Adaptive Antenna Array Signal Reception Using Simplified Gradient Method
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Solution Overview
Problem
In mobile communication systems, existing technologies face challenges in minimizing signal distortion due to fading phenomena, particularly in wireless channels, which affects data transmission rates and system performance.
Innovation Solution
The implementation of a simplified gradient method (SGM) for calculating reception beam weights in Adaptive Antenna Array technology reduces the number of calculations required for generating reception beams, improving signal reception and system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional beam weight calculation methods are used in Adaptive Antenna Array technology, then signal reception quality can be maintained, but computational complexity increases and calculation time extends
Solution Approach 1:
The patent changes the calculation parameters by using simplified gradient descent methods with reduced iteration steps and optimized weight update formulas. This allows the system to achieve acceptable signal reception quality while significantly reducing computational complexity compared to conventional beam weight calculation methods
Solution Approach 2:
The patent applies partial action by using a reduced number of iteration steps in the gradient descent algorithm and selecting only the most significant calculation components. This partial approach maintains adequate reception quality while reducing the overall computational burden
2Measurement precision
If conventional beam weight calculation methods are used in Adaptive Antenna Array technology, then signal reception quality can be maintained, but calculation time increases
Solution Approach 1:
The patent modifies calculation parameters by reducing the number of iteration steps and optimizing the gradient descent update rules. This enables faster calculation time while maintaining sufficient signal reception quality for practical applications
Solution Approach 2:
The patent performs preliminary actions by pre-calculating certain matrix components and storing them for reuse. This preprocessing reduces the computational work required during actual beam weight calculation, thereby reducing calculation time
3Productivity
If Adaptive Antenna Array technology is implemented, then data transmission rate increases, but system complexity increases
Solution Approach 1:
The patent simplifies system parameters by using reduced-rank matrix operations and optimized gradient descent algorithms. This maintains the data transmission rate enhancement benefits of AAA technology while reducing the overall system complexity through more efficient computational approaches
Solution Approach 2:
The patent segments the complex AAA system into modular components: signal reception module, simplified gradient calculation module, beam weight update module, and signal combination module. This segmentation makes the system more manageable and reduces implementation complexity while preserving the throughput benefits
Data Source
AI summary
A method for receiving a signal from a radio unit in a base station having at least one reception antenna is disclosed. The method includes receiving a reception signal via the reception antenna, and generating an output signal using the reception signal and a reception beam weight for a previous time; calculating a cost function using a desired reception signal transmitted from the radio unit among the reception signal and the generated output signal; calculating a trace vector using the calculated cost function and the reception signal; updating the reception beam weight using the trace vector for a next time; and generating a reception beam by applying the updated reception beam weight.