Adaptive Wireless Signal Detection via Channel Rate Switching
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Solution Overview
Problem
Existing wireless communication systems face challenges in detecting transmission signals effectively due to varying channel change rates, requiring adaptive reception schemes between coherent and non-coherent methods based on channel conditions.
Innovation Solution
A reception device and method that utilize a transceiver, first and second correlators, and a control unit to detect transmission signals by determining the channel change rate, switching between coherent and non-coherent reception schemes, and applying a Fast Hadamard Transform (FHT) structure to optimize signal detection based on channel environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a coherent reception scheme is used, then measurement precision is improved, but reliability deteriorates in high channel change rate environments
Solution Approach 1:
The patent implements dynamic switching between coherent and non-coherent reception schemes based on detected channel change rates. The system adapts its reception mode in real-time, transitioning from coherent to non-coherent when channel conditions deteriorate, thereby maintaining both measurement precision and reliability across varying channel environments.
Solution Approach 2:
The system changes the reception scheme parameter based on channel change rate thresholds. When the channel change rate exceeds a predetermined threshold, the system switches from coherent to non-coherent reception, effectively adjusting the detection parameter to match current channel conditions and resolve the contradiction between precision and reliability.
2Reliability
If a non-coherent reception scheme is used, then reliability is improved in high channel change rate environments, but measurement precision deteriorates
Solution Approach 1:
The system dynamically selects between non-coherent and coherent reception schemes based on real-time channel change rate detection. When channel conditions improve (low change rate), the system transitions to coherent reception to maximize measurement precision while maintaining reliability through the adaptive decision framework.
Solution Approach 2:
The reception scheme parameter is changed based on channel conditions. The system switches from non-coherent to coherent reception when channel change rates fall below a threshold, thereby optimizing measurement precision while the adaptive mechanism ensures reliability is maintained through appropriate scheme selection.
3Adaptability or versatility
If adaptive reception scheme switching is implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the reception device into distinct functional modules: a channel change rate detector, a decision unit that compares detected rates against thresholds, and separate coherent/non-coherent reception pathways. This modular segmentation enables adaptability while managing complexity through organized functional decomposition.
Solution Approach 2:
The reception device incorporates multi-functional correlators that can operate in both coherent and non-coherent modes. By designing universal processing elements that perform multiple functions based on mode selection, the system achieves high adaptability without proportionally increasing overall device complexity.
Data Source
AI summary
The present invention relates to a device and a method for detecting a transmission signal in a wireless communication system, and a reception device in a wireless communication system comprises: a transceiver for receiving a signal from a transmitting end; a first correlator for performing a first correlation and outputting a real part among the results of the first correlation; a second correlator for performing a second correlation and outputting an imaginary part among the results of the second correlation; and a control unit for controlling the first correlator and the second correlator on the basis of a channel change rate so as to detect a transmission signal.