UAV Tracking Area List Configuration via Time Information
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Solution Overview
Problem
Conventional communication systems for unmanned aerial vehicles (UAVs) experience increased signaling due to frequent updates of tracking area lists, which are not optimized for the UAV's moving path, leading to inefficient resource usage and power consumption.
Innovation Solution
A communication apparatus and method that transmit time information associated with permission to update the tracking area list, allowing the network to configure a list based on the UAV's moving path, reducing unnecessary signaling and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tracking area list is updated frequently to ensure coverage for UAVs, then the reliability of tracking is improved, but the signaling overhead and resource consumption increase
Solution Approach 1:
The network node performs preliminary actions by determining the UAV's moving path in advance and proactively updating the tracking area list before the UAV leaves the current tracking areas. This prevents the need for frequent reactive updates and reduces signaling overhead while maintaining reliable tracking coverage throughout the UAV's flight path
2Reliability
If the tracking area list is updated frequently to ensure coverage for UAVs, then the reliability of tracking is improved, but the signaling overhead increases
Solution Approach 1:
The network node determines the UAV's moving path in advance and proactively updates the tracking area list before the UAV leaves current tracking areas. This preliminary action reduces the need for frequent reactive updates and associated signaling overhead while maintaining reliable tracking coverage
Solution Approach 2:
The system implements feedback mechanisms where the network node receives moving path information from the UAV and uses this feedback to optimize tracking area list updates. This feedback loop enables the network to make informed decisions about when and how to update tracking areas, reducing unnecessary signaling while ensuring coverage
3Device complexity
If the tracking area list is configured without considering the UAV's moving path, then the device complexity is reduced, but the productivity of resource usage decreases
Solution Approach 1:
The tracking area list configuration transitions from a static approach to a dynamic one that adapts to the UAV's moving path. The network node determines the moving path and dynamically updates the tracking area list accordingly, optimizing resource usage efficiency while maintaining manageable configuration complexity through automated path-based updates
Data Source
AI summary
A communication apparatus includes: a memory storing a program; and one or more processors configured to execute the program to: receive, from a network, a non-access stratum, NAS, message including time information for transmission of information used for configuring a tracking area, TA, list; obtain the time information included in the NAS message; and transmit, to the network, a message including the information used for configuring the TA list based on the time information.