US Patent 10355822 Communication techniques applying low-density parity-check code base graph selection

Wireless communication methods, systems, and devices capable of utilizing base graphs for error correction techniques. A base graph can be used to derive a low-density parity-check (LDPC) code used for encoding a retransmission of an original transmission in a wireless communication system. An exemplary method generally includes selecting, based on a modulation and coding scheme (MCS) and a resource allocation (RA) for transmitting a codeword, a base graph (BG), from which to derive a low density parity check (LDPC) code for use in encoding data bits in the codeword (e.g., encoding data bits of a bitstream such that some redundant bits are included in the codeword), encoding the data bits to generate the codeword using the LDPC code derived from the selected BG, and transmitting the codeword using the MCS via resources of the RA.