METHOD FOR MOVING PDU SESSION ON NON-3GPP TO 3GPP ACCESS

WIPO Patent Application WO/2021/066346

A1

In the present specification, provided is an operation method for an access and mobility management function (AMF). The method comprises a step of receiving a session management (SM) context state notification message from a session management function (SMF). The SM context state notification message can be received on the basis of the failure of a protocol data unit (PDU) session establishment procedure. The PDU session establishment procedure can be triggered for a handover of a PDU session between non-3rd generation partnership project (non-3GPP) access and 3GPP access. The method includes a step of updating an access type related to the PDU session on the basis of the SM context state notification message.

YOUN MYUNGJUNE (KR)
KIM HYUNSOOK (KR)

PCT/KR2020/012309

April 08, 2021

September 11, 2020

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LG ELECTRONICS INC (KR)

H04W36/00; H04W36/14; H04W76/18

KR20190020142A	2019-02-27
US20190261260A1	2019-08-22
KR20180137823A	2018-12-28

ZTE: "MA PDU Session Release", 3GPP DRAFT; C4-192126_ATSSS_29502_MA PDU SESSION RELEASE, vol. CT WG4, 2 May 2019 (2019-05-02), Reno, US, pages 1 - 18, XP051706878
NOKIA, NOKIA SHANGHAI BELL, ZTE, HUAWEI: "Insertion of a PSA and UL CL/BP into the data path of a PDU session with an I-SMF", 3GPP DRAFT; C4-193082_29502_R16_INSERTION OF PSA AND UL CL OR BP V2, vol. CT WG4, 16 August 2019 (2019-08-16), Wroclaw, Poland, pages 1 - 24, XP051763942
See also references of EP 4021075A4

ENVISION PATENT & LAW FIRM (KR)

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