Patent ID: 11910244
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method for controlling disorder of downlink data, wherein the method comprises:
determining, by a control plane device, to switch from a first user plane device to a second user plane device; and
sending, by the control plane device, indication information to the second user plane device, wherein the indication information indicates to the second user plane device to buffer downlink data received from a session anchor,
wherein a transmission path, before the switch from the first user plane device to the second user plane device, passes through a data network, the session anchor, and the first user plane device, a transmission path after the switch passes through the data network, the session anchor, and the second user plane device, and there is a connection between the first user plane device and the second user plane device, and
wherein the indication information indicates to the second user plane device to send the downlink data from the session anchor after reception, by the second user plane device, of an end marker from the first user plane device via the connection.