Patent ID: 11917462
Assignee: SHARP KABUSHIKI KAISHA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A method of a base station apparatus, the method comprising:
receiving a request for RRC connection re-establishment from an E-UTRA side of a terminal apparatus, wherein
in a case of receiving the request for RRC connection re-establishment,
a release of an NR secondary cell group in Multi-RAT Dual Connectivity (MR-DC) is triggered in a case that NG-RAN E-UTRA-NR Dual Connectivity (NGEN-DC) is configured to the terminal apparatus, and
an RLC entity for each RLC bearer configured in the NR secondary cell group in the MR-DC is released in a case that the release of the NR secondary cell group in the MR-DC is triggered.