Global SIM Module for Seamless Roaming Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Travelers face high roaming costs and inconvenience when using wireless devices abroad, as they often need to manage multiple SIM cards and arrange special services, which can be cumbersome and require swapping cards, leading to potential loss and disruption in receiving calls or messages.
Innovation Solution
A wireless device with a software application that allows users to select local service providers and plans in foreign areas, writing necessary data to a global SIM module, which can store multiple country profiles, enabling seamless switching between home and foreign SIM data for cost-effective and convenient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If users purchase local SIM cards for each country they visit, then they can avoid roaming charges and use local service, but they must manage multiple SIM cards, swap them manually, and risk losing their home service SIM card
Solution Approach 1:
The patent combines multiple SIM card functionalities into a single dual-SIM device. The user keeps both their home service SIM and foreign SIM cards simultaneously in one device, eliminating the need to manually swap SIM cards while traveling. This merging approach resolves the contradiction by maintaining ease of operation (single device management) while avoiding roaming charges (through foreign SIM usage).
Solution Approach 2:
The dual-SIM device provides multi-functionality by supporting both home and foreign service providers simultaneously. The device can switch between different SIM cards for different functions (receiving calls on home SIM, using local service on foreign SIM), making a single device universal for multiple service needs and eliminating the need to manage separate devices or risk losing SIM cards.
2Object-affected harmful factors
If users remove their home service SIM card to use a foreign SIM card, then they can avoid roaming fees, but they become unable to receive phone calls or messages from others trying to reach them at their home service phone number
Solution Approach 1:
The dual-SIM device merges the functionality of both home and foreign SIM cards into one device, allowing simultaneous maintenance of both service subscriptions. Users can keep their home service SIM active for receiving important calls and messages while also having access to foreign SIM for local service, thus maintaining reliability of communication channels without incurring roaming fees.
Solution Approach 2:
The device dynamically switches between different SIM cards based on operational needs. Users can configure the device to use the home SIM for receiving calls and messages while using the foreign SIM for outgoing calls and data, or switch between them as needed. This dynamic capability ensures reliable communication reception while avoiding roaming fees.
3Ease of operation
If users use dual-SIM phones with switching algorithms, then they can manage both home and foreign SIM cards, but they still have to track and manage multiple SIM cards, especially when traveling to various countries during the same trip
Solution Approach 1:
The dual-SIM device provides self-service capabilities through automated switching algorithms and service management systems. The device automatically determines which SIM card to use based on pre-configured rules, current location, and service needs, eliminating the need for users to manually track and switch SIM cards. This self-service approach reduces time loss while maintaining ease of operation for managing both home and foreign SIM cards.
Data Source
AI summary
When a wireless device is outside of its home service area, the device typically has to use expensive roaming data or phone services. However, as herein described, a global SIM may be inbuilt into a device, plugged into a second SIM port of the device, or may be added onto a device through one of the existing ports of the device. The global SIM allows the user to register for a service plan with a local service provider when in a foreign country. A software application on the wireless device can control the selection and purchase of local service plans, as well as control the switching of SIM data to ensure that a local SIM is used when traveling. The global SIM is capable of storing multiple registered service plans and the necessary data for the wireless device to operate as a local device when outside of the home service area.