US 11,743,811 B2
Apparatus and method for managing user plane function in wireless communication system
Hoyeon Lee, Suwon-si (KR); Sangsoo Jeong, Suwon-si (KR); and Varini Gupta, Bangalore (IN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jun. 23, 2021, as Appl. No. 17/304,640.
Claims priority of application No. 202031026470 (IN), filed on Jun. 23, 2020.
Prior Publication US 2021/0400576 A1, Dec. 23, 2021
Int. Cl. H04W 48/18 (2009.01); H04W 8/06 (2009.01); H04W 84/04 (2009.01)
CPC H04W 48/18 (2013.01) [H04W 8/06 (2013.01); H04W 84/042 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method performed, by an access and mobility management function (AMF), in a wireless communication system, the method comprising:
receiving, from a user equipment (UE) with a packet data network (PDN) connection established, a registration request message including a first single-network slice selection assistance information (S-NSSAI) associated with the PDN connection;
determining a second S-NSSAI associated with a packet data unit (PDU) session corresponding to the PDN connection based on the first S-NSSAI; and
transmitting information regarding the second S-NSSAI to a user plane function (UPF) via a session management function (SMF) to request modification of an N4 session.