Interference-Signal Removal for Zero-Power Terminal Data Recovery
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Solution Overview
Problem
Ensuring the security of data reported by zero-power terminals in communication systems is a challenge due to the lack of effective methods to protect against eavesdropping.
Innovation Solution
A communication method involving a first device receiving a wireless signal, obtaining data from a second device by removing an interference signal using associated first information, and a third device transmitting an interference signal to interfere with data reported by a second device, ensuring only authorized devices can decode the data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is transmitted directly from second device to first device without interference signal, then transmission simplicity is maintained, but data security deteriorates due to vulnerability to eavesdropping
Solution Approach 1:
The patent introduces a third device as an intermediary that generates and transmits an interference signal. This interference signal acts as a mediator between the second device (data transmitter) and the first device (data receiver), preventing direct eavesdropping while allowing the authorized first device to recover the original data through signal processing using first information.
Solution Approach 2:
The patent converts the harmful effect of signal interference into a beneficial security mechanism. By intentionally introducing an interference signal from the third device, the system creates a protected communication channel where unauthorized devices cannot decode the data, while the authorized first device can remove the interference using first information to recover the original data.
2Reliability
If an interference signal is introduced to protect data, then data security is improved, but signal processing complexity increases
Solution Approach 1:
The patent applies preliminary action by having the first device obtain first information in advance, before the actual data transmission occurs. This first information enables the first device to perform the complex signal processing operation of removing the interference signal and recovering the original data, thereby managing the processing complexity through advance preparation.
3Reliability
If interference signal is used to prevent eavesdropping, then security against unauthorized devices is improved, but legitimate data transmission fidelity may deteriorate
Solution Approach 1:
The third device acts as an intermediary that generates an interference signal with specific characteristics. This interference signal provides security to unauthorized devices while maintaining the ability of the authorized first device to remove it accurately using first information, thereby preserving data recovery fidelity.
Solution Approach 2:
The first device obtains first information in advance, which contains the necessary characteristics to accurately remove the interference signal. This preliminary acquisition of information ensures that when the data recovery operation is performed, the interference can be precisely eliminated without degrading the original data fidelity.
Data Source
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AI summary
The present disclosure relates to a communication method, a device, a computer-readable storage medium, a computer program product, and a computer program. The method includes: receiving, by a first device, a wireless signal; and obtaining, by the first device, data reported by a second device by removing an interference signal from the wireless signal according to first information, where the first information is associated with the interference signal.