Wireless Interference Reduction via Adaptive Band Division
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Solution Overview
Problem
Existing wireless communication systems face challenges in reducing interference signals while maintaining frequency utilization efficiency, with current methods either failing to avoid interference shifts, reducing frequency utilization, or degrading transmission signal quality.
Innovation Solution
A wireless communication system that includes an interference estimation unit to identify interference signals, a feedback mechanism to adjust transmission signal division, and a band synthesis unit to synthesize sub-spectra, allowing partial superposition of interference and transmission signals to reduce interference while maintaining frequency efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the transmission signal frequency is shifted to avoid interference signals, then interference is reduced, but frequency utilization efficiency decreases
Solution Approach 1:
The transmission signal is divided into multiple frequency sub-bands, allowing selective transmission in interference-free portions of the spectrum while maintaining overall frequency utilization. The segmentation enables the system to transmit in available frequency slots rather than shifting the entire signal away from the interference band.
2Object-affected harmful factors
If the transmission signal is divided into multiple signals to avoid interference, then interference avoidance is achieved, but frequency utilization efficiency decreases
Solution Approach 1:
The system dynamically adjusts the division and allocation of frequency sub-bands based on real-time interference conditions. By making the signal division adaptive rather than static, the system can optimize frequency utilization according to actual interference patterns, transmitting in available bands while avoiding interfered portions.
3Object-affected harmful factors
If an interference avoidance technique is applied, then interference reduction is achieved, but transmission signal quality degrades
Solution Approach 1:
The system changes frequency parameters of the transmission signal by dividing it into multiple sub-bands with different frequency characteristics. This parameter change allows the signal to be transmitted in frequency regions free from interference, thereby maintaining signal quality while avoiding interference through frequency domain diversification.
Data Source
AI summary
A reception apparatus includes: an interference estimation unit configured to estimate a frequency band of an interference signal in a reception signal on which the interference signal having a narrower frequency band than that of a transmission signal transmitted by a transmission apparatus is superimposed; a feedback unit configured to feed back the frequency band of the interference signal estimated by the interference estimation unit to the transmission apparatus; and a band synthesis unit configured to synthesize a plurality of sub-spectra in a frequency band corresponding to a plurality of sub-spectra decomposed by the transmission apparatus, and a transmission apparatus includes: a band division control unit configured to perform control for determining a band in which a transmission signal is divided based on the frequency band of the interference signal fed back from the reception apparatus; and a band division unit configured to band-divide the transmission signal into a plurality of sub-spectra so that the interference signal and the sub-spectra is partially superimposed, based on the band determined by the band division control unit.