US 11,943,306 B2
Method and device for supporting alternative network slice in wireless communication system
Dongeun Suh, Suwon-si (KR); and Hoyeon Lee, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Oct. 25, 2022, as Appl. No. 18/049,554.
Claims priority of application No. 10-2021-0143829 (KR), filed on Oct. 26, 2021; and application No. 10-2022-0042905 (KR), filed on Apr. 6, 2022.
Prior Publication US 2023/0130966 A1, Apr. 27, 2023
Int. Cl. H04L 67/141 (2022.01)
CPC H04L 67/141 (2013.01) 14 Claims
OG exemplary drawing
 
1. A method performed by an access and mobility management function (AMF) in a communication system, the method comprising:
receiving, from a terminal, a first message for requesting an establishment of a protocol data unit (PDU) session associated with a network slice;
identifying whether the network slice is not available;
in case that the network slice is not available, selecting an alternative network slice alternative to the network slice;
selecting a session management function (SMF) based on the alternative network slice; and
transmitting, 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.