Patent ID: 11877326
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. The method according to claim 1, wherein the UPF of the first terminal device is a second UPF, the UPF of the second terminal device is a third UPF other than the second UPF, and the network device is the third UPF, and the data packet received by the network device carries fourth address information of a connection between the second UPF and the third UPF in the first session connection, and
wherein sending, by the network device, the data packet to the second terminal device through the user plane in the 3GPP network by using the first session connection comprises:
determining, by the network device, fifth address information based on the fourth address information, wherein the fifth address information is address information of a connection between the third UPF and the second terminal device in the first session connection; and
encapsulating the fifth address information in the data packet and sending the data packet to the second terminal device by the network device.