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公开(公告)号：US09823330B2
公开(公告)日：2017-11-21
申请号：US13886533
申请日：2013-05-03
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Brian Donald Hart , Paul J. Stager , Santosh Pandey , David Kloper , Dan Lyons , Matthew A. Silverman
CPC classification number: G01S3/38 , G01S1/68 , G01S3/48 , H04W64/006
Abstract: In one embodiment, an apparatus includes a plurality of antennas, a receiver in communication with said plurality of antennas for receiving one or more packets in a block based modulation environment, a switch interposed between a portion of the antennas and the receiver for switching between the antennas, and a processor for calculating angle of arrival for use in identifying a location of a mobile device transmitting the one or more packets.
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公开(公告)号：US20170325061A1
公开(公告)日：2017-11-09
申请号：US15662111
申请日：2017-07-27
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng , Brian Donald Hart
IPC: H04W4/02 , G01C21/26 , H04B17/318
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：US09693194B2
公开(公告)日：2017-06-27
申请号：US15077875
申请日：2016-03-22
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , H04B17/318 , G01C21/26
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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14.发明申请公开(公告)号：US20160286436A1
公开(公告)日：2016-09-29
申请号：US15174399
申请日：2016-06-06
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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公开(公告)号：US09219986B2
公开(公告)日：2015-12-22
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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Patent Agency Ranking
16.发明申请公开(公告)号：US20150163723A1
公开(公告)日：2015-06-11
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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公开(公告)号：US20140062789A1
公开(公告)日：2014-03-06
申请号：US14076531
申请日：2013-11-11
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Brian Donald Hart , Ilya Khasin
IPC: G01S5/04
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.
Abstract translation: 在示例实施例中，这里公开了一种包括与接口耦合的接口和位置确定逻辑的装置。 位置确定逻辑经由接口从已知位置处的多个接收设备接收表示无线设备的测量信号强度的数据。 位置确定逻辑基于所测量的信号强度和无线设备的第一发射功率来确定估计位置。 位置确定逻辑基于来自已知位置处的多个设备的测量信号强度和估计位置来确定无线设备的经修改的发射功率。 位置确定逻辑基于测量的信号强度和无线设备的经修改的发射功率来确定修改的估计位置。
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公开(公告)号：US10149093B2
公开(公告)日：2018-12-04
申请号：US15662111
申请日：2017-07-27
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng , Brian Donald Hart
IPC: H04W4/02 , H04B17/318 , H04B17/21 , H04B17/27 , G01C21/20 , H04B17/391
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：US09864042B2
公开(公告)日：2018-01-09
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.
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公开(公告)号：US09843965B2
公开(公告)日：2017-12-12
申请号：US15174399
申请日：2016-06-06
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.
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