US 12,341,766 B2
Communication method, terminal device, road side unit, server, system, and medium
Kai Pan, Shanghai (CN); and Jing Chen, Shanghai (CN)
Assigned to Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed by SHENZHEN YINWANG INTELLIGENT TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jun. 16, 2022, as Appl. No. 17/842,388.
Application 17/842,388 is a continuation of application No. PCT/CN2020/128288, filed on Nov. 12, 2020.
Claims priority of application No. 201911310826.7 (CN), filed on Dec. 18, 2019.
Prior Publication US 2022/0311602 A1, Sep. 29, 2022
Int. Cl. H04L 9/40 (2022.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01)
CPC H04L 63/0823 (2013.01) [H04L 9/0825 (2013.01); H04L 9/0872 (2013.01); H04L 9/3263 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A terminal device, comprising at least one processor and at least one memory storing instructions, and the at least one processor is coupled to the at least one memory to execute the instructions to:
receive a trigger instruction at a preset node location of a road section;
in response to receiving the trigger instruction, send certificate request information to a certificate authority (CA) server to request a communication key, wherein the certificate request information comprises identity information of the terminal device;
receive the communication key from the certificate authority (CA) server;
receive encrypted information from a road side unit (RSU), wherein the encrypted information is information encrypted by using the communication key; and
decrypt the encrypted information by using the communication key.