SATELLITE SIGNAL MEASUREMENT IN THE PRESENCE OF INTERFERENCE

    公开(公告)号:US20220381921A1

    公开(公告)日:2022-12-01

    申请号:US17330785

    申请日:2021-05-26

    Abstract: A method of measuring a satellite signal includes: receiving, at an apparatus, the satellite signal; determining, at the apparatus, a first code phase of the satellite signal, corresponding to a first time period, based on a first portion of the satellite signal that has a first bandwidth; determining, at the apparatus, a second code phase of the satellite signal, corresponding to a second time period, based on a second portion of the satellite signal that has a second bandwidth, where the second bandwidth is larger than the first bandwidth, and where the second time period is separate from the first time period; and determining, at the apparatus, a carrier phase of the satellite signal based on the first portion of the satellite signal and a third portion of the satellite signal that has the first bandwidth and spans the second time period.

    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.

    ADAPTIVE OSCILLATOR FREQUENCY ERROR ESTIMATION BASED ON OSCILLATOR TEMPERATURE NOISE LEVEL

    公开(公告)号:US20240061062A1

    公开(公告)日:2024-02-22

    申请号:US17820426

    申请日:2022-08-17

    CPC classification number: G01S5/0036 G01S5/0236

    Abstract: Disclosed are techniques for oscillator frequency error estimation. In an aspect, an electronic device receives, from a power management integrated circuit (PMIC), a plurality of temperature measurements of an oscillator of the electronic device, determines a temperature noise level estimate of the oscillator based on the plurality of temperature measurements, determines, based on the temperature noise level estimate, a set of parameters for determining a frequency error estimate of the oscillator, and determines the frequency error estimate of the oscillator based on the set of parameters.

    RADIO CONTROL BASED ON OPERATIONAL PERFORMANCE FEEDBACK

    公开(公告)号:US20220201508A1

    公开(公告)日:2022-06-23

    申请号:US17689639

    申请日:2022-03-08

    Abstract: A wireless communication system includes: a first sub-system including a first radio and a second radio, each including a transceiver or a receiver; and a second sub-system coupled to the first sub-system and including: a first antenna configured to convey signals; a first tuner coupled to the first antenna; and a controller coupled to the first tuner, the controller being configured to cause the first tuner to adjust a characteristic of the first tuner; where the controller and/or the first tuner is configured to provide, to the first sub-system, an indication of an effect on operational performance of a portion of the second sub-system coupled to the second radio based on operation of the first tuner or the first antenna, or a combination thereof; where the first sub-system is configured to modify operation of the second radio based on the indication of the effect on operational performance.

    RADIO CONTROL BASED ON OPERATIONAL PERFORMANCE FEEDBACK

    公开(公告)号:US20200100121A1

    公开(公告)日:2020-03-26

    申请号:US16139128

    申请日:2018-09-24

    Abstract: A wireless communication system includes: a first sub-system including a first radio and a second radio, each including a transceiver or a receiver; and a second sub-system coupled to the first sub-system and including: a first antenna configured to convey signals; a first tuner coupled to the first antenna; and a controller coupled to the first tuner, the controller being configured to cause the first tuner to adjust a characteristic of the first tuner; where the controller and/or the first tuner is configured to provide, to the first sub-system, an indication of an effect on operational performance of a portion of the second sub-system coupled to the second radio based on operation of the first tuner or the first antenna, or a combination thereof; where the first sub-system is configured to modify operation of the second radio based on the indication of the effect on operational performance.

    ACCURACY-BASED GNSS BAND SELECTION
    10.
    发明公开

    公开(公告)号:US20240012157A1

    公开(公告)日:2024-01-11

    申请号:US17811850

    申请日:2022-07-11

    CPC classification number: G01S19/40 G01S19/396 G01S19/33 G01S19/24

    Abstract: In some implementations, an apparatus may receive a request for the Global Navigation Satellite System (GNSS) position fix information. The request may include an accuracy requirement. The apparatus may determine a set of GNSS bands to use to determine the GNSS position fix information. The set of GNSS bands may comprise one or more bands from a plurality of available GNSS bands, and determining the set of GNSS bands to use may be based at least in part on the accuracy requirement. The apparatus may determine the GNSS position fix information based at least in part on GNSS signals received via the selected set of GNSS bands. The apparatus may provide the GNSS position fix information (e.g., to an application processor). The GNSS position fix information may comprise a GNSS position fix, pseudorange information, or both.

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