US 12,192,890 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 Aug. 28, 2023, as Appl. No. 18/457,191.
Application 18/457,191 is a continuation of application No. 17/304,640, filed on Jun. 23, 2021, granted, now 11,743,811.
Claims priority of application No. 202031026470 (IN), filed on Jun. 23, 2020.
Prior Publication US 2023/0403644 A1, Dec. 14, 2023
This patent is subject to a terminal disclaimer.
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 first single-network slice selection assistance information (S-NSSAI) associated with the PDN connection;
determining second S-NSSAI associated with a packet data unit (PDU) session corresponding to the PDN connection, based on the first S-NSSAI; and
transmitting the second S-NSSAI to a session management function (SMF), wherein the second S-NSSAI is used for N4 session modification between the SMF and a user plane function (UPF).