14 , H04W52/146 , H04W52/245 , H04W52/283
Abstract: In an example embodiment, there is disclosed herein, an apparatus comprising an interface and location determination logic coupled with the interface. The location determination logic receives data representative of measured signal strengths for a wireless device from a plurality of receiving devices at known locations via the interface. The location determination logic determines an estimated location based on the measured signal strengths and a first transmit power for the wireless device. The location determination logic determines a revised transmit power for the wireless device based on the measured signal strengths from the plurality of devices at known locations and the estimated location. The location determination logic determines a revised estimated location based on the measured signal strengths and the revised transmit power for the wireless device.
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公开(公告)号：US20170078843A1
公开(公告)日：2017-03-16
申请号：US15077875
申请日：2016-03-22
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01C21/26 , H04B17/318
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.
Abstract translation: 确定用户设备的位置包括由接入点支持的无线计算系统。 无线计算系统从用户设备接收信号。 系统基于RSSI估计用户设备的位置，并计算估计位置周围的边界。 无线计算系统选择边界内的多个部分，并根据接收到的信号的到达角度对用户装置的位置进行粗略的计算。 该系统确定具有更可能是用户设备的位置的粗略计算结果的多个部分的部分。 该系统基于每个部分内的接收信号的到达角度对位置进行精细计算。 系统将特定部分标识为用户设备的位置。
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24.发明授权Location classification accuracy for devices inside and outside of a deployment area 有权在部署区域内外的设备的位置分类精度公开(公告)号：US09485746B2
公开(公告)日：2016-11-01
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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25.发明授权公开(公告)号：US09380517B2
公开(公告)日：2016-06-28
申请号：US14101537
申请日：2013-12-10
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Andrew Myles
CPC classification number: H04W28/22 , H04W16/10 , H04W24/08 , H04W48/12 , H04W48/16 , H04W84/12 , H04W88/08
Abstract: Techniques are provided for determining, for at least one wireless access point in a wireless network, a number of first-time associations created with one or more wireless client devices in the wireless network. Based upon the determined number of first-time associations created, the number of discovery frames to be sent by the at least one wireless access point may be adjusted.
Abstract translation: 提供技术用于为无线网络中的至少一个无线接入点确定在无线网络中用一个或多个无线客户端设备创建的多个第一次关联。 基于所确定的第一次创建的关联数量，可以调整由至少一个无线接入点发送的发现帧的数量。
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Patent Agency Ranking
26.发明申请Location Measurement Optimized Off-Channel Scanning and Grouping of Access Points 有权位置测量优化的离线扫描和接入点分组公开(公告)号：US20160157225A1
公开(公告)日：2016-06-02
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.
Abstract translation: 分配多个时隙，在该时隙期间为一个或多个目标无线设备执行定位过程。 将选择不同位置的多个无线接入点中的一个分配给每个时隙，使得分配给给定时隙的多个无线接入点被充分分离。 此外，无线接入点被分配给每个时隙的多个组中的相应一个组，使得分配给组乐曲的无线接入点被组中的无线接入点使用的信道发送一个或多个帧， 旨在引起来自一个或多个无线设备的一个或多个响应帧。
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公开(公告)号：US20150334569A1
公开(公告)日：2015-11-19
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：US10448210B2
公开(公告)日：2019-10-15
申请号：US16136185
申请日：2018-09-19
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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29.发明申请公开(公告)号：US20180242178A1
公开(公告)日：2018-08-23
申请号：US15596715
申请日：2017-05-16
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Robert Edgar Barton , Jerome Henry , Gerard Ian Mc Garry , Stephen M. Orr , Santosh Pandey
IPC: H04W24/08 , H04B17/391
CPC classification number: 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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公开(公告)号：US20180084378A1
公开(公告)日：2018-03-22
申请号：US15826646
申请日：2017-11-29
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01C21/20 , H04B17/318
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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