RF Sensor Network for Spectrum Compliance in Private Wireless
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Solution Overview
Problem
Private wireless networks operating on licensed radio frequency spectrum face challenges in ensuring compliance with operating constraints and maintaining RF characteristics within prescribed limits, necessitating a method to assess and enforce compliance externally.
Innovation Solution
A wireless sensor network system comprising RF sensors deployed within and near the network area, capable of sensing RF parameters, connecting to network elements, and enforcing compliance by monitoring and managing radio devices to operate within specified operating bounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If private wireless networks operate on licensed radio frequency spectrum, then network performance and reliability are improved, but compliance monitoring and enforcement complexity increases
Solution Approach 1:
The patent introduces a spectrum sensor network as an intermediary system between licensed wireless networks and regulatory authorities. These sensors continuously monitor RF parameters (frequency, power, modulation) of transmissions and automatically enforce compliance with spectrum sublicense terms, eliminating the need for complex manual monitoring while maintaining network reliability
Solution Approach 2:
The system implements continuous feedback loops where spectrum sensors monitor network operations, compare measured parameters against licensed limits, and automatically generate compliance reports or enforcement actions. This automated feedback mechanism resolves the contradiction by maintaining reliable network operation while simplifying compliance monitoring through real-time detection and response
2Measurement precision
If spectrum sensors are deployed within and near network areas, then compliance monitoring accuracy is improved, but system complexity and deployment cost increase
Solution Approach 1:
The patent divides the monitoring function into distributed spectrum sensor nodes deployed at multiple locations within and near the network area. Each sensor independently measures RF parameters and contributes to overall compliance assessment, improving measurement precision through spatial distribution while managing system complexity through modular, standardized sensor units
Solution Approach 2:
The spectrum sensors are designed as multi-functional devices that can monitor multiple RF parameters (frequency, power spectral density, modulation characteristics) across different frequency bands simultaneously. This universal design improves compliance monitoring accuracy without proportionally increasing system complexity, as a single sensor node performs multiple measurement functions
3Reliability
If RF parameters are continuously monitored, then spectrum compliance is ensured, but energy consumption and processing requirements increase
Solution Approach 1:
The patent implements periodic sampling of RF parameters rather than truly continuous monitoring. Sensors measure spectrum usage at regular intervals and for a predetermined duration, then compare measurements against compliance thresholds. This periodic approach ensures spectrum compliance while significantly reducing energy consumption and processing requirements compared to uninterrupted monitoring
Solution Approach 2:
The system performs monitoring at sufficient frequency to ensure compliance but not necessarily at maximum possible frequency. By implementing monitoring at adequate intervals rather than exhaustive continuous measurement, the system achieves reliable compliance assurance while constraining energy consumption to practical levels for battery-powered or resource-constrained sensor nodes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures compliance with spectrum sublicense terms by continuously monitoring and controlling RF characteristics, allowing private wireless networks to operate within prescribed limits without interfering with other networks.
Implementation Method 1
a wireless sensor sensing radio frequency parameters at the first frequency spectrum of its vicinity
Data Source
AI summary
A wireless networking infrastructure includes at least one multiple radio access point or base station including at least one radio that operates on a first radio communications protocol at a first frequency spectrum, and a second radio that operates on a second radio communication protocol at a second frequency spectrum; at least one remotely deployable wireless sensor; and a wireless network controller configured to establish connection with one or more of the at least one multiple radio access point or base station to form a wireless network operating at the first frequency spectrum, establish specific geolocations of the at least one multiple radio access point or base station and of the at least one remotely deployable wireless sensor, and receive and store radio operating parameters for radios operating at the first frequency spectrum at the specific geolocations.