Encoding method, decoding method, encoding device, and decoding device

Abstract

The present application provides an encoding method, a decoding method, an encoding device, and a decoding device. The encoding method includes the steps: dividing a to-be-transmitted transport blockinto N bit segments, wherein N is an integer greater than 1; encoding the i-th bit segment in the N bit segments to obtain an i-th code block, wherein the check bit of the i-th code block is calculated by the i-th bit segment and a reference bit of the i-th bit segment, wherein i is greater than 1 and a positive integer less than or equal to N, and the reference bit of the i-th bit segment includes some or all of the bits of the i-th bit segment except the reference bits of the i-th bit segment. The encoding method of the embodiment of the present application does not need to change an existing transport block-based hybrid automatic repeat request protocol, and maintains the advantages of the low uplink channel resource occupancy rate and simple management of feedback retransmission in theexisting feedback retransmission protocol, and improves coding gain.

Description

Technical field [0001] This application relates to the field of communications, and more specifically, to an encoding method, a decoding method, an encoding device, and a decoding device. Background technique [0002] The Hybrid Automatic Repeat Request (HARQ) protocol in the current Long Term Evolution (LTE) standard uses a transport block (TB)-based error retransmission mechanism, that is, the receiver uses 1-bit information Feedback the receiving status of a transport block to the sender. If a transmission block is completely received correctly, the receiving end sends an acknowledgement feedback (Acknowledge, ACK) to the sending end to inform that the transmission block is received correctly. If an error occurs in a transmission block, the receiving end sends a negative feedback negative acknowledgement (Negative Acknowledge, NACK) to the sending end to inform that the transmission block has an error. Since 1-bit negative feedback cannot inform the sender of any information...

AI Technical Summary

Problems solved by technology

The coding matrix of the existing terminal space coupled code must be obtained based on the entire terminal space coupled code, which does not have the characteristics of block repetition and sparseness, which leads to high complexity of the encoding device. At the same time, the existing terminal space coupled code adopts sliding window decoding algorithm, but the parity check matrix in the decoding window does not have time-invariant characteristics, resulting in high complexity of the decoding device

Images