AFC Geolocation Filtering for Vertical Uncertainty Reduction
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately determining vertical uncertainties and optimizing frequency coordination (AFC) processes, leading to inefficiencies and increased computational load due to the need to evaluate numerous discrete AFC points.
Innovation Solution
A method involving network entities that receive and process location and uncertainty information from access points (APs) to determine a region of uncertainty, perform AFC functions, and send transmit power density information, thereby optimizing the AFC process by reducing vertical uncertainties and ignoring irrelevant regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AFC process evaluates numerous discrete AFC points to ensure comprehensive frequency coordination, then the accuracy and reliability of frequency coordination is improved, but the computational complexity and processing time increase significantly
Solution Approach 1:
The patent extracts and utilizes only the vertical uncertainty component from the full uncertainty region, eliminating the need to process all discrete AFC points within the uncertainty region. By taking out only the essential vertical uncertainty parameter, the system achieves reliable frequency coordination while significantly reducing computational complexity.
Solution Approach 2:
The patent segments the uncertainty region processing by separating vertical uncertainty from horizontal uncertainty. The vertical uncertainty is used to determine the relevant AFC points, while horizontal uncertainty is handled separately through barometric pressure adjustments. This segmentation allows the system to focus computational resources only on the most critical dimension for frequency coordination.
2Productivity
If the system processes all discrete AFC points within the uncertainty region, then the completeness of frequency coordination is improved, but the processing time and computational load increase
Solution Approach 1:
The patent extracts only the vertical uncertainty parameter from the complete uncertainty region description. This extracted parameter is sufficient to determine the relevant AFC points, eliminating the need to process all discrete points within the uncertainty region. The result is significantly reduced processing time while maintaining complete and accurate frequency coordination.
Solution Approach 2:
Instead of processing all discrete AFC points (excessive action), the patent applies partial action by using only the vertical uncertainty parameter to identify and process the essential AFC points. This partial approach achieves the same coordination accuracy with much lower computational cost and processing time.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, an access point (AP) queries two or more height determination geolocation services and uses the smallest reported vertical uncertainty for an automated frequency coordination (AFC) process. In an aspect, portions of an uncertainty region that are above the tallest building in the uncertainty region are ignored during an AFC process. In an aspect, portions of the uncertainty region that are not within a building footprint are ignored during an AFC process. In an aspect, portions of an uncertainty region that are above the height of a specific building in which a particular calculation point is located are ignored during an AFC process.