UAV Wireless Communication Height Thresholds for Interference Control
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Solution Overview
Problem
Unmanned Aerial Vehicles (UAVs) operating in LTE-based communication systems face challenges due to their varying flight heights and speeds, leading to interference issues and suboptimal communication performance, as they can be regarded as interference signals for other cells when flying high, affecting normal communication devices.
Innovation Solution
A scheme is implemented to configure the operation of user equipment based on height thresholds, optimizing communication performance by determining and configuring height thresholds for UAVs, which are then used to manage operation modes and resource allocation, reducing interference and improving resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If UAVs operate at high flight heights in LTE networks, then communication coverage and line-of-sight are improved, but interference to other cells increases
Solution Approach 1:
The patent segments the UAV communication system into multiple operation modes (first operation mode for low altitude, second operation mode for high altitude) based on height thresholds. This segmentation allows different resource allocation strategies to be applied to different altitude ranges, thereby managing interference while maintaining coverage benefits.
Solution Approach 2:
The patent implements dynamic switching between operation modes based on the UAV's current flight height relative to configured thresholds. The network device dynamically adjusts resource allocation and communication parameters according to the UAV's altitude, enabling the system to adapt to changing interference conditions while maintaining optimal coverage.
2Device complexity
If UAVs are treated as ordinary UEs, then network integration is simplified, but communication performance deteriorates due to interference and resource conflicts
Solution Approach 1:
The patent extends the existing LTE framework to accommodate UAVs by introducing height-based operation modes that build upon conventional UE procedures. The solution maintains compatibility with existing network infrastructure while adding UAV-specific resource allocation mechanisms, achieving both simplicity and performance.
Solution Approach 2:
The patent introduces height threshold parameters and operation mode parameters specific to UAVs, while reusing standard LTE parameters for low-altitude operations. This parameter-based approach allows the network to differentiate UAVs from ordinary UEs only when necessary (high altitude), maintaining simplicity for most cases while improving performance when needed.
3Productivity
If height-based operation modes are implemented, then resource allocation is optimized, but system complexity increases
Solution Approach 1:
The patent pre-configures height thresholds and operation mode parameters through RRC signaling before UAV communication begins. This preliminary configuration establishes clear decision boundaries for mode switching, simplifying real-time resource allocation decisions while maintaining optimized resource utilization across different altitude ranges.
Data Source
AI summary
An apparatus and a method of a wireless communication system, and a computer-readable storage medium are disclosed. The apparatus comprises a processing circuit. The processing circuit is configured to configure, directly or indirectly on the basis of one or more height thresholds for user equipment and a current height of the user equipment, operation of the user equipment. According to at least one aspect of the embodiments of the disclosure, configuring, on the basis of a height threshold, operation of a user equipment optimizes communication performance in an unmanned aerial vehicle communication scenario.