Patent ID: 11864075
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method for communication between a first user equipment (UE) and a second UE, comprising:
when the second UE switches from a second user plane device to a third user plane device, generating, by a control plane device, a first updated session context record, wherein an Internet Protocol (IP) address of the second UE remains unchanged when the second UE switches from the second user plane device to the third user plane device; and
sending, by the control plane device, the first updated session context record to a first user plane device serving the first UE, wherein sending the first updated session context record to the first user plane device causes an identifier of the second user plane device associated with the IP address of the second UE comprised in a first context record on the first user plane device to be updated with an identifier of the third user plane device, wherein the first context record is used for sending, to the third user plane device, a first data packet to the second UE from the first UE.