METHODS AND APPARATUSES FOR ALTERNATIVE DATA OVER NON-ACCESS STRATUM, DONAS, DATA DELIVERY IN A ROAMING SCENARIO

摘要

A method in a core network (110) of a cellular communications system (100) to enable Data over Non-Access Stratum, DoNAS, data delivery in a roaming scenario, the method comprising: sending from the V-SMF to a Home Session Management Function, H-SMF, a Packet Data Unit, PDU, session create request during PDU session establishment for DoNAS data delivery for a User Equipment, UE (112, 900), in a roaming scenario; and receiving a response from the H-SMF. In embodiments of the method the PDU session create request comprises an indication that a control plane can be used for data delivery.