APPARATUS AND METHOD FOR PERFORMING RATE MATCHING OF DATA COMMUNICATION SYSTEM

摘要

PURPOSE: An apparatus for performing a rate matching of a data communication system is provided to configure encoded symbols into rate matching blocks corresponding to an inverse number of an encoding rate, and to change values only of variables in a unified rate matching structure, so as to carry out rate matching processes for symbols encoded by a non-systematic code or symbols encoded by a systematic code. CONSTITUTION: A channel encoder(200) channel-encodes inputted information bits according to a code rate(R=k/n), and outputs encoded symbols. Rate matching units(231-239) separately receive the frame-unit encoded symbols as the number of same input symbols, which are decided according to a code rate. The rate matching units(231-239) perform puncturing/iterative processes for the received symbols. The rate matching units(231-239) puncture inputted symbols according to predetermined puncturing patterns to output the punctured symbols, or iterate the inputted symbols according to predetermined iterative patterns to output the iterated symbols. A MUX(Multiplexer)(240) multiplexes the rate matched symbols, and outputs the multiplexed symbols to a channel transmitter.