Patent ID: 11917450
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A communications method, comprising:
sending, by a master radio access network device, to a core network control plane device a first request message, the first request message comprises an identity of a protocol data unit (PDU) session and an identity of a quality of service (QoS) flow, the first request message requests changing a route of the QoS flow of the PDU session to a secondary access network device;
sending, by the core network control plane device, to a core network user plane device, a second request message, the second request message notifies the core network user plane device to change a route of the QoS flow of the PDU session, the second request message comprises the identity of the PDU session and the identity of the QoS flow;
changing, by the core network user plane device, the route of the QoS flow; and
sending, by the core network user plane device, a first end marker packet to the master radio access network device;
sending, by the master radio access network device, a second end marker packet to the secondary access network device, wherein the second end marker packet instructs the secondary access network device to send, to the core network user plane device, a data packet that is of the QoS flow and that is sent by a terminal to the secondary access network device;
wherein the first end marker packet indicates that the core network user plane device no longer sends a data packet of the QoS flow to the master radio access network device.