UAV Base Station Handover Using Flight Path Prediction
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Solution Overview
Problem
Current cellular networks lack a technical solution for controlling unmanned aerial vehicles (UAVs), which limits their application range and mobility due to inadequate handover management between base stations.
Innovation Solution
A method and apparatus for controlling UAVs by receiving and transmitting flight path information between UAV controllers and base stations, enabling determination of next base stations and performing handover preparations, thereby improving UAV mobility and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cellular network control methods are used for UAVs, then basic network service can be provided, but handover management between base stations is inadequate, limiting UAV mobility and increasing handover latency
Solution Approach 1:
The patent applies preliminary action by having the UAV controller send flight path information to the current base station in advance. The current base station then proactively determines the next base station based on the flight path and performs handover preparation before the UAV actually moves to the new base station area, reducing handover latency and improving reliability.
2Loss of information
If flight path information is transmitted through multiple intermediaries (UAV controller to UAV to base station), then information can be delivered, but transmission reliability decreases and latency increases
Solution Approach 1:
The patent extracts the flight path information transmission from the traditional indirect path (controller→UAV→base station) and establishes a direct transmission channel from the UAV controller to the base station. This eliminates the UAV as an intermediate node for this specific information, reducing transmission latency and improving reliability.
3Adaptability or versatility
If base stations operate independently without coordinated handover preparation, then system complexity is low, but UAV mobility support is inadequate
Solution Approach 1:
The current base station performs preliminary determination of the next base station and initiates handover preparation in advance based on received flight path information. This proactive approach enables coordinated multi-base station operation for UAV handover without requiring complex real-time coordination mechanisms, thus improving UAV mobility support while keeping system complexity manageable.
Data Source
AI summary
A method and apparatus for controlling a UAV are provided. The method is applied to a base station, and includes: receiving flight path information transmitted by a UAV controller, wherein the flight path information represents a flight path set by the UAV controller for a UAV controlled by the UAV controller; determining the flight path based on the flight path information; and determining a next base station to which the UAV is to move based on the flight path, and performing a handover preparation for the next base station. Therefore, the present disclosure improves the mobility of the UAV and can also reduce the latency of handover between base stations.