SIM Reuse Conversion Node for Legacy RAT Network Migration
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Solution Overview
Problem
Legacy cellular devices configured for a first radio access technology (RAT) face replacement challenges when legacy networks are shut down, as upgrading or replacing them with newer RATs is costly and logistically complex, and existing solutions require additional accounts or subscriptions.
Innovation Solution
A conversion node reuses subscriber identity module (SIM) information from legacy devices to seamlessly transition them to a newer RAT, such as 4G LTE or 5G, without requiring new accounts, by swapping radio access accounts and using an embedded SIM (eSIM) to facilitate communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If legacy devices are replaced or modified to connect with newer RAT networks, then network compatibility is improved, but cost and logistical complexity increase significantly
Solution Approach 1:
The patent introduces a conversion node as an intermediary device that sits between the legacy wireless device and the newer RAT network. This conversion node performs protocol conversion and translation, allowing the legacy device to communicate with the newer network without modifying the legacy device itself. The conversion node handles the complexity of adaptation, preserving the simplicity of the original device while achieving network compatibility.
Solution Approach 2:
The solution segments the adaptation function from the legacy device by introducing a separate conversion node. This segmentation allows the legacy device to remain unchanged while the conversion node handles all the complexity of protocol translation and network adaptation. The system is divided into distinct functional components: the legacy device, the conversion node, and the newer RAT network.
2Adaptability or versatility
If legacy devices are replaced or modified to connect with newer RAT networks, then network compatibility is improved, but cost increases significantly
Solution Approach 1:
The conversion node serves as a cost-effective intermediary that avoids the need to replace expensive legacy devices. By inserting a conversion node between the legacy device and the newer network, the solution achieves network compatibility while preserving the existing legacy device investment, thereby reducing overall system cost.
Solution Approach 2:
The conversion node creates a virtual representation or copy of the legacy device's interface on the newer RAT network side. This allows the legacy device to operate as if it were directly connected to a legacy network, while the conversion node handles all interactions with the newer network infrastructure, avoiding the need to physically modify or replace the legacy device.
3Ease of operation
If SIM information is reused for RAT conversion, then customer effort and logistical challenges are reduced, but security and authentication complexity increase
Solution Approach 1:
The conversion node is configured to automatically retrieve and reuse the existing SIM information from the legacy device for authentication with the newer RAT network. This self-service approach eliminates the need for customers to manually reconfigure devices or obtain new SIM cards, as the conversion node autonomously handles the authentication process using the existing SIM credentials.
Solution Approach 2:
The SIM information is made universal across different RAT types by having the conversion node reuse the same authentication credentials for both legacy and newer networks. This multi-functionality of the SIM information allows a single SIM card to work across multiple generations of network technology, simplifying the customer experience while the conversion node manages the technical complexities of cross-RAT authentication.
Data Source
AI summary
Conversion node apparatuses, methods, and systems are disclosed. According to various embodiments, a conversion node is configured to communicate with a premises security system. The premises security system includes a subscriber identity module (SIM) associated with a first subscriber profile. The conversion node includes an embedded subscriber identity module (eSIM) associated with a second subscriber profile. The method includes provisioning a first communication link with the premises security system, receiving the first subscriber profile via the first communication link, modifying the second subscriber profile associated with in the eSIM based at least on the received first subscriber profile, provisioning a second communication link with a cellular network based on the modified second subscriber profile, and communicating, via the provisioned second communication link, data associated with the premises security system to the cellular network.