Patent ID: 6956909

Claim:
A transmission rate matching apparatus for a mobile communication system, the apparatus comprising: an encoder adapted to perform error-correction-encoding of an input bit column and generate code word bits from the error-correction-encoded input bit column; a block interleaver adapted to receive the code word bits, store the code word bits as row unit data, and output the code word bits as column unit data; a switching unit adapted to perform a switching algorithm for converting an output sequence of the code word bits crossly and output the converted output sequence of the code word bits to the block interleaver in order to distribute biased data bits included in each column of the block interleaver uniformly when the number of the code word bits of the encoder and the number of the columns of the block interleaver are not coprime; a radio frame segment processing unit adapted to generate a radio frame after receiving the column unit data output from the block interleaver; and a transmission rate matching unit adapted to match data bits included in the radio frame to a transmission format suitable for transmission between a terminal and a base station, and transmit the radio frame.