US 12,439,461 B2
Method and apparatus for modifying PDU session and always-on PDU session in wireless communication system
Kisuk Kweon, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/758,448
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
PCT Filed Jan. 5, 2021, PCT No. PCT/KR2021/000092
§ 371(c)(1), (2) Date Jul. 6, 2022,
PCT Pub. No. WO2021/141363, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 10-2020-0001666 (KR), filed on Jan. 6, 2020; and application No. 10-2020-0002297 (KR), filed on Jan. 7, 2020.
Prior Publication US 2023/0052869 A1, Feb. 16, 2023
Int. Cl. H04W 76/10 (2018.01); H04W 76/20 (2018.01)
CPC H04W 76/10 (2018.02) [H04W 76/20 (2018.02)] 8 Claims
OG exemplary drawing
 
1. A method of a session management function (SMF) entity in a communication system, comprising:
performing a packet data unit (PDU) session establishment procedure or a first PDU session modification procedure;
identifying that an ultra reliable low latency communication (URLLC) quality of service (QOS) flow established via a second PDU session modification procedure is created in a PDU session, wherein the URLLC QOS flow requires an always-on PDU session; and
transmitting, to a user equipment (UE), a PDU session modification command message for the second PDU session modification procedure, wherein the PDU session modification command message includes an indicator indicating that the PDU session is the always-on PDU session based on identifying that the URLLC QOS flow is created in the PDU session, in case that the indicator has not been transmitted to the UE in the PDU session establishment procedure or the first PDU session modification procedure.