Beamforming Apparatus Using Acceleration Sensor for Position Tracking
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Solution Overview
Problem
Existing beamforming technologies require significant computation time and network load when adapting to changes in the position of a terminal relative to a base station, especially in real-time communication systems.
Innovation Solution
A beamforming apparatus and method that utilizes an acceleration sensor in a mobile terminal to detect position changes and adjust beamforming accordingly, reducing computation time by storing reference position values and updating beamforming settings based on detected changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is performed by calculating AOA, phase, and intensity of signals in real time, then communication efficiency is improved, but computation time increases and network load increases
Solution Approach 1:
The patent stores reference position values of the terminal in advance. When the terminal moves, the system retrieves pre-stored reference data instead of performing complete real-time calculations, significantly reducing computation time while maintaining beamforming accuracy.
Solution Approach 2:
The patent divides the beamforming process into two segments: initial comprehensive calculation using AOA, phase, and intensity to establish reference position values, and subsequent simplified adjustments based on position changes. This segmentation reduces real-time computational burden.
2Reliability
If beamforming is performed by calculating AOA, phase, and intensity of signals in real time, then communication efficiency is improved, but communication load increases
Solution Approach 1:
Reference position values are stored in advance during initial setup or previous communications. When the terminal moves, the system uses these pre-stored references to quickly determine beamforming adjustments, reducing the need for continuous real-time signal calculations and thus lowering network load.
Solution Approach 2:
The patent creates a copy of reference position information that can be reused for multiple beamforming adjustments. Instead of recalculating from raw signals each time, the system uses copied reference data, reducing communication overhead between base stations.
3Measurement precision
If complex algorithms are used for real-time beamforming calculation, then beamforming accuracy is improved, but device complexity increases
Solution Approach 1:
Complex algorithms are executed once or periodically to establish reference position values, rather than continuously. This preliminary calculation achieves high accuracy while avoiding the need for continuously complex computations, reducing device complexity for real-time operations.
Solution Approach 2:
The patent dynamically adjusts the complexity of beamforming calculations based on terminal movement. When the terminal is stationary or moves minimally, simple reference-based adjustments are used. When movement is significant, more comprehensive calculations are performed, optimizing the balance between accuracy and complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables efficient and real-time beamforming with reduced computational load and network load, maintaining optimal communication efficiency even with position changes of the terminal.
Implementation Method 1
mounting an acceleration sensor in a terminal and by performing the beamforming according to the position change of the terminal
Data Source
AI summary
Disclosed are a beamforming method and a beamforming apparatus for an adaptive antenna. A mobile terminal equipped with the adaptive antenna is initialized, a base station to transceive a signal with the mobile terminal is searched, beamforming is performed based on the searched base station, a reference position value of the mobile terminal is stored, and the beamforming of the antenna is adjusted if a sensing module in the mobile terminal detects position change of the mobile terminal based on a reference position. A changed position of the mobile terminal is stored as the reference position value, so that the position of the terminal is detected based on the reference position in real time, thereby simply and accurately performing the beamforming.