Information transmission method in semantic communication system

An information transmission and communication system technology, applied in the field of 6G mobile communication, can solve problems such as method disclosure, and achieve the effect of avoiding waste and improving efficiency

Active Publication Date: 2021-12-24
ZHEJIANG LAB
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Problems solved by technology

[0005] However, under the basic framework of the above-mentioned semantic comm

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  • Information transmission method in semantic communication system
  • Information transmission method in semantic communication system
  • Information transmission method in semantic communication system

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0043] refer to figure 2 , an embodiment of the present invention provides an information transmission method in a semantic communication system, which specifically includes the following steps:

[0044] S1. The sender first extracts semantic information, generates a semantic representation sequence, adds information of the semantic knowledge base to the generated semantic representation seq...

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Abstract

The embodiment of the invention provides an information transmission method in a semantic communication system. The method comprises the following steps that: a sending end firstly performs semantic information extraction to generate a semantic representation sequence, adds information of a semantic knowledge base into the generated semantic representation sequence, and then performs semantic coding to generate a semantic coding sequence; channel coding is performed on the semantic coding sequence to generate a wireless signal, and the wireless signal is transmitted to a receiving end through a wireless channel; the receiving end carries out channel decoding and semantic decoding on the received wireless signal; the receiving end feeds back to the sending end according to whether the channel decoding and the semantic decoding are correct or not; and the sending end decides whether retransmission is needed or not and the retransmission mode according to the feedback result until the receiving end obtains a correct semantic decoding result. According to the technical scheme of the embodiment of the invention, the efficiency of data transmission and feedback retransmission can be improved, and the waste of computing resources and transmission resources is avoided.

Description

technical field [0001] The invention relates to the field of 6G mobile communication, in particular to an information transmission method in a semantic communication system. Background technique [0002] Semantic Communications uses the semantic information of the transmission content to encode, which can remove redundant data, reduce the amount of transmitted data, and meet the intelligent communication needs of the 6G era. The so-called semantic communication refers to the communication method that extracts semantic information from the information source and encodes it, and transmits it in a noisy channel. Traditional grammatical communication requires that the decoded information at the receiving end is strictly consistent with the encoded information at the sending end, that is, to achieve bit-level error-free transmission. Semantic communication does not require the decoding sequence to be strictly consistent with the encoding sequence, but only requires the semantics ...

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Application Information

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IPC IPC(8): H04L1/18H04L1/16
CPCH04L1/1812H04L1/1829H04L1/1864H04L1/1607
Inventor 刘萌萌张建锋李振廷
Owner ZHEJIANG LAB
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