Wireless Feedback on Original Data to Cut Retransmissions
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Solution Overview
Problem
Existing wireless communication networks provide limited feedback information, allowing only reception status for coded data or data groups, which reduces data transmission efficiency.
Innovation Solution
A method where a receive node feeds back reception status for original data, enabling richer feedback information to improve data transmission efficiency by allowing the send node to better organize subsequent data transmissions and reduce unnecessary retransmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the receive node feeds back only reception status for coded data or coded data group, then the feedback mechanism is simple, but the feedback information is limited and data transmission efficiency is reduced
Solution Approach 1:
The patent segments the feedback information by dividing it into two parts: ACK information for correctly received code blocks and NACK information for incorrectly received code blocks. This segmentation allows the system to provide detailed feedback at the code block level while maintaining a structured feedback format, thereby improving data transmission efficiency without excessive complexity
Solution Approach 2:
The patent adds a new dimension to the feedback mechanism by introducing code block-level acknowledgment (ACK/NACK) information in addition to the traditional transport block-level feedback. This dimensional expansion enables the send node to identify specific failed code blocks for retransmission, significantly improving transmission efficiency
2Productivity
If the receive node feeds back reception status for original data in coded data, then the feedback information becomes richer and data transmission efficiency improves, but the feedback processing complexity increases
Solution Approach 1:
The patent segments the coded data into multiple code blocks and provides feedback for each code block individually. This segmentation enables the system to identify specific failed code blocks without requiring complex processing of the entire coded data structure, thus improving efficiency while controlling complexity
Solution Approach 2:
The patent implements a detailed feedback mechanism where the receive node sends ACK/NACK information for each code block. This structured feedback approach provides rich information to the send node while maintaining clear processing rules, balancing information richness with processing complexity
Data Source
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AI summary
This application provides a method for wireless communication and an apparatus. The method includes: receiving, by a communication device, L pieces of first data, and determining reception statuses for the L pieces of first data, where L is an integer greater than 1; receiving, by the communication device, second data, and generating feedback information based on the reception statuses for the L pieces of first data and the second data, where the feedback information indicates one or more reception statuses for M pieces of first data, the M pieces of first data are included in the L pieces of first data, and M is a positive integer less than or equal to L; and the second data is data obtained after N pieces of first data are encoded, the N pieces of first data are included in the L pieces of first data, and N is a positive integer less than or equal to L; and sending, by the communication device, the feedback information.