Method and arrangement for communicating between vehicles

An arrangement for transferring information between a vehicle and a transmitter separate from the vehicle, comprising:

• an antenna mounted on the vehicle and capable of transmitting and receiving radar waves;
• a position determining device for determining the position of the vehicle;
• and
• a processor coupled to said antenna and said position determining device for directing the transmission of encoded noise signals from said antenna including information about the position of the vehicle and identification of the vehicle,
• said processor being arranged to derive encoded noise signals using a code based on the position of the vehicle.

An arrangement for transferring information between a vehicle and a transmitter, comprising:

• an antenna mourned on the vehicle and capable of transmitting and receiving radio frequency waves;
• a position determining device for determining the position of the vehicle;
• and
• a processor coupled to said antenna and said position determining device for directing the transmission of encoded noise signals from said antenna including information about the position of the vehicle and identification of the vehicle,
• said processor being arranged to derive encoded noise signals by phase modulation of distance or time between code transmissions, phase or amplitude modulation of the code sequences, changes of the polarity of the entire code sequence or the individual code segments, or bandwidth modulation of the code sequence.

An arrangement for transferring information between a vehicle and a transmitter, comprising:

• an antenna mounted on the vehicle and capable of transmitting and receiving radio frequency waves;
• a position determining device for determining the position of the vehicle;
• a processor coupled to said antenna and said position determining device for directing the transmission of encoded noise signals from said antenna including information about the position of the vehicle and identification of the vehicle, and
• a velocity determining device arranged in the vehicle for determining the velocity of the vehicle, said processor being coupled to said velocity determining device for encoding noise signals including information about the velocity of the vehicle.

An arrangement for transferring information between a vehicle and a transmitter, comprising:

• an antenna mounted on the vehicle and capable of transmitting and receiving radio frequency waves;
• a position determining device for determining the position of the vehicle;
• and
• a processor coupled to said antenna and said position determining device for directing the transmission of encoded noise signals from said antenna including information about the position of the vehicle and identification of the vehicle,
• said processor being arranged to analyze noise signals received by said antenna in order to determine whether any received noise signals originate from transmitters within a pre-determined distance from the vehicle.

An arrangement for transferring information between a vehicle and a transmitter, comprising:

• an antenna mounted on the vehicle and capable of transmitting and receiving radar waves;
• a position determining device for determining the position of the vehicle;
• and
• a processor coupled to said antenna and said position determining device for directing the transmission of encoded noise signals from said antenna including information about the position of the vehicle obtained from said position determining device and the identification of the vehicle,
• said processor being arranged to derive encoded noise signals by modulation of a code sequence of the encoded information.