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.

Abstract: The invention relates to a method for operating a vehicle. According to forms of the invention, it is envisaged that for starting up the vehicle by means of a mobile electronic device carried by a user, the user will gain access to the vehicle by localizing the mobile electronic device by means of Bluetooth RSSI and by performing a first operating action of the user on the exterior of the vehicle. Starting the drive motor of the vehicle is carried out by a user of the mobile electronic device in the vehicle as a vehicle occupant by performing a second operating action of the user in the interior of the vehicle on the mobile electronic device and/or with the mobile electronic device.

Abstract: An apparatus for a digital vehicle key sharing server includes interface circuitry and processing circuitry. The processing circuitry is configured to obtain, via the interface circuitry, a request for sharing a digital vehicle key for one or more vehicles to a second device from a first device. The processing circuitry is further configured to determine whether the second device specified by the request is a user device or a server. The processing circuitry is also configured to process the request for sharing the digital vehicle key based at least in part on whether the second device specified by the request is a user device or a server.

Abstract: A method for improves a time-of-flight (ToF) calculation between a user terminal and a plurality of transponders. The method includes receiving, from the user terminal, information about a final data distribution at a first transponder of the plurality of transponders. The method also includes, sending, from the first transponder, the information about the final data distribution to a processing unit.

Abstract: A vehicle is disclosed herein including a plurality of antennas for communicating via ultra-wideband (UWB) and a controller for evaluating a UWB signal of a transceiver, which is received by means of the plurality of antennas. The plurality of antennas include a first subset of one or more antennas and a second subset of one or more antennas. The controller is configured to determine a receiving direction of the signal in a first plane based on signal components of the signal received by means of the antennas of the first subset, and determine a receiving direction of the signal in a second plane based on signal components of the signal received by means of the antennas of the second subset, wherein the first plane is aligned perpendicularly to the second plane. The controller is further configured to determine a position of the transceiver relative to the vehicle based on the receiving direction of the signal in the first plane and based on a receiving direction of the signal in the second plane.

Abstract: A control system includes a motor vehicle with a first control apparatus and an infrastructure with a second control apparatus. The control apparatuses are configured to establish a wireless connection to one another and to carry out a bilateral authentication via the connection. The motor vehicle is configured to request a predefined function of the infrastructure via the connection; and the second control apparatus is configured to perform the requested function of the infrastructure if the function is enabled for control by way of the motor vehicle.

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.

Abstract: A method and apparatus are used for a vehicle and for communicating with a personal communications device. The method includes establishing a secured communication link between the vehicle and the personal communications device for a first operation of accessing and/or starting the vehicle. The method further includes reusing the secured communication link for an application of the vehicle additional to the first operation.

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.

Abstract: A computer-implemented method trains a machine learning model. The method includes training the machine learning model on the basis of data representing at least two different vehicle environments. The machine learning model is trained, on the basis of data from a time-of-flight distance measurement of a distance between a key device and a vehicle, to determine a position of the key device relative to the vehicle.

Abstract: A method for a receiver locates an authentication unit of a motor vehicle. The method includes determining environment information relating to the receiver. The method also includes receiving a reception signal from a transmitter. The method further includes determining a relative position of the transmitter with respect to the receiver on the basis of the environment information and the reception signal.

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.

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.

Abstract: The invention relates to a method for determining an occupied region of a first radio device, comprising: —transmitting a signal from the first radio device, —receiving the signal by at least two additional radio devices, —determining, based on a runtime of the signal from the first radio device to the additional radio devices, a surrounding region around each of the additional radio devices in which the first radio device is located, and —determining the occupied region of the first radio device 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.

Abstract: A method and system controls access to an authentication-dependent or authentication-conditional function of a vehicle, via a smart device or smartphone. For the authentication, an authentication feature of the smart device is compared with a stored authentication feature of the device, and authentication is granted if they are identical or sufficiently correspond, the authentication is subjected to an approval process by a user of the smart device, in which it is determined whether the user approves the authentication or not. The authentication and the approval process have at least one channel in a protected region of the smart device and/or are themselves embedded in the protected region, which lies outside a region of the operating system of the applications and/or the apps of the smart device. The function of the device is executed when there is an authentication and an approval.

Abstract: A method for determining a location area of a mobile terminal relative to a vehicle includes generating a set of positions relative to the vehicle, calculating a location probability of the mobile terminal for one position from the set of positions, and assigning one position from the set of positions to a zone from a plurality of zones of the vehicle. The method also includes determining an aggregated location probability of the mobile terminal for the zone from the plurality of zones depending on the positions assigned to the zone. And, if the aggregated location probability of the mobile terminal for the zone exceeds a predefined confidence value, the method further comprises determining the zone as the location area of the mobile terminal.

Abstract: The disclosure relates to distance determining apparatus for determining a distance between an anchor and a tag. The apparatus is configured to select a first frame type or a second frame type for a message that is to be transmitted, to optimize an energy of the first frame type for a secure preamble detection, and to optimize an energy of the second frame type for a data transmission.

Abstract: The disclosure relates to an approximate determination of a distance between a wireless key which is assigned to a motor vehicle and a transceiver arrangement which is disposed in or on the motor vehicle. In the course of a ranging cycle, a first first path relating to a first threshold value and a second first path relating to a higher, second threshold value are calculated. Two distances are estimated on the basis of this dual first path calculation.

Abstract: A method and system controls access to an authentication-dependent or authentication-conditional function of a vehicle, via a smart device or smartphone. For the authentication, an authentication feature of the smart device is compared with a stored authentication feature of the device, and authentication is granted if they are identical or sufficiently correspond, the authentication is subjected to an approval process by a user of the smart device, in which it is determined whether the user approves the authentication or not. The authentication and the approval process have at least one channel in a protected region of the smart device and/or are themselves embedded in the protected region, which lies outside a region of the operating system of the applications and/or the apps of the smart device. The function of the device is executed when there is an authentication and an approval.

Abstract: A method for determining a location area of a mobile terminal relative to a vehicle includes generating a set of positions relative to the vehicle, calculating a location probability of the mobile terminal for one position from the set of positions, and assigning one position from the set of positions to a zone from a plurality of zones of the vehicle. The method also includes determining an aggregated location probability of the mobile terminal for the zone from the plurality of zones depending on the positions assigned to the zone. And, if the aggregated location probability of the mobile terminal for the zone exceeds a predefined confidence value, the method further comprises determining the zone as the location area of the mobile terminal.