Communication Control Device for Stratospheric Base Station Handover
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Solution Overview
Problem
The communication quality in stratospheric wireless communication systems deteriorates due to the scarcity of wireless resources, as the coverage area of flying base stations is extensive, leading to tight radio resources and reduced overall communication speed.
Innovation Solution
A communication control apparatus that handovers user terminals with poor wireless quality to adjacent cells, either formed by other flying bodies or ground-based wireless base stations, optimizing radio resources by offloading traffic and determining offload targets based on PRB usage rates and MCS thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If flying base stations are deployed to provide extensive coverage area, then the coverage area is improved, but the radio resources become tight and communication quality deteriorates
Solution Approach 1:
The system segments the coverage area into multiple cells, each served by a different flying base station or ground base station. User terminals are dynamically assigned to specific cells based on resource conditions, dividing the large coverage area into manageable segments that can be independently resource-managed
Solution Approach 2:
A resource management device acts as an intermediary between flying base stations and user terminals. This mediator collects resource usage information from multiple base stations, determines optimal cell assignments, and controls handovers to balance load and improve overall communication quality across the extensive coverage area
2Quantity of substance
If more user terminals are served in the same cell, then the network capacity is improved, but the radio resources become scarce and overall communication speed reduces
Solution Approach 1:
When a cell becomes congested with too many user terminals, the system segments the user base by performing handovers to adjacent cells. This distributes the quantity of user terminals across multiple cells, preventing any single cell from becoming overloaded and maintaining overall communication speed
Solution Approach 2:
The system dynamically adjusts the number of user terminals served in each cell based on real-time resource conditions. Base stations can flexibly accept or reject new terminal connections, and existing terminals can be handovered to different cells, creating a dynamic balance between network capacity and communication speed
Data Source
AI summary
Provided is a communication control apparatus for controlling communication of a flying body for forming a cell by irradiating a beam toward the ground to provide wireless communication service for a user terminal in the cell. The communication control apparatus comprises: a determination unit for determining a user terminal of an offload target to be offloaded and a cell of an offload destination, based on a neighbor cell list of the cell of the flying body, a frequency priority list in which priorities are each associated with each of a plurality of frequencies, a radio resource usage rate of each of the plurality of user terminals that exists in the cell of the flying body, and an MCS of each of the plurality of user terminals; and a control unit for causing the user terminal of the offload target to be handed over to the cell of the offload destination.