Fixed-Path Automated Frequency Coordination via Predictive Channel Mapping
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Solution Overview
Problem
In wireless networking environments with fixed paths, such as vehicles or trains, frequent channel changes due to imprecise location determination lead to connectivity disruptions, increased latency, and inefficient spectrum utilization.
Innovation Solution
Implementing a path optimization logic that utilizes polygon data to predict and manage radio frequency coordination, minimizing unnecessary channel changes by anticipating network conditions along the path, including altitude and location changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional location determination methods are used for fixed path wireless devices, then the system can operate with simple location tracking, but frequent channel changes occur due to imprecise location determination leading to connectivity disruptions and increased latency
Solution Approach 1:
The system pre-determines optimal channels for multiple future locations along the fixed path before the device actually reaches those locations. By anticipating future spectrum conditions and pre-selecting channels, the system avoids reactive channel changes that cause connectivity disruptions. The path optimization logic stores these pre-determined channels and applies them when the device reaches the corresponding locations, ensuring seamless transitions without frequent reconfiguration.
2Productivity
If frequent channel changes are implemented to adapt to changing spectrum conditions, then spectrum utilization efficiency may improve, but connectivity disruptions and latency increase
Solution Approach 1:
The system performs spectrum analysis and channel optimization in advance for all locations along the fixed path, storing the optimal channel assignments before the device begins its journey. This preliminary action eliminates the need for real-time channel changes during device operation, as the optimal channels are already predetermined and ready for immediate application when the device reaches each location, thus avoiding connectivity disruptions entirely.
Solution Approach 2:
The system dynamically adapts channel assignments based on the device's position along the path by using pre-calculated channel maps that correspond to different locations. Rather than making frequent reactive changes, the system smoothly transitions between pre-determined channels as the device moves through different geographic zones, optimizing spectrum utilization while maintaining continuous connectivity.
3Measurement precision
If real-time spectrum monitoring is performed at every location along the path, then accurate channel selection is achieved, but system complexity and processing overhead increase
Solution Approach 1:
The path optimization logic performs comprehensive spectrum monitoring and analysis in advance for all locations along the fixed path, creating a detailed channel map before the device begins its journey. This preliminary spectrum characterization captures the RF environment at multiple locations and stores the findings for later use. When the device operates, the system simply retrieves pre-determined channel assignments from the stored data rather than performing real-time spectrum analysis, dramatically reducing processing overhead while maintaining accurate channel selection.
Data Source
AI summary
Devices, systems, methods, and processes for optimizing wireless communications on paths is described herein. Paths may be associated with vehicles which can include one or more mobile access points (APs). When travelling on a constrained path or track, a series of polygons can be configured to project a time-series determination on the upcoming available channels and power levels available. By utilizing the embodiments described herein, mapping along the polygon paths can help to optimize the selected channels based on the current trajectory. The AP can subsequently select channels that fulfill a constrained optimization function or similar problem based on the current network and path conditions. These embodiments can be operated on an automated frequency coordination (AFC) device, or network device that is in communication with the AP and/or AFC. Data may be held as well based on the current network conditions and transmitted based on the determined upcoming conditions.