5G Core Network Function Segmentation for Registration Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G systems face challenges in implementing enhanced features and functionalities, particularly in user plane transmission, with limitations in registration management, connection management, and quality of service (QoS) handling across diverse access networks and network slices.
Innovation Solution
The implementation of advanced network functions such as Access and Mobility Management Function (AMF), Session Management Function (SMF), and User Plane Function (UPF) with enhanced functionalities, including registration management, connection management, and QoS handling, supports seamless user plane transmission and network slice management across 5G access networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If advanced network functions (AMF, SMF, UPF) are implemented with enhanced functionalities, then registration management, connection management, and QoS handling are improved, but device complexity and system configuration difficulty increase
Solution Approach 1:
The patent segments the 5G core network into distinct functional units (AMF, SMF, UPF), where each network function handles specific tasks independently. This segmentation allows enhanced functionalities to be implemented in modular fashion, improving reliability of individual functions while managing overall system complexity through clear separation of concerns.
Solution Approach 2:
The patent introduces the N3IWF as an intermediary component that bridges non-3GPP access networks and the 5G core network. This intermediary handles protocol translation and coordination, enabling enhanced connection management and QoS handling without directly increasing the complexity of core network functions themselves.
2Productivity
If advanced network functions with enhanced functionalities are deployed, then user plane transmission efficiency is improved, but ease of operation and network configuration becomes more difficult
Solution Approach 1:
The patent implements universal interface standards and protocols (N1, N2, N3, N4, N9) that enable the same network functions to operate across diverse access networks (3GPP and non-3GPP). This multi-functionality allows efficient user plane transmission to be achieved while maintaining ease of operation through standardized configurations rather than custom implementations for each access type.
Solution Approach 2:
The patent establishes pre-configured network function interactions and standardized procedures for registration, connection management, and QoS handling. These preliminary actions are defined in advance through 3GPP specifications, allowing network elements to operate efficiently without requiring complex real-time configuration or manual intervention during deployment.
3Adaptability or versatility
If support for diverse access networks and network slices is implemented, then adaptability and versatility are improved, but device complexity and system architecture becomes more complex
Solution Approach 1:
The patent implements a universal 5G core network architecture that can serve multiple access network types (3GPP cellular and non-3GPP wireless networks) through standardized interfaces. The N3IWF provides multi-functional capability to handle both 3GPP and non-3GPP access, improving adaptability while managing architectural complexity through interface standardization.
Solution Approach 2:
The patent segments network slice management into dedicated functions within the SMF and UPF, allowing different network slices to be configured and managed independently. This segmentation enables support for diverse access networks and multiple network slices without requiring a completely separate architecture for each, thus improving versatility while controlling system complexity through functional separation.
Data Source
AI summary
A wireless device sends, to a base station of a first network, a registration request. The wireless device receives, from a mobility management function of the first network, a registration accept message indicating that the first network provides underlay support for a second network. The wireless device sends, to the mobility management function of the first network and based on the indication of underlay support, a request to establish a session with the first network.