Automated Frequency Allocation for Wireless Audio Systems
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Solution Overview
Problem
Current methods for assigning frequency ranges in wireless audio communication, particularly in professional wireless microphone systems, are inefficient and prone to interference due to static frequency allocation and limited availability, especially with the transition from static to dynamic coexistence scenarios.
Innovation Solution
An automated method for licensing and coordinating frequency use within a defined portfolio, utilizing a proxy service and sensor network to ensure scalable and interference-free operation among different users, allowing for flexible and efficient frequency allocation without direct user communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual frequency allocation methods are used with static assignment, then simplicity of operation is maintained, but frequency utilization efficiency deteriorates and interference increases
Solution Approach 1:
The patent introduces a centralized frequency management system that acts as an intermediary between wireless microphone users and the frequency spectrum. This system automatically allocates frequencies, senses interference, and coordinates usage across multiple users and geographic locations, transforming the manual static allocation process into an automated dynamic system that improves efficiency without requiring end users to directly manage complex frequency coordination
Solution Approach 2:
The system implements continuous feedback loops through frequency sensing mechanisms that monitor the radio environment in real-time. This feedback information is used to dynamically adjust frequency allocations, avoid interference from other services (such as DVB-T transmitters), and optimize spectrum utilization. The feedback mechanism enables the system to adapt to changing conditions and maintain efficient frequency usage
2Productivity
If frequency ranges are allocated to multiple users simultaneously, then frequency utilization efficiency improves, but mutual interference increases
Solution Approach 1:
The patent segments the frequency spectrum into distinct allocable units and divides geographic service areas into manageable zones. By segmenting both frequency resources and spatial domains, the system can allocate specific frequency ranges to specific geographic regions and time periods, allowing multiple users to operate simultaneously without interference. This segmentation enables fine-grained control over spectrum access and prevents harmful interactions between users
Solution Approach 2:
The system implements local quality control by tailoring frequency allocations to specific geographic locations and local interference conditions. Different regions may receive different frequency assignments based on their unique radio environment characteristics, such as proximity to DVB-T transmitters or other interfering services. This localized approach ensures optimal interference-free operation for each user while maximizing overall spectrum utilization
3Productivity
If automated frequency allocation systems are implemented, then frequency utilization efficiency improves, but system complexity and implementation cost increase
Solution Approach 1:
The patent designs a universal frequency management system that can serve multiple wireless microphone users, different geographic regions, and various frequency bands through a single centralized platform. This multi-functional system handles frequency allocation, interference sensing, license management, and coordination for diverse users simultaneously, reducing the need for separate specialized systems and lowering overall implementation complexity and cost
4Measurement precision
If frequency scanning and sensing methods are used, then interference detection capability improves, but time consumption and operational complexity increase
Solution Approach 1:
The system performs preliminary frequency sensing and environment assessment before finalizing frequency allocations. By proactively scanning and characterizing the radio environment in advance, the system identifies suitable frequency ranges and potential interference sources ahead of user deployment. This preliminary action reduces the time required during actual operation and minimizes the need for time-consuming adjustments after frequency assignment
Data Source
Figure 1~2
AI summary
A method and arrangement for the automated allocation of frequency ranges in a network are presented. In this process, at least one user (18) sends a request to a database (16) containing information on frequency ranges, and a proxy server (12) is provided to process the at least one request.