Signalling requirements and protocol at the M2 interface between the transport location management physical entity and the handover decision and control physical entity (Study Group 11)
This Recommendation specifies the protocol for the interface between the transport location management physical entity (TLM-PE) of the network attachment control entity (NACE) and the handover decision and control physical entity (HDC-PE) of the mobility management and control entity (MMCE). M2 interface provides information from the TLM-PE to the HDC-PE to support the security association. This Recommendation supports information flows providing the keying material via the M2 reference point as specified in [ITU-T Y.2018].