Earth-Moving Cell Trajectory Prediction for Stable UE Measurement
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Solution Overview
Problem
Existing communication systems struggle to effectively support terminals served by earth-moving cells, which require advanced prediction and adaptation to dynamic satellite positions and trajectories.
Innovation Solution
Terminals utilize satellite orbital information to predict the reference position trajectory of earth-moving cells, enabling efficient communication by adapting to the changing cell positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals use traditional communication methods without orbital information prediction, then the system structure is simpler, but communication reliability and stability in dynamic earth-moving cell environments deteriorate
Solution Approach 1:
The terminal performs preliminary actions by predicting the future trajectory of the earth-moving cell using provided orbital information before actual communication occurs. This allows the terminal to proactively adjust its communication parameters and maintain optimal connection as the cell moves, thereby improving reliability without requiring complex real-time reactions during movement.
Solution Approach 2:
The system implements feedback mechanisms where the terminal uses provided satellite orbital information to continuously update its prediction of cell position and trajectory. This feedback loop allows the terminal to adapt its communication strategy based on actual cell movement patterns, improving communication stability while managing complexity through iterative refinement rather than complex one-time calculations.
2Stability of the object's composition
If terminals do not predict earth-moving cell trajectories, then device complexity is lower, but service continuity and communication stability worsen due to dynamic position changes
Solution Approach 1:
The terminal calculates and stores the predicted trajectory of the earth-moving cell in advance using orbital information. This preliminary trajectory data allows the terminal to maintain stable communication expectations and adjust parameters smoothly as the cell moves, achieving communication stability through forward planning rather than complex real-time computation.
Solution Approach 2:
The system dynamically adapts the terminal's communication parameters based on the predicted trajectory and actual cell position. The terminal continuously updates its understanding of cell movement and adjusts transmission parameters accordingly, maintaining communication stability through controlled dynamic adaptation rather than static rigid protocols.
3Productivity
If the terminal does not utilize satellite orbital information for prediction, then the operation is simpler, but the ability to maintain service continuity in dynamic environments deteriorates
Solution Approach 1:
The patent introduces satellite orbital information as an intermediary element that bridges the terminal and the earth-moving cell. This intermediary data provides the terminal with a predictive model of cell position and trajectory, enabling the terminal to maintain service continuity by planning communication based on predicted movements rather than reacting to actual positions, thus improving productivity with minimal operational complexity increase.
Data Source
AI summary
One disclosure of the present specification provides a method by which a UE performs communication. The method comprises the steps of: receiving information on a satellite from a network, wherein the information on the satellite includes orbit information of the satellite and a reference location of a cell of the satellite, and the satellite serves the UE; calculating a beam angle of the satellite on the basis of the orbit information and the reference location; on the basis of the beam angle of the satellite being fixed, determining a trajectory of the reference location of the satellite on the basis of the calculated beam angle and the orbit information; and performing cell measurement on the basis of the trajectory of the reference location.