HARQ Feedback Multiplexing for Partial Block Retransmission

The patent segments the transport block into multiple code blocks and provides per-code-block HARQ feedback. This allows the receiver to identify which specific code blocks were received successfully and which need retransmission, improving reliability without requiring complete retransmission of all blocks. The segmentation is implemented through dividing the transport block into K code blocks with individual CRCs, enabling granular feedback control.

The patent implements enhanced feedback mechanisms where the receiver provides detailed HARQ feedback indicating the success or failure of each code block reception. This feedback loop enables the transmitter to selectively retransmit only the failed code blocks, significantly improving data transmission reliability compared to traditional all-or-nothing retransmission approaches.

The patent applies partial retransmission by only retransmitting the specific code blocks that were received unsuccessfully, rather than retransmitting the entire transport block. This partial action approach reduces the retransmission time and improves latency performance while maintaining the reliability benefits of selective retransmission for only the failed blocks.

The patent performs preliminary actions by including CRC (cyclic redundancy check) information with each code block during the initial transmission. This allows the receiver to immediately identify which blocks need retransmission without requiring additional decoding time, enabling faster retransmission decisions and reducing overall latency.

The patent segments the data into multiple code blocks, each with its own CRC for error detection. This segmentation approach allows the receiver to independently detect errors in each block using its dedicated CRC, making error detection simpler and more efficient compared to detecting errors in a single large transport block. The segmentation enables parallel processing of multiple blocks.

The patent uses CRC (cyclic redundancy check) as a copying mechanism that creates a simplified error detection signature for each code block. The CRC acts as a condensed version of the block contents that can be quickly computed and compared to detect errors without re-processing the entire block data, thus reducing detection complexity while maintaining thoroughness.