C2X communication with reduced data volume
First Claim
Patent Images
1. A communication device for a vehicle for vehicle-to-X communication, said communication device comprising:
- a communication unit for receiving first data transmitted from an adjacent vehicle, the first data containing a first component information item comprised of N data bytes indicating a relative position of the adjacent vehicle; and
a control unit for reconstructing a full information item comprised of M data bytes indicating an absolute position of the adjacent vehicle based on the relative position of the adjacent vehicle indicated in the N data bytes and an absolute position of the vehicle, wherein M>
N, and N is a number set based on at least one of;
transmission property of the communication between the vehicle and the adjacent vehicle, geographical latitude at which the vehicle is located, and maximum transmission range of the communication between the vehicle and the adjacent vehicle.
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Abstract
By reducing the packet size for C2X data transmission, it is possible to increase the transmission range and the number of transmitted data packets per unit time. By way of example, only component information items are transmitted, which can be converted into a full information item by the receiver using supplementary information items that come from a different source. In order to obtain the full information items, it is possible to utilize firstly transmission properties of the radio medium and secondly common information bases as determined by the system.
102 Citations
14 Claims
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1. A communication device for a vehicle for vehicle-to-X communication, said communication device comprising:
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a communication unit for receiving first data transmitted from an adjacent vehicle, the first data containing a first component information item comprised of N data bytes indicating a relative position of the adjacent vehicle; and a control unit for reconstructing a full information item comprised of M data bytes indicating an absolute position of the adjacent vehicle based on the relative position of the adjacent vehicle indicated in the N data bytes and an absolute position of the vehicle, wherein M>
N, and N is a number set based on at least one of;
transmission property of the communication between the vehicle and the adjacent vehicle, geographical latitude at which the vehicle is located, and maximum transmission range of the communication between the vehicle and the adjacent vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for vehicle-to-X communication, said method comprising:
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receiving, by a vehicle communication unit of a vehicle, first data transmitted from an adjacent vehicle, the first data containing a first component information item comprised of N data bytes indicating a relative position of the adjacent vehicle; and reconstructing, by a vehicle control unit of the vehicle, a full information item comprised of M data bytes indicating an absolute position of the adjacent vehicle based on the relative position of the adjacent vehicle indicated in the N data bytes and an absolute position of the vehicle, wherein M>
N, and N is a number set based on at least one of;
transmission property of the communication between the vehicle and the adjacent vehicle, geographical latitude at which the vehicle is located, and maximum transmission range of the communication between the vehicle and the adjacent vehicle.
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14. A non-transitory computer-readable medium which contains a program element which, when it is executed on a processor in a communication device, prompts the communication device to perform the following steps:
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receiving, by a vehicle communication unit of a vehicle, first data transmitted from an adjacent vehicle, the first data containing a first component information item comprised of N data bytes indicating a relative position of the adjacent vehicle; and reconstructing, by a vehicle control unit of the vehicle, a full information item comprised of M data bytes indicating an absolute position of the adjacent vehicle based on the relative position of the adjacent vehicle indicated in the N data bytes and an absolute position of the vehicle, reconstructing, by a vehicle control unit of the vehicle a full information item comprised of M data bytes indicating an absolute position of the adjacent vehicle based on the relative position of the adjacent vehicle indicated in the N data bytes and an absolute position of the vehicle, wherein M>
N, and N is a number set based on at least one of;
transmission property of the communication between the vehicle and the adjacent vehicle, geographical latitude at which the vehicle is located, and maximum transmission range of the communication between the vehicle and the adjacent vehicle.
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Specification