Mobile Communication Device Automatic SIM Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dual SIM telephones require manual selection of SIM cards for outgoing calls, leading to longer call preparation times and inefficiency, and existing solutions for automatic selection are either inaccurate due to number portability or resource-intensive, focusing solely on cost without considering network coverage.
Innovation Solution
A communication device that retrieves the mobile network operator information of the called number during call setup from connection messages, allowing for automatic SIM card selection based on user-defined criteria, including signal quality and operator preferences, without relying on large databases or dedicated connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual SIM card selection is implemented, then device complexity is reduced, but call preparation time increases and ease of operation deteriorates
Solution Approach 1:
The system performs automatic SIM card selection without requiring manual user intervention. The selection process is handled autonomously by the communication device based on pre-stored operator information and user-defined criteria, eliminating the need for users to manually choose SIM cards while reducing call preparation time.
Solution Approach 2:
Operator information for multiple network operators is pre-stored in the communication device before calls are made. This preliminary storage of data enables the system to automatically select the appropriate SIM card based on pre-existing information, avoiding real-time manual selection and improving operational ease.
2Ease of operation
If automatic SIM card selection based on cost is implemented, then ease of operation is improved, but measurement precision deteriorates due to number portability
Solution Approach 1:
The system receives feedback about the actual network operator from the network itself during call setup procedures. This feedback mechanism allows the device to update its stored operator information with accurate, real-time data about the called number's operator, enabling precise SIM card selection that accounts for number portability changes.
Solution Approach 2:
The operator information storage is made dynamic rather than static. The system continuously updates the stored operator information based on actual network interactions and feedback, allowing it to adapt to changes such as number portability while maintaining accurate and up-to-date operator associations.
3Measurement precision
If remote server database updating is implemented, then measurement precision is improved, but loss of energy and device complexity increase
Solution Approach 1:
The system extracts and stores only the necessary operator information locally in the communication device rather than maintaining a complete remote database. This extraction approach reduces the amount of data that needs to be transmitted and processed, thereby reducing energy consumption while still providing accurate operator identification.
Solution Approach 2:
The communication device acts as an intermediary between the user and the network. It stores operator information locally and uses network feedback during call setup to update this local storage, eliminating the need for direct connections to large remote databases and reducing energy consumption associated with such connections.
4Ease of operation
If cost-based SIM selection is implemented, then ease of operation is improved, but reliability deteriorates due to lack of network coverage consideration
Solution Approach 1:
The system allows users to define different selection criteria for different scenarios, such as prioritizing cost for certain operators or prioritizing network coverage for others. This local quality approach enables tailored selection behavior that considers both cost and reliability factors depending on the specific calling situation and user preferences.
Solution Approach 2:
The selection criteria can be dynamically adjusted based on various parameters such as operator type, network coverage conditions, and user preferences. The system can change the weighting of different factors (cost vs. coverage) based on the specific context, allowing users to prioritize reliability when needed while maintaining ease of operation through automatic selection.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a device for receiving and transmitting information in a mobile communication network. The device comprises means for making a voice call to a telephone number, a memory area for storing said telephone number and at least one identifier of the mobile network operator to which said telephone number belongs. The device further comprises means for retrieving said identifier through the mobile communication network. The latter means extract the network operator identifier of the called number from a message sent automatically when setting up said voice call. The invention also relates to a communication method for a mobile communication network.