公开(公告)号：US11917573B2

公开(公告)日：2024-02-27

申请号：US17830245

申请日：2022-06-01

申请人： Skyhook Wireless, Inc.

发明人： Simon Issakov ,  Larry Vincent Dodds ,  Robert Anderson

IPC分类号： H04J3/06 ,  G06F15/173 ,  H04W24/00 ,  H04W56/00 ,  H04W4/80 ,  G06F16/23 ,  G06F16/29 ,  G01S5/02 ,  H04W64/00

CPC分类号： H04W56/0065 ,  G01S5/021 ,  G01S5/0242 ,  G06F16/23 ,  G06F16/29 ,  H04W4/80 ,  H04W64/003

摘要： In various embodiments, crowd sourcing techniques are provided to enable RTT-based positioning of UE. To address issues of discovering which beacons (e.g., Wi-Fi APs, cellular base stations, BLE transmitters, etc.) support measurement of RTT (e.g., according to IEEE 802.11mc, 3GPP Release 16, etc.), beacon RTT capabilities may be crowd-sourced from UE and maintained by a cloud-based location platform in a beacon database (or more specifically, a RTT database portion thereof). To address the issue of determining physical antenna positions, RTT measurements may be crowd-sourced from UE for those beacons that are RTT capable, and used by a trilateration algorithm (e.g., a WLS multilateration algorithm) to determine physical antenna positions, which also may be maintained in the beacon database. Accuracy of the trilateration may be enhanced by obtaining raw GNSS measurements (e.g., psuedoranges) from the UE, and performing a cloud-based RTK GNSS position fix for the UE.

公开(公告)号：US11914062B2

公开(公告)日：2024-02-27

申请号：US17286547

申请日：2018-10-23

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： András Rácz ,  Tamas Borsos ,  Péter Hága ,  Peter Vaderna ,  András Veres

IPC分类号： G01S5/02 ,  G01S5/12

CPC分类号： G01S5/0242 ,  G01S5/021 ,  G01S5/12

摘要： Calibrating a positioning system comprising a plurality of anchor nodes used to determine tag positions within a localization area using radio technology. The method includes performing, at a plurality of first measurement points in the localization area using the localization tag, first ranging measurements with respect to the plurality of anchor nodes using the radio technology to determine respective first distances from the measurement device to the plurality of anchor nodes and performing, at the plurality of first measurement points using the at least one odometry sensor, first odometry measurements to estimate respective first positions of the measurement device in the localization area, estimating locations of the plurality of anchor nodes based on the respective first distances determined by the first ranging measurements and the respective first positions estimated by the first odometry measurements, and calibrating the positioning system using the estimated locations of the plurality of anchor nodes.

公开(公告)号：US20240036145A1

公开(公告)日：2024-02-01

申请号：US18482046

申请日：2023-10-06

申请人： Avago Technologies International Sales Pte. Limited

发明人： Thomas Francis BAKER

IPC分类号： G01S3/48 ,  G01S5/04 ,  G01S5/02 ,  H04W4/80 ,  H04W4/33 ,  H04L67/52

CPC分类号： G01S3/48 ,  G01S5/04 ,  G01S5/0231 ,  H04W4/80 ,  G01S5/0289 ,  H04W4/33 ,  G01S5/0242 ,  H04L67/52

摘要： A system for detecting angle-of-arrival (AoA) includes a first device and at least one second device. The first device transmits a Bluetooth (BT) packet, and the second device receives the BT packet and determines an AoA of the BT packet. The second device includes a first radio-frequency (RF) antenna to receive a first RF signal and a second RF antenna to receive a second RF signal. The second device also includes a first BT core and a second BT-core and a processing circuit. The first BT core is coupled to the first RF antenna and is used to generate a first signal based on the first RF signal. The second BT core is coupled to the second RF antenna and generates a second signal based on the second RF signal. The processing circuit measures a phase difference between the first signal and the second signal and determines the AoA based on the phase difference.

公开(公告)号：US11869350B2

公开(公告)日：2024-01-09

申请号：US17538237

申请日：2021-11-30

申请人： Regents of the University of Minnesota

发明人： John Hourdos ,  Gordon Parikh

IPC分类号： G08G1/0955 ,  G06Q50/08 ,  G06Q10/0631 ,  G06F3/04817 ,  G01S5/00 ,  G01S5/02

CPC分类号： G08G1/0955 ,  G01S5/0054 ,  G01S5/0242 ,  G06F3/04817 ,  G06Q10/06313 ,  G06Q50/08

摘要： A computer system includes a memory and a processor. The processor executes instructions to perform steps that include receiving a message from an asset tracking device, the message comprising position information for the asset tracking device and a traffic control device type for a traffic control device that the asset tracking device is attached to. The processor uses the received message to determine a road that the traffic control device is positioned on and a location of the traffic control device along the road.

公开(公告)号：US20230419070A1

公开(公告)日：2023-12-28

申请号：US17850281

申请日：2022-06-27

申请人： Cisco Technology, Inc.

发明人： Jeffrey Owen Apcar ,  Gonzalo Salgueiro ,  Andrew Malcolm Stanley ,  Maria Soledad Palmero Amador ,  Esther Roure Vila

IPC分类号： G06K19/07 ,  G06K17/00 ,  G06Q10/08 ,  H04W4/029 ,  G01S5/02

CPC分类号： G06K19/0723 ,  G06K17/0022 ,  G06Q10/08 ,  H04W4/029 ,  G01S5/0242

摘要： Presented herein are techniques to geographically track and monitor an unpowered device. A method includes during a powered off state of the device, and upon detecting a predetermined event, enabling a radio frequency monitoring tag affixed to the device to collect, via radio frequency reception, information indicative of a geographical location of the radio frequency monitoring tag, storing the information indicative of the geographical location of the radio frequency monitoring tag in memory of the radio frequency monitoring tag, and upon powering up of the device, sending by the device, to a remote server, the information indicative of the detected geographical location of the radio frequency monitoring tag.

