Wireless Terminal Dynamic Frequency Adaptation for Cross-Border Compliance
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Solution Overview
Problem
Wide band wireless communication systems face interference and compliance issues when moved across countries due to differing frequency bands and regulations, leading to restricted usage and potential interference with other systems, such as radio wave observatories.
Innovation Solution
A wireless communication system that includes an area information acquisition unit, a judging unit, and a communication control unit to set frequency bands, signal types, and transmission output powers based on GPS or beacon signals from a second wireless communication system, ensuring compliance with local regulations and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wide band wireless terminal is moved to another country, then international usage and mobility are improved, but interference from another apparatus occurs because frequency bands and regulations differ by country
Solution Approach 1:
The patent implements dynamic adjustment of frequency bands and communication parameters based on GPS location detection. The system automatically changes operating parameters according to the detected country or region, enabling the terminal to adapt to local regulations and avoid interference while maintaining international mobility.
Solution Approach 2:
The system uses GPS location information as feedback to determine the current country or region, then adjusts frequency band selection accordingly. This feedback mechanism ensures the terminal operates within legal frequency ranges and avoids interfering with local communication systems in each country visited.
2Reliability
If frequency bands are fixed for a specific country, then compliance with local regulations is improved, but usage when moved to another country is restricted
Solution Approach 1:
The patent employs dynamic frequency band selection based on detected location. Instead of fixing frequency bands to a single country, the system continuously monitors GPS coordinates and adjusts the operating frequency band to match the local regulations of the current country, ensuring both compliance and international usability.
Solution Approach 2:
The system is designed with multi-functionality to operate across multiple countries and frequency bands. By incorporating a database of country-specific frequency regulations and using GPS-based location detection, the terminal can universally adapt to different national regulations, making it compliant in any country while maintaining broad usage capability.
3Object-affected harmful factors
If band-pass filter is used to eliminate frequency range of another system, then reception of interference is improved, but device complexity increases
Solution Approach 1:
The patent applies band-pass filters in advance before the LNA (Low Noise Amplifier) to prevent saturation from strong interfering signals. By eliminating unwanted frequency ranges beforehand, the system protects the LNA from overload while maintaining simple overall architecture, avoiding the need for complex adaptive filtering algorithms.
Data Source
AI summary
A wireless communication apparatus is provided in which a frequency band, a signal type, and a transmission power conforming to radio law of a country that uses a first wireless communication system are set by means of a receiving status of a specific signal of a second wireless communication system, so that user friendly wireless communication apparatus regarding operations thereof can be provided. In the wireless communication system 1 according to the present invention, an area information acquisition portion 2 acquires information on an area in which the wireless communication system presently exists. Based on communication setting information in the wireless communication system corresponding to area information stored in an information memory portion 4, an area information judgment portion 3 judges communication setting information capable of being set in the wireless communication system in accordance with the area information acquired from the area information acquisition portion 2. Based on the communication setting information judged by the area information judgment portion 3, communication parameter control setting portion 5 controls communication settings of the wireless communication system.