Patent ID: 11877355
Assignee: INTEL CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A method to be performed at an apparatus of an access and mobility management function (AMF) configured to provide mobile originated (MO) data transport in a communication network, the method comprising:
processing a non-access stratum (NAS) message from a user equipment (UE), the NAS message comprising a protocol data unit (PDU) session identifier (ID) and uplink data;
checking integrity of and decrypt the NAS message comprising the PDU session ID and the uplink data;
determining, based on the PDU session ID, a session management function (SMF);
routing the PDU session ID and the uplink data to the SMF for forwarding to a function in the communication network;
generating a downlink NAS transport message to communicate to the UE, the downlink NAS transport message comprising the PDU session ID and downlink data provided from the function in the communication network through the SMF; and
determining port numbers in a header of the NAS message from the UE to identify an application on an originator and an application on a receiver of the NAS message from the UE.