Dual Network Terminal Communication with Virtual SIM Management
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Solution Overview
Problem
Current dual network terminals with 2G and 3G dual mode and single standby functionality experience frequent network reselection, high power consumption, call dropping, and network disconnecting due to inadequate coverage and switching policies, leading to poor user experience and confidence in TD-SCDMA networks.
Innovation Solution
A dual network and dual standby terminal using a single SIM card with virtual identity management, allowing seamless communication between 2G and 3G networks by selecting the appropriate network based on service type and signal intensity, and switching data links between 2G and 3G networks as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal uses 2G/3G dual mode handover strategy, then the terminal can access both 2G and 3G networks, but frequent network reselection occurs causing high power consumption and call dropping
Solution Approach 1:
The patent segments the network access function by introducing separate voice call processing modules for 2G and 3G networks. The voice call module determines whether to establish calls on 2G or 3G networks based on signal conditions, while data services can utilize either network. This segmentation prevents frequent switching by dedicating voice services to the more stable 2G network when 3G coverage is inadequate, thereby reducing power consumption from constant network reselection.
2Adaptability or versatility
If the terminal uses 2G/3G dual mode handover strategy, then the terminal can access both 2G and 3G networks, but frequent network reselection occurs causing conversation dropping and network disconnection
Solution Approach 1:
The patent segments network services by type, with voice calls handled by a dedicated voice call module that prefers 2G networks for stability, while data services are handled by a data service module that can utilize either network. This segmentation ensures that voice calls, which require high reliability, are not subjected to frequent network switching, thereby improving call stability and reducing conversation dropping.
Solution Approach 2:
The voice call module performs preliminary assessment of network conditions before establishing voice calls. It evaluates signal strength and network stability in advance, and only selects 3G networks when conditions are favorable. This preliminary action prevents entering unstable 3G networks that would cause call dropping, thereby improving call reliability.
3Adaptability or versatility
If the terminal uses TD-SCDMA/GSM dual mode single standby customized terminal, then the terminal can support China Mobile's three 'No' principle, but the inadequate 3G network coverage causes poor user experience
Solution Approach 1:
The patent implements dynamic network selection where the terminal can flexibly switch between 2G and 3G networks based on real-time signal conditions and service types. The voice call module and data service module independently select networks based on current conditions, allowing the terminal to adapt to inadequate 3G coverage by falling back to 2G networks when necessary. This dynamic adaptation maintains good user experience while supporting dual network functionality.
4Adaptability or versatility
If the terminal uses 2G/3G dual mode handover, then the terminal can access both networks, but the frequent switching causes network stream cutoff and abnormal faults
Solution Approach 1:
The patent segments network access by service type, with the voice call module establishing stable connections on 2G networks for voice services, while the data service module handles data traffic on either network. This segmentation prevents frequent switching of voice connections, eliminating network stream cutoff and abnormal faults in voice communications while maintaining network access flexibility.
Data Source
AI summary
An apparatus for performing communication by a dual network terminal is disclosed. The dual network terminal is a dual network and dual standby terminal, and the apparatus includes a 3G wireless communication subsystem, a 2G wireless communication subsystem and an identity identification module. The 2G wireless communication subsystem is connected with the identity identification module and the 3G wireless communication subsystem respectively, the 3G wireless communication subsystem is connected with the 2G wireless communication subsystem, and the 3G wireless communication subsystem and the 2G wireless communication subsystem include one virtual identity identification card administration module respectively. A method for performing communication by a dual network terminal is further disclosed, including: the 2G wireless communication subsystem reading information in the identity identification card in the identity identification module, storing the information in its own first virtual identity identification card administration module, and communicating with the 2G network by using the information.