Characteristic Sequence Detection in Wireless Base Stations
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Solution Overview
Problem
Existing characteristic sequence detection methods in wireless communication systems face challenges in balancing false-detection and missed-detection probabilities, particularly in real-time scenarios where high false-detection rates can overwhelm true detections and increasing detection thresholds to lower false-detection probability often increases missed-detection probability.
Innovation Solution
A method and apparatus for detecting characteristic sequences in a wireless communication system that involves receiving and processing characteristic sequences by a receiving end base station, where candidate sequences are identified based on correlation values exceeding a preset threshold, and validated through frequency and ratio thresholds within a detection period, to reduce false detections without increasing missed-detections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection threshold is increased to lower the false-detection probability, then the false-detection probability is reduced, but the missed-detection probability increases
Solution Approach 1:
The patent segments the detection process into multiple independent detection stages rather than relying on a single threshold comparison. Each stage performs correlation detection and evaluates detection results separately, allowing the system to maintain lower thresholds in individual stages while achieving overall high reliability through the combined multi-stage evaluation process.
Solution Approach 2:
The patent implements periodic detection by dividing the detection process into multiple detection periods or stages, where characteristic sequences are detected repeatedly across different time intervals. This periodic approach allows the system to accumulate detection evidence over time, reducing both false-detection and missed-detection probabilities through temporal validation.
2Reliability
If the number of detection times is increased to improve detection reliability, then the detection reliability is improved, but the number of false detections increases
Solution Approach 1:
The patent implements feedback mechanisms where detection results from previous stages or time periods are fed into subsequent detection stages. The system uses feedback to adjust detection parameters, validate results, and distinguish between genuine characteristic sequences and false detections by comparing against historical detection patterns and expectations.
Solution Approach 2:
The patent performs preliminary actions by pre-establishing detection criteria, expected sequence patterns, and validation rules before the actual detection process. This preliminary preparation allows the system to quickly filter out false detections during multi-stage detection while maintaining high sensitivity for genuine characteristic sequences.
Data Source
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AI summary
Embodiments of the present disclosure provide a method and an apparatus for detecting a characteristic sequence in a wireless communication system. The method includes: receiving, by a receiving end base station, an original characteristic sequence periodically transmitted by a transmitting end base station; detecting out, by the receiving end base station, a candidate characteristic sequence meeting a preset condition from the original characteristic sequence; determining whether the candidate characteristic sequence is a valid characteristic sequence; and detecting whether there is an associated event based on a preset rule according to the detected valid characteristic sequence. In this way, it is solved the problem that it cannot be guaranteed that the number of characteristic sequences falsely detected is reduced without increasing the missed-detection probability in a scenario of larger number of detections in the prior art. It is guaranteed that the number of characteristic sequences falsely detected is reduced without increasing the missed-detection probability when the number of detections is larger, and thus the detection accuracy of distant interference is improved.