Patent ID: 11943306
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An access and mobility management function (AMF) in a communication system, the AMF comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a terminal, a first message for requesting an establishment of a protocol data unit (PDU) session associated with a network slice,
identify whether the network slice is not available, in case that the network slice is not available, select an alternative network slice alternative to the network slice,
select a session management function (SMF) based on the alternative network slice, and

transmit, to the SMF selected based on the alternative network slice, a second message for establishing the PDU session, the second message comprises information on the alternative network slice.