Wireless Sensing Channel-State Feedback for Clutter Suppression
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Solution Overview
Problem
The accuracy of wireless sensing needs to be improved, particularly in the presence of clutter that affects the received signal.
Innovation Solution
A wireless sensing method that involves obtaining and utilizing first information to indicate a sensing channel state, receiving reference signals, and sensing a target based on these signals to eliminate clutter, thereby enhancing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wireless sensing is performed using reference signals, then sensing capability is enabled, but sensing accuracy deteriorates due to clutter in the received signal
Solution Approach 1:
The receiver obtains first information indicating the sensing channel state before performing sensing operations. This preliminary acquisition of channel state information allows the system to compensate for clutter effects during the sensing process, thereby improving measurement precision without requiring additional hardware or signal resources
Solution Approach 2:
The system utilizes feedback from the sensing channel state (first information) to adjust and optimize the sensing process. By continuously monitoring and incorporating channel state feedback, the receiver can dynamically compensate for clutter interference and maintain high sensing accuracy in varying environmental conditions
2Productivity
If integrated sensing and communication is implemented, then spectrum efficiency is improved, but system complexity increases
Solution Approach 1:
The wireless communication system is designed to perform multiple functions simultaneously - both communication and sensing operations. By making the system universal, it can transmit communication signals that also serve as sensing reference signals, and process received signals for both communication decoding and sensing measurements, thereby improving spectrum efficiency without requiring separate dedicated systems
Solution Approach 2:
The patent merges sensing functions into the existing communication system framework. The sensing reference signals are integrated with communication signal structures, and the receiver combines communication signal processing chains with sensing measurement processes, reducing overall system complexity by eliminating redundant components while maintaining both communication and sensing capabilities
Data Source
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Figure 2
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AI summary
The present disclosure relates to a wireless sensing method and apparatus, a communication device, a communication system and a storage medium, the method being executable by a receiver. The method comprises: acquiring first information, the first information being used to indicate a sensing channel state; receiving a first reference signal sent by a transmitter 102; sensing a sensing target according to the first reference signal and the first information. In this way, clutter affecting sensing in a received signal of the first reference signal can be effectively eliminated on the basis of the sensing channel state, effectively improving the accuracy of sensing the sensing target.