Search International and National Patent Collections

1. (WO2017196096) METHOD, DEVICE OF TRANSMITTING AND RECEIVING SIGNALS IN COMMUNICATIONS SYSTEM

Pub. No.:    WO/2017/196096    International Application No.:    PCT/KR2017/004875
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Fri May 12 01:59:59 CEST 2017
IPC: H04L 27/26
H04L 1/00
Applicants: SAMSUNG ELECTRONICS CO., LTD.
Inventors: XIONG, Qi
YU, Bin
QIAN, Chen
HAO, Chenxi
FU, Jingxing
Title: METHOD, DEVICE OF TRANSMITTING AND RECEIVING SIGNALS IN COMMUNICATIONS SYSTEM
Abstract:
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure discloses a signal transmission method in a communication system. The method includes: a: a transmitter sequentially applies channel encoding, modulation and grid mapping to an information bit sequence which is to be transmitted; b: inserts a preamble sequence or a cyclic prefix into a symbol sequence generated after the grid mapping, applies baseband-to-RF processing to the symbol sequence in which the preamble sequence or the cyclic prefix has been inserted and transmits the sequence obtained after the baseband-to-RF processing. During the process, the preamble sequence is periodically inserted, and the cyclic prefix is inserted into the symbol sequence in which the preamble sequence has not been inserted. The present disclosure can solve the high peak-average power ratio (PAPR) problem at the transmitting end, and can increase the power amplifier (PA) efficiency.