| CPC H04W 76/20 (2018.02) [H04W 12/0433 (2021.01); H04W 36/0069 (2018.08); H04W 36/00698 (2023.05); H04W 76/16 (2018.02); H04W 80/02 (2013.01)] | 6 Claims |

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1. A method performed by a user equipment (UE) comprising an evolved UMTS terrestrial radio access (E-UTRA) radio link control (RLC) entity and a new radio (NR) RLC entity configured with E-UTRA-NR dual connectivity (EN-DC) in a wireless communication system, the method comprising:
identifying information indicating to change a bearer type of a configured radio bearer for the UE, from a master cell group (MCG) RLC entity to a secondary cell group (SCG) RLC entity;
re-establishing the MCG RLC entity and releasing the MCG RLC entity; and
establishing the SCG RLC entity,
wherein the MCG RLC entity is associated with the E-UTRA RLC entity and the SCG RLC entity is associated with the NR RLC entity.
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