Design of Polar Codes in 5G New Radio

TL;DR

This paper explains the design and implementation of polar codes for 5G New Radio, focusing on encoding, rate flexibility, and low latency to meet 5G standards.

Contribution

It presents a comprehensive framework for polar code design tailored to 5G NR, incorporating novel coding techniques for improved performance.

Findings

Polar codes are adopted in 5G NR standard.

The framework achieves rate flexibility and low decoding latency.

Design strategies meet 5G channel coding requirements.

Abstract

Polar codes have attracted the attention of academia and industry alike in the past decade, such that the 5$^\text{th}$ generation wireless systems (5G) standardization process of the 3$^\text{th}$ generation partnership project (3GPP) chose polar codes as a channel coding scheme. In this tutorial, we provide a description of the encoding process of polar codes adopted by the 5G standard. We illustrate the struggles of designing a family of polar codes able to satisfy the demands of 5G systems, with particular attention to rate flexibility and low decoding latency. The result of these efforts is an elaborate framework that applies novel coding techniques to provide a solid channel code for NR requirements.