CODES DE CONTRÔLE DE PARITÉ À FAIBLE DENSITÉ (LDPC) QUASI-CYCLIQUES POUR LES COMMUNICATIONS MOBILES DE 5G

摘要

Certain aspects of the present disclosure generally relate to methods and apparatus for a high-performance, flexible, and compact LDPC code. In an aspect, a method may include the method steps of determining a base graph associated with a plurality of low-density parity-check, LDPC, codes for a plurality of code rates and blocklengths, the base graph corresponding to a base parity check matrix, PCM, having a maximum number of base information columns corresponding to a maximum number of base information bits, determining a lifting size value for generating a lifted LDPC code, shortening the base PCM by removing one or more of the base information columns corresponding to one or more base information bits based on at least one of: a desired code rate, lifting size value, or blocklength for transmission, generating the lifted LDPC code based on the shortened base PCM and the determined lifting size value and at least one of: encoding a set of information bits using the lifted LDPC code to produce one or more codewords for transmission or decoding one or more received codewords using the lifting LDPC code to obtain a set of information bits.