# eSIM Technology in IoT Architecture

**Authors:** Hang Yuan, Artiom Baloian, Jan Janak, Henning Schulzrinne  
**arXiv:** [2401.04302](https://arxiv.org/abs/2401.04302)  
**Date:** 2024-01-09  
**Summary page:** https://www.summarizepaper.com/en/arxiv-id/2401.04302v1/

## Key points

- eSIM technology, developed by the GSM Association (GSMA) in 2013, is widely adopted in commercial products like mobile devices
- Engineers need to understand eSIM provisioning architecture and operations for deployment across various industries
- Two key operations of eSIM are Common Mutual Authentication procedure and Profile Downloading procedure
- QR codes provided by operators enable users to download new profiles onto their devices for seamless network switching
- Challenges arise when applying traditional mobile device solutions directly to IoT devices due to differences in user interface functionality and scale of deployment
- IoT devices often lack user-friendly interfaces for direct management, requiring efficient fleet management approaches
- Connectivity issues may occur when IoT devices try to download profiles from service provider servers
- The Subscription Manager Data Preparation (SMDP) component plays a crucial role in streamlining profile management and connectivity for IoT devices

## Summary

The , developed by the GSM Association (GSMA) in 2013, has become widely adopted in commercial products such as mobile devices. However, its application in  is still in its early stages. It is crucial for engineers to understand the architecture and operations of eSIM provisioning to promote its deployment across various industries. In the , two key operations of  are highlighted: the Common Mutual Authentication procedure and the Profile Downloading procedure. The former involves authenticating trusted communication parties over the public internet, while the latter focuses on downloading profiles from operator servers to remotely provision end-user devices. One significant aspect of eSIM technology in IoT is the use of  provided by operators as part of service contracts. These QR codes enable users to locate and download new profiles onto their devices, typically requiring a connection to a public network like Wi-Fi or a Bootstrap Profile. With profiles installed, users can seamlessly switch between different operator networks. However, applying traditional mobile device solutions directly to IoT devices poses challenges due to differences in user interface functionality and scale of deployment. often lack user-friendly interfaces for direct management, making it essential to design efficient approaches for managing fleets of devices. Additionally, connectivity issues may arise for IoT devices when attempting to download profiles from service provider servers. To address these challenges within the eSIM IoT architecture, an additional component known as the  plays a crucial role. This component helps streamline profile management and connectivity for IoT devices, ensuring smooth operation within complex deployment scenarios.