Patent ID: 11963131
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A communications apparatus, deployed on a central unit (CU) in a CU-distributed unit (DU) architecture, the apparatus comprising at least one processor, a transceiver coupled with the at least one processor and configured to communicate with another apparatus, and a non-transitory computer-readable storage medium coupled with the at least one processor and configured to store a program including instructions which, when being executed by the at least one processor, cause the at least one processor to:
send a first message to the DU, the first message comprising an identifier (ID) of a first data radio bearer (DRB) on which a bearer type change occurs and indication information indicating that the bearer type change occurs, wherein the bearer type of the first DRB changes between any two of the following bearer types: a master node (MN) terminated mater cell group (MCG) bearer, a MN terminated secondary cell group (SCG) bearer, a MN terminated split bearer, a secondary node (SN) terminated MCG bearer, a SN terminated SCG bearer, and a SN terminated split bearer, wherein the MCG bearer is a data-plane radio bearer that occupies only air interface resources on an MCG side, the SCG bearer is a data-plane radio bearer that occupies only air interface resources on an SCG side, the split bearer is a data-plane radio bearer that occupies air interface resources on the MCG and SCG sides and that is served by the MN and the SN, the MN terminated indicates a packet data convergence protocol (PDCP) entity in the MN, and the SN terminated indicates a PDCP entity in the SN; and
receive a second message sent by the DU, the second message comprising a cell group configuration of a layer 2 (L2) handling.