公开(公告)号：US20230417861A1

公开(公告)日：2023-12-28

申请号：US17848582

申请日：2022-06-24

申请人： QUALCOMM Incorporated

发明人： Stephen William EDGE ,  Thien NGUYEN ,  Bapineedu Chowdary GUMMADI

IPC分类号： G01S5/02 ,  H04W64/00 ,  H04W24/10

CPC分类号： G01S5/0242 ,  H04W64/003 ,  H04W24/10

摘要： Techniques are provided for coordinating radio frequency (RF) sensing by a plurality of wireless devices. Wireless devices obtain RF sensing coordination information that includes orthogonality information for transmission and reception of RF sensing signals to reduce or eliminate interference between RF sensing by different devices. The orthogonality information may be provided by a server, another wireless device, or a group of wireless devices. The orthogonality information is used by a wireless device to transmit and receive RF sensing signals that are orthogonal to RF sensing signals transmitted and received by other nearby wireless devices. The orthogonality information may be for orthogonality in a spatial domain, time domain, frequency domain, code domain, or some combination of these. The wireless devices perform RF sensing operations based at least in part on the RF sensing coordination information and report the RF sensing results.

公开(公告)号：US20230375657A1

公开(公告)日：2023-11-23

申请号：US18248681

申请日：2020-10-12

申请人： Hewlett-Packard Development Company, L.P.

发明人： Ravi Shankar Subramaniam

IPC分类号： G01S5/02 ,  H04W64/00 ,  G01S13/76

CPC分类号： G01S5/0242 ,  H04W64/00 ,  G01S13/76

摘要： In an example implementation according to aspects of the present disclosure, a wireless anchor node comprises a wireless communication interface and a processor communicatively coupled to the wireless communication interface. The processor receives a wireless signal from a source access node. The location of the source access node is verified. The processor determines a distance measurement between the wireless anchor node and the source access node based on the wireless signal and transfers the distance measurement between the wireless anchor node and the source access node to a target access node over an intermediate anchor node. In response, the processor receives a location error from the target access node over the intermediate anchor node. The location of the target access node is verified. The processor calibrates the distance measurement between the wireless anchor node and the source access node based on the location error.

公开(公告)号：US20230324499A1

公开(公告)日：2023-10-12

申请号：US18040743

申请日：2020-08-18

申请人： Google LLC

发明人： Mohammed Khider ,  Luigi Bruno ,  Wei Wang

IPC分类号： G01S5/00 ,  G01S5/02

CPC分类号： G01S5/012 ,  G01S5/0063 ,  G01S5/02529 ,  G01S5/0036 ,  G01S5/0242 ,  G01S2205/02 ,  H04W64/006

摘要： This document describes a client-server approach for indoor-outdoor detection of an electronic device, and associated systems and methods. A server (104) collects crowdsourced information (140) from devices that detected a plurality of access points. An electronic device (102), performing a wire-less-network scan, detects access points (122) within range and detects sensor data (126) from other sensors (124). The electronic device (102) transmits such information to the server (104). The server accesses the crowdsourced information (140) to determine, per access point (122) detected in the scan, a percentage of total detections of the access point that are accompanied by a GPS signal of a device that detected the access point and an RSS value below which no such GPS signal accompanies the detections. The percentage and the RSS value enable a determination of a probability indicating whether the electronic device (102) is located outdoors, lightly indoors, or deep indoors, which enables the electronic device to trigger a corresponding function.

公开(公告)号：US20230221399A1

公开(公告)日：2023-07-13

申请号：US18009285

申请日：2021-06-08

申请人： WITAGG, INC.

发明人： Jing Wang ,  Hongjun Zhu

IPC分类号： G01S5/02 ,  H04W4/029

CPC分类号： G01S5/0242 ,  G01S5/0249 ,  H04W4/029

摘要： A device for estimating a fixed position of a wireless communication is provided. The device comprises a radio connected to an antenna array, a memory and a process. The radio can receive a first signal transmitted from a first direction by the wireless communication device to the movable device, and a second signal transmitted from a second direction by the wireless communication device to the movable device. The processor can calculate a first angle of arrival (AOA) a second AOA. The processor can estimate the fixed position of the wireless communication device based on the first AOA, the second AOA, the first position and the second position.

公开(公告)号：US20190195981A1

公开(公告)日：2019-06-27

申请号：US15853038

申请日：2017-12-22

申请人： NXP B.V.

发明人： Jingfeng Ding ,  Ghiath Al-kadi ,  Erich Merlin

IPC分类号： G01S5/10 ,  G01S1/02 ,  G01S5/02

CPC分类号： G01S5/10 ,  G01S1/02 ,  G01S3/50 ,  G01S5/0231 ,  G01S5/0242 ,  G01S5/04 ,  G01S5/08

摘要： Embodiments of methods for determining a location of a mobile device, a mobile device, and a location beacon system are described. In an embodiment, a method for determining a location of a mobile device involves receiving, at a dual-antenna receiver of the mobile device, a plurality of ultra wide band (UWB) signals from a group of unsynchronized beacons having a quadrilateral formation, at the mobile device, determining angle of arrival (AoA) information from the UWB signals, and at the mobile device, calculating the location of the mobile device based on the AoA information. Other embodiments are also described.