Multi-SIM Communication Apparatus Network Handoff
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Solution Overview
Problem
Current wireless communication technologies face limitations in increasing communication capability, particularly in handling apparatus terminated or originated communication requests across different wireless networks, which affects the efficiency and reliability of wireless communication services.
Innovation Solution
A communication apparatus is designed with multiple subscriber identity cards and radio transceiver modules that allow for simultaneous access to multiple wireless networks, enabling the processor to manage communication requests by activating call forwarding services to transfer incoming requests between networks based on signal quality and power conditions, thereby enhancing communication capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a communication apparatus uses multiple subscriber identity cards to access multiple wireless networks simultaneously, then the communication capability and service reliability are improved, but the device complexity and power consumption increase
Solution Approach 1:
The patent combines multiple subscriber identity cards (SIM cards) into a single communication apparatus, allowing the device to access multiple wireless networks simultaneously. This merging approach enables the apparatus to maintain multiple communication identities and networks within one device structure, improving communication capability while managing complexity through integrated design
Solution Approach 2:
The communication apparatus is designed with multi-functionality to handle both apparatus-terminated and apparatus-originated communication requests across different wireless networks. The device can switch between networks and handle various communication modes (receiving and initiating calls) using different SIM cards, making it a universal communication platform
2Reliability
If the communication apparatus monitors signal quality and activates call forwarding services to manage communication requests, then the service reliability is improved, but the use of energy increases
Solution Approach 1:
The patent implements feedback mechanisms by continuously monitoring signal quality of the second wireless network. Based on this feedback, the processor automatically activates or deactivates call forwarding services. When signal quality deteriorates below a threshold, the system triggers call forwarding to transfer incoming calls to the first wireless network, ensuring reliable communication while managing power consumption through conditional activation
Solution Approach 2:
The system performs preliminary actions by pre-configuring call forwarding services and monitoring signal quality in advance. When the second SIM card's network signal deteriorates, the call forwarding is already activated to prevent call loss. This preliminary preparation ensures service reliability without continuous high-power operation, as the system only actively manages call routing when needed
Data Source
AI summary
A communication apparatus has at least one radio transceiver module, a first subscriber identity card with a first address and a second subscriber identity card with a second address. The first subscriber identity card camps on a first cell belonging to a first wireless network via the radio transceiver module, and the second subscriber identity card camps on a second cell belonging to a second wireless network via the radio transceiver module. The communication apparatus includes first processor logic coupled to the radio transceiver module, the first subscriber identity card and the second subscriber identity card, receiving a communication request requesting for establishing wireless communication between the first subscriber identity card and a peer communication entity.