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1. WO2021241905 - EFFICIENT PLMN SELECTION UPON AUTHENTICATION FAILURE FOR EACH NETWORK SLICE IN ROAMING NETWORK

Publication Number WO/2021/241905
Publication Date 02.12.2021
International Application No. PCT/KR2021/005697
International Filing Date 07.05.2021
IPC
H04W 48/18 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction; Network selection; Access point selection
18Selecting a network or a communication service
H04W 48/16 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction; Network selection; Access point selection
16Discovering; Processing access restriction or access information
H04W 8/02 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
8Network data management
02Processing of mobility data, e.g. registration information at HLR or VLR ; Transfer of mobility data, e.g. between HLR, VLR or external networks
CPC
H04W 48/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction
16Discovering, processing access restriction or access information
H04W 48/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction
18Selecting a network or a communication service
H04W 8/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
8Network data management
02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR]
Inventors
  • 김선희 KIM, Sunhee
  • 천성덕 CHUN, Sungduck
  • 김현숙 KIM, Hyunsook
  • 김래영 KIM, Laeyoung
  • 박상민 PARK, Sangmin
  • 윤명준 YOUN, Myungjune
Agents
  • 인비전 특허법인 ENVISION PATENT & LAW FIRM
Priority Data
10-2020-006249625.05.2020KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) EFFICIENT PLMN SELECTION UPON AUTHENTICATION FAILURE FOR EACH NETWORK SLICE IN ROAMING NETWORK
(FR) SÉLECTION EFFICACE DE PLMN LORS D'UNE DÉFAILLANCE D'AUTHENTIFICATION POUR CHAQUE TRANCHE DE RÉSEAU DANS UN RÉSEAU D'ITINÉRANCE
(KO) 로밍 네트워크에서 네트워크 슬라이스 별 인증 실패 시 효율적인 PLMN 선택
Abstract
(EN) Provided are a method and device for efficient public land mobile network (PLMN) selection upon authentication failure for each network slice in a roaming network. A user equipment (UE) receives a registration rejection message from an access and mobility management function (AMF) of a first PLMN. The registration rejection message includes rejected network slice selection assistance information (NSSAI) including first single NSSAI (S-NSSAI) and cause value #62 for the rejected NSSAI. The UE: generates second requested NSSAI including second S-NSSAI on the basis that i) the UE does not have allowed NSSAI and configured NSSAI, and ii) default configured NSSAI includes the second S-NSSAI that is not included in the rejected NSSAI and corresponds to a network slice of which the UE requests registration; and transmits a second registration request message including the second requested NSSAI to the AMF of the first PLMN.
(FR) L'invention concerne un procédé et un dispositif de sélection efficace de réseau mobile terrestre public (PLMN) lors d'une défaillance d'authentification pour chaque tranche de réseau dans un réseau d'itinérance. Un équipement utilisateur (UE) reçoit un message de rejet d'enregistrement d'une fonction de gestion d'accès et de mobilité (AMF) d'un premier PLMN. Le message de rejet d'enregistrement comprend des informations d'aide à la sélection de tranche de réseau (NSSAI) rejetées comprenant des premières informations NSSAI unique (S-NSSAI) et une valeur de cause #62 pour les NSSAI rejetées. L'UE : génère des secondes NSSAI demandées comprenant des secondes S-NSSAI sur la base du fait que ii) l'UE ne dispose pas de NSSAI autorisées et de NSSAI configurées et ii) les NSSAI configurées par défaut comprennent les secondes S-NSSAI qui ne sont pas incluses dans les NSSAI rejetées et correspondent à une tranche de réseau dont l'UE demande l'enregistrement ; et transmet un second message de demande d'enregistrement comprenant les secondes NSSAI demandées à l'AMF du premier PLMN.
(KO) 로밍 네트워크에서 네트워크 슬라이스 별 인증 실패 시 효율적인 PLMN(public land mobile network) 선택을 위한 방법 및 장치가 제공된다. UE(user equipment)는 제1 PLMN(public mobile land network)의 AMF(access and mobility management function)로부터 등록 거절 메시지를 수신한다. 등록 거절 메시지는 제1 S-NSSAI(single network slice selection assistance information)를 포함하는 거절된 NSSAI 및 상기 거절된 NSSAI에 대한 원인 값 #62를 포함한다. i) 상기 UE가 허용된(allowed) NSSAI 및 설정된(configured) NSSAI를 가지고 있지 않고, ii) 기본 설정된(default configured) NSSAI가 상기 거절된 NSSAI에 포함되지 않으며 상기 UE가 등록을 요청하는 네트워크 슬라이스에 대응하는 제2 S-NSSAI를 포함하는 것을 기반으로, UE는 상기 제2 S-NSSAI를 포함하는 제2 요청된 NSSAI를 생성하는 단계, 및 상기 제1 PLMN의 AMF로 상기 제2 요청된 NSSAI를 포함하는 제2 등록 요청 메시지를 전송한다.
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