Processing

Please wait...

Settings

Settings

Goto Application

1. WO2018143662 - METHOD FOR REPORTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

Publication Number WO/2018/143662
Publication Date 09.08.2018
International Application No. PCT/KR2018/001322
International Filing Date 31.01.2018
IPC
H04B 7/06 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
CPC
H04B 7/0469
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
046taking physical layer constraints into account
0469taking special antenna structures, e.g. cross polarized antennas into account
H04B 7/0486
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
0486taking channel rank into account
H04B 7/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
H04B 7/0617
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0617for beam forming
H04B 7/0626
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0619using feedback from receiving side
0621Feedback content
0626Channel coefficients, e.g. channel state information [CSI]
H04B 7/0639
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0619using feedback from receiving side
0636Feedback format
0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
Applicants
  • 엘지전자(주) LG ELECTRONICS INC. [KR]/[KR]
  • 서강대학교 산학협력단 SOGANG UNIVERSITY RESEARCH FOUNDATION [KR]/[KR]
Inventors
  • 박해욱 PARK, Haewook
  • 김창현 KIM, Changhyeon
  • 신성인 SHIN, Sungin
  • 성원진 SUNG, Wonjin
  • 이혁준 LEE, Hyukjun
  • 박종현 PARK, Jonghyun
Agents
  • 특허법인 로얄 ROYAL PATENT & LAW OFFICE
Priority Data
62/452,96731.01.2017US
62/475,16922.03.2017US
62/540,56703.08.2017US
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR REPORTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR
(FR) PROCÉDÉ POUR RAPPORTER DES INFORMATIONS D'ÉTAT DE CANAL DANS UN SYSTÈME DE COMMUNICATION SANS FIL, ET APPAREIL CORRESPONDANT
(KO) 무선 통신 시스템에서 채널 상태 정보 보고 방법 및 이를 위한 장치
Abstract
(EN) A method for reporting channel state information of a terminal comprises: a step of measuring CSI-RS transmitted from a base station; and a step of reporting CSI generated on the basis of the CSI-RS measurement to the base station, wherein the CSI comprises: a PMI for indicating a precoding matrix from a codebook and an RI for indicating a rank, wherein the PMI comprises a first PMI for a beam group selected by the terminal and a second PMI which comprises a beam sub-group selection information for beams included in the beam group and phase- matching information for each antenna port polarization for the selected beam sub-group, and wherein as the rank increases, the phase-matching information may be indicated with different granularity from each other depending on whether the beam sub-groups selected from the beam group are the same or different.
(FR) L'invention concerne un procédé pour rapporter des informations d'état de canal d'un terminal, qui comprend : une étape de mesure de CSI-RS émis à partir d'une station de base ; et une étape de rapport de CSI générées sur la base de la mesure du CSI-RS à la station de base, les CSI comprenant : un PMI permettant d'indiquer une matrice de précodage à partir d'un livre de codes et un RI pour indiquer un classement, le PMI comprenant un premier PMI pour un groupe de faisceaux sélectionné par le terminal et un second PMI qui comprend des informations de sélection de sous-groupe de faisceaux pour des faisceaux inclus dans le groupe de faisceaux et des informations de correspondance de phase pour chaque polarisation de port d'antenne pour le sous-groupe de faisceaux sélectionné. Lorsque le classement augmente, les informations de correspondance de phase peuvent être indiquées avec une granularité différente les unes des autres en fonction de si les sous-groupes de faisceaux sélectionnés dans le groupe de faisceaux sont identiques ou différents.
(KO) 단말의 채널 상태 정보를 보고하는 방법에 있어서, 기지국으로부터 전송된 CSI-RS를 측정하는 단계; 및 상기 CSI-RS 측정을 기초로 생성한 CSI를 상기 기지국에 보고하는 단계; 를 포함하되, 상기 CSI는 코드북으로부터 프리코딩 행렬을 지시하기 위한 PMI 및 탱크를 지시하기 위한 RI를 포함하되, 상기 PMI는 상기 단말에 의해 선택된 빔 그룹에 대한 제 1 PMI 및 상기 빔 그룹에 포함된 빔들에 대한 빔 서브 그룹 선택 정보와 상기 선택된 빔 서브 그룹에 대한 안테나 포트 편파별 위상-일치 정보를 포함하는 제 2 PMI를 포함하되, 상기 위상-일치 정보는, 상기 랭크가 증가함에 따라 상기 빔 그룹 내에서 선택된 빔 서브 그룹들이 동일한 경우와 상이한 경우별로 서로 다른 세분성으로 지시될 수 있다.
Related patent documents
Latest bibliographic data on file with the International Bureau