Integrating BNG into 5G via N3IWF for Broadband Interoperability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G networks lack processes to interoperate with broadband users, particularly those using wireline/fixed-wireless deployments, as they do not have defined mechanisms to support broadband access technologies, limiting access to 5G network functions and services.
Innovation Solution
The integration of a Broadband Network Gateway (BNG) into a 5G network using Service-Based Interfaces (SBIs) and Non-3GPP Interworking Functions (N3IWF), which enables the BNG to act as an access point for subscribers, allowing end-users to connect to 5G network functions by receiving and communicating end-user and access parameters, thereby providing access to 5G NF services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 5G networks implement standard network functions for mobile access, then 5G network functionality is provided, but broadband access technologies lack defined interoperation mechanisms
Solution Approach 1:
The patent introduces a Non-3GPP Interworking Function (N3IWF) as an intermediary component that bridges broadband access networks and 5G core network functions. The N3IWF translates and adapts broadband access protocols to 5G network protocols, enabling interoperability without requiring complex modifications to existing 5G network functions or broadband access equipment.
2Adaptability or versatility
If BNG is integrated into 5G network, then broadband user access is enabled, but additional interworking functions are required
Solution Approach 1:
The N3IWF is designed as a multi-functional component that handles multiple tasks: authentication of broadband users, protocol translation between broadband and 5G standards, session management, and integration with 5G core network functions. This universal approach consolidates what could be multiple separate functions into a single versatile component, reducing overall system complexity.
3Reliability
If standard 5G authentication processes are used, then security is maintained, but broadband users cannot access network functions
Solution Approach 1:
The N3IWF acts as a security intermediary that implements broadband-specific authentication mechanisms while maintaining 5G security standards. It translates broadband authentication requests into 5G-compatible formats, enabling broadband users to access network functions with security levels equivalent to standard 5G users without compromising the security architecture.
Data Source
AI summary
In one embodiment, a method includes configuring a router to act as a BNG and establishing, by the router, a connection between CPE and the BNG. The method also includes receiving, by the router, end-user and access parameters and communicating, by the router, the end-user and access parameters to one or more 5G NFs by interacting with one or more SBIs. The method further includes allowing, by the router, the CPE access to the one or more 5G NFs in response to communicating the end-user and access parameters to the one or more 5G NFs.