PRECISION WIRELESS STATION LOCATION
    1.
    发明公开

    公开(公告)号:US20240334384A1

    公开(公告)日:2024-10-03

    申请号:US18621028

    申请日:2024-03-28

    CPC classification number: H04W64/003 G01S5/0284 G01S11/02

    Abstract: Multiple methods for determining a location of a STA operating on a mesh wireless network are described herein. A STA finder is used to monitor changes in received signal strength at each access point of a group of access points operating the mesh wireless network. The changes in received signal strength are then utilized to determine a location of STAs operating on the mesh wireless network. Methods for identifying poor performance areas on the mesh wireless network using the position information and then providing recommendations for improving the performance of the mesh wireless network are also described herein.

    Feedback secured wireless ranging

    公开(公告)号:US12092717B2

    公开(公告)日:2024-09-17

    申请号:US17527980

    申请日:2021-11-16

    CPC classification number: G01S11/02 G07C9/00309 G07C2009/00769

    Abstract: A system and method for ranging secured by feedback of one or more channel metrics. The method may include: receiving, by a first modem, a first training signal, from a second modem; generating, by the first modem, a first estimate of a channel metric, based on the first training signal; receiving, by the first modem, from the second modem, a second estimate of the channel metric; determining, by the first modem, that the first estimate of the channel metric and the second estimate of the channel metric do not meet a similarity criterion; and denying, by the first modem, access to a resource.

    INFORMATION OUTPUT METHOD, INFORMATION OUTPUT DEVICE, AND RECORDING MEDIUM

    公开(公告)号:US20240121752A1

    公开(公告)日:2024-04-11

    申请号:US18543173

    申请日:2023-12-18

    CPC classification number: H04W64/003 G01S11/02

    Abstract: An information output method includes: obtaining travel information relating to travel of a mobile object capable of autonomously traveling and being subjected to at least one of remote operation or remote monitoring; obtaining location information relating to a remoting-required location where at least one of remote operation or remote monitoring is required; determining whether mobile objects will be located in one or more remoting-required locations at the same timing, based on the travel information and the location information; generating control information for controlling at least one mobile object, among the mobile objects, to prevent the mobile objects from being located in the one or more remoting-required locations at the same timing, when the mobile objects are determined to be located in the one or more remoting-required locations at the same timing; and outputting the control information.

    METHOD FOR ACTIVATING A VEHICLE FUNCTION AND ASSOCIATED ACTIVATION DEVICE

    公开(公告)号:US20240042963A1

    公开(公告)日:2024-02-08

    申请号:US18229859

    申请日:2023-08-03

    Abstract: A method for activating a vehicle function, by an activation device including a transceiver to communicate with “hands-free” access equipment. The transceiver is equipped with a gyroscope and a magnetometer and two receiving antennas that have a coefficient of electromagnetic coupling between them that is below a threshold. The method includes the following steps for at least two consecutive footsteps: transmission of a signal comprising data of the gyroscope and the magnetometer of the “hands-free” equipment to the vehicle; comparison of the data with representative values of the gyroscope and the magnetometer of the transceiver; determination of a first direction of the user; determination of a second direction of the user based on an estimation of a first angle of arrival of the signal towards the transceiver; comparison of the first direction and the second direction; activation of the vehicle function on the basis of the result of the comparison.

    Time-of-arrival-based method for range-based filtering

    公开(公告)号:US11802950B2

    公开(公告)日:2023-10-31

    申请号:US17637007

    申请日:2020-08-18

    Inventor: Fabian Wiacek

    CPC classification number: G01S11/02

    Abstract: A disclosed method includes receiving a time-of-arrival range filter configuration and a reference signal physical transmission time from a network node at a reference signal physical reception time. The time-of-arrival range filter configuration includes at least one of a time-of-arrival filter status, a time-of-arrival filter distance range, and a time-of-arrival configuration. A time difference between the reference signal physical reception time and the reference signal physical transmission time is determined, and a distance to the network node based on the time difference is calculated. Whether the distance is within the time-of-arrival filter distance range is determined, and the time-of-arrival filter status is determined. Based on the time-of-arrival filter status, actions are performed in accordance with the time-of-arrival configuration applicable for the distance.

    Add-on module for a device, server unit, localization method, computer program, and corresponding storage medium

    公开(公告)号:US11774568B2

    公开(公告)日:2023-10-03

    申请号:US16863248

    申请日:2020-04-30

    Inventor: Quoc-Viet Nguyen

    CPC classification number: G01S11/02 G01R29/0807

    Abstract: An apparatus or an add-on module for a, in particular mobile, device, is disclosed. In an embodiment, the device to be localized or the add-on module uses a measuring unit to measure, via suitable sensors, a local electromagnetic field distribution generated by a given infrastructure. An instantaneous position of the add-on module or of the device equipped therewith is then determined by comparing the measured field distribution with a specified map. In order to facilitate tracking of the add-on module or of the device, the measured field distribution and/or the determined position can be sent via a wireless data connection to a server unit.

    Position Calculating Method, Distance Calculating Method, and Beacon

    公开(公告)号:US20190208492A1

    公开(公告)日:2019-07-04

    申请号:US16331598

    申请日:2017-09-25

    Abstract: In a position calculating method performed by a system including beacons, and a control device capable of communicating with the beacons: at least one of the plurality of beacons receives, from a terminal present in the radio wave reaching distance of the beacon, a first signal including terminal identification information identifying the terminal, measures the reception strength of the received signal, and transmits a second signal which includes the terminal identification information, the reception strength and beacon identification information identifying the beacon; and the control device receives the second signal from one of the plurality of beacons, and, on the basis of the position information of the beacon corresponding to the beacon identification information included in the second signal, and on the basis of the reception strength included in the second signal, calculates the position of the terminal corresponding to the terminal identification information included in the second signal.

    Method for Distance Determination
    10.
    发明申请

    公开(公告)号:US20190187263A1

    公开(公告)日:2019-06-20

    申请号:US16224124

    申请日:2018-12-18

    Inventor: Jac Romme

    CPC classification number: G01S11/08 G01S11/02 G01S11/06

    Abstract: A method for determining a distance between a first radio signal transceiver and a second radio signal transceiver using narrowband ranging comprises calculating a preliminary estimate of a value proportional to a one-way frequency domain channel response, based on measurements of signal phase and signal strength; calculating, for pairs of adjacent frequencies, an estimate of a value proportional to a time synchronization offset between a clock used by the first radio signal transceiver and a clock used by the second radio signal transceiver, and determining a final estimate of a value proportional to the one-way frequency domain channel response based on the preliminary estimate and adjacent estimates for the value proportional to the time synchronization offset, where the final estimate is used for the final distance determination.

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