Multi-SIM Priority Registration in Wireless Terminals
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Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, managing multiple subscriber identity modules (SIMs) within a single terminal poses challenges in ensuring seamless service provision and maintaining quality of service (QoS) due to complexities in registration, priority determination, and traffic management across multiple SIMs.
Innovation Solution
The proposed solution involves an operation method where a first network entity receives registration requests from a terminal for multiple SIMs, performs registration procedures, determines priorities among the registered SIMs, and transmits registration accept messages including priority information. This method supports hybrid standby and dual receiver standby scenarios, allowing for simultaneous registration and communication using multiple SIMs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SIMs are registered in a single terminal, then service coverage and communication flexibility are improved, but system complexity and management difficulty increase
Solution Approach 1:
The patent segments the management of multiple SIMs by introducing a priority-based registration mechanism. Each SIM is assigned a priority level, and the system processes registration requests according to these priorities. This segmentation approach allows the complex multi-SIM management problem to be broken down into manageable priority-based decision units, reducing overall system complexity while maintaining service coverage.
Solution Approach 2:
The patent changes the management parameter from simple binary registration status to a multi-level priority system. By introducing priority levels as a new parameter, the system can differentiate between multiple SIMs and manage them more effectively. This parameter change transforms the complex management challenge into a structured priority-based process.
2Productivity
If priority determination is implemented among multiple SIMs, then traffic management efficiency is improved, but registration procedure complexity increases
Solution Approach 1:
The patent applies preliminary action by determining and assigning priorities to SIMs during the initial registration phase, before actual traffic management begins. This upfront priority assignment simplifies subsequent traffic management operations, as the system no longer needs to make complex real-time decisions about which SIM to prioritize. The complexity is shifted to the initial setup phase rather than ongoing operations.
3Ease of operation
If simultaneous registration of multiple SIMs is supported, then user convenience and service continuity are improved, but resource management complexity increases
Solution Approach 1:
The patent implements self-service by enabling the terminal to autonomously manage multiple SIM registrations based on pre-configured priority rules. The terminal itself performs the registration and priority management without requiring complex external coordination, thereby improving user convenience while containing resource management complexity within the terminal's own control mechanisms.
Data Source
AI summary
An operation method of a first network entity in a wireless communication system, includes: receiving, from a terminal, a registration request message regarding a plurality of subscriber identity modules (SIMs); performing a procedure for registering the plurality of SIMs, based on the registration request message; determining priorities between at least one registered SIM; and transmitting, to the terminal, a registration accept message including information about the priorities.