Title:
DEVICE AND METHOD FOR HANDLING ALWAYS-ON PDU SESSION IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/066577
Kind Code:
A1
Abstract:
Disclosed is a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). According to various embodiments of the present disclosure, provided is a method for operating an access and mobility management function (AMF) in a wireless communication system, comprising the steps of: receiving, from user equipment (UE), a service request including a list of protocol data unit (PDU) sessions to be activated, or a message about a mobility registration update; checking, on the basis of UE context information about the UE, whether identifiers (IDs) of all always-on PDU sessions are included in the list of PDU sessions to be activated; and, when an omitted always-on PDU session is checked from the list of PDU sessions to be activated, transmitting, to a session management function (SMF), a Nsmf_PDUSession_UpdateSMContext request message for requesting a user plane activation of the omitted always-on PDU session.
Inventors:
KWEON KISUK (KR)
SUH KYUNGJOO (KR)
BAEK YOUNGKYO (KR)
SUH KYUNGJOO (KR)
BAEK YOUNGKYO (KR)
Application Number:
PCT/KR2020/013423
Publication Date:
April 08, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W76/20; H04W76/11; H04W80/10
Foreign References:
| US20190174449A1 | 2019-06-06 | |||
| US20180199398A1 | 2018-07-12 |
Other References:
ANONYMOUS: "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Procedures for the 5G System; Stage 2 (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 23.502, vol. SA WG2, no. V15.5.1, 1 April 2019 (2019-04-01), pages 1 - 354, XP051723246
HUAWEI, HISILICON: "Update procdures related with always-on PDU session for URLLC service", 3GPP DRAFT; S2-1906735 WAS S2-1906523 WAS S2-1905520_TS 23.502 UPDATE PROCDURES RELATED WITH ALWAYS-ON PDU SESSION FOR URLLC SERVICE-V1, vol. SA WG2, 23 May 2019 (2019-05-23), Reno, US, pages 1 - 17, XP051737272
NTT DOCOMO, LG ELECTRONICS, ERICSSON: "Selective deactivation for always-on PDU sessions", 3GPP DRAFT; S2-1812929_1844_502_ALWAYS-ON_PDU SESSIONS_R9, vol. SA WG2, 28 November 2018 (2018-11-28), West Palm Beach, USA, pages 1 - 4, XP051499529
HUAWEI, HISILICON: "Update procdures related with always-on PDU session for URLLC service", 3GPP DRAFT; S2-1906735 WAS S2-1906523 WAS S2-1905520_TS 23.502 UPDATE PROCDURES RELATED WITH ALWAYS-ON PDU SESSION FOR URLLC SERVICE-V1, vol. SA WG2, 23 May 2019 (2019-05-23), Reno, US, pages 1 - 17, XP051737272
NTT DOCOMO, LG ELECTRONICS, ERICSSON: "Selective deactivation for always-on PDU sessions", 3GPP DRAFT; S2-1812929_1844_502_ALWAYS-ON_PDU SESSIONS_R9, vol. SA WG2, 28 November 2018 (2018-11-28), West Palm Beach, USA, pages 1 - 4, XP051499529
Attorney, Agent or Firm:
KWON, Hyuk-Rok et al. (KR)
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