UAV Height-Based LTE Resource Allocation for Interference Control
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Solution Overview
Problem
Existing LTE-based UAV communication systems face challenges in optimizing communication performance due to the unique flight characteristics of UAVs, such as varying heights and speeds, which can lead to interference and suboptimal resource allocation.
Innovation Solution
The system configures the operation of user equipment based on height thresholds, generating information related to the current height of the UAV and sending it to the base station for configuring optimal operation modes and resource allocation.
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 LTE frequency spectrum into dedicated uplink resources for UAVs separate from ground UE resources. By allocating specific frequency bands and time slots exclusively for high-altitude UAV communication, the system enables extended coverage while preventing interference to ground-based cells through resource isolation.
Solution Approach 2:
The patent applies local quality by configuring cell-specific uplink interference coordination parameters for cells that are interfered by high-altitude UAVs. Different cells receive customized interference mitigation configurations based on their specific interference scenarios, allowing targeted suppression of harmful interference while maintaining normal communication performance.
2Device complexity
If UAVs are treated as ordinary ground UEs, then network integration is simplified, but communication performance deteriorates due to unique flight characteristics
Solution Approach 1:
The patent implements dynamic UAV-specific parameter configurations that adapt to the UAV's flight characteristics such as height, speed, and location. The system dynamically adjusts uplink power control parameters, resource allocation, and interference coordination settings based on real-time UAV status, thereby optimizing communication performance for mobile aerial platforms while maintaining manageable network integration through standardized interfaces.
Solution Approach 2:
The patent changes key communication parameters specifically for UAVs, including uplink maximum power, power ramping steps, and pathloss compensation factors. These parameter modifications account for the different propagation characteristics and mobility patterns of UAVs compared to ground UEs, improving communication reliability without requiring complete redesign of the network architecture.
3Ease of manufacture
If standard LTE resource allocation is used for UAVs, then deployment is easier, but resource allocation efficiency decreases due to varying flight heights and speeds
Solution Approach 1:
The patent applies preliminary action by pre-configuring UAV-specific uplink resource pools and parameter sets before UAV deployment. The network pre-allocates dedicated frequency resources, power control parameters, and interference coordination settings for UAV operations, enabling rapid deployment without complex real-time optimization while ensuring efficient resource utilization tailored to aerial communication needs.
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.