Coverage-Based M2M SIM Profiles for Cellular Service Continuity
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Solution Overview
Problem
Existing SIM card provisioning methods for IoT devices require an initial SIM profile to be pre-loaded, leading to wastage of phone numbers and potential system failures due to synchronization issues during porting and replacement, causing blackouts and user experience degradation.
Innovation Solution
Utilizing a Machine to Machine (M2M) SIM card with a bootstrap electronic profile that automatically communicates with a mobile service platform to download a location-specific SIM profile at startup, eliminating the need for an initial SIM profile and reducing synchronization issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an initial SIM profile is pre-loaded on the device, then the device can initially access the network, but phone numbers are wasted and synchronization issues occur during porting and replacement
Solution Approach 1:
The system performs preliminary actions by pre-configuring the device with a bootstrap profile that enables initial network access and automatic profile download capability. The actual SIM profile is downloaded dynamically after device activation, eliminating the need for pre-loading a permanent initial profile. This preliminary bootstrap configuration allows the system to establish connectivity without committing to a specific carrier profile in advance.
Solution Approach 2:
The device performs self-service by automatically downloading and installing the appropriate SIM profile from the carrier's server after activation. The device autonomously completes the profile installation without requiring manual intervention or physical SIM card replacement, thereby eliminating phone number waste associated with initial profiles and avoiding synchronization issues during porting.
2Reliability
If an initial SIM profile is pre-loaded, then the device can initially access the network, but blackouts occur during porting and replacement
Solution Approach 1:
The system performs preliminary actions by pre-configuring the device with a bootstrap profile that enables initial network access and automatic profile download capability. The actual SIM profile is downloaded dynamically after device activation, eliminating the need for pre-loading a permanent initial profile. This preliminary bootstrap configuration allows the system to establish connectivity without committing to a specific carrier profile in advance.
Solution Approach 2:
The device performs self-service by automatically downloading and installing the appropriate SIM profile from the carrier's server after activation. The device autonomously completes the profile installation without requiring manual intervention or physical SIM card replacement, thereby eliminating phone number waste associated with initial profiles and avoiding synchronization issues during porting.
3Loss of substance
If a location-specific SIM profile is dynamically downloaded, then phone number waste is eliminated and service continuity is maintained, but the device complexity increases
Solution Approach 1:
The system introduces an intermediary mobile service platform that mediates between the device and multiple wireless service providers. This platform stores carrier-specific SIM profiles and automatically provides the appropriate profile to the device based on location and carrier compatibility. The intermediary handles the complexity of profile management, synchronization, and carrier-specific configurations, thereby simplifying the overall system architecture while eliminating phone number waste.
Solution Approach 2:
The mobile service platform provides universal functionality by supporting multiple wireless service providers and handling various SIM profile types through a single system. The platform can dynamically select and provide appropriate carrier profiles based on device location and network availability, making the system adaptable to different carriers without requiring separate provisioning systems for each provider.
Data Source
AI summary
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for downloading coverage based subscriber identity module (SIM) profiles. One of the methods includes receiving an order for a location-specific SIM profile for a user account. The method includes determining a coverage area associated with the user account, and determining the location-specific SIM profile for the user account based on the coverage area. The method includes receiving, from a machine to machine (M2M) SIM, a request to activate a mobile device that includes the M2M SIM, wherein the request comprises an identifier of the mobile device corresponding to the user account, and transmitting, to the mobile device, the location-specific SIM profile.