UICC Search Timer for Priority Network Switching
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Solution Overview
Problem
Current wireless communication devices with multiple SIMs lack an efficient method to automatically switch back to a preferred service provider after a fallback mechanism selects another provider due to poor signal quality or no network service, leading to user inconvenience and lack of specification for returning to the original provider.
Innovation Solution
A wireless network connection management method that uses a UICC to start a search timer when connected to a non-priority SIM, sending a search command to the device to assess network status and switching to a priority SIM when the priority network's signal strength is stronger, and automatically selecting the best SIM based on current network conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fallback mechanism automatically selects another service provider when the preferred provider provides poor signal quality or no network service, then network connectivity is maintained, but there is no specification on how to return back to the originally preferred service provider
Solution Approach 1:
The system performs preliminary actions by establishing a search timer when falling back to a non-preferred provider. This timer is pre-configured to automatically trigger a search for the preferred provider after a predetermined period, eliminating the need for manual intervention or complex user decisions about when to switch back.
Solution Approach 2:
The system implements feedback by continuously monitoring network signal quality and automatically initiating a search for the preferred provider when the search timer expires. The system receives feedback about the preferred provider's signal strength and automatically switches back when conditions are favorable, creating a closed-loop control mechanism.
2Ease of operation
If the system continuously monitors network status to enable automatic switching back to priority SIM, then seamless connectivity is achieved, but power consumption increases
Solution Approach 1:
Instead of continuous monitoring, the system employs periodic action through a search timer that triggers network status checks at predetermined intervals. This approach maintains the capability for automatic switching while significantly reducing power consumption by keeping the monitoring function dormant between timer expirations.
Solution Approach 2:
The system uses self-service by automatically managing the switching process without requiring continuous user input or complex real-time analysis. The search timer autonomously determines when to initiate a network search, and the system automatically processes the switch when conditions are met, minimizing energy-intensive processing.
Data Source
AI summary
A wireless network connection management method includes at least one universal integrated circuit card (UICC) starting a search timer when utilizing a non-priority subscriber identity module (SIM) to establish a connection with a non-priority wireless network; the at least one UICC sending a search command to a wireless communication device in response to a first condition, wherein the first condition is that the search timer expires; a wireless communication device searching for and obtaining a current network status, and sending a reply message indicating the current network status to the at least one UICC; and in response to that the current network status indicates that a signal strength of a priority wireless network is greater than a specific signal strength, the at least one UICC informing and switching to the priority wireless network, and transmitting an update command to the wireless communication device.