Concurrent SIM Profile Downloads via Logical Secure Element Interfaces
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Solution Overview
Problem
Existing approaches to downloading SIM profiles in user equipment (UE) result in a poor user experience due to the serial nature of profile downloads, which can take a significant amount of time, especially when multiple profiles are needed quickly.
Innovation Solution
The UE concurrently downloads multiple available SIM profiles using multiple logical secure element (SE) interfaces (LSIs), allowing for parallel download of profiles and reducing the overall time required to download all available profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If SIM profiles are downloaded serially using existing approaches, then the download process is simple to implement, but the time required to download multiple profiles is excessive
Solution Approach 1:
The patent divides the profile download process into multiple independent parallel channels by utilizing multiple logical secure element (LSE) interfaces. Each LSE interface can download a profile independently simultaneously, transforming a single sequential operation into multiple parallel operations, thereby reducing total download time without significantly increasing system complexity
Solution Approach 2:
The patent introduces a new dimension of parallelism by utilizing multiple logical secure element interfaces that can operate simultaneously. This transforms the download process from a one-dimensional sequential operation to a multi-dimensional parallel operation, enabling concurrent profile downloads across different interface channels
2Adaptability or versatility
If the UE supports connection to multiple different communication networks, then the adaptability of the UE is improved, but the number of SIM profiles required increases
Solution Approach 1:
The patent implements multi-functionality by enabling a single secure element to provide multiple logical secure element interfaces, each capable of storing and managing SIM profiles for different networks. This universal interface structure allows the UE to support multiple communication networks and accumulate profiles efficiently without requiring proportionally more physical storage resources
Data Source
AI summary
A user equipment (UE) concurrently downloads available subscriber identity module (SIM) profiles. The UE identifies a condition wherein one or more SIM profiles is available for download. The UE first identifies the number of available SIM profiles and, in response to identifying multiple available SIM profiles, concurrently downloads at least two of the SIM profiles to the UE. This enables the UE to more quickly use the available SIM profiles to connect to corresponding networks, thereby improving the user experience with the UE.