UAV Network Selection for Flight Authorization Continuity
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face challenges in network connectivity and resource utilization during flight path authorization due to network capability limitations, leading to rejected flight requests and inefficient network resource usage.
Innovation Solution
A communication management method and system involving service management, policy management, and session management functions to determine and manage network capabilities for planned flight areas and times, enabling efficient redirection of UAVs to available network systems to avoid resource waste and ping-pong phenomena.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the unmanned aerial vehicle requests flight path authorization in a 5G system, then networked flight control is achieved, but the request may be rejected due to network capability limitations
Solution Approach 1:
The patent implements dynamic system selection by allowing the UAV to switch between 5G and 4G network systems based on real-time authorization outcomes. When 5G authorization is rejected, the system dynamically transitions to 4G network capability, ensuring continuous adaptability to available network resources rather than being fixed to a single system.
Solution Approach 2:
The patent changes the network parameter (system type) from fixed 5G to variable selection between 5G and 4G. By monitoring authorization rejection and changing the network parameter to an alternative system, the patent resolves the contradiction between achieving reliable authorization and adapting to network capability limitations.
2Productivity
If the unmanned aerial vehicle performs deregistration and EPS attachment to attempt flight path authorization again, then network resource utilization increases, but ping-pong phenomenon occurs causing unnecessary network requests
Solution Approach 1:
The patent performs preliminary judgment by evaluating whether the current network system can support flight path authorization before attempting registration. By assessing network capability in advance and selecting an appropriate system (5G or 4G) beforehand, the patent avoids unnecessary deregistration and reattachment cycles, preventing ping-pong phenomena while optimizing network resource utilization.
Solution Approach 2:
The patent implements feedback control by monitoring flight path authorization results and using this information to guide subsequent network selection decisions. When authorization is rejected in 5G, the system receives feedback and switches to 4G, avoiding repeated unsuccessful attempts and reducing time loss from unnecessary network requests.
Data Source
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AI summary
Embodiments of this application provide a communication management method, so that networked flight of an unmanned aerial vehicle can be efficiently and appropriately managed. The method includes: receiving a first message, where the first message includes network capability information of a plurality of systems, the plurality of systems include a system that can be selected by a terminal, the network capability information is information about a capability of the plurality of systems to provide a network service for the terminal in at least one of a first area and a first time range, the first area includes a planned flight area of the terminal, and the first time range includes a planned flight time range of the terminal; determining, based on the network capability information of the plurality of systems, whether the terminal can obtain the network service through a first system, where the first system is one or more of the plurality of systems; and sending first indication information, where the first indication information indicates whether the terminal can obtain the network service through the first system.