UICC Detector Auto-Configures USB ISO Interface Voltage
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Solution Overview
Problem
Mobile wireless devices face challenges in automatically detecting and configuring with various Universal Integrated Circuit Card (UICC) interfaces, such as ISO 7816-3 and USB, to optimize data transfer rates and accommodate increasing storage needs.
Innovation Solution
A UICC detector within the wireless device automatically determines the supported interface(s) of a UICC card, configuring the UICC port to operate with the highest data rate interface, including power supply voltage adjustments and signal line management to enable seamless operation with USB and ISO 7816-3 interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wireless device supports multiple UICC interfaces (USB and ISO 7816-3), then the adaptability and data transfer rate are improved, but the device complexity increases
Solution Approach 1:
The wireless device automatically detects which UICC interfaces are supported by the inserted card and configures itself accordingly, without requiring user intervention. The detector identifies the interface type and the system self-adjusts its operation mode, making the complexity transparent to the user while maintaining high adaptability.
Solution Approach 2:
The system performs interface detection and configuration before establishing data transfer. By determining the supported interface type in advance, the wireless device prepares the appropriate communication parameters and settings beforehand, enabling seamless operation with either USB or ISO 7816-3 interfaces without runtime complexity.
2Ease of operation
If the wireless device automatically detects and configures UICC interfaces, then the ease of operation is improved, but the detection and measurement complexity increases
Solution Approach 1:
The automatic detection and configuration process is performed by the system itself without requiring user input or manual setup. The detector handles all interface identification and configuration tasks autonomously, improving ease of operation while encapsulating the detection complexity within the system's internal mechanisms.
Data Source
AI summary
A system and method for automatically determining a type of electrical interface used by a Universal Integrated Circuit Card (“UICC”) card. In one embodiment, a wireless device includes a UICC card port, and UICC detector. The UICC detector determines which of a plurality of electrical interfaces are provided by a UICC card coupled to the UICC card port. The UICC detector configures the UICC card port in accordance with a provided electrical interface of the UICC card.