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    Location and range determination using broadcast messages
    21.
    发明授权
    Location and range determination using broadcast messages 有权

    公开(公告)号：US10291419B2

    公开(公告)日：2019-05-14

    申请号：US14848160

    申请日：2015-09-08

    Applicant: QUALCOMM Incorporated

    Inventor： Jubin Jose ,  Urs Niesen ,  Venkatesan Nallampatti Ekambaram ,  Xinzhou Wu

    IPC: H04L12/18 ,  H04W64/00 ,  G01S5/00 ,  G01S5/02

    Abstract: Disclosed are implementations that include a method, at a mobile device, including receiving multiple broadcast messages transmitted by multiple stationary wireless devices, and obtaining first information relating to each of the multiple broadcast messages, with at least some of the first information being included in the multiple broadcast messages, and second information relating to at least one earlier broadcast communication received by at least one of the multiple stationary wireless devices, prior to transmission of the at least one of the multiple broadcast messages, from at least one other of the multiple stationary wireless devices, with the second information included in the at least one of the multiple broadcast messages. The method also include determining location information for the mobile device based on the first information, the second information, and known positions of at least some of the multiple stationary wireless devices.

    SIDELINK POSITIONING BASED ON PHYSICAL RANGING SIGNALS
    27.
    发明申请
    SIDELINK POSITIONING BASED ON PHYSICAL RANGING SIGNALS 有权

    公开(公告)号：US20220272634A1

    公开(公告)日：2022-08-25

    申请号：US17741743

    申请日：2022-05-11

    Applicant: QUALCOMM Incorporated

    Inventor： Chang-Sik CHOI ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Urs Niesen ,  Jubin Jose ,  Anantharaman Balasubramanian

    IPC: H04W52/02 ,  H04W4/46 ,  H04W4/02 ,  H04W48/10 ,  H04W56/00

    Abstract: A user equipment (UE) in a vehicle (V-UE) broadcasts multi-phased ranging signals with which other entities may determine the range to the V-UE. The multi-phased ranging signals may include a first message, which may be broadcast in the Intelligent Transport System (ITS) spectrum, includes ranging information, such as a source identifier, location information for the broadcasting V-UE, and an expected time of broadcast of the ranging signal. The ranging signal may then be broadcast at the expected time and may include the source identifier. A second message, which be broadcast in the ITS spectrum, may include clock error information for the V-UE. A receiving entity may determine the range to the V-UE based on the time of arrival of the ranging signal and the expected time of transmission, as well as the clock error information. The receiving entity may further generate a position estimate based on the received location information.

    Sidelink positioning based on physical ranging signals
    28.
    发明授权
    Sidelink positioning based on physical ranging signals 有权

    公开(公告)号：US11363530B2

    公开(公告)日：2022-06-14

    申请号：US16992939

    申请日：2020-08-13

    Applicant: QUALCOMM Incorporated

    Inventor： Chang-Sik Choi ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Urs Niesen ,  Jubin Jose ,  Anantharaman Balasubramanian

    IPC: H04W24/00 ,  H04W52/02 ,  H04W48/10 ,  H04W4/02 ,  H04W4/46 ,  H04W56/00

    Abstract: A user equipment (UE) in a vehicle (V-UE) broadcasts multi-phased ranging signals with which other entities may determine the range to the V-UE. The multi-phased ranging signals may include a first message, which may be broadcast in the Intelligent Transport System (ITS) spectrum, includes ranging information, such as a source identifier, location information for the broadcasting V-UE, and an expected time of broadcast of the ranging signal. The ranging signal may then be broadcast at the expected time and may include the source identifier. A second message, which be broadcast in the ITS spectrum, may include clock error information for the V-UE. A receiving entity may determine the range to the V-UE based on the time of arrival of the ranging signal and the expected time of transmission, as well as the clock error information. The receiving entity may further generate a position estimate based on the received location information.

    In-motion initialization of accelerometer for accurate vehicle positioning
    29.
    发明授权
    In-motion initialization of accelerometer for accurate vehicle positioning 有权

    公开(公告)号：US11187719B2

    公开(公告)日：2021-11-30

    申请号：US16242135

    申请日：2019-01-08

    Applicant: QUALCOMM Incorporated

    Inventor： Libin Jiang ,  Urs Niesen ,  Jubin Jose

    IPC: G01P21/00 ,  B60K35/00 ,  G01P15/08 ,  G01P15/14

    Abstract: Techniques provided herein are directed toward addressing these and other issues by providing robust means for initializing an accelerometer that can take place even while a vehicle is in motion. Specifically, linear acceleration and velocity data can be estimated from wheel speeds, and angular velocity can be estimated with a gyroscope. The vehicle's acceleration can then be computed from these estimates, and subtracted from a total acceleration measured by the accelerometer to determine gravitational acceleration, which can then be accounted for in subsequent measurements taken by the accelerometer. A vehicle velocity may also be determined based on the vehicle's estimated angular velocity and linear velocity. Embodiments may also employ techniques for translating measurements taken in one coordinate frame to another coordinate frame for estimate determination and/or outlier compensation.

    Repair of carrier-phase cycle slips using displacement data
    30.
    发明授权
    Repair of carrier-phase cycle slips using displacement data 有权

    公开(公告)号：US10330792B2

    公开(公告)日：2019-06-25

    申请号：US15265685

    申请日：2016-09-14

    Applicant: QUALCOMM Incorporated

    Inventor： Urs Niesen ,  Lionel Jacques Garin ,  Jubin Jose

    IPC: G01S19/22 ,  G01S19/29 ,  G01S19/26 ,  G01S19/44 ,  G01S19/00

    Abstract: The disclosure generally relates to position sensors, and more particularly to repair of carrier-phase cycle slips using displacement data. An apparatus for use in position sensing may include a displacement sensor, a positioning signal receiver, a memory, and a processor coupled to the displacement sensor, the positioning signal receiver, and the memory. The processor and memory may be configured to processor and memory are configured to detect a loss of lock of a first carrier tracking loop associated with the first set of carrier-phase measurements, wherein the first carrier tracking loop is associated with a first integer ambiguity, estimate, based on the displacement data, an ambiguity increment to the first integer ambiguity subsequent to the detected loss of lock, and resolve a second integer ambiguity associated with the second set of positioning signals based on the first integer ambiguity and the estimated ambiguity increment.

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