Antenna Sensor Interference Mitigation for Radar Emissions
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Solution Overview
Problem
Wireless networks face interference from external sources like radar emissions due to out-of-band emissions, which can overwhelm signal processing equipment and reduce network performance, especially in high-density antenna configurations like FD MIMO or Massive MIMO where control over such emissions is limited.
Innovation Solution
Incorporating sensors on antennas to detect radar emissions and a controller to deactivate signal transmission when interference is detected, ensuring reactivation only when the interference has passed, thereby mitigating signal interference and protecting equipment from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors are added to detect radar emissions, then interference mitigation capability is improved, but device complexity increases
Solution Approach 1:
The system divides the antenna structure into multiple segments, each equipped with its own sensors and control mechanisms. This allows localized detection and response to radar emissions, improving interference mitigation while keeping individual sensor units relatively simple
Solution Approach 2:
Sensors are positioned to detect radar emissions before they reach the antenna elements. The system takes preliminary action by detecting the presence of external signals and preemptively adjusting transmission levels or frequencies to avoid interference
2Reliability
If signal transmission is deactivated when interference is detected, then equipment protection is improved, but network productivity decreases
Solution Approach 1:
Instead of continuous transmission shutdown, the system uses periodic sensing and间歇性 (intermittent) transmission adjustments. Transmission is deactivated only during periods when radar emissions are detected, allowing continuous operation during normal conditions
Solution Approach 2:
The system implements a feedback mechanism where sensors continuously monitor for radar emissions and provide real-time information to the controller. This closed-loop control allows dynamic adjustment of transmission levels, protecting equipment from damaging signals while maintaining productivity during safe operating conditions
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 effectively reduces interference between wireless network signals and external radar emissions, enhancing network performance and protecting signal processing equipment by dynamically controlling signal transmission based on detected interference.
Implementation Method 1
The antenna may be configured with one or more sensors, also referred to herein as signal detectors, that are configured to detect when a signal is directed towards the antenna that may potentially cause and/or encounter interference
Data Source
AI summary
Mitigation of interference between wireless network signals and signals emitted from sources external to the wireless network are disclosed. The wireless network signals may include out-of-band emissions that create interference with the signals emitted from the external source. To mitigate the interference, an antenna is provided with sensors configured to detect when a signal is directed at the antenna from the external source. A controller is configured to activate/deactivate signal transmission from the antenna based on feedback from the sensors in order to mitigate interference with the signal emitted from the external source. The sensors may be configured to detect radar emissions or other types of signal emissions.