Geolocation Database Spatio-Temporal Spectrum Map
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Solution Overview
Problem
Current geolocation databases for white spaces face challenges in accurately determining interference, leading to sub-optimal usage of resources and financial losses, especially for mobile frequency users who must re-register frequently, resulting in limited accuracy and inefficient use of white space resources.
Innovation Solution
The enhancement of geolocation databases through the integration of spatio-temporal spectrum maps and white space spectrum sensors that provide real-time measurement data, allowing for more accurate spectrum availability decisions and validation of database decisions using external spectrum utilization measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terrain and radio propagation models are used to protect incumbent users, then interference protection is provided, but white space resources are not used optimally resulting in sub-optimal usage and financial losses
Solution Approach 1:
The patent implements a feedback mechanism where actual spectrum measurements from the environment are continuously fed back to update and refine the terrain and radio propagation models in the geolocation database. This closed-loop approach allows the system to learn from real-world data, improving the accuracy of interference predictions over time. As a result, the system can make more precise decisions about white space availability, protecting incumbent users while maximizing resource utilization by avoiding overly conservative denials.
2Ease of operation
If approximation models are used for the decision process, then database operations remain feasible, but accuracy of spectrum availability decisions is limited
Solution Approach 1:
The patent performs preliminary actions by continuously collecting and pre-processing actual spectrum measurements from the environment, storing them in the geolocation database before they are needed for decision-making. This pre-computation and pre-storing of empirical data allows the system to quickly augment approximation models with real-world information during operational decisions, improving accuracy without adding significant computational burden to the real-time decision process.
3Reliability
If mobile frequency users re-register every 60 seconds according to current state of the art, then regulatory requirements are met, but accuracy is limited and efficiency is reduced
Solution Approach 1:
The patent enables mobile frequency users to perform self-service by continuously tracking their own location and autonomously determining spectrum availability based on the enhanced geolocation database that contains actual environmental measurements. This self-service capability allows users to maintain regulatory compliance without frequent manual re-registrations, as the system automatically adapts to their movement and provides continuous authorization based on real-time location and updated interference data.
Solution Approach 2:
The patent implements continuity of useful action by establishing a persistent connection between mobile users and the geolocation database, where the database continuously provides updated spectrum availability information as users move. Instead of discrete re-registration events, the system maintains continuous authorization, automatically updating users on available white spaces based on their current location and the latest environmental measurements, thereby eliminating the need for frequent re-registrations while maintaining regulatory compliance.
Data Source
AI summary
A method and a system for the operation of a geolocation database comprising a spatiotemporal spectrum map comprising of white space spectrum occupancy and/or white space spectrum underutilization data, wherein a) at least one white space spectrum sensor takes measurement data remote from the geolocation database; b) the measurement data are transmitted to the geolocation database; c) the spatio-temporal spectrum map and/or its parameters and/or decisions based on this spectrum map are modified in dependence of the measurements received by the geolocation database.