Multi-SIM Connection Suspension by Service Type
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Solution Overview
Problem
Existing multi-SIM devices face challenges in managing simultaneous connections efficiently, particularly in Dual-SIM Dual-Active mode, where both SIMs can be active but interdependencies in modem operation lead to suboptimal performance during calls and data connections.
Innovation Solution
The implementation of methods and apparatuses that allow for dynamic suspension and resumption of connections in multi-SIM operations, including short and long connection suspensions based on service type, with network-controlled downlink management and optimized signaling for USIMs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If connection suspension is implemented for multi-SIM operation, then service availability and resource management are improved, but device complexity and control plane signaling increase
Solution Approach 1:
The connection suspension mechanism is segmented into different suspension types (short suspension and long suspension) based on service type, allowing differentiated management of SIM connections. The UE determines whether to apply short or long suspension based on the service type indicator received from the network, enabling fine-grained control over connection behavior without requiring complex overall architecture.
Solution Approach 2:
The network performs preliminary action by providing service type indication to the UE before connection suspension is needed. This allows the UE to pre-determine the appropriate suspension type (short or long) based on the service type, avoiding the need for complex real-time decision-making and reducing control plane signaling during actual suspension events.
2Productivity
If dynamic connection switching between SIMs is enabled, then resource management is optimized, but connection reliability and service continuity are affected
Solution Approach 1:
The connection suspension mechanism is made dynamic through the introduction of service type-based suspension types. The UE can dynamically switch between short suspension (for immediate service) and long suspension (for extended service) based on the service type indication, allowing flexible resource management while maintaining connection reliability through appropriate suspension selection.
Solution Approach 2:
The suspension duration parameter is changed based on service type. Instead of using a fixed suspension mechanism, the system varies the suspension parameter (short vs. long suspension) according to the service type indicator, enabling optimized resource management while ensuring connection reliability is maintained through parameter adaptation.
3Adaptability or versatility
If short and long connection suspensions are differentiated by service type, then service specificity is improved, but control plane signaling and processing overhead increase
Solution Approach 1:
The network performs preliminary action by embedding the service type indication in advance communication messages. This allows the UE to determine the appropriate suspension type without requiring additional back-and-forth signaling, reducing control plane overhead while maintaining service type adaptability.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for connection suspension of a SIM. One apparatus includes a processor, a first SIM registered with a first mobile communication network, a second SIM registered with a second mobile communication network, and a transceiver that communicates with the first and second mobile communication networks. The processor receives a communication trigger associated with the first SIM, the communication trigger indicating a service type and determines whether to apply a short connection suspension for the second SIM or a long connection suspension for the second SIM, said determination based on the service type. The processor additionally applies the selected one of the short connection suspension and the long connection suspension for the second SIM.