PARALLEL DECODING OF QC-LDPC CODES USING A COMPACT BASE GRAPH REPRESENTATION

摘要

Apparatuses, systems, and techniques to decode QC-LDPC encoded data. In at least one embodiment, parts of information for decoding the QC-LDPC encoded data is provided to a plurality of processors to perform in parallel a plurality of partial decoding operations, and parts of data decoded by the plurality of processors is combined. In at least one embodiment, one or more of the plurality of processors are provided with a compressed or compact representation of a base graph or photograph and a compact representation of a lifting set of the QC-LDPC code used for encoding. In at least one embodiment, a compacted row representation is used to represent a row of a base graph comprising a value indicative a number of non-zero entries in the row of the base graph and values indicative of a position of a respective non-zero entry of the base graph. In at least one embodiment, a communications standard, such as SG NR, defines one or more lifting sets to be used in encoding and decoding operations.