Radio Signal Characteristic Extraction for Interference Control
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Solution Overview
Problem
Current radio communication systems face challenges in efficiently managing interference between radio stations, particularly in allocating frequency bands to prevent mutual interference while maintaining high frequency use efficiency, especially as the number of base stations increases, leading to difficulties in accurately identifying transmission sources and allocating characteristic data effectively.
Innovation Solution
A radio communication system and method that extracts and analyzes waveform characteristic data to determine additive characteristic data for transmission signals, allowing for geographically diverse distribution of radio stations using the same characteristic data, thereby enabling aggressive frequency reuse without interfering with nearby stations, and adjusting characteristic data based on energy levels and usage counts to optimize interference control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If frequency reuse method is used to control interference, then interference power level is reduced, but frequency use efficiency per unit area is degraded
Solution Approach 1:
The patent applies local quality by allowing different base stations to use different frequency bands based on their local geographic location and interference environment. Instead of uniform frequency allocation, each base station dynamically selects frequencies suitable for its specific area, enabling frequency reuse in non-adjacent cells while maintaining interference control.
Solution Approach 2:
The patent implements dynamics by enabling base stations to dynamically adjust their frequency band selection and characteristic data based on real-time interference measurements and environmental conditions. This dynamic adaptation allows the system to optimize frequency usage efficiency while maintaining interference control, rather than using static frequency assignments.
2Object-affected harmful factors
If multi-user MIMO is used to reduce interference, then interference power level is reduced and frequency use efficiency is improved, but large scale equipment change and accurate propagation path information are required
Solution Approach 1:
The patent employs a simpler, more practical approach compared to complex MIMO systems. Instead of requiring large-scale equipment changes and multiple antennas, the invention uses characteristic data extraction and frequency band selection methods that can be implemented with minimal hardware modifications, making the solution more economically viable and easier to deploy.
Solution Approach 2:
The patent extracts and utilizes specific characteristic data from received signals to identify transmission sources and manage interference. By focusing on extracting relevant signal characteristics rather than implementing full MIMO complexity, the system achieves interference control with simpler equipment and less infrastructure change.
3Measurement precision
If characteristic data is extracted from received signals to identify transmission sources, then interference control accuracy is improved, but difficulty in detecting and measuring increases
Solution Approach 1:
The patent applies partial action by extracting only the essential characteristic data needed for interference control rather than analyzing all signal parameters. This selective extraction of key characteristics (such as frequency band, modulation type, or specific signal features) reduces measurement complexity while maintaining sufficient accuracy for identifying transmission sources and controlling interference.
Data Source
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AI summary
A radio communication apparatus includes a characteristic data extraction unit receiving a radio signal from one or more radio stations and calculating characteristic data representing a waveform characteristic indicating statistical properties of the received signal; a characteristic data determination unit determining at least one characteristic data based on one or more calculated characteristic data; a signal generation unit converting a signal for a radio transmission into a signal having a format corresponding to the determined characteristic data, and generating a transmission signal having a characteristic waveform based on the characteristic data; and a transmission unit transmitting the transmission signal.