Interference Profile Library for Adaptive Narrowband Suppression
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Solution Overview
Problem
Interference from unexpected wireless sources negatively impacts communication systems, leading to lower throughput, dropped calls, and traffic congestion, which existing methods like adding communication nodes or antenna steering fail to adequately address.
Innovation Solution
A system and method for multiple channel adaptive filtering or interference suppression in communication systems, utilizing an adaptive front end module to detect and mitigate narrowband interference by filtering out unwanted signals, and identifying and reporting interferers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more communication nodes are added to address interference, then system coverage is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and removes the interfering narrowband signals from the wideband communication signal using adaptive filtering techniques. The interference suppression module identifies and extracts unwanted interference components, then subtracts them from the received signal, thereby mitigating interference without adding more communication nodes.
Solution Approach 2:
The patent introduces an adaptive front end module as an intermediary between the antenna and the main communication system. This module includes an interference suppression module that acts as a mediator to process the received signal, separating desired wideband signals from unwanted narrowband interference before further processing.
2Object-affected harmful factors
If antenna steering techniques are used to avoid interferers, then interference is reduced, but system adaptability and coverage are limited
Solution Approach 1:
The patent implements dynamic interference suppression by continuously adapting the filter parameters based on the received signal characteristics. The adaptive front end module dynamically adjusts its filtering parameters in real-time to track and suppress varying interference patterns, providing both interference reduction and system adaptability.
Solution Approach 2:
The patent changes the parameters of the adaptive filter to match the characteristics of the interfering signals. By adjusting filter coefficients, bandwidth, and other parameters based on detected interference properties, the system can effectively suppress different types of interference without physically reconfiguring the antenna system.
3Reliability
If adaptive filtering is applied to suppress interference, then signal quality is improved, but processing complexity increases
Solution Approach 1:
The patent segments the signal processing into distinct functional modules: an adaptive front end module with interference suppression, a main communication processing module, and an optional interference identification module. This segmentation allows the complex adaptive filtering to be performed in a dedicated module, simplifying the overall system architecture and making the processing complexity manageable.
Data Source
AI summary
A system includes a method for detecting a signal interference in a communication signal of a wireless communication system. An identified source of the signal interference is determined according to an interference profile of a plurality of interference profiles associated with an interference profile library having information that approximates characteristics of the signal interference. The signal interference of the communication signal is mitigated according to an interference parameter associated with the identified source by filtering the communication signal according to the interference parameter.