eNPN Access Configuration for UE Onboarding and IMS Emergency Support

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Solution Overview

Problem

Existing wireless communication technologies face challenges in efficiently implementing Stand-alone Non-Public Networks (SNPNs) by enhancing support for subscription/credentials owned by entities separate from the SNPN, supporting UE onboarding and provisioning, and providing IP multimedia subsystem (IMS) emergency services.

Innovation Solution

The proposed solution involves configuring an enhanced non-public network (eNPN) for a new generation radio access network (NG-RAN) by supporting SNPNs with subscription/credentials from separate entities, enabling UE onboarding and provisioning, and ensuring IMS voice and emergency services through methods such as broadcasting group identifiers, first and second indications, and RRC signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If Stand-alone Non-Public Network (SNPN) is implemented, then network privacy and dedicated service are improved, but support for external subscription/credentials and network access flexibility deteriorate

Engineering Contradiction:
Improvenetwork privacyVSAvoidsupport for external subscription/credentials
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The RAN is enhanced to support multiple network access modes including both SNPN and PNI-NPN. The system can simultaneously handle subscriptions from separate entities and provide dedicated SNPN services, making the network universally applicable to different service requirements without compromising privacy or flexibility

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If SNPN is deployed, then dedicated network control is improved, but UE onboarding and provisioning complexity increases

Engineering Contradiction:
Improvededicated network controlVSAvoidUE onboarding and provisioning
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The RAN acts as an intermediary between the core network and UEs during onboarding and provisioning processes. It provides enhanced signaling capabilities to manage UE registration, authentication, and service provisioning, thereby simplifying the overall complexity while maintaining dedicated network control

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If SNPN is implemented, then network security is improved, but support for IMS emergency services deteriorates

Engineering Contradiction:
Improvenetwork securityVSAvoidsupport for IMS emergency services
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The SNPN is enhanced to support multiple service types including IMS emergency services while maintaining network security. The system can selectively apply security policies for different service types, allowing emergency services to operate with appropriate security levels without compromising overall network security or functionality

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12604367B2Methods, devices, and systems for configuring enhanced non-public network
Publication Date: 2026.04.14 ZTE CORP
  • US12604367B2 patent drawing
  • US12604367B2 patent drawing
  • US12604367B2 patent drawing

AI summary

The present disclosure describes methods, systems, and devices for configuring an enhanced non-public network (eNPN) for a new generation radio access network (NG-RAN). One method includes supporting, by a user equipment (UE), a network access feature by receiving, by the UE, a broadcast message from a RAN, wherein the broadcast message comprises at least one of the following: a group identifier (ID), a first indication, or a second indication. Another method includes supporting, by a UE, an eNPN by receiving, by the UE, an indication in a RRC signaling from a RAN, wherein the indication indicates whether to support at least one of the following for an non-public network: an internet protocol (IP) multimedia subsystem (IMS) voice, or an emergency call (eCall).