Wireless Packet Signal Combining for Repetitive Data Detection
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Solution Overview
Problem
Existing wireless data communication systems face challenges in detecting and extracting repetitive information from data packets.
Innovation Solution
The system combines samples of a data communication system to detect repetitive information from data packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data packets are detected in high SNR conditions, then the contents of data packets can be determined and compared to identify repetitive information, but this approach fails in low SNR conditions where time of arrival and packet contents are unknown
Solution Approach 1:
The patent combines multiple data packets into a single combined data stream by aligning and concatenating them. This merging process allows the system to treat multiple low-SNR packets as a unified signal, enabling repetitive information detection that would be impossible in individual packets. The combined stream maintains temporal relationships while aggregating signal energy, effectively transforming the detection problem from single-packet to multi-packet analysis.
Solution Approach 2:
The system performs preliminary signal processing steps including packet alignment, synchronization, and combination before attempting repetitive information detection. By preparing and aligning multiple packets in advance, the system creates optimal conditions for subsequent detection algorithms to identify repetitive patterns that would be invisible in individual low-SNR packets.
2Reliability
If repetitive information is detected in combined data packets, then detection is possible under poor SNR conditions, but the system complexity increases due to sample collection, grouping, and combination processes
Solution Approach 1:
The patent segments the data stream into individual data packets before combining them. This segmentation allows the system to process and align packets independently, then reassemble them into a combined stream for analysis. The segmentation approach simplifies the overall complexity by breaking down the complex task of detecting repetitive information in low-SNR conditions into manageable stages: packet identification, alignment, combination, and detection.
Solution Approach 2:
The system introduces an intermediary combined data stream that serves as a bridge between individual low-SNR packets and the final detection algorithm. This intermediary structure allows the system to leverage the repetitive nature of certain packets (such as headers or synchronization signals) to improve detection reliability without directly processing each individual packet through the full detection pipeline.
Data Source
AI summary
An apparatus for detecting repetitive information in data packets communicated between a first node and a second node over a wireless network, which includes a processing circuitry configured to: collect samples of a data communication signal transmitted between said first node and said second node over said wireless network at a plurality of respective times; group said collected samples into a plurality of sequences of samples; combine said plurality of sequences of samples into at least one united signal; and based on an analysis of said at least one united signal, provide a signal indicative of repetitive information in a plurality of data packets carried by said data communication signal.