Encoding and decoding method for semantic channel and related device
AssigneeBeijing University of Posts and Telecommunications
InventorsKai Niu, Yang Liu, Ping Zhang
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Abstract
Disclosed is an encoding method for semantic channels. According to the encoding method, a semantic codebook and synonymous mapping relationships may be obtained at first. Then, a syntactic information sequence to be transmitted may be determined. Further, a syntactic codeword from the semantic codebook corresponding to the syntactic information sequence may be determined based on the synonymous mapping relationships. Finally, the syntactic codeword may be modulated to obtain a signal vector.
Claims13
An encoding method for semantic channels, comprising:
- obtaining a pre-constructed semantic codebook and synonymous mapping relationships;
- determining a syntactic information sequence to be transmitted;
- determining a syntactic codeword from the semantic codebook corresponding to the syntactic information sequence based on the synonymous mapping relationships;
- and
- modulating the syntactic codeword to obtain a signal vector.
A decoding method for semantic channels, comprising:
- obtaining a pre-constructed semantic codebook and synonymous mapping relationships;
- performing a signal recovery process on a signal vector to obtain a sequence index of a target synonymous set which is used to represent a type of semantic information according to the semantic codebook and a preset decoding criterion;
- determining a target syntactic information sequence set corresponding to the sequence index of the target synonymous set based on the synonymous mapping relationships;
- and
- selecting a syntactic information sequence from the target syntactic information sequence set as an output result.
Dependencies are inferred from the claim text.