Patent ID: 11927683
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A V2X communication apparatus of a vehicle, comprising:
a memory storing data;
a communication unit transmitting and receiving radio signals including a V2I message; and
a processor configured to control the memory and the communication unit,
wherein the processor is configured to:
receive, from a road side unit (RSU), a V2I message including absolute position information of the RSU,
receive, from each of a first surrounding vehicle and a second surrounding vehicle, a V2X message including reception time information related to time when the V2I message is received,
obtain, by the current vehicle, a relative position of each of the first surrounding vehicle and the second surrounding vehicle to the current vehicle by using a sensor mounted on the current vehicle,
calculate a relative position of the RSU to the current vehicle, based on the reception time information, time when the current vehicle receives the V2I message, and the relative position of each of the first surrounding vehicle and the second surrounding vehicle to the current vehicle, and
obtain an absolute position of the current vehicle based on the relative position of the RSU to the current vehicle and the absolute position information of the RSU.