WO2026133014 - MODULAR NON-ACCESS STRATUM (NAS) HANDOVER
National phase entry is expected:
Publication Number
WO/2026/133014
Publication Date
25.06.2026
International Application No.
PCT/IB2025/062736
International Filing Date
11.12.2025
Title **
[English]
MODULAR NON-ACCESS STRATUM (NAS) HANDOVER
[French]
TRANSFERT DE STRATE DE NON-ACCÈS (NAS) MODULAIRE
Applicants **
NOKIA TECHNOLOGIES OY
Inventors
KHARE, Saurabh
CHANDRAMOULI, Devaki
MAVUREDDI DHANASEKARAN, Ranganathan
SINGH, Shubhranshu
MCGRATH, Martin
Priority Data
202441101448
20.12.2024
IN
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2254 | |
| EPO | Filing, Examination, Granting | 9534 | |
| Japan | Filing, Examination, Granting | 2215 | |
| South Korea | Filing, Examination, Granting | 2200 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,943
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Abstract[English]
A method performed by a user equipment (UE) is provided. The method includes creating a non-access stratum (NAS) connection that is for the UE and that is terminated at a source network function (NF). The method includes receiving, from the source NF, information that indicates a NAS correlation identifier that identifies the NAS connection terminated at the source NF. The method includes receiving a security mode command to trigger a NAS security mode procedure with the target NF in association with a handover of the UE from the source NF to the target NF, the security mode command including the information that indicates the NAS correlation identifier. And the method includes creating, based on the information that indicates the NAS correlation identifier, a new NAS security context for a new NAS connection to be associated with a NAS module and terminated at the target NF.[French]
La présente invention porte sur un procédé exécuté par un équipement utilisateur (UE). Le procédé consiste à créer une connexion de strate de non-accès (NAS) qui est destinée à l'UE et qui est terminée au niveau d'une fonction de réseau (NF) source. Le procédé consiste à recevoir, en provenance de la NF source, des informations qui indiquent un identifiant de corrélation NAS qui identifie la connexion NAS terminée au niveau de la NF source. Le procédé consiste à recevoir une instruction de mode de sécurité pour déclencher une procédure de mode de sécurité NAS avec la NF cible en association avec un transfert de l'UE depuis la NF source vers la NF cible, l'instruction de mode de sécurité comprenant les informations qui indiquent l'identifiant de corrélation NAS. Le procédé consiste à créer, sur la base des informations qui indiquent l'identifiant de corrélation NAS, un nouveau contexte de sécurité NAS pour une nouvelle connexion NAS à associer à un module NAS et terminé au niveau de la NF cible.