Segmented encoding method and segmented encoding device

Abstract

The application provides a segmented encoding method and a segmented encoding device. The method comprises the following steps: obtaining a number K of information bits to be encoded, a number M of bits of an encoded bit sequence that the system can carry, and a number L of internal codes, wherein the encoded bit sequence is a bit sequence obtained by encoding the information bits to be encoded, the length of each internal code is M / L, and L internal codes are correlated with each other by M / L external codes; determining, according to the K, M and L, the number and position of information bitscarried by each external code; encoding each external code in a code length L to obtain an encoded bit sequence corresponding to M / L external codes; performing, according to the encoded bit sequencecorresponding to M / L external codes, polarized encoding on each internal code in a code length M / L to obtain an encoded bit sequence corresponding to L internal codes; and obtaining, according to theencoded bit sequence corresponding to L internal codes, an encoded bit sequence. Since internal codes are correlated with each other by external codes, performance will not be affected due to splitting of codes.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a segment encoding method and device. Background technique [0002] The 5th generation mobile communication technology (5th-generation, referred to as: 5G), as the next generation wireless communication technology, has received extensive attention and research in 3GPP and other international standardization organizations. The application scenarios of 5G mobile communication systems (such as super Ultra-reliable and low-latency communications (uRLLC) has higher requirements, such as high reliability and low latency. Communication systems usually use channel coding to improve the reliability of data transmission and ensure communication Quality, Polar (polarization) code is the first channel coding method that can be strictly proved to "reach" the channel capacity. Polar code is a linear block code whose generator matrix is ​​G N , whose encoding process is ...

AI Technical Summary

Problems solved by technology

Although the above method can reduce the decoding delay, the code length is proportional to the coding gain. As the code length becomes shorter, the coding gain decreases, resulting in poor performance, such as a larger packet error rate.

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