Downlink routing of non-access stratum (NAS) modules in a modular nas

The modular NAS architecture optimizes NAS message routing by using UE NAS modules with type-based routing, addressing inefficiencies in existing systems and enabling flexible support for various UE types.

WO2026133021A1PCT designated stage Publication Date: 2026-06-25NOKIA TECHNOLOGIES OY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
NOKIA TECHNOLOGIES OY
Filing Date
2025-12-11
Publication Date
2026-06-25

Smart Images

  • Figure 00000036_0000
    Figure 00000036_0000
  • Figure 00000037_0000
    Figure 00000037_0000
  • Figure 00000037_0001
    Figure 00000037_0001
Patent Text Reader

Abstract

A method performed by a user equipment (UE) is provided. The method includes receiving a non-access stratum (NAS) container for the UE at a UE NAS routing layer. The UE includes UE NAS modules associated with NAS connections terminated at respective network functions in a serving network. The NAS container contains payload information that is ciphered and integrity protected, and routing information that is integrity protected only, and the routing information indicates a NAS type of a respective UE NAS module of the UE NAS modules. The method includes reading the routing information that indicates the NAS type to determine the respective UE NAS module, and routing the NAS container to the respective UE NAS module based on the routing information.
Need to check novelty before this filing date? Find Prior Art