Entitlement Service Aggregation Layer for eSIM Transaction Verification
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Solution Overview
Problem
The transition to embedded SIMs (eSIMs) in cellular networks lacks a mechanism for verifying transaction history, leading to difficulties for carriers in tracking network changes and managing integrations with multiple root Subscription Manager Discovery Services (SM-DSes, and there is no global registry mapping devices to carriers, making it hard for carriers to know which devices are on their networks.
Innovation Solution
Implementing a discovery service ledger registry for eSIM provisioning, an entitlement service aggregation layer, and a device registry to provide an immutable and cryptographically verifiable transaction history, simplify carrier architectures by integrating with a single abstraction layer and entitlement service aggregation layer, and maintain device information across manufacturers and carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If eSIMs are used to replace traditional SIM cards, then device integration and network flexibility are improved, but the ability to verify transaction history and track network changes is lost
Solution Approach 1:
The patent introduces an intermediary system consisting of a discovery service ledger registry and an abstraction layer. The ledger registry acts as a mediator that records and verifies all eSIM provisioning transactions, while the abstraction layer mediates between carriers and root SM-DSes, enabling transaction history verification without compromising eSIM flexibility
Solution Approach 2:
The patent creates a cryptographic copy of the transaction history in the ledger registry. This immutable copy records all provisioning events, allowing verification of network changes and device-carrier mappings without interfering with the actual eSIM provisioning process
2Adaptability or versatility
If carriers integrate with multiple root SM-DSes, then service coverage is improved, but system complexity and integration difficulty increase
Solution Approach 1:
The abstraction layer serves as a mediator between carriers and multiple root SM-DSes. Carriers interact with the abstraction layer through standardized interfaces, which then communicates with various root SM-DSes behind the scenes, reducing carrier architecture complexity while maintaining service coverage
Solution Approach 2:
The abstraction layer provides universal functionality by implementing a common interface that works with multiple root SM-DSes. This single component performs multiple functions including translation, routing, and coordination, eliminating the need for carriers to implement separate integration logic for each SM-DS
3Device complexity
If no global registry maps devices to carriers, then system simplicity is maintained, but carrier ability to track devices on their networks is lost
Solution Approach 1:
The discovery service ledger registry creates an immutable copy of device-carrier mapping information. This cryptographic record captures the relationship between device identifiers and carrier identifiers, enabling carriers to track devices on their networks while maintaining system simplicity through decentralized implementation
Data Source
AI summary
Disclosed are various embodiments related to an entitlement service aggregation layer. In one embodiment, a request to enable or disable an entitlement for a device is received from a first system operated by or on behalf of a communication service provider (CSP). The device is identified by a unique device hardware identifier. A manufacturer of the device is identified based at least in part on the unique device hardware identifier. A second system operated by or on behalf of the manufacturer of the device is identified. The request to enable or disable the entitlement is sent to the second system. A result associated with the request is provided to the first system.