Abstract: The disclosed subject matter relates to an Intelligent Transportation System station (ITS-S) for being carried by a Vulnerable Road User (VRU), comprising: a motion sensor for determining VRU motion data indicative of a VRU position, a VRU speed, and a VRU heading; a transmitter for transmitting a VRU message including the determined VRU motion data; a receiver for receiving, concerning a vehicle, vehicle motion data indicative of a vehicle position, a vehicle speed, and a vehicle heading; and a controller for controlling the transmitter; wherein the controller is configured to compare the determined VRU motion data with the received vehicle motion data and, when the result of the comparison meets a predetermined criterion, to suppress the transmitting of said VRU message.

Abstract: The disclosed subject matter relates to an Intelligent Transportation System (ITS) service station, comprising: a receiver configured to receive, from one or more sensors, information on a set of road users perceived by the sensors, wherein said road user information includes, for each road user in the set, a respective geographical position determined by the sensors; a controller connected to the receiver and configured to determine, on the basis of said geographical positions, whether a subset of road users in said set meets a predetermined criterion of mutual proximity; and a transmitter connected to the controller and configured to transmit, when said subset comprises two or more road users, a service message indicative of said subset.

Abstract: An Intelligent Transportation System (ITS) service station is provided that comprises a receiver configured to receive, from each of a set of ITS stations, a status message which includes the geographical position of the ITS station; a controller connected to the receiver and configured to determine, on the basis of the received geographical positions, whether a subset of ITS stations in the set meets a predetermined criterion of mutual proximity; and a transmitter connected to the controller and configured to transmit, when the subset comprises two or more ITS stations, a service message indicative of the subset to the ITS stations of the subset. Aspects may also include an ITS station receiving a service message.

Abstract: The disclosed subject matter relates to an Intelligent Transportation System (ITS) service station, comprising: a receiver configured to receive, from each of a set of ITS stations, a status message which includes the geographical position of the ITS station; a controller connected to the receiver and configured to determine, on the basis of the received geographical positions, whether a subset of ITS stations in said set meets a predetermined criterion of mutual proximity; and a transmitter connected to the controller and configured to transmit, when said subset comprises two or more ITS stations, a service message indicative of the subset to the ITS stations of said subset. The disclosed subject matter further relates to an ITS station receiving a service message.

Abstract: The disclosed subject matter relates to an Intelligent Transportation System station (ITS-S) for being carried by a Vulnerable Road User (VRU), comprising: a motion sensor for determining VRU motion data indicative of a VRU position, a VRU speed, and a VRU heading; a transmitter for transmitting a VRU message including the determined VRU motion data; a receiver for receiving, concerning a vehicle, vehicle motion data indicative of a vehicle position, a vehicle speed, and a vehicle heading; and a controller for controlling the transmitter; wherein the controller is configured to compare the determined VRU motion data with the received vehicle motion data and, when the result of the comparison meets a predetermined criterion, to suppress the transmitting of said VRU message.

Abstract: The disclosed subject matter relates to an Intelligent Transportation System (ITS) service station, comprising: a receiver configured to receive, from one or more sensors, information on a set of road users perceived by the sensors, wherein said road user information includes, for each road user in the set, a respective geographical position determined by the sensors; a controller connected to the receiver and configured to determine, on the basis of said geographical positions, whether a subset of road users in said set meets a predetermined criterion of mutual proximity; and a transmitter connected to the controller and configured to transmit, when said subset comprises two or more road users, a service message indicative of said subset.

Abstract: A device is disclosed for communicating according to a first and a second communication standard, the first standard being a standard using carrier-sense multiple access (CSMA) and the second being an LTE standard, the LTE standard comprising a device-to-device functionality, wherein the device communicates according to the first standard as well as according to the second standard in the same frequency channel, broadcasts a channel reservation message in said frequency channel, the channel reservation message indicating a length for communications according to the second standard such that no communications according to the first standard are performed over said length, and communicates according to the second standard over said length indicated in the channel reservation message. A method for communicating according to a first and a second communication standard is also disclosed.

