Predictive 3D Cell Handover for Spatial Terminal Continuity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication technologies face challenges in providing high-quality services and ensuring communication reliability for terminal devices at any position in three-dimensional spaces such as the ground, sea surface, and air, particularly with the evolution of terminal devices like unmanned aerial vehicles and near-ground orbit aircraft.
Innovation Solution
A cell handover method that divides the service area into three-dimensional stereo cells, determining the first stereo cell based on the spatial terminal's position and predicting the second stereo cell based on future position information and a handover strategy, then sending a message to switch to the second cell before the terminal moves out of the first cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cell handover methods are used for spatial terminals, then the system structure remains simple, but communication reliability and service continuity deteriorate due to delayed handover detection and execution
Solution Approach 1:
The network device performs preliminary actions by predicting the future position of the spatial terminal and determining the target stereo cell in advance, before the terminal actually moves out of the current cell. This proactive handover preparation eliminates waiting time and ensures seamless communication handover, directly resolving the contradiction between reliability and time delay.
2Productivity
If spatial terminals move quickly in three-dimensional space, then service coverage area increases, but handover accuracy deteriorates due to rapid position changes
Solution Approach 1:
The system employs feedback mechanisms by continuously obtaining motion state information from spatial terminals and using this information to predict future positions. This closed-loop approach allows the network device to dynamically adjust handover decisions based on actual terminal movement, maintaining high handover accuracy even for rapidly moving terminals in three-dimensional space.
3Reliability
If cell handover is performed frequently for fast-moving terminals, then communication continuity is maintained, but system complexity increases due to multi-satellite coordination
Solution Approach 1:
The network device is designed with multi-functionality to handle various handover scenarios including intra-satellite and inter-satellite handovers. By integrating position prediction, target cell determination, and handover execution capabilities into a single versatile system, the patent reduces overall system complexity while maintaining communication continuity for fast-moving terminals.
Data Source
AI summary
A cell handover method and a cell handover device are provided. The method includes: a first stereo cell where a spatial terminal is located is determined based on first position information where the spatial terminal is located; a second stereo cell to be switched for the spatial terminal is determined based on second position information where the spatial terminal is located after a time period and a cell handover strategy; and a handover message is sent to the spatial terminal to indicate the spatial terminal to switch from the first stereo cell to the second stereo cell.