Section: 5.3.5.6.4 DRB release
Content: The UE shall: 1> for each drb-Identity value included in the drb-ToReleaseList that is part of the current UE configuration; or 1> for each drb-Identity value that is to be released as the result of full configuration according to 5.3.5.11: 2> release the PDCP entity and the drb-Identity; 2> if SDAP entity associated with this DRB is configured: 3> indicate the release of the DRB to SDAP entity associated with this DRB (TS 37.324[ Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Service Data Adaptation Protocol (SDAP) specification ]  [24], clause 5.3.3); 2> if the DRB is associated with an eps-BearerIdentity: 3> if a new bearer is not added either with NR or E-UTRA with same eps-BearerIdentity: 4> indicate the release of the DRB and the eps-BearerIdentity of the released DRB to upper layers. NOTE 1: The UE does not consider the message as erroneous if the drb-ToReleaseList includes any drb-Identity value that is not part of the current UE configuration. NOTE 2: Whether or not the RLC and MAC entities associated with this PDCP entity are reset or released is determined by the CellGroupConfig.