16.11 Handover procedure from WLAN on S2a to 3GPP access

16.6 Network-initiated bearer modification in WLAN on GTP S2a

16.7 Detach in WLAN on S2a for Multi-connection Mode

16.5 Dedicated bearer activation in WLAN on GTP S2a

16.4 PDN GW initiated Resource Allocation Deactivation in WLAN on S2a

16.2.3 HSS retrieval of information about an UE from the TWAN serving that UE

16.3 Detach and PDN disconnection in WLAN on S2a

16.2.1a Initial Attach in WLAN for Emergency Service on GTP S2a

16.2.2 Initial Attach in WLAN on PMIP S2a

16.2.1 Initial Attach in WLAN on GTP S2a