NFC Mobile Terminal Configuration by Geographic Position
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Solution Overview
Problem
Mobile terminals with near-field communication (NFC) devices often face interoperability issues due to varying frequency behaviors, modulation schemes, and impedances of NFC readers across different locations, leading to suboptimal performance in public transport and payment systems.
Innovation Solution
A method for configuring NFC devices in mobile terminals by determining the geographic position or identifying nearby wireless networks to select and apply appropriate configuration parameters from a stored table, which includes settings for antenna matching, communication protocols, and software applications, ensuring compatibility with diverse NFC infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If NFC device parameters are fixed to ensure basic functionality, then device complexity is reduced, but interoperability with different NFC readers across locations deteriorates
Solution Approach 1:
The NFC device configuration transitions from static to dynamic by automatically selecting parameters based on geographic location. The system determines the device's location and dynamically adjusts NFC parameters (frequency, modulation scheme, impedance) to match the local NFC reader characteristics, enabling adaptability without increasing operational complexity for the user.
Solution Approach 2:
The invention changes physical parameters of the NFC device (operating frequency, modulation scheme, impedance) based on geographic location. A configuration table stores multiple sets of parameters corresponding to different locations, and the system selects the appropriate set automatically, allowing the device to adapt to different NFC infrastructures without requiring manual reconfiguration.
2Adaptability or versatility
If NFC device parameters are made reconfigurable to improve interoperability, then adaptability increases, but device complexity and configuration management worsen
Solution Approach 1:
The NFC device performs self-configuration by automatically determining its geographic location and selecting the appropriate parameters from the configuration table without user intervention. The system autonomously manages the complexity of having multiple parameter sets, eliminating the burden of manual configuration while maintaining high interoperability.
Solution Approach 2:
The configuration table is pre-populated with location-specific NFC parameters before the device is deployed. This preliminary preparation allows the device to quickly adapt to different locations by simply looking up and applying the pre-configured parameters, avoiding the need for real-time analysis or complex configuration decisions during operation.
3Reliability
If location-based configuration is implemented to enhance interoperability, then transaction success rate improves, but loss of time for location determination and parameter selection increases
Solution Approach 1:
The configuration table is pre-filled with location-specific parameters during device setup or updates, so that when the device moves to a new location, it can quickly look up and apply the appropriate parameters without performing complex real-time analysis. This preliminary preparation significantly reduces the time required for configuration during actual transactions.
Solution Approach 2:
The invention replaces manual configuration processes with automated electronic determination of location and parameter selection. By using GPS coordinates or network identifier matching to automatically select parameters from a digital configuration table, the system eliminates time-consuming manual intervention while ensuring reliable interoperability.
4Adaptability or versatility
If configuration table is stored externally to allow updates, then adaptability to new locations improves, but reliability of NFC function when external connection is unavailable deteriorates
Solution Approach 1:
The configuration table is stored in a nested structure where a complete set of location-specific parameters is embedded within the NFC device's internal memory. This internal copy ensures that the device can autonomously determine its location and apply appropriate parameters even when disconnected from external networks, while still allowing periodic updates when connectivity is available.
Solution Approach 2:
The device maintains a local backup of the configuration table in its internal memory, providing a cushion against potential external connection failures. This pre-stored configuration data ensures that the NFC function remains reliable and operational even in areas with limited or no wireless connectivity, while the device can still update its configuration when external access is available.
Data Source
AI summary
A method of configuration of a mobile terminal including a near-field communication device is provided. The method includes determining the geographic position of the mobile terminal. The method further includes selecting, from a configuration table stored in an internal memory of the mobile terminal, a set of one or a plurality of configuration parameters of the near-field communication device according to the geographic position, and applying a selected set of parameters to the near-field communication device.