GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) RECEIVER OPERATION DURING SPOOFING

    公开(公告)号:US20220035044A1

    公开(公告)日:2022-02-03

    申请号:US17389028

    申请日:2021-07-29

    Abstract: In conditions in which Global Navigation Satellite System (GNSS) signal spoofing is likely occurring, a GNSS receiver may be operated in a reduced operational state with respect to one or more GNSS bands that are likely being spoofed. According to embodiments, a reduced operational state with regard to a GNSS band may comprise performing one or more of the following functions with respect to that GNSS band: disabling data demodulation and decoding, disabling time setting (e.g., time of week (TOW), week number, etc.) disabling acquisition of unknown/not visible satellites, disabling satellite differences, disabling error recovery, reducing non-coherent integration time, and duty cycling the power for one or more receiver blocks associated with the GNSS band.

    QUALIFIED JAMMING SIGNAL DETECTION
    3.
    发明公开

    公开(公告)号:US20230353272A1

    公开(公告)日:2023-11-02

    申请号:US17732061

    申请日:2022-04-28

    CPC classification number: H04K3/90 H04K3/22 G01S19/21 G01S19/256 G01S19/10

    Abstract: A jamming signal detection control method includes: receiving, at a satellite positioning signal receiver, one or more satellite positioning signals; determining, at the satellite positioning signal receiver, one or more quality metric values based on the one or more satellite positioning signals; determining, at the satellite positioning signal receiver, whether the one or more quality metric values are indicative of jamming; and activating, at the satellite positioning signal receiver and in response to the one or more quality metric values being indicative of jamming, a jammer detection technique to determine whether a jamming signal is received by the satellite positioning signal receiver.

    MULTIPATH MITIGATION FOR MULTIBAND GNSS RECEIVER

    公开(公告)号:US20220326390A1

    公开(公告)日:2022-10-13

    申请号:US17809265

    申请日:2022-06-27

    Abstract: In some aspects, a mobile device is configured to obtain a set of satellite signal measurements through measuring, for each satellite in a first plurality of satellites, a first signal from the satellite in a first frequency band and a second signal from the satellite in a second frequency band. The first plurality of satellites can include at least a first satellite, a second satellite, and a third satellite. The mobile device can determine that at least one measurement in the set of satellite signal measurements is impaired, based on a difference between a measurement of the first signal from a particular satellite (e.g., the first satellite, the second satellite, or the third satellite) and a measurement of the second signal from the particular satellite. A position of the mobile device can then be determined based on non-impaired measurements in the set of satellite signal measurements.

    WATER-RELATED ACTION TRIGGERING
    6.
    发明申请

    公开(公告)号:US20180329075A1

    公开(公告)日:2018-11-15

    申请号:US15711130

    申请日:2017-09-21

    CPC classification number: G01S19/19 A63B2244/20 G01S19/34

    Abstract: A method of triggering an action includes: determining that a mobile device is under water by: determining that an amplitude of a satellite positioning system (SPS) signal, or a wireless communication signal, or a combination thereof, received by the mobile device is below a threshold amplitude; or comparing data from a motion sensor of the mobile device with motion sensor data characteristic of entering water; or a combination thereof; determining that the mobile device has an action-inducing relationship to water; and taking the action in response to determining that the mobile device has the action-inducing relationship to water.

    QUALIFIED JAMMING SIGNAL DETECTION

    公开(公告)号:US20250116783A1

    公开(公告)日:2025-04-10

    申请号:US18989253

    申请日:2024-12-20

    Abstract: A jamming signal detection control method includes: receiving, at a satellite positioning signal receiver, one or more satellite positioning signals; determining, at the satellite positioning signal receiver, one or more quality metric values based on the one or more satellite positioning signals; determining, at the satellite positioning signal receiver, whether the one or more quality metric values are indicative of jamming; and activating, at the satellite positioning signal receiver and in response to the one or more quality metric values being indicative of jamming, a jammer detection technique to determine whether a jamming signal is received by the satellite positioning signal receiver.

    CONCURRENT OPERATION OF SPS RECEIVER AND WIRELESS TRANSMITTER

    公开(公告)号:US20230022979A1

    公开(公告)日:2023-01-26

    申请号:US17937407

    申请日:2022-09-30

    Abstract: A mobile device may be configured to perform concurrent Satellite Positioning System (SPS) operation and wireless communications when uplink signals transmitted by the mobile device interferes with the reception of SPS signals in one or more frequency bands. The mobile device may determine if the SPS receiver has already acquired SPS signals and is in a tracking state. If the SPS receiver is not in a tracking state, an SPS acquisition procedure is initiated before the wireless communication session is initiated. The SPS acquisition procedure is performed until the SPS receiver reaches a tracking state, or until a timeout is reached. Once the SPS receiver is in a tracking state, the wireless communication session may be initiated, during which the SPS receiver is controlled, e.g., to perform signal blanking, measurement exclusion, or disable SPS reception, to mitigate interference with SPS signals.

    MANAGEMENT OF CONCURRENT GNSS RECEPTION AND WIRELESS TRANSMISSION

    公开(公告)号:US20210157014A1

    公开(公告)日:2021-05-27

    申请号:US17102905

    申请日:2020-11-24

    Abstract: Disclosed herein are techniques for managing concurrent reception of satellite position signals and transmission of wireless network signals. In some embodiments, a measurement engine is configured to generate measurements based on Global Navigation Satellite System (GNSS) signals received by a GNSS wireless receiver, including a first measurement based on a first GNSS signal. A determination is made as to whether a wireless transmitter is active in a first frequency band when the GNSS wireless receiver receives the first GNSS signal, where the first frequency band is a frequency band of the first GNSS signal. In response to a determination that the wireless transmitter is active in the first frequency band when the GNSS wireless receiver receives the first GNSS signal, a position calculation operation and/or a clock bias calculation operation can be performed using measurements other than the first measurement.

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