Smart Data Service Link Switching for Multi-SIM User Equipment

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Solution Overview

Problem

Users with multiple subscriber identity modules (SIMs) in user equipment (UE) face service interruptions and suboptimal data plan utilization due to the need for manual switching between SIMs when network coverage changes, leading to an undesirable user experience and inefficient data service usage.

Innovation Solution

Implementing a method for UE to automatically switch the active data link between multiple SIMs based on link quality and other criteria, using a smart data service link switching (SLS) manager that determines and switches the active link to ensure data service continuity and improve user experience and data plan utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual switching between SIMs is implemented, then users can control data service selection, but service interruptions occur and user experience deteriorates

Engineering Contradiction:
ImproveManual SIM switching controlVSAvoidData service continuity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system enables automatic SIM link switching where the UE autonomously monitors data service parameters and switches between SIM links without user intervention. The UE compares data service parameters from multiple SIMs and automatically selects the optimal link, eliminating manual switching operations while maintaining service continuity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements continuous monitoring of data service parameters including signal strength, data rate, and network status from multiple SIM links. Based on this feedback information, the system dynamically adjusts and switches the active data service link to maintain optimal performance and continuity.

Inventive Principle:
Principle #23Feedback

2Device complexity

If a single default SIM is used for data service, then device complexity is reduced, but data plan utilization efficiency decreases

Engineering Contradiction:
ImproveSIM management simplicityVSAvoidData plan utilization efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system dynamically adjusts the active data service link based on real-time data service parameters. Instead of a static default SIM configuration, the UE continuously evaluates multiple SIMs and switches the active link to optimize data plan utilization while maintaining simple device operation through automated management.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of data service by switching between different SIM links based on monitored parameters such as signal quality, data rate, and network conditions. This allows optimal data plan utilization across multiple SIMs without requiring complex user management of each SIM's parameters.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If automatic link switching is implemented, then data service continuity is improved, but device complexity increases

Engineering Contradiction:
ImproveData service continuityVSAvoidLink switching mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The UE autonomously performs link quality monitoring, parameter comparison, and switching decisions without requiring external control mechanisms. This self-service approach maintains data service continuity through automatic switching while avoiding the complexity of manual intervention interfaces or external control systems.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11432216B2Smart data service link switching among subscriber identity modules
Publication Date: 2022.08.30 QUALCOMM INC
  • US11432216B2 patent drawing
  • US11432216B2 patent drawing
  • US11432216B2 patent drawing

AI summary

Certain aspects of the present disclosure provide techniques for smart data service link switching (SLS) among subscriber identity modules (SIMs). An example method that may be performed by a user equipment (UE) includes communicating data via an active link, wherein the active link comprises a first link of a first data subscriber identity module (SIM) of the UE; determining, based on one or more parameters, to switch the active link to a second link of a second data SIM of the UE; and switching the active link to the second link.