UAV Flight Path Reporting for Predictive Cellular Handover
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Solution Overview
Problem
Existing cellular networks face challenges in predicting the flight path and trajectory of unmanned aerial vehicles (UAVs) in fixed flight modes, necessitating improved methods for determining and reporting flight path information to facilitate seamless handover processes.
Innovation Solution
UAVs determine and report flight path information, including positioning points, flight speed, altitude, and reporting time, using radio resource control (RRC) signaling, with optional indicating bits for data transmission completion, allowing the base station to prepare for handover by determining flight-related information such as path, handover duration, and serving base station identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UAV reports detailed flight path information including positioning points, flight speed, and altitude, then the base station can accurately determine flight-related information for handover preparation, but the data transmission amount and energy consumption increase
Solution Approach 1:
The patent applies preliminary action by having the UAV report flight path information in advance before handover is needed. The UAV determines content of flight path information including positioning points, flight speed, and altitude, then reports this information to the base station proactively. This allows the base station to determine flight-related information and prepare for handover ahead of time, reducing the need for frequent real-time updates during actual handover transitions, thereby lowering overall energy consumption while maintaining accurate flight path tracking
2Reliability
If the UAV reports complete flight path information frequently, then the base station can maintain accurate tracking of UAV trajectory, but the network data transmission load increases
Solution Approach 1:
The patent applies local quality by having the UAV selectively report different types of flight path information based on what is locally relevant to the current base station. The UAV determines content of flight path information that is specific to the serving base station's needs, such as positioning points and trajectory data relevant to that particular base station's coverage area. This selective reporting reduces unnecessary data transmission while maintaining reliable tracking within each local network segment
Solution Approach 2:
The patent applies segmentation by dividing the flight path information reporting into segments corresponding to different base stations or coverage areas. Instead of reporting complete flight path data to all base stations, the UAV segments the information reporting based on which base station is currently serving it or which base stations are potential handover targets. This segmentation reduces overall network data transmission volume while maintaining reliable tracking through coordinated reporting to multiple base stations
Data Source
AI summary
A method for determining information includes: receiving flight path information of an unmanned aerial vehicle (UAV) reported by the UAV, wherein content of the flight path information includes at least one of: a path positioning point of the UAV, a flight speed of the UAV, a flight altitude of the UAV, a reporting time of the flight path information of the UAV, or a position and altitude of the UAV when the flight path information of the UAV is reported; and determining flight-related information according to the flight path information of the UAV, wherein the flight-related information includes at least one of a flight path of the UAV, an identification of a serving base station to which the UAV is to be handed over, or a handover duration; wherein the flight path information is carried by UE information response field of radio resource control (RRC) signaling.