期刊
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS
卷 22, 期 1, 页码 96-122出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/COMST.2019.2960746
关键词
5G; polar coding; forward error correction; new radio; 5G wireless system standardization
资金
- Engineering and Physical Sciences Research Council [EP/Noo4558/1, EP/PO34284/1, COALESCE]
- Royal Society's Global Challenges Research Fund
- European Research Council's Advanced Fellow Grant QuantCom
- EPSRC [EP/L010550/1, EP/J015520/1, EP/N004558/1] Funding Source: UKRI
Since their inception in 2008, polar codes have been shown to offer near-capacity error correction performance across a wide range of block lengths and coding rates. Owing to this, polar codes have been selected to provide channel coding in the control channels of Third Generation Partnership Project (3GPP) New Radio (NR). The operation of the 3GPP NR polar codes is specified in the 3GPP standard TS 38.212, together with schemes for code block segmentation, Cyclic Redundancy Check (CRC) attachment, CRC scrambling, CRC interleaving, frozen and parity check bit insertion, sub-block interleaving, bit selection, channel interleaving and code block concatenation. The configuration of these components is different for the uplink, broadcast and downlink control channels. However, the lack of visualisations and diagrammatic explanations in TS 38.212 limits the accessibility of the standard to new readers. This motivates the aims of the paper, which provides detailed tutorials on the operation and motivation of the components of the 3GPP NR polar codes, as well as surveys of the 3GPP discussions that led to their specification. Furthermore, we comprehensively characterize the error correction and error detection performance of the 3GPP NR polar codes in the uplink, broadcast and downlink control channels.
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