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1. (WO2018030678) REFERENCE SIGNAL HAVING VARIABLE STRUCTURE

Pub. No.:    WO/2018/030678    International Application No.:    PCT/KR2017/008081
Publication Date: Fri Feb 16 00:59:59 CET 2018 International Filing Date: Fri Jul 28 01:59:59 CEST 2017
IPC: H04L 5/00
H04L 27/26
Applicants: LG ELECTRONICS INC.
엘지전자 주식회사
Inventors: KO, Hyunsoo
고현수
KIM, Kijun
김기준
KIM, Eunsun
김은선
YANG, Suckchel
양석철
Title: REFERENCE SIGNAL HAVING VARIABLE STRUCTURE
Abstract:
A method for transmitting a data demodulation reference signal (DMRS) in a wireless communication system and a device therefor are disclosed. To this end, a basic DMRS is transmitted via the first OFDM symbol in a data transmission region of a predetermined subframe, and an additional DMRS is transmitted in the predetermined subframe in accordance with a level determined by a transmission environment, wherein the basic DMRS is characterized by being transmitted via the first OFDM symbol in the data transmission region of the predetermined subframe regardless of a transmission link, the structure of the subframe, and the transmission environment.