Patent ID: 11950143
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A method performed by a target base station in a communication system, the method comprising:
receiving, at a central unit-user plane (CU-UP) of the target base station from a central unit-control plane (CU-CP) of the target base station, a bearer context setup request message including configuration information on a data radio bearer (DRB) to setup, the configuration information on the DRB to setup including first information on at least one first quality of service (QoS) flow mapped to the DRB, second information on at least one second QoS flow to be setup for the DRB, and third information indicating a source configuration, wherein the at least one first QoS flow is associated with forwarded data packets sent on the DRB during a handover;
transmitting, at the CU-UP of the target base station to the CU-CP of the target base station, a bearer context setup response message as a response to the bearer context setup request message;
receiving, at the CU-UP of the target base station from a CU-UP of a source base station, the forwarded data packets; and
processing the forwarded data packets over the DRB based on the configuration information on the DRB,
wherein the second information is ignored by the CU-UP of the target base station based on the third information indicating the source configuration.