Multi-SIM Network Switching Time Window for Service Continuity

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Solution Overview

Problem

Multi-SIM terminals experience issues such as resource waste, signal interference, and service disruptions due to simultaneous network monitoring and switching, leading to performance degradation and operational errors in existing networks.

Innovation Solution

A network switching method and apparatus that configures a target parameter value, including a duration for which a multi-SIM terminal can leave a first network, to minimize impact on ongoing services by allowing controlled switching to a second network based on service requirements and network conflicts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multi-SIM terminals switch between networks without standardized processing modes, then terminals can access multiple networks flexibly, but resource waste and service disruptions occur

Engineering Contradiction:
Improvenetwork switching flexibilityVSAvoidresource waste
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent introduces a time parameter (time window) to control network switching behavior. The base station configures a specific time duration during which the terminal is allowed to leave the first network, transforming the uncontrolled switching into a parameter-controlled process that balances flexibility with resource conservation

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The base station monitors the terminal's network switching behavior and provides feedback through RRC messages to adjust the time window parameter. This closed-loop control ensures that network switching occurs within acceptable resource consumption boundaries while maintaining service quality

Inventive Principle:
Principle #23Feedback

2Area of stationary object

If multi-SIM terminals switch networks frequently, then network coverage is improved, but communication performance deteriorates

Engineering Contradiction:
Improvenetwork coverageVSAvoidcommunication performance
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The base station pre-configures the time window parameter before the terminal performs network switching. This preliminary action allows the terminal to plan its switching behavior in advance, ensuring that coverage expansion does not compromise ongoing communication performance

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The time window parameter is dynamically adjusted based on terminal behavior and network conditions. The base station can modify the allowed departure duration to balance coverage requirements with performance maintenance, making the system adaptive rather than static

Inventive Principle:
Principle #15Dynamics

3Speed

If multi-SIM terminals are allowed to leave the first network without time constraints, then switching speed is improved, but network stability deteriorates

Engineering Contradiction:
Improveswitching speedVSAvoidnetwork stability
Core Design Contradiction:
SpeedVSStability of the object's composition

Solution Approach 1:

By introducing a time window parameter, the patent transforms unrestricted switching into controlled switching. The terminal can switch networks quickly within the allowed time window, maintaining switching speed while the parameter itself ensures network stability by preventing excessive or prolonged departures

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12628060B2Network switching method and apparatus, and storage medium
Publication Date: 2026.05.12 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12628060B2 patent drawing
  • US12628060B2 patent drawing
  • US12628060B2 patent drawing

AI summary

A network switching method includes configuring a target parameter value for a multi-SIM terminal, wherein the target parameter value includes at least a target duration, and the target duration indicates a duration for which the multi-SIM terminal is allowed to leave a first network where the base station is located. The network switching method further includes sending the target parameter value.