Dual-SIM Wireless Device Shadow Number Network Routing
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Solution Overview
Problem
Current communication systems are limited by their ability to route calls based on a single network protocol, restricting the availability of networks for call processing and often leading to suboptimal performance due to geographic or network-specific issues, such as GSM networks providing better service in certain areas than CDMA networks.
Innovation Solution
A wireless device and dynamic routing system capable of communicating over multiple cellular networks with different protocols and frequency bands, using a hardware processor to determine signal strengths and switch between networks for optimal connectivity, and a shadow number system for seamless call routing across different service providers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single network protocol is used for call routing, then device complexity is reduced, but network availability and call quality deteriorate due to geographic or network-specific issues
Solution Approach 1:
The wireless device is designed to support multiple network protocols (GSM, CDMA, and other cellular protocols) simultaneously, enabling it to operate across different network types. The device includes multiple SIM card slots and corresponding RF subsystems, allowing it to access both GSM and CDMA networks without requiring separate devices, thereby improving call quality and network availability while managing complexity through integrated multi-protocol support
2Adaptability or versatility
If multiple network protocols are supported, then network availability and call quality improve, but device complexity increases due to multiple SIM cards and RF subsystems
Solution Approach 1:
The patent combines multiple SIM card slots and their associated RF subsystems into a single integrated wireless device. The processor coordinates multiple SIM cards and RF chains to enable seamless switching between GSM and CDMA networks, merging what would traditionally require separate devices into one unified system that supports multiple network protocols simultaneously
Solution Approach 2:
The device implements dynamic network selection and switching capabilities, where the processor automatically selects between GSM and CDMA networks based on signal strength, coverage availability, and call quality metrics. This dynamic adaptation allows the device to optimize network usage in real-time, improving versatility while managing complexity through automated control
3Reliability
If network switching is implemented, then call quality improves by selecting the best available network, but loss of time occurs during network transitions
Solution Approach 1:
The device performs preliminary network assessment and signal strength measurement before initiating calls or during idle periods. By pre-evaluating available GSM and CDMA networks and their signal qualities, the system prepares the optimal network selection in advance, reducing the time required for network switching when actual calls need to be established or transferred
Data Source
AI summary
A wireless device capable of using multiple SIM cards to simultaneously communicate with multiple cellular networks is presented. The wireless device is a dual-SIM dual-data active device that is capable of receiving and transmitting data packets over multiple cellular networks simultaneously or at substantially the same time. The wireless device may include a second set of antennas and internal hardware, including a second model and processor enabling the wireless device to communicate with at least two cellular networks. The wireless device may select a cellular network to perform a task, such as complete a call or download a video based on a difference in signal strength between the two or more cellular networks supported by the wireless device.