公开(公告)号：US11477648B2

公开(公告)日：2022-10-18

申请号：US16611062

申请日：2017-04-21

Applicant: LG Electronics Inc.

Inventor： Soyoung Kim ,  Yongpyo Hong

IPC: H04L9/32 ,  H04W12/08 ,  H04W4/40 ,  H04L9/40 ,  H04W8/00 ,  H04W12/069

Abstract: Disclosed is a data communication method of a V2X communication device. The data communication method of a V2X communication device comprises the steps of: transmitting a device discovery message; receiving, from an external V2X communication device, a discovery response message for the device discovery message; and performing a security authentication authenticating a second authentication token included in the discovery response message.