Dual Receiver Interference Detection in Wireless Devices
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Solution Overview
Problem
Current wireless communication devices face inefficiencies in detecting interference in the ISM band due to limited channel measurement capabilities and high time and power consumption, especially with low sampling rates that prevent simultaneous measurement of the entire bandwidth.
Innovation Solution
A wireless communications device with dual receivers, one for receiving Bluetooth or WLAN signals and another for UWB signals, utilizing a fast Fourier transform module to determine spectral characteristics and detect interference across the entire available communications bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the device performs multiple sequential measurements to detect interference across the entire ISM band, then the measurement coverage is improved, but the time consumption and power consumption increase significantly
Solution Approach 1:
The patent combines multiple channel measurements into a single simultaneous measurement by using the UWB receiver's high sampling rate capability. Instead of sequentially measuring each Bluetooth or WLAN channel separately, the system captures the entire ISM band spectrum at once, merging what would have been multiple time-separated operations into one concurrent operation.
Solution Approach 2:
The UWB receiver is utilized for a dual purpose: its primary function of receiving UWB signals and its secondary function of detecting interference in the ISM band. By leveraging the high sampling rate capability of the UWB receiver, the system can perform spectral analysis across the entire ISM band simultaneously, making the measurement process more efficient without requiring dedicated hardware for each function.
2Area of stationary object
If the device performs multiple sequential measurements to detect interference across the entire ISM band, then the measurement coverage is improved, but the power consumption increases
Solution Approach 1:
The patent combines multiple channel measurements into a single simultaneous measurement by using the UWB receiver's high sampling rate capability. Instead of sequentially measuring each Bluetooth or WLAN channel separately, the system captures the entire ISM band spectrum at once, merging what would have been multiple time-separated operations into one concurrent operation.
3Use of energy by moving object
If the device uses low sampling rates for channel measurements, then the power consumption is reduced, but the ability to measure the entire bandwidth simultaneously is lost
Solution Approach 1:
The UWB receiver is utilized for a dual purpose: its primary function of receiving UWB signals and its secondary function of detecting interference in the ISM band. By leveraging the high sampling rate capability of the UWB receiver, the system can perform spectral analysis across the entire ISM band simultaneously, making the measurement process more efficient without requiring dedicated hardware for each function.
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
Enables rapid and efficient detection of interference across the entire bandwidth, reducing time and power consumption while improving the reliability of interference identification.
Implementation Method 1
the second receiver is configured to determine spectral characteristics of the first wireless signal
Data Source
AI summary
A wireless communications device includes a first receiver and a second receiver. The first receiver is configured to receive a first wireless signal (such as a Bluetooth or WLAN signal), while the second receiver is configured to receive a second wireless signal (such as a UWB signal). In addition, the second receiver is configured to determine spectral characteristics of the first wireless signal. Based on these determined spectral characteristics, an interference detection module may identify interference in the first wireless signal.