Wireless Base Station Interference Control Using Adaptive Beamforming
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Solution Overview
Problem
Mutual interference among signals emitted by multiple wireless access points in wireless distribution systems affects overall signal reception quality.
Innovation Solution
A method and device using a processor with embedded AI to detect interference types and generate control signals for adjusting signal frequency, radiation pattern, or range to avoid interference, employing techniques like beamforming and RSSI/CSI location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless access points are deployed to enhance network coverage and capacity, then communication throughput and network capacity are improved, but mutual signal interference increases and signal reception quality deteriorates
Solution Approach 1:
The patent dynamically adjusts transmission parameters including frequency selection, radiation pattern orientation, and transmission range of each access point to minimize mutual interference while maintaining network capacity and throughput
2Area of stationary object
If wireless access points are positioned to maximize signal coverage, then network coverage area is improved, but interference between adjacent access points increases
Solution Approach 1:
The patent applies different transmission characteristics to different spatial regions by adjusting the radiation pattern of each access point locally, directing signals toward areas needing coverage while avoiding regions where interference would occur
Solution Approach 2:
The system dynamically adjusts transmission parameters based on real-time detection of interference conditions, allowing access points to adapt their coverage patterns dynamically rather than using fixed configurations
3Length of stationary object
If transmission power is increased to extend signal range, then coverage range is improved, but interference range and harmful effects increase
Solution Approach 1:
The patent optimizes transmission power as one of multiple parameters, adjusting it dynamically based on detected interference levels to achieve the minimum necessary power for coverage while minimizing interference range
Data Source
AI summary
A method and device for resisting signal interference, comprising a wireless base station receives an interference signal and determines whether the interference signal is a packet interference signal, bandwidth interference signal, or multi-interference signal. Corresponding to the packet interference signal, a first control signal is generated; corresponding to the bandwidth interference signal, a second control signal is generated; or corresponding to the multi-interference signal, a third control signal is generated. Finally, based on the first control signal, the second control signal, or the third control signal, the frequency, radiation pattern, or range of the transmitted signal is adjusted to avoid the interference signal.