Abstract: A device is disclosed for communicating according to a first and a second communication standard, the first standard being a standard using carrier-sense multiple access (CSMA) and the second being an LTE standard, the LTE standard comprising a device-to-device functionality, wherein the device communicates according to the first standard as well as according to the second standard in the same frequency channel, broadcasts a channel reservation message in said frequency channel, the channel reservation message indicating a length for communications according to the second standard such that no communications according to the first standard are performed over said length, and communicates according to the second standard over said length indicated in the channel reservation message. A method for communicating according to a first and a second communication standard is also disclosed.

Abstract: System and method for determining the distance between a radio beacon and a vehicle device passing in the radio beacon, in a road toll system. A signal having a known temporal profile is emitted by one of the radio beacon and vehicle device. The signal is captured in the other component during the passing of the device and the temporal profile of the frequency is recorded in relation to the known temporal profile; a modification in the recoded frequency profile exceeding a first threshold value is detected; two distant wave zones in the frequency profile, lying temporally in front of and behind the detected modification are determined, the zones displaying a frequency modification below a second threshold value are searched for; the recorded frequency profile is scaled in such a way that the distant wave zones take the predetermined values; and the distance is determined from the scaled frequency profile.

Abstract: A radio beacon and a method for selective radio communication with a first onboard unit and a second onboard unit, in which a sequence of first data packet is transmitted to the first onboard unit in a first frequency band in accordance with 5.8 GHz DSRC standards, a sequence of second data packet is transmitted or received to/from the second onboard unit in accordance with 5.9 GHz DSRC standards, wherein the transmission of a data packet of the sequence of first data packet is delayed by the duration of the second data packet if the second data packet appears in the second frequency band.

Abstract: The invention relates to a method for determining the distance between a radio beacon and a vehicle device passing in front of said radio beacon, in a road toll system. A signal of a frequency having a known temporal profile is emitted. Said method consists of the following steps: the signal is captured in the other component when passing and the temporal profile of the frequency is recorded in relation to the known temporal profile; a modification in the recorded frequency profile exceeding a first threshold value is detected; two distant wave zones in the frequency profile, lying temporally in front of and behind the detected modification, which displays a frequency modification below a second threshold value, are searched for; the recorded frequency profile is scaled in such a manner that the distance wave zones take the predetermined values; and said distance “a” from the scaled frequency path is determined.

Abstract: System and method for determining the distance between a radio beacon and a vehicle device passing in the radio beacon, in a road toll system. A signal having a known temporal profile is emitted by one of the radio beacon and vehicle device. The signal is captured in the other component during the passing of the device and the temporal profile of the frequency is recorded in relation to the known temporal profile; a modification in the recoded frequency profile exceeding a first threshold value is detected; two distant wave zones in the frequency profile, lying temporally in front of and behind the detected modification are determined, the zones displaying a frequency modification below a second threshold value are searched for; the recorded frequency profile is scaled in such a way that the distant wave zones take the predetermined values; and the distance is determined from the scaled frequency profile.

Abstract: A radio beacon and a method for selective radio communication with a first onboard unit and a second onboard unit, in which a sequence of first data packet is transmitted to the first onboard unit in a first frequency band in accordance with 5.8 GHz DSRC standards, a sequence of second data packet is transmitted or received to/from the second onboard unit in accordance with 5.9 GHz DSRC standards, wherein the transmission of a data packet of the sequence of first data packet is delayed by the duration of the second data packet if the second data packet appears in the second frequency band.

Abstract: The invention relates to a method for determining the distance between a radio beacon and a vehicle device passing in front of said radio beacon, in a road toll system. A signal of a frequency having a known temporal profile is emitted. Said method consists of the following steps: the signal is captured in the other component when passing and the temporal profile of the frequency is recorded in relation to the known temporal profile; a modification in the recorded frequency profile exceeding a first threshold value is detected; two distant wave zones in the frequency profile, lying temporally in front of and behind the detected modification, which displays a frequency modification below a second threshold value, are searched for; the recorded frequency profile is scaled in such a manner that the distance wave zones take the predetermined values; and said distance “a” from the scaled frequency path is determined.