Section: 5.10.3.3 Multicast MRB release
Content: Upon release of a multicast MRB, the UE shall: 1> release the PDCP entity, RLC entity as well as the related MAC and physical layer configuration; 1> if the SDAP entity associated with the corresponding mbs-SessionId has no associated MRB: 2> release the SDAP entity, as specified in TS 37.324[ Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Service Data Adaptation Protocol (SDAP) specification ]  [24] clause 5.1.2; 2> indicate the release of the user plane resources for the mbs-SessionId to upper layers.