The MAC SSS defines six functional modules
- 5 in unclassified volume
- MAC-NCS Node Connectivity State, Neighbourhood discovery, link cost topology control …
- MAC-RRC Radio Resource Control, voice, data and signalling channels, management
- MAC-SMG Slot ManaGement, scheduling, PDU transmission/Reception ….
- MAC-MGT supervisor
- 1 in Restricted volume
- MAC-SEC TRANSEC and NETSEC