US 12,120,558 B2
Method for moving PDU session on non-3GPP to 3GPP access
Myungjune Youn, Seoul (KR); and Hyunsook Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/642,899
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 11, 2020, PCT No. PCT/KR2020/012309
§ 371(c)(1), (2) Date Mar. 14, 2022,
PCT Pub. No. WO2021/066346, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 10-2019-0122515 (KR), filed on Oct. 2, 2019.
Prior Publication US 2022/0361054 A1, Nov. 10, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/32 (2009.01); H04W 76/18 (2018.01); H04W 36/14 (2009.01)
CPC H04W 36/0022 (2013.01) [H04W 36/0033 (2013.01); H04W 36/0079 (2018.08); H04W 36/00837 (2018.08); H04W 36/32 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for operating an Access and mobility Management Function (AMF), the method comprising:
receiving, from a Session Management Function (SMF), a Session Management (SM) context status notify message,
wherein the SM context status notify message is received based on a failure of a Protocol Data Unit (PDU) session establishment procedure,
wherein the PDU session establishment procedure is triggered for a handover of a PDU session between a non-3rd Generation Partnership Project (non-3GPP) access and a 3GPP access; and
updating an access type related to the PDU session based on the SM context status notify message.