US 12,349,020 B2
Session management method based on reallocation of PDU session anchor device, and device performing the session management method
Soohwan Lee, Daejeon (KR); Dongmyoung Kim, Sejong-si (KR); and Myung Ki Shin, Daejeon (KR)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Dec. 29, 2023, as Appl. No. 18/400,194.
Application 18/400,194 is a continuation of application No. 17/536,609, filed on Nov. 29, 2021, granted, now 11,895,539.
Application 17/536,609 is a continuation of application No. 16/796,487, filed on Feb. 20, 2020, granted, now 11,190,988, issued on Nov. 30, 2021.
Application 16/796,487 is a continuation of application No. 15/927,582, filed on Mar. 21, 2018, granted, now 10,575,220, issued on Feb. 25, 2020.
Claims priority of application No. 10-2017-0035604 (KR), filed on Mar. 21, 2017; application No. 10-2017-00103670 (KR), filed on Aug. 16, 2017; and application No. 10-2017-0167798 (KR), filed on Dec. 7, 2017.
Prior Publication US 2024/0147310 A1, May 2, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/12 (2009.01); H04L 67/14 (2022.01); H04W 36/00 (2009.01); H04W 80/04 (2009.01); H04L 61/5007 (2022.01); H04L 101/677 (2022.01); H04W 8/28 (2009.01)
CPC H04W 36/12 (2013.01) [H04L 67/14 (2013.01); H04W 36/0019 (2023.05); H04L 61/5007 (2022.05); H04L 2101/677 (2022.05); H04W 8/28 (2013.01); H04W 80/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method to be performed by a session management function (SMF) device in a network, the method comprising:
determining PDU (Protocol Data Unit) session anchor relocation;
transmitting session establishment request to a new PSA (PDU Session Anchor) device;
transmitting a session modification request to an UL_(Uplink) CL_(Classifier)_to update an UL traffic filter according to an UL CL rules regarding a traffic flow;
receiving a session modification response; and
transmitting a session release request with a session ID (identifier) to an existing PSA (PDU Session Anchor) device,
wherein the traffic flow is related to movement from the existing PSA device to the new PSA device.