Patent ID: 11950313
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed by a user equipment, UE, configured with a E-UTRA-NR dual connectivity, EN-DC, in a wireless communication system, the method comprising:
receiving, from a first network node, an LTE or NR radio resource configuration, RRC, reconfiguration message comprising a master cell group, MCG, to/from secondary cell group, SCG, bearer type change request and an indication to re-establish an MCG and SCG radio link control, RLC, entity for a radio bearer, the indication including one or more operations to be performed on a master node, MN, RLC entity, a secondary node, SN, RLC entity, and a packet data convergence protocol, PDCP, entity at the UE;
identifying to change a bearer type of a configured radio bearer for the UE, based on the received MCG to/from SCG bearer type change request;
performing the one or more operations based on the indication to re-establish the MCG and SCG RLC entity,
wherein the first network node is an E-UTRAN node and is the master node, MN,
wherein a second network node is a New Radio, NR, node and is the secondary node, SN, and
wherein the one or more operations comprise re-establishing a first RLC entity, and then releasing the first RLC entity and establishing a second RLC entity, the first RLC entity being associated with the first network node and the second RLC entity being associated with the second network node.