TERMINAL APPARATUS, BASE STATION APPARATUS AND METHOD Russian patent published in 2022 - IPC H04W76/27 

FIELD: communication.

SUBSTANCE: terminal apparatus includes a receiving unit receiving a message about a change in the RRC connection configuration from the base station apparatus and a processing unit, wherein when information is included to indicate the application of full configuration in the message about a change in the RRC connection configuration based on the execution of E-UTRA/5GC or NGEN-DC by the terminal apparatus, it recovers the RLC object, deallocates the PDCP NR object, deallocates the RLC object, deallocates the logical channel and DRB identifier for the DRB, corresponding to each DRB identifier set by the terminal apparatus, and notifies of the SDAP object corresponding to the DRB when the DRB is deallocated.

EFFECT: reduced complexity of processing the protocol data unit and ensured effective communication with the base station apparatus.

12 cl, 10 dwg