Patent ID: 11877251
Assignee: SHENZHEN AI-LINK CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The method according to claim 1, wherein before the sending, by a terminal, a target protocol data unit PDU session establishment request to a session management function SMF according to a routing policy, the method further comprises:
sending, by the terminal, a registration request to an access and mobility management function AMF, wherein the registration request comprises an identifier of the terminal, and the registration request is configured to request the AMF to send a control policy request to the policy control function PCF; and
receiving, by the terminal, a reply message sent by the AMF according to the registration request, wherein the reply message comprises the routing policy corresponding to the terminal, and the routing policy comprises the target virtual dedicated link identifier configured to indicate a target virtual dedicated link corresponding to the terminal, the target virtual dedicated link is configured to transmit the time synchronization message, and the target virtual dedicated link corresponding to the terminal is determined by the PCF according to the identifier of the terminal.