Network-Independent BSF Architecture for Roaming GBA Services
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Solution Overview
Problem
Existing generic bootstrapping architecture (GBA) systems require each network operator to set up their own Bootstrapping Server Function (BSF) and dedicated interfaces, leading to complexity and high costs, especially in cases of roaming UEs, making it cumbersome and inefficient.
Innovation Solution
Implementing a network-independent BSF within a telecommunications roaming hub that provides GBA services to UEs across multiple networks, eliminating the need for operator-specific BSFs and interfaces, and utilizing a roaming hub to communicate with various Home Subscriber Servers (HSS) and Home Location Registers (HLR) for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each network operator sets up their own Bootstrapping Server Function (BSF) and dedicated interfaces, then GBA services can be provided to UEs, but system complexity and setup costs increase significantly
Solution Approach 1:
The patent implements a universal BSF that can serve multiple network operators and UEs from different home networks. This single BSF performs the authentication and key derivation functions that would otherwise require separate operator-specific instances, thereby reducing system complexity while maintaining service availability across different networks.
Solution Approach 2:
The patent introduces a roaming hub as an intermediary component that mediates between UEs from different home networks and the universal BSF. This roaming hub handles the routing and coordination, allowing the BSF to serve multiple operators without requiring direct dedicated interfaces between each operator and the BSF, thus reducing overall system complexity.
2Reliability
If each network operator sets up their own Bootstrapping Server Function (BSF) and dedicated interfaces, then GBA services can be provided to UEs, but setup and maintenance costs increase
Solution Approach 1:
By deploying a single universal BSF that can authenticate UEs from multiple home networks, the patent eliminates the need for each operator to independently provision and maintain their own BSF instances. This significantly reduces setup costs and ongoing maintenance expenses while ensuring GBA services remain available to all UEs.
Solution Approach 2:
The patent consolidates multiple operator-specific BSF functions into a single shared infrastructure. By merging the authentication and key derivation capabilities into one universal BSF, the system reduces redundant setup activities and maintenance overhead that would otherwise be required for multiple separate instances.
3Device complexity
If a network-independent BSF is implemented through a roaming hub, then setup and maintenance are simplified, but communication infrastructure requirements increase
Solution Approach 1:
The roaming hub serves as an intermediary that manages communications between the universal BSF and multiple home networks. While this adds a communication component, it consolidates multiple potential direct connections into a single hub-based architecture, which simplifies the overall communication infrastructure compared to implementing dedicated interfaces between each operator and the BSF.
Data Source
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AI summary
Telecommunications system and method comprising a bootstrapping server function, BSF, within a network domain. A telecommunications roaming hub within a telecommunications network external to the network domain. A first communications interface between the BSF and the telecommunications roaming hub, wherein the BSF is configured to provided generic bootstrapping architecture, GBA, services to one or more user equipment, UE, operating within telecommunications networks external to the network domain.