UAV Flight Route Delivery Through RRC Connection Resumption
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Solution Overview
Problem
Current UAV systems face challenges in acquiring a flight route from a UAV management system, particularly in inactive states, where the UAV needs to resume an RRC connection to access network equipment to receive flight path information.
Innovation Solution
The method involves the UAV sending an RRC connection resumption request to access network equipment, which then provides the flight path information, either during the resumption process or after the connection is resumed, allowing the UAV to acquire its flight path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UAV remains in inactive state to conserve energy, then energy consumption is reduced, but the UAV cannot acquire flight path information from the management system
Solution Approach 1:
The access network equipment stores flight path information in advance before the UAV needs it. When the UAV sends an RRC connection resumption request, the information is already available at the access network equipment, eliminating the need for the UAV to activate fully and contact the management system, thus preserving energy while ensuring information availability
Solution Approach 2:
The access network equipment acts as an intermediary between the UAV management system and the UAV. It pre-acquires and stores flight path information from the management system, then provides this information to the UAV when the UAV resumes connection, serving as a buffer that resolves the conflict between energy conservation and information access
2Loss of information
If the UAV activates RRC connection to acquire flight path information, then flight path information is obtained, but energy consumption increases and communication overhead increases
Solution Approach 1:
Flight path information is prepared and stored in advance at the access network equipment before the UAV needs to resume connection. This preliminary preparation eliminates the need for the UAV to establish full communication channels with the management system, reducing energy consumption while ensuring information availability
Solution Approach 2:
The access network equipment serves itself by storing flight path information locally, eliminating the need for the UAV to request and receive this information from the management system through energy-intensive communication channels. The system serves the UAV's information needs through the already-prepared local storage
3Loss of information
If the UAV establishes RRC connection to receive flight path information, then complete information is obtained, but communication overhead and system complexity increase
Solution Approach 1:
The flight path information is extracted from the management system communication flow and stored separately at the access network equipment. This extraction allows the information to be delivered through the simplified RRC connection resumption process rather than requiring complex management system communication protocols
Solution Approach 2:
The access network equipment serves as an intermediary that decouples the complex management system communication from the simple RRC connection process. It acquires information from the management system through existing protocols, stores it locally, then delivers it through the simplified RRC signaling, reducing overall system complexity
Data Source
AI summary
A method for providing a flight route to an unmanned aerial vehicle, includes: receiving, by first access network equipment, a radio resource control (RRC) connection resumption request sent by the UAV in an inactive state; and sending, by the first access network equipment, flight path information of the UAV to the UAV.