Patent ID: 11968558
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A data transmission method, wherein the method, comprising:
receiving, by a central unit-control plane (CU-CP) of a radio access network (RAN), a data notification message from a central unit-user plane (CU-UP) of the RAN, wherein the data notification message notifies the CU-CP that a data packet of a quality of service (QoS) flow is received for a first time through a default data radio bearer (DRB) and comprises a QoS flow identity (ID) of the QoS flow and a protocol data unit (PDU) session ID identifying a PDU session wherein the PDU session comprises the data of the QoS flow; and
using, by the CU-CP, the data notification message.