Network Credential Migration via Deprovisioning
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Solution Overview
Problem
When cellular network subscribers upgrade their devices, collisions can occur between the old and new devices due to residual network access credentials, leading to missed communications as both devices may attempt to connect to the network, causing inefficiencies and resource wastage.
Innovation Solution
Deprovisioning the network access credential from the old device before migrating it to the new device, ensuring the old device cannot connect to the network and preventing collisions by provisioning a predefined credential that bars connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network access credential is provisioned to both the old device and new device, then the subscriber can use the new device for cellular network access, but collisions occur when both devices attempt to connect to the network causing missed communications
Solution Approach 1:
The system performs deprovisioning of the network access credential from the old device before provisioning it to the new device. This preliminary action ensures that the old device cannot attempt network connections with the migrated credential, preventing collisions while allowing the subscriber to continue using the old device for non-cellular functions
Solution Approach 2:
The network access credential is extracted (deprovisioned) from the old device and transferred to the new device. This extraction eliminates the source of collision (the credential on the old device) while preserving the subscriber's ability to use the old device for other purposes by leaving it in a functional but network-inaccessible state
2Reliability
If the network access credential is removed from the old device before migration, then collisions are prevented, but the old device loses network access capability
Solution Approach 1:
The system segments the device functionality by separating cellular network access (which requires the migrated credential) from other functions (which do not require network access). The old device continues to serve non-cellular purposes while the new device handles cellular communications, creating a functional division that resolves the contradiction
3Productivity
If the credential migration is performed without deprovisioning the old device, then the process is simpler and faster, but network resources are wasted due to collision attempts
Solution Approach 1:
The system applies preliminary anti-action by deprovisioning the credential from the old device before migration completes. This preemptive measure prevents the old device from attempting network connections with the migrated credential, eliminating the harmful effect (collision and resource wastage) before it can occur
Data Source
AI summary
A method for network access credential migration is provided. The method can include deprovisioning a network access credential for a wireless network from a first wireless communication device. The method can further include determining that the network access credential has been successfully deprovisioned from the first wireless communication device. The method can additionally include provisioning the network access credential to the second wireless communication device after the network access credential has been successfully deprovisioned from the first wireless communication device.