Serving Cell Transmission Gain Control for UAV Coverage Edges
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Solution Overview
Problem
Existing wireless networks struggle to efficiently manage coverage range for aerial user equipment (AUE) such as unmanned aerial vehicles (UAVs), leading to inefficient power usage and potential signal loss at the edges of coverage areas.
Innovation Solution
Implementing special serving cell equipment with up-tilted antennas and adjustable transmission gain values to dynamically adjust coverage based on the location and signal quality of AUE, using channel quality indicators and attach request messages to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If serving cell equipment uses fixed transmission gain values, then device complexity is reduced, but power efficiency deteriorates due to inability to dynamically adjust coverage range
Solution Approach 1:
The serving cell equipment dynamically adjusts transmission gain values based on the location and signal quality of aerial user equipment. The system transitions from static to dynamic operation by monitoring AUE position and channel conditions, then modifying transmission parameters in real-time to optimize power efficiency while maintaining connectivity.
Solution Approach 2:
The system implements feedback mechanisms where the serving cell equipment receives channel quality indicators and location information from aerial user equipment, processes this information to determine optimal transmission gain values, and adjusts its transmission accordingly. This closed-loop control enables adaptive power management based on actual service conditions.
2Area of stationary object
If serving cell equipment increases transmission gain to extend coverage, then coverage range is improved, but energy consumption increases
Solution Approach 1:
The system changes transmission parameter (gain value) based on service conditions. When aerial user equipment is located at coverage edges or experiences poor signal quality, the serving cell equipment increases transmission gain to extend effective coverage. When AUE is in favorable positions, the system reduces gain to minimize energy consumption, thus dynamically optimizing the coverage-energy tradeoff.
3Use of energy by stationary object
If serving cell equipment decreases transmission gain to save power, then energy consumption is reduced, but signal quality at coverage edges deteriorates
Solution Approach 1:
The system performs preliminary assessment of aerial user equipment location and channel conditions before adjusting transmission gain. By proactively identifying AUE at coverage edges through location reporting and signal quality measurements, the system can increase transmission gain in advance to prevent signal degradation, ensuring reliable connectivity while avoiding unnecessary power consumption when full power is not needed.
Data Source
AI summary
An architecture for controlling the coverage range of serving cell equipment servicing UAVs over advanced networks. A method can comprise receiving channel quality indicator values representing a channel quality experienced by aerial user equipment, based on the channel quality indicator value, determining that the channel quality being experienced by the aerial user equipment is less than a low signal quality threshold value, based on channel quality indicator value falling below the low signal quality threshold value, determining that the aerial user equipment is located at an edge portion of a broadcast coverage area cast by the serving cell equipment, and based on determining that the aerial user equipment is located at the edge portion of the broadcast coverage area, instructing the serving cell equipment to set a transmission gain value associated with the serving cell equipment to a maximum value.