Granular Confirmation Feedback for New Radio Data Retransmission
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Solution Overview
Problem
Current feedback mechanisms in the New Radio (NR) system for mobile communication have low accuracy in locating erroneous data, as they typically feed back confirmation information per transmission block, leading to unnecessary retransmission of entire blocks when errors occur.
Innovation Solution
A method and apparatus that transmit signaling to instruct the receiving end to generate confirmation information with specified granularity, such as OFDM symbols, code blocks, or mini-slots, allowing for precise identification and retransmission of erroneous data, using pre-agreed implicit rules to improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If confirmation information is fed back per transmission block, then the feedback mechanism is simple, but the accuracy of locating erroneous data is low
Solution Approach 1:
The patent segments the transmission block into multiple confirmation information units, each corresponding to a specific portion of the transmission block. Instead of providing a single confirmation bit for the entire block, the system divides the block into segments and generates separate confirmation information for each segment, enabling precise identification of erroneous portions without requiring complete retransmission of the entire block.
2Loss of substance
If one confirmation information is fed back for one transmission block, then the feedback structure is simple, but the amount of data requiring retransmission is large
Solution Approach 1:
The transmission block is divided into multiple segments, each with its own confirmation information. When an error occurs, only the specific segment containing the error is identified and retransmitted, rather than retransmitting the entire transmission block. This segmentation approach significantly reduces the amount of data that needs to be retransmitted while maintaining a manageable feedback structure.
3Measurement precision
If granular confirmation information is implemented, then the accuracy of error identification improves, but the complexity of the feedback mechanism increases
Solution Approach 1:
The system segments the transmission block into manageable portions and assigns confirmation information to each segment. This segmentation enables precise error identification while keeping each segment small enough to be easily managed and retransmitted if necessary, balancing accuracy with operational simplicity.
Solution Approach 2:
The patent introduces a new dimension to the feedback mechanism by organizing confirmation information not just as a single bit per block, but as a structured array of bits corresponding to different segments and potentially different code block groups within segments. This multi-dimensional organization enables precise error location while maintaining systematic ease of operation through structured processing.
Data Source
AI summary
Provided by the present disclosure are a method and apparatus for processing confirmation information. The method includes: transmitting, by a transmitting end, a signaling, wherein the signaling is configured to instruct a receiving end to generate confirmation information corresponding to one-time data transmission according to the signaling and in combination with a pre-agreed implicit rule; and receiving, by the transmitting end, the confirmation information, and parsing the confirmation information according to the signaling and in combination with the pre-agreed implicit rule.