Semantic Retransmission Control for Efficient Data Communication
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Solution Overview
Problem
Conventional data transmission mechanisms focus on perfect data reconstruction, leading to unnecessary retransmissions and inefficiencies in semantic communication due to fault tolerance limitations.
Innovation Solution
Implement a semantic communication method that includes sending semantic data with indication information to determine if retransmission is necessary, based on semantic and data checks, reducing retransmissions by only sending data that fails both checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional data transmission mechanism with CRC check is used, then data reconstruction accuracy is improved, but unnecessary retransmission increases
Solution Approach 1:
The patent changes the check parameter from binary CRC pass/fail to multi-level semantic quality assessment. The semantic check module evaluates semantic correctness, semantic completeness, and semantic consistency to determine retransmission necessity, replacing the traditional all-or-nothing CRC approach with nuanced quality-based decisions.
Solution Approach 2:
The patent introduces feedback mechanisms at multiple levels: semantic check results feed back to the retransmission decision, and the indication information feeds back to the transmitting end. This multi-level feedback system enables intelligent retransmission control based on actual semantic quality rather than just data integrity.
2Quantity of substance
If semantic communication is implemented, then transmission overhead is reduced, but fault tolerance capability deteriorates
Solution Approach 1:
The patent performs preliminary semantic checks before retransmission decisions. The semantic check module预先 evaluates the received semantic data for correctness, completeness, and consistency, allowing the system to prepare appropriate retransmission strategies in advance rather than reacting to failures after they occur.
Solution Approach 2:
The patent makes the retransmission strategy dynamic by adjusting it based on semantic check results. When semantic errors are detected, the system dynamically decides whether to request retransmission, request specific semantic corrections, or accept the data as-is, making the communication protocol adaptive rather than static.
3Reliability
If data retransmission is performed when CRC check fails, then data integrity is improved, but communication time increases
Solution Approach 1:
The patent applies partial action by requesting only the specific semantic data that failed the check rather than retransmitting the entire data packet. The indication information specifies exactly which semantic data needs retransmission, reducing the retransmission volume and thus the time required compared to conventional full-packet retransmission.
Solution Approach 2:
The patent segments the retransmission process into targeted corrections based on semantic check results. Instead of treating all data uniformly, the system identifies and isolates specific semantic data elements that failed validation, allowing selective retransmission of only those segments.
Data Source
Figure 1A~1B
Figure 1C~2
Figure 3
AI summary
Embodiments of this application provide a semantic communication method and a related apparatus, to reduce unnecessary data retransmission and improve semantic communication efficiency. The semantic communication method provided in this application includes: sending first semantic data, where the first semantic data is determined from first data; and receiving first indication information, where the first indication information includes first information, and the first information indicates not to retransmit the first semantic data; the first indication information includes second information, and the second information is used to request semantic data other than the first semantic data in semantic data determined from the first data; or the first indication information includes third information, and the third information indicates to retransmit the first semantic data.