Wireless Device Signal Segmentation for Interference Detection
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Solution Overview
Problem
Current wireless communication systems face difficulties in accurately detecting the distribution of signal intensities across a broad bandwidth due to limitations in Analog-to-Digital Converter (ADC) and filter bandwidths, making it challenging to identify interference signals and their disappearance during signal reception.
Innovation Solution
A wireless communication device with multiple antennas and processing circuitry that segments received signals into elements defined by time width and bandwidth, measures signal intensities, selects optimal antennas based on intensity comparisons, and analyzes signal distributions to determine the identity of signal sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If time-division scan is used to sense broad band, then bandwidth coverage is improved, but detection accuracy and processing complexity deteriorate
Solution Approach 1:
The patent segments the broad bandwidth into multiple sub-bands that can be processed simultaneously by parallel signal processing paths. Each sub-band is processed independently with its own ADC and filter, allowing the system to cover a broad bandwidth while maintaining detection accuracy in each sub-band. The results from all sub-bands are then combined to achieve complete broad-band coverage without the need for time-division scanning.
2Adaptability or versatility
If time-division scan is used to sense broad band, then bandwidth coverage is improved, but processing load increases
Solution Approach 1:
The patent merges multiple narrowband processing paths into a unified broad-band processing architecture. Instead of sequentially processing each frequency band separately (which would require repeated signal acquisition and processing cycles), the system combines multiple parallel processing paths that operate simultaneously on different sub-bands. This merging approach achieves broad-band coverage while reducing the total processing load compared to sequential time-division scanning.
3Measurement precision
If high accuracy detection of whole signal distribution is performed, then measurement precision is improved, but processing complexity increases
Solution Approach 1:
The patent applies segmentation to divide the complex task of detecting the entire signal distribution into smaller, manageable sub-tasks. Each processing path independently detects signal characteristics within its assigned sub-band, and these partial results are then integrated to form the complete signal distribution map. This segmented approach maintains high detection accuracy across the entire bandwidth while reducing the processing complexity of each individual task.
Data Source
AI summary
According to one embodiment, a wireless communication device includes a receiver configured to receive signals via a plurality of antennas and processing circuitry configured to segment each of signals received by a plurality of antennas into a plurality of elements each defined by a time width and a bandwidth, and measure signal intensities of the elements or groups into which the plurality of elements are divided; select one of the plurality of antennas per element or per group by comparing the signal intensities between the plurality of antennas; and analyze a distribution of the selected antennas to determine an identity of a signal source of the signals.