公开(公告)号：US20250126009A1

公开(公告)日：2025-04-17

申请号：US18649887

申请日：2024-04-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soheil Rostami ,  Fabrizio Carpi ,  Joonyoung Cho

IPC: H04L27/26

Abstract: Methods and apparatuses for PAPR reduction based on a pulse shaping operation in a wireless communication system. A method of operating a UE includes: converting, using a DFT, a modulated block of data symbols to a first symbol block in a frequency domain; extending, based on a spectral extension ratio associated with extended subcarriers (Nse), the first symbol block to a second symbol block with a length that is identified based on a number of scheduled subcarriers (NSC), wherein the second symbol block is symmetrically extended DFT symbol block; generating, using an FDSS filter with a number of tap values (NP), third symbol block based on the second symbol block that is symmetrically extended DFT symbol block; mapping the generated third symbol block to the NSC; generating, based on the mapped third symbol block, OFDM symbols in a time domain using an IFFT; and transmitting, to a BS, signals including the OFDM symbols.