SoC Virtual SIM Integration for IoT Network Flexibility
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Solution Overview
Problem
The current methods for integrating cellular network connectivity into IoT devices are cumbersome, requiring physical SIM cards and complex selection processes, leading to increased costs and logistical challenges for OEMs and MNOs, while also limiting the flexibility of device manufacturers and users in selecting optimal network providers.
Innovation Solution
The implementation of a System-On-Chip (SoC) with integrated reprogrammable virtual SIM card technology, allowing devices to dynamically switch between cellular networks and manage virtual SIM cards remotely, reducing the need for physical SIM cards and simplifying network selection and provisioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical SIM cards are integrated into IoT devices, then cellular network connectivity is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the SIM card functionality directly into the system-on-chip (SoC) by integrating a reprogrammable field-programmable gate array (FPGA) with the application processor. This merging eliminates the need for separate physical SIM cards and their associated complex integration processes, while maintaining reliable cellular network connectivity through the integrated communication modules.
Solution Approach 2:
The reprogrammable FPGA within the SoC provides universal cellular network connectivity that can be configured to support multiple network standards and virtual SIM card profiles. This multi-functional capability replaces the need for device-specific physical SIM cards, reducing manufacturing complexity while ensuring reliable connection across different cellular networks.
2Reliability
If physical SIM cards are used for network selection, then network connectivity is established, but logistical challenges and costs for OEMs and MNOs increase
Solution Approach 1:
The patent implements virtual SIM card profiles that are software-based copies of traditional SIM functionality, stored and managed within the reprogrammable FPGA. These virtual profiles can be remotely provisioned and updated without physical card distribution, eliminating the logistical burden of manufacturing, distributing, and managing physical SIM cards while maintaining reliable network connectivity.
Solution Approach 2:
The patent replaces the mechanical physical SIM card system with a software-based virtual SIM card system implemented in the reprogrammable FPGA. This substitution eliminates the need for physical card handling, insertion, and replacement processes, significantly simplifying manufacturing logistics while ensuring continuous network connectivity.
3Reliability
If physical SIM cards are integrated, then network access is enabled, but flexibility in selecting network providers is limited
Solution Approach 1:
The reprogrammable FPGA allows the SIM card functionality to be dynamically reconfigured at runtime, enabling the device to switch between different virtual SIM card profiles and network providers as needed. This dynamic adaptability provides flexibility in network selection while maintaining reliable connectivity, unlike fixed physical SIM cards.
Solution Approach 2:
The system pre-provisions multiple virtual SIM card profiles within the reprogrammable FPGA, allowing the device to have multiple network access capabilities ready in advance. This preliminary configuration enables flexible network selection without requiring physical SIM card changes, maintaining reliable access across different providers.
4Adaptability or versatility
If virtual SIM card technology is implemented, then flexibility and cost are improved, but integration complexity into SoC increases
Solution Approach 1:
The patent merges the reprogrammable FPGA with the application processor into a single integrated SoC, combining the virtual SIM card functionality with the main processing unit. This integration reduces the overall number of discrete components while maintaining the flexibility of virtual SIM profiles, managing the complexity through unified architecture.
Solution Approach 2:
The reprogrammable FPGA serves multiple functions including virtual SIM card operations, network protocol handling, and application processing support. This multi-functionality consolidates what would otherwise be separate components, reducing integration complexity while preserving network selection flexibility.
Data Source
AI summary
Apparatuses, methods, and systems are provided for configuring a “SIM-less” System-on-Chip (S2oC) with integrated reprogrammable cellular network connectivity. Digitally issued Subscriber Identity Module (SIM) cards may be digitally issued by a remote server and downloaded and managed by the S2oC. A virtual SIM card container may be packaged in the S2oC and hosts an identity manager used by a plurality of applications residing in the multi-core processor of the S2oC. A virtual modem with a custom communication protocol allows the multi-core processor applications to exchange data with the virtual SIM card container.