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

Claim 2:
3. 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 second UPF, and the data packet received by the network device carries third address information of a connection between the first terminal device and the second 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, fourth address information based on the third address information, wherein the fourth address information is address information of a connection between the second UPF and the third UPF in the first session connection; and
encapsulating the fourth address information in the data packet and sending the data packet to the second terminal device through the third UPF by the network device.