Zero-Power Wireless Communication With Repetition Encoding
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Solution Overview
Problem
Zero-power devices suffer from poor data transmission performance, limiting their effectiveness in communication systems.
Innovation Solution
Implement repetition encoding and decoding methods to enhance data transmission performance by adding redundant information, enabling error correction and detection at the receiving end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If repetition encoding is applied to enhance data transmission performance, then error correction capability is improved, but device complexity increases
Solution Approach 1:
The encoding process is divided into two independent parts: repetition encoding (performed by the zero-power device) and interleaving encoding (performed by the network device). This segmentation allows each device to perform only simple operations while achieving comprehensive error correction capability through the combination of both encoding stages.
Solution Approach 2:
The patent introduces an intermediary interleaving encoding stage that processes the repeated sequences between transmission and final decoding. This intermediary step redistributes error patterns to make them more manageable for the final decoding process, enhancing overall error correction without requiring complex operations at the zero-power device.
2Reliability
If repetition encoding is used to improve data transmission reliability, then error detection capability is enhanced, but processing time increases
Solution Approach 1:
Repetition encoding is performed in advance at the zero-power device before transmission, creating redundant copies of the data sequence. This preliminary action ensures that error detection resources are already in place at the transmitter, reducing the processing burden and time required at the receiver side.
Solution Approach 2:
The system performs repetition encoding with a controlled repetition factor that provides sufficient error detection capability without excessive redundancy. This partial action approach balances the trade-off between error detection capability and processing time by using just enough repetition to achieve the required reliability.
3Reliability
If repetition encoding is implemented to enhance data transmission performance, then communication robustness is improved, but energy consumption increases
Solution Approach 1:
The encoding workload is segmented between the zero-power device (repetition encoding) and the network device (interleving encoding). This segmentation allows the energy-constrained zero-power device to perform only simple repetition operations, while more complex operations are offloaded to the network device with sufficient power resources.
Solution Approach 2:
The system optimizes the repetition factor parameter to achieve the minimum necessary redundancy for acceptable communication robustness. By carefully selecting this parameter, the system achieves adequate error correction capability while minimizing the energy consumption associated with generating and processing redundant data.
Data Source
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AI summary
Embodiments of the present disclosure provide a wireless communication method and a zero-power device. The method relates to the field of communication. The method includes the following. A second sequence is obtained by performing repetition encoding based on a first sequence to be encoded. With the method, redundant information is added by repetition encoding, such that a receiving end can perform error correction and error detection on a decoded result of the first sequence when decoding the first sequence based on the second sequence, thereby enhancing the data transmission performance of the zero-power device.