Dual SIM Mobile Data Registration Switching for Concurrent Voice and Data
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Solution Overview
Problem
Dual SIM mobile devices often require users to pause or disconnect data transfers when receiving a call, especially when registered with 2G-compatible wireless networks, due to limitations in concurrent voice and data handling.
Innovation Solution
Implementing a method on mobile devices to switch data registrations between 3G and 2G wireless networks, allowing seamless continuation of data transfers during calls by selecting the appropriate registration based on ongoing data transfers and call requests, thereby enabling concurrent voice and data handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Dual SIM device is registered with a 2G-compatible wireless network, then the device can maintain registration on both networks simultaneously, but the device may allow only one data transfer or voice call to be performed at a time
Solution Approach 1:
The system dynamically switches the data transfer registration from the 2G-compatible network to the 3G-compatible network when a voice call is detected on the 2G network. This dynamic adaptation allows the device to maintain concurrent voice and data capabilities by changing the operational state of the registration based on real-time network conditions and service requirements.
Solution Approach 2:
The invention changes the registration parameter from 2G to 3G network when a voice call is active. By modifying the network generation parameter, the system enables packet-switched data transfer capability during circuit-switched voice calls, thereby achieving concurrent voice and data handling without sacrificing 2G network compatibility.
2Ease of operation
If the user pauses the data transfer to handle a call on the 2G-compatible wireless network, then the device can maintain simple operation logic, but the user experience is degraded due to interruption of data stream
Solution Approach 1:
The system performs preliminary detection of voice call status and proactively switches the data transfer registration to the 3G-compatible network before the data transfer is interrupted. This preliminary action prevents the interruption from occurring, allowing the user to handle calls without manually pausing data transfers or experiencing service degradation.
Solution Approach 2:
The device automatically detects when a voice call is active on the 2G network and autonomously switches the data transfer to the 3G network without requiring user intervention. This self-service mechanism eliminates the need for users to manually manage registration switching, thereby maintaining ease of operation while preventing data stream interruptions.
3Reliability
If the device allows data transfer over packet-switched connection concurrently with voice call on 3G-compatible wireless network, then the concurrent voice and data capability is achieved, but the device complexity increases
Solution Approach 1:
The invention makes the 3G-compatible network registration serve multiple functions: it handles both packet-switched data transfers and can support voice calls. By making this single registration multi-functional, the system achieves concurrent voice and data capability without requiring separate complex configurations for different service types, thereby limiting the increase in device complexity.
Data Source
AI summary
A method on a mobile device is described. A first registration of the mobile device is maintained with a first wireless network for a first subscription. A second registration of the mobile device is maintained with a second wireless network for a second subscription. The first registration is concurrent with the second registration. A user data stream is transferred with the second registration. The user data stream is transferred from the second registration to the first registration based on a receipt of a call request.