Patent ID: 9525578
Filing Date: 2016-12-20
CPC Classification: H03M,H04L

Claim Text:
1. A method of a wireless transmitter transmitting data in wireless communication system, the method comprising: dividing, by the wireless transmitter, an input bit stream into segments; generating, by the wireless transmitter, a packet by adding error detection code into each of the segments; dividing, by the wireless transmitter, the packet into a plurality of blocks with fixed size; coding, by the wireless transmitter, the plurality of blocks using random network coding including a coefficient matrix A having a non-singularity in its columns, wherein the coefficient matrix A is used for concurrently reducing both a peak-to-average power ratio (PAPR) and a block error rate (BLER) and is defined as follows: wherein v1, v2 . . . v wherein the coefficient matrix A is pre-stored in the wireless transmitter and a wireless receiver; determining whether to perform a puncturing, wherein it is determined to perform the puncturing if the PAPR does not satisfy a desired value and if the BLER is small enough to satisfy a target value; puncturing, by the wireless transmitter, a number of coded blocks selected from among the plurality of coded blocks to be punctured, the number being a minimum number of punctured coded blocks needed to satisfy the desired value, thereby maximizing a reduction of PAPR, when it is determined to perform the puncturing; mapping, by the wireless transmitter, the plurality of coded blocks including the selected number of punctured coded blocks to multiple OFDM subcarriers; and transmitting, by the wireless transmitter, the plurality of coded blocks on the multiple OFDM subcarriers to the wireless receiver.