METHOD AND APPARATUS FOR CHANNEL ENCODING AND DECODING IN COMMUNICATION SYSTEM USING LOW-DENSITY PARITY CHECK CODES Russian patent published in 2012 - IPC H03M13/11 

FIELD: information technology.

SUBSTANCE: channel encoding method in a communication system involves determining the number parity bits for deletion; separating parity bits through predetermined intervals and determining the number of deleted parity bits which are deleted in said predetermined intervals; determining the modulation scheme; determining positions of the deleted parity bits corresponding to said determined number of deleted bits in said predetermined intervals according to the modulation scheme; performing multiple deletions of the deleted parity bits corresponding to said determined positions in said predetermined intervals; and transmitting the rest of the bits, except the deleted bits, according to the modulation scheme.

EFFECT: high efficiency of channel encoding/decoding using LDPC codes.

40 cl, 19 dwg, 4 tbl