UAV Handover Signaling With Flight Path Transfer Between Base Stations
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Solution Overview
Problem
There is no effective solution for obtaining flight path information of unmanned aerial vehicles (UAVs) for mobile cellular networks to provide services, as base stations need this information to plan cell coverage and offer services effectively.
Innovation Solution
During the handover process, a source base station sends flight path information to a target base station through X2 or S1 interfaces using specific signaling elements like RRC context, access stratum context, or transparent container information elements, ensuring the target base station can obtain and utilize this information for better service planning and provision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mobile cellular networks want to provide services for UAVs, then service capability is improved, but the ability to obtain flight path information is insufficient
Solution Approach 1:
The source base station performs preliminary action by obtaining and packaging flight path information before the handover process. This information is prepared in advance and included in the handover request signaling, ensuring that the target base station receives complete flight path data when the UAV handover is initiated, thus resolving the information loss problem while enabling service provision
2Ease of operation
If base stations need flight path information for service planning, then service quality is improved, but there is no effective solution for obtaining this information
Solution Approach 1:
The handover request signaling acts as an intermediary that carries flight path information from the source base station to the target base station. This intermediary mechanism leverages the existing handover signaling framework, avoiding the need for a separate complex information acquisition system, thus improving service planning capability without significantly increasing device complexity
3Reliability
If flight path information is transmitted during handover, then target base station can plan cell coverage effectively, but requires modification of existing signaling protocols
Solution Approach 1:
The flight path information is merged with the existing handover request signaling structure. Instead of creating a separate signaling protocol, the invention combines the flight path data with the standard handover signaling messages (such as RRC context, access stratum context, or transparent container information elements), thereby improving cell coverage planning reliability while minimizing increases to protocol complexity
Data Source
AI summary
A method and device for transmitting flight information. The method comprises: generating switching request related signaling, the switching request related signaling carrying flight path information of an unmanned aerial vehicle; and sending the switching request related signaling to a target base station. The method may also be a method applied to an MME side, and comprises: receiving switching demand signaling sent by a source base station, the switching demand signaling carrying flight path information of an unmanned aerial vehicle; and sending second switching request signaling to a target base station, the second switching request signaling carrying flight path information of an unmanned aerial vehicle.