Method and system for accessing a functionality of a vehicle via a mobile device

    公开(公告)号:US12156093B2

    公开(公告)日:2024-11-26

    申请号:US17644133

    申请日:2021-12-14

    Abstract: Embodiments relate to a method for accessing a functionality of a vehicle via a mobile device. The method includes sending, using a first radio access technology, RAT, a ranging intent message from the mobile device to the vehicle; initiating, by the vehicle and using a second RAT, a ranging session for localizing the mobile device upon receipt of the ranging intent message; and upon initiating the ranging session, sending a ranging response message from the vehicle to the mobile device using the first RAT, the ranging response message indicating whether the mobile device is inside or outside at least one operational localization range of the vehicle.

    Method and arrangement for determining an occupied region of a radio device, and vehicle having such an arrangement

    公开(公告)号:US11493593B2

    公开(公告)日:2022-11-08

    申请号:US17056725

    申请日:2019-04-17

    Abstract: A method for determining an occupied region of a first radio device is provided. According to the method, a signal is transmitted from the first radio device and received by at least two additional radio devices. Based on a propagation time of the signal from the first radio device to the additional radio devices, a surrounding region is determined around each of the additional radio devices in which the first radio device is located. The occupied region of the first radio device is determined based on an overlapping region which results from an overlapping of all surrounding regions. Alternatively, signals can also be transmitted from the additional radio devices and received by the first radio device. The method can be used to determine whether an automobile key having a radio transmitter is located in a vehicle.

    Methods and Apparatuses for Secure Communication Between a First and a Second Communication Partner

    公开(公告)号:US20230319022A1

    公开(公告)日:2023-10-05

    申请号:US18041943

    申请日:2021-06-17

    CPC classification number: H04L63/0435

    Abstract: Methods and apparatuses for secure communication between a first and a second communication partner are provided. The method for secure communication between a first and a second communication partner comprises establishing a communication link between the first and the second communication partner. Further, the method comprises determining one or more session identifiers by one of the first and the second communication partner. The method additionally comprises communicating the one or more session identifiers to the other of the first and the second communication partner. The method comprises determining, for each of the one or more session identifiers, a respective symmetric session key in each of the first and the second communication partner. In addition, the method comprises storing the one or more session identifiers and the corresponding symmetric session keys in each of the first and the second communication partner for one or more subsequent secure communication sessions.

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