Multi-SIM Wireless Access Management via Dynamic Selection
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Solution Overview
Problem
Conventional multi-SIM wireless communication devices can only access fourth generation networks through a specific SIM, limiting the ability to efficiently manage access to multiple Packet Switched (PS) networks and Internet Protocol Multimedia Subsystem (IMS) services across multiple SIMs.
Innovation Solution
A method and apparatus that obtain data service-related preferences for multiple SIMs, select the appropriate SIMs based on network types provided by operators, and allocate protocol stacks to access PS and IMS networks efficiently, allowing simultaneous access to multiple networks using multiple SIMs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a specific SIM is designated for fourth generation network access, then network access reliability is improved, but SIM utilization efficiency deteriorates
Solution Approach 1:
The patent implements dynamic SIM selection where the system automatically chooses which SIM to use for fourth generation network access based on real-time conditions such as signal strength, network availability, and service requirements. This dynamic approach allows multiple SIMs to share fourth generation network access capability, improving overall SIM utilization while maintaining reliable network connectivity through adaptive decision-making.
2Adaptability or versatility
If multiple SIMs are configured to access fourth generation networks, then SIM versatility is improved, but network management complexity deteriorates
Solution Approach 1:
The patent implements self-service mechanisms where the wireless communication apparatus automatically manages its own SIM selection and network access without requiring manual configuration or user intervention. The system autonomously evaluates network conditions, determines optimal SIM choices, and manages protocol stack allocations, thereby enabling multiple SIMs to access fourth generation networks while keeping management complexity minimal through automated decision-making processes.
3Reliability
If protocol stacks are allocated based on SIM preferences, then service quality is improved, but processing overhead deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-configuring protocol stacks and establishing service quality parameters before actual network access is required. The system pre-evaluates SIM capabilities, pre-allocates appropriate protocol stacks for different network types, and establishes preference hierarchies in advance. This preliminary preparation reduces processing overhead during runtime by eliminating the need for complex real-time decision-making, while still maintaining high service quality through pre-optimized configurations.
Data Source
AI summary
A method of managing access to a plurality of Packet Switched (PS) networks of a wireless communication apparatus including a plurality of Subscriber Identity Modules (SIMs) includes obtaining first information indicating data service-related preferences for the plurality of SIMs, selecting at least one SIM necessary for accessing each of the plurality of PS networks from among the plurality of SIMs, based on the first information and second information indicating a wireless network capable of being provided by an operator corresponding to each of the plurality of SIMs, and accessing each of the plurality of PS networks by using the selected at least one SIM.