Base Station Configuration Altitude Adjustment
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Solution Overview
Problem
High-altitude base stations in cellular wireless communication systems experience interference and handoff issues due to broader signal coverage, leading to inappropriate handoffs and interference with low-altitude base stations.
Innovation Solution
A method that automatically adjusts operational parameters of base stations based on their altitude, including transmit power, carrier frequency, whitelist configuration, and handoff parameters, to minimize interference and prevent inappropriate handoffs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If base stations are installed at high altitudes to address coverage gaps, then network coverage is improved, but interference and handoff problems increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting base station operational parameters (transmit power, carrier frequency, handoff parameters) based on altitude. High-altitude base stations are configured with different parameters than low-altitude stations, allowing the system to adapt to varying interference conditions while maintaining coverage benefits.
Solution Approach 2:
The patent implements dynamics by enabling automatic adjustment of base station configuration based on real-time altitude detection. The system transitions from static configuration to dynamic reconfiguration, allowing base stations to adapt their operational parameters according to their elevation and resulting interference profile.
2Area of stationary object
If high-altitude base stations transmit signals, then coverage area is expanded, but forward link interference to low-altitude base stations increases
Solution Approach 1:
The patent applies local quality by assigning different operational parameters to base stations based on their specific location characteristics (altitude). High-altitude base stations receive specialized configuration different from low-altitude stations, allowing each local environment to be optimized for its specific interference conditions.
Solution Approach 2:
The patent uses an intermediary mechanism (altitude detection and configuration system) that mediates between the desire for expanded coverage and the need to reduce interference. This intermediary layer automatically adjusts parameters based on detected altitude, preventing direct conflict between coverage expansion and interference reduction.
3Power
If base station transmit power is increased to overcome interference, then signal strength is improved, but interference to other base stations increases
Solution Approach 1:
The patent applies parameter changes by adjusting transmit power specifically for high-altitude base stations based on their altitude. Rather than uniform power increase, the system modifies power parameters locally according to each base station's elevation and resulting interference footprint.
Data Source
AI summary
Presently disclosed are methods and systems to dynamically adjust base station configurations based on the altitude of the base station. One embodiment takes the form of a method carried out by a cellular base station system. The method includes determining that an altitude of a cellular base station exceeds a threshold. The method also includes configuring the cellular base station with one or more operational parameters based on the determined altitude. The one or more operational parameters includes at least one parameter selected from the group consisting of a transmit power, a carrier frequency, a handoff parameter, and a whitelist.