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1. WO2022010014 - METHOD AND APPARATUS FOR ESTIMATING PHASE NOISE IN WIRELESS COMMUNICATION SYSTEM

Publication Number WO/2022/010014
Publication Date 13.01.2022
International Application No. PCT/KR2020/009136
International Filing Date 10.07.2020
IPC
H04L 25/02 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
H04L 25/03 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
H04L 27/26 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
H04L 5/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04W 56/00 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
56Synchronisation arrangements
H04B 17/309
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
30of propagation channels
309Measuring or estimating channel quality parameters
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR]
  • 한국과학기술원 KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY [KR]/[KR]
Inventors
  • 금승원 KEUM, Seungwon
  • 정재훈 CHUNG, Jaehoon
  • 이상림 LEE, Sangrim
  • 조동호 CHO, Dongho
  • 이주용 LEE, Juyong
  • 노상미 NOH, Sangmi
  • 김당오 KIM, Dangoh
  • 김성재 KIM, Seongjae
Agents
  • 특허법인 로얄 ROYAL PATENT & LAW OFFICE
Priority Data
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND APPARATUS FOR ESTIMATING PHASE NOISE IN WIRELESS COMMUNICATION SYSTEM
(FR) PROCÉDÉ ET APPAREIL D'ESTIMATION DE BRUIT DE PHASE DANS UN SYSTÈME DE COMMUNICATION SANS FIL
(KO) 무선 통신 시스템에서 위상 잡음의 추정 방법 및 그 장치
Abstract
(EN) A method for estimating a phase noise by a wireless device in a wireless communication system according to an embodiment of the present specification comprises the steps of: receiving a pre-configured pilot signal and a phase tracking reference signal (PTRS); calculating a first phase noise on the basis of the pre-configured pilot signal; calculating a common phase error (CPE) on the basis of the phase tracking reference signal (PTRS); and estimating a phase noise (PN) on the basis of the first phase noise and the common phase error (CPE). The PN is estimated through interpolation based on a specific reference point, and the specific reference point is based on the first phase noise and the CPE.
(FR) Un procédé d'estimation de bruit de phase par un dispositif sans fil dans un système de communication sans fil selon un mode de réalisation de la présente invention comprend les étapes consistant : à recevoir un signal pilote préconfiguré et un signal de référence de suivi de Phase (PTRS) ; à calculer un premier bruit de phase sur la base du signal pilote préconfiguré ; à calculer une erreur de phase commune (CPE) sur la base du signal de référence de suivi de phase (PTRS) ; et à estimer un bruit de phase (PN) sur la base du premier bruit de phase et de l'erreur de phase commune (CPE). Le PN est estimé par interpolation sur la base d'un point de référence spécifique, et le point de référence spécifique est basé sur le premier bruit de phase et la CPE.
(KO) 본 명세서의 일 실시예에 따른 무선 통신 시스템에서 무선 장치가 위상 잡음을 추정하는 방법은 미리 설정된 파일럿 신호(pre-configured pilot signal) 및 위상 추적 참조 신호(Phase Tracking Reference Signal, PTRS)를 수신하는 단계, 상기 미리 설정된 파일럿 신호에 기반하여 제1 위상 잡음(first phase noise)을 계산하는 단계, 상기 위상 추적 참조 신호(PTRS)에 기반하여 공통 위상 오차(Common Phase Error, CPE)를 계산하는 단계 및 상기 제1 위상 잡음 및 상기 공통 위상 오차(CPE)에 기반하여 위상 잡음(phase noise, PN)을 추정하는 단계를 포함한다. 상기 PN은 특정 기준점(specific reference point)에 기반하는 인터폴레이션(interpolation)을 통해 추정되며, 상기 특정 기준점은 상기 제1 위상 잡음 및 상기 CPE에 기반하는 것을 특징으로 한다.
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