Overlapping Terrestrial–Non-Terrestrial Connection Change Restriction
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Solution Overview
Problem
In communication systems with overlapping terrestrial and non-terrestrial networks, frequent changes of location registration areas and associated area change notifications occur when a communication device switches between terrestrial and non-terrestrial base stations, leading to inefficiencies.
Innovation Solution
A communication control apparatus that identifies overlapping areas of terrestrial and non-terrestrial location registration areas, detects connections, and restricts changes to different base stations while retaining connection history, thereby preventing frequent area changes and notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a communication device switches between terrestrial and non-terrestrial base stations in overlapping areas, then connection flexibility and network coverage are improved, but frequent location registration area changes and area change notifications occur
Solution Approach 1:
The patent applies local quality by assigning different location registration area IDs to overlapping terrestrial and non-terrestrial cells. When a communication device is in an overlapping area, the system selectively applies different location registration area configurations based on the specific cell type and location, preventing unnecessary location updates while maintaining connection flexibility.
Solution Approach 2:
The patent implements dynamics by dynamically determining whether to update the location registration area based on real-time conditions. The system checks whether the communication device is in an overlapping area and whether the cell is a non-terrestrial cell before deciding to update the location registration area ID, thereby adapting the location update behavior to current network conditions and reducing unnecessary notifications.
2Adaptability or versatility
If location registration area updates are performed frequently in overlapping areas, then connection switching between terrestrial and non-terrestrial networks is enabled, but network overhead and signaling load increase
Solution Approach 1:
The patent reduces network overhead by applying local quality differentiation. Non-terrestrial cells in overlapping areas are configured with distinct location registration area IDs compared to terrestrial cells, allowing the system to selectively trigger location updates only when necessary for non-terrestrial connections, thereby reducing overall signaling load while maintaining connection switching capability.
Solution Approach 2:
The system dynamically adjusts location update behavior based on cell type and location. By checking whether the current cell is a non-terrestrial cell in an overlapping area before updating the location registration area ID, the system optimizes the balance between connection switching capability and network overhead, performing updates only when truly necessary.
Data Source
AI summary
A communication control apparatus includes: an overlapping area identification unit that identifies an overlapping area of a first location registration area including at least one terrestrial communication cell provided on the ground by a terrestrial base station installed on the ground and a second location registration area including at least one non-terrestrial communication cell provided on the ground by a flying non-terrestrial base station; a connection detection unit that detects that a communication device in the overlapping area is connected to one base station of the terrestrial base station and the non-terrestrial base station; and a connection change restriction unit that restricts change of connection destination of the communication device from the one base station to the other base station of the terrestrial base station and the non-terrestrial base station while the communication device is in the overlapping area.