| 摘要 |
<p>PURPOSE: A channel encoding/decoding method and a device thereof in a communication system using an LDPC code are provided to reduce by applying a different reduced pattern in a modulation technique. CONSTITUTION: A demodulator(1230) demodulates a transmitted signal from a transmitter. A reduced pattern determiner or estimator(1220) determines location information of a punched parity bit. An LDPC decoder(1240) decodes the demodulated signal by considering a location of the determined reduced information bit. A location determination procedure of the reduced information bit includes a step of determining the number of reduced information bits, a step of determining the number of reduced bit groups based on the determined reduced information bits and a step of obtaining an order of predetermined bit groups. [Reference numerals] (1210) Control unit; (1220) Reduced pattern determiner or estimator; (1230) Demodulator; (1240) LDPC decoder</p> |
