Mobile Terminal Network Switching via Server Mediated SIM Provisioning
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Solution Overview
Problem
Mobile terminals face inefficiencies in information transmission when roaming, as they often rely on foreign wireless communication networks that may not be optimally connected, leading to suboptimal transmission efficiency.
Innovation Solution
A method and system where a mobile terminal detects nearby wireless communication networks, acquires a network identifier, and requests SIM card information from a server, allowing it to join the appropriate network using identity and encryption data, thereby bypassing the network that provides the SIM card, improving transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mobile terminal uses the foreign wireless communication network that provides the SIM card, then the terminal can maintain simple connection management, but the information transmission efficiency deteriorates due to suboptimal network connection
Solution Approach 1:
The patent introduces a server as an intermediary component that mediates between the mobile terminal and foreign wireless communication networks. The server receives network identifiers from the terminal, selects appropriate SIM cards, and provides necessary authentication information, thereby enabling efficient network switching without increasing terminal complexity
Solution Approach 2:
The patent implements preliminary action by having the terminal detect and acquire network identifiers before actually connecting to the network. The terminal proactively requests SIM card information from the server in advance, preparing all necessary authentication data before the actual information transmission begins, thus improving transmission efficiency
2Speed
If the mobile terminal relies on foreign wireless communication networks, then the terminal can maintain straightforward network selection, but the data transfer speed deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the terminal detects available networks and sends their identifiers to the server. The server responds with selected SIM card information and authentication data, creating a feedback loop that enables the terminal to automatically select optimal networks and obtain necessary connection parameters without complex manual intervention
3Productivity
If the mobile terminal switches to local wireless communication networks, then the information transmission efficiency improves, but the device complexity increases due to additional network detection and authentication processes
Solution Approach 1:
The server acts as an intermediary that handles complex network detection and authentication processes remotely. The terminal simply sends network identifiers to the server, which then provides pre-processed SIM card information and authentication data, thereby improving transmission efficiency without significantly increasing terminal device complexity
Solution Approach 2:
The patent uses copying by having the terminal acquire network identifiers and request SIM card information from the server rather than directly processing all authentication operations locally. The terminal copies necessary authentication data from the server's response, enabling efficient network switching while keeping the terminal's processing requirements manageable
Data Source
AI summary
A method for transmitting information performed by a terminal is disclosed. The method includes: acquiring a first network identifier of a detected wireless communication network; sending a SIM card information request to a server, the SIM card information request including at least the first network identifier; receiving identity information and encryption data of a first SIM card sent by the server, the first SIM card corresponding to the detected wireless communication network corresponding to the first network identifier included in the SIM card information request; and joining the detected wireless communication network corresponding to the first network identifier using the identity information and encryption data of the first SIM card, and transmitting information through the detected wireless communication network.