Received Signal Power Prediction with Dynamic Obstacle Modeling
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Solution Overview
Problem
Existing technologies struggle to predict received signal power of communication terminals in dynamic environments where moving objects block radio waves, making accurate predictions difficult.
Innovation Solution
A received signal power prediction system that includes a terminal information acquisition unit, a terminal position prediction unit, an estimated value acquisition unit, and a received signal power prediction unit, utilizing time-series data and static environment information to forecast signal power considering dynamic changes and obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If received signal power prediction is performed using past measured values in static environments, then prediction accuracy is improved, but the system fails to handle dynamic environments with moving objects
Solution Approach 1:
The patent applies dynamics by transitioning from static environment assumptions to dynamic environment handling. The system now predicts terminal position at future time points and incorporates moving objects as obstacles in the prediction model, enabling accurate signal power prediction in dynamic environments where both the terminal and obstacles are in motion
Solution Approach 2:
The patent applies preliminary action by predicting the terminal's future position before actual signal measurement occurs. The system calculates the predicted position at time T based on current position and movement information, then uses this predicted position to estimate signal power, effectively preparing the prediction model in advance for future conditions
2Measurement precision
If moving objects are considered in signal power prediction, then prediction accuracy in dynamic environments is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the prediction system into distinct functional modules: terminal information acquisition unit, terminal position prediction unit, estimated value acquisition unit, and received signal power prediction unit. Each module handles a specific aspect of the prediction process, making the complex system more manageable and easier to implement
Solution Approach 2:
The patent applies the intermediary principle by introducing a predicted position as an intermediate parameter. Instead of directly modeling complex interactions between moving terminal and obstacles, the system uses the predicted position as a mediator to simplify the signal power estimation process, reducing computational complexity while maintaining accuracy
Data Source
AI summary
A received signal power prediction system predicts received signal power of a communication terminal after a predetermined period has elapsed. The received signal power prediction system includes a terminal information acquisition unit configured to acquire an actually measured value of received signal power of the communication terminal and a position of the communication terminal; a terminal position prediction unit configured to predict a predicted position of the communication terminal after the predetermined period has elapsed based on the position of the communication terminal; an estimated value acquisition unit configured to acquire an estimated value of received signal power at the predicted position of the communication terminal; and a received signal power prediction unit configured to predict the received signal power of the communication terminal after the predetermined period has elapsed using the actually measured value of the received signal power and the estimated value of the received signal power.