Embedded eSIM Card Activation Checks to Reduce UE Power Consumption
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Solution Overview
Problem
The power consumption of user equipment (UE) with a pre-installed eSIM card is increased due to maintaining the eSIM in a power-on state after startup, even when it is not activated or does not have an activated profile.
Innovation Solution
A method and apparatus for an embedded eSIM card identification that powers off the eSIM card when it is not activated or does not have an activated profile, reducing power consumption by initiating a power-on state only when necessary, using a first indication to query activation status and obtaining feedback information to determine the eSIM card's activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the eSIM card is maintained in a power-on state after UE startup, then the eSIM card is ready for immediate use, but power consumption of the UE is increased
Solution Approach 1:
The patent implements dynamic power state management for the eSIM card by introducing a query mechanism that checks activation status and controls power state transitions. The modem queries the eSIM card's activation status after initialization and dynamically adjusts the power state based on the query result, transitioning from a static power-on approach to a dynamic on-demand approach.
Solution Approach 2:
The patent employs feedback control by implementing a query mechanism where the modem sends a first indication to the eSIM card to query activation status, receives feedback information containing an activation indicator, and uses this feedback to determine whether to maintain or power off the eSIM card. This closed-loop feedback system enables intelligent power management based on actual card status.
2Productivity
If the eSIM card is powered on continuously, then activation can be performed immediately, but energy is wasted when the card is not activated or has no activated profile
Solution Approach 1:
The patent applies preliminary action by performing an initialization process on the eSIM card during UE startup, which prepares the card for potential activation without fully powering it on. This preliminary initialization allows the card to be ready for activation when needed while avoiding continuous power consumption, striking a balance between readiness and energy efficiency.
Solution Approach 2:
The patent changes the power state parameter of the eSIM card based on activation status. When the eSIM card is not activated or has no activated profile, the power state is changed from ON to OFF, reducing energy consumption. When activation is detected or needed, the power state is changed back to ON, enabling the card to function properly.
Data Source
AI summary
This application is applicable to the field of communications technologies, and provides an embedded subscriber identity module (eSIM) card identification method and a terminal device method. The method includes: after completing an initialization process, driving an eSIM card to be powered on; querying whether an activated profile exists in the eSIM card; and when a query result is that no activated profile exists in the eSIM card, powering off the eSIM card. When the eSIM card is not activated or no activated profile exists in the eSIM card, it indicates that a user does not need to use a related function or service of the eSIM card. In this case, the eSIM card is powered off. When the eSIM card is not activated, it means that no profile exists in the eSIM card.