US 11,671,935 B2
Method for managing registration and session in wireless communication system and apparatus for performing the same
Youngkyo Baek, Seoul (KR); Sunghoon Kim, Seoul (KR); Jungje Son, Yongin-si (KR); and Hoyeon Lee, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Feb. 22, 2021, as Appl. No. 17/181,059.
Application 17/181,059 is a continuation of application No. 15/923,383, filed on Mar. 16, 2018, granted, now 10,932,218, issued on Feb. 23, 2021.
Claims priority of application No. 10-2017-0033343 (KR), filed on Mar. 16, 2017.
Prior Publication US 2021/0176725 A1, Jun. 10, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 60/06 (2009.01); H04W 88/02 (2009.01); H04W 60/00 (2009.01)
CPC H04W 60/06 (2013.01) [H04W 60/005 (2013.01); H04W 88/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of performing access deregistration by an access and mobility management function (AMF) serving a 3rd generation partnership project (3GPP) access and a non-3GPP access, the method comprising:
assigning, to a terminal, a temporary identifier (ID) during a registration procedure over the 3GPP access in a public land mobile network (PLMN), the assigned temporary ID is re-used in a registration procedure over the non-3GPP access for the terminal in the PLMN;
determining to initiate a deregistration procedure over the 3GPP access to deregister the non-3GPP access for the terminal, after the terminal is registered over the 3GPP access and the non-3GPP access; and
transmitting, to a session management function (SMF) based on the determination, a request for releasing a protocol data unit (PDU) session including a non-3GPP access PDU session ID,
wherein all PDU sessions associated with the non-3GPP access are released based on the request.