APN Determination for MTC Roaming via eUICC
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Solution Overview
Problem
Current communication systems for machine type communication (MTC)/machine-to-machine (M2M) devices face challenges in managing access point names (APNs) across different networks, leading to high costs and management burdens when subscribers switch MNOs or roam, due to varying naming conventions and frequent network changes.
Innovation Solution
The implementation of an embedded universal integrated circuit card (eUICC) with a hierarchical file structure that stores APN information in a standardized format, allowing MTC applications to efficiently identify and access the correct APN based on service/subservice identifiers, and enabling over-the-air updates for APN configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple dedicated Access Points are used to route M2M data to corresponding servers, then data traffic management is improved, but device complexity and management burden increase
Solution Approach 1:
The patent introduces an APN determination function as an intermediary layer between the M2M application and the access point selection mechanism. This function automatically determines the appropriate APN based on service type, source/destination information, and network conditions, eliminating the need for manual configuration and reducing management complexity while maintaining efficient data routing
Solution Approach 2:
The system implements self-service through automatic APN determination where the network or device autonomously selects appropriate access points without human intervention. The APN determination function automatically queries available APNs, evaluates them based on predefined criteria, and selects the optimal one, enabling the system to manage itself without increasing operational burden
2Adaptability or versatility
If APN information is preconfigured in UEs for multiple MNOs, then network switching capability is improved, but loss of information increases when networks change
Solution Approach 1:
The patent implements dynamic APN determination where the system continuously queries available APNs from the network and selects appropriate ones based on current conditions rather than relying on static preconfigured lists. The APN determination function can adapt to network changes, roaming status, and service requirements in real-time, ensuring information accuracy without requiring extensive preconfiguration
Solution Approach 2:
The system performs preliminary actions by establishing default APN determination rules and criteria before network changes occur. The APN determination function is pre-configured with evaluation criteria and service mappings, enabling it to quickly and accurately determine appropriate APNs when network conditions change, thus preventing information loss during transitions
3Adaptability or versatility
If comprehensive APN lists are stored in mobile equipment for global compatibility, then adaptability to different networks is improved, but device complexity and storage requirements increase
Solution Approach 1:
The patent extracts the comprehensive APN information from the mobile device and relocates it to the network side. Instead of storing extensive APN lists in UE memory, the system queries APN availability from the network dynamically. The APN determination function retrieves only the necessary APN information from network databases, significantly reducing device storage requirements while maintaining global compatibility
Solution Approach 2:
The APN determination function serves multiple purposes: it determines APNs for different service types, evaluates multiple candidate APNs, handles roaming scenarios, and adapts to various network configurations. This multi-functional approach eliminates the need for separate APN lists for different networks, achieving global compatibility through a single intelligent determination mechanism rather than multiple static configurations
Data Source
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AI summary
There is provided a communication device (4) for providing access to a service via an access point (11) in a cellular communication system (1). The communication device (4) includes an application (15) for accessing the service via said point (11). The communication device (4) receives from the application (15) a service identifier for the service and obtains an identifier of an access point (11) via which said service can be accessed by mapping the service identifier to the identifier of an access point (11).