Patent ID: 8219877
Filing Date: 2012-07-10
Classification: G06F,H03M,H04L

Abstract:
1. A method of transmitting uplink data in a wireless access system, the method comprising: generating a second input bit sequence by attaching a first error detection code to a first input bit sequence, wherein a size B of the second input bit sequence is set by adding a size A of the first input bit sequence and a size S of the first error detection code; calculating a number C of code blocks using the size B of the second input bit sequence, a maximum size Z of the code blocks, and a size L of a second error detection code which is to be attached to each of the code blocks, if the size B of the second input bit sequence is larger than the maximum size Z of the code blocks; calculating a size B′ of a modified second input bit sequence using the number C of the code blocks, the size L of the second error detection code, and the size B of the second input bit sequence; obtaining a size K of each of the code blocks from predetermined values, based on a value obtained by dividing the size B′ of the modified second input bit sequence by the number C of the code blocks; segmenting the second input bit sequence to have the number C of the code blocks and the obtained size K of each of the code blocks; generating the code blocks by attaching the second error detection code to each of the segmented second input bit sequences; and channel-coding the code blocks, wherein the number C of the code blocks is set to an integer by rounding up a value obtained by dividing the size B of the second input bit sequence by a result of subtracting the size L of the second error detection code from the maximum size Z of the code blocks such that C=┌B/(Z−L)┐.