UAV Resource Allocation for Interference Mitigation
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Solution Overview
Problem
In wireless communication systems, unmanned aerial vehicles (UAVs) experience interference due to receiving signals from multiple base stations using the same resources, leading to downlink and uplink interference issues, which affect data and control information transmission.
Innovation Solution
Electronic equipment in the wireless communication system generates resource configuration information based on interference conditions and transmits it to base stations outside the neighbor cells to coordinate information transmitting resources, employing time, frequency, or space division multiplexing to avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If UAV flies at high altitude to expand coverage area, then coverage area is improved, but interference from multiple base stations increases
Solution Approach 1:
The patent implements dynamic resource configuration that adapts to UAV altitude changes. The base station determines whether the UAV is in high-altitude mode based on altitude information, and dynamically adjusts resource allocation strategies accordingly. This dynamic adaptation allows the system to optimize coverage while managing interference based on real-time altitude conditions.
Solution Approach 2:
The patent changes resource configuration parameters based on UAV altitude. When the UAV is detected to be in high-altitude flight mode, the base station modifies resource allocation parameters including time resource configurations, frequency resource assignments, and power control parameters to reduce interference from multiple base stations while maintaining expanded coverage.
2Productivity
If base stations use same resources for transmission, then resource utilization efficiency is improved, but interference to UAV increases
Solution Approach 1:
The patent segments resource allocation into different configurations based on UAV altitude. For high-altitude UAVs, the system divides time resources into specific patterns (such as configuring reference signals and data transmissions in alternating slots) and assigns different frequency resources to different base stations. This segmentation reduces simultaneous transmissions on the same resources, thereby reducing interference while maintaining reasonable resource utilization.
Solution Approach 2:
The patent applies local quality by providing differentiated resource configurations tailored to the specific interference conditions experienced by high-altitude UAVs. Instead of uniform resource allocation, the system adjusts time and frequency resource qualities locally for cells serving high-altitude UAVs, optimizing the balance between resource utilization and interference reduction for these specific users.
3Reliability
If resource configuration is optimized for high altitude UAV, then communication quality is improved, but system complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism where the base station acts as a mediator that receives altitude information from the UAV and automatically determines appropriate resource configurations. This intermediary processing layer simplifies the overall system complexity by centralizing the decision-making logic at the base station, avoiding the need for complex coordination between multiple base stations and the core network, while still achieving optimized communication quality for high-altitude UAVs.
Data Source
AI summary
The present disclosure relates to an electronic apparatus, a method and a computer-readable storage medium for a wireless communication system. The electronic apparatus for a wireless communication system according to the present disclosure comprises: a processing circuit, configured to generate resource allocation information according to interference conditions encountered by user equipment (UE), wherein a current altitude of the UE is higher than an altitude threshold, and sending the resource allocation information to base station equipment of other cells apart from neighboring cells of a current serving cell of the UE, so as to configure information sending resources for the base station equipment of the other cells. The electronic device, method and computer-readable storage medium of the present disclosure are capable of reducing information interference generated in a wireless communication system of an unmanned aerial vehicle device.