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1. WO2020063287 - METHOD AND APPARATUS FOR FEEDING BACK CHANNEL STATE INFORMATION, AND TERMINAL, AND BASE STATION

Publication Number WO/2020/063287
Publication Date 02.04.2020
International Application No. PCT/CN2019/104420
International Filing Date 04.09.2019
IPC
H04B 7/06 2006.01
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
H04B 7/0456 2017.01
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
0413MIMO systems
0456Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04B 7/0452 2017.01
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
0413MIMO systems
0452Multi-user MIMO systems
CPC
H04B 7/0452
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
0452Multi-user MIMO systems
H04B 7/0456
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
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
Applicants
  • 电信科学技术研究院有限公司 CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY [CN]/[CN]
Inventors
  • 李辉 LI, Hui
  • 高秋彬 GAO, Qiubin
Agents
  • 北京同达信恒知识产权代理有限公司 TDIP & PARTNERS
Priority Data
201811132990.927.09.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND APPARATUS FOR FEEDING BACK CHANNEL STATE INFORMATION, AND TERMINAL, AND BASE STATION
(FR) PROCÉDÉ ET APPAREIL DE RENVOI D'INFORMATIONS D'ÉTAT DE CANAL, TERMINAL ET STATION DE BASE
(ZH) 一种信道状态信息的反馈方法及装置、终端和基站
Abstract
(EN)
Disclosed are a method and apparatus for feeding back channel state information, and a terminal, and a base station. The method for feeding back channel state information comprises: a terminal determining PMI groups in PMI information of N sub-bands, where N is the number of sub-bands configured by a base station for the terminal to report channel state information (CSI); and for one PMI group, the terminal selecting M sub-bands from the N sub-bands according to a functional relationship between PMI information in the PMI group, and feeding back PMI information of the M sub-bands and sub-band indication information to the base station, wherein 0<M≤N, and the sub-band indication information is used for indicating the M sub-bands.
(FR)
L'invention concerne un procédé et un appareil de renvoi d'informations d'état de canal, un terminal et une station de base. Le procédé de renvoi d'informations d'état de canal comprend les étapes suivantes : un terminal détermine des groupes de PMI parmi des informations de PMI de N sous-bandes, N représentant le nombre de sous-bandes configurées par une station de base pour que le terminal signale des informations d'état de canal (CSI) ; et pour un groupe de PMI, le terminal sélectionne M sous-bandes à partir des N sous-bandes, selon une relation fonctionnelle entre des informations de PMI du groupe de PMI, et renvoie des informations de PMI des M sous-bandes et des informations d'indication de sous-bande à la station de base, alors que 0<M≤ N, et les informations d'indication de sous-bande servent à indiquer les M sous-bandes.
(ZH)
本申请公开了一种信道状态信息的反馈方法及装置、终端和基站,其中,所述信道状态信息的反馈方法包括:终端在N个子带的PMI信息中确定PMI分组;其中,N为基站为终端配置的进行信道状态信息CSI上报的子带数;针对一个PMI分组,所述终端根据所述PMI分组中PMI信息之间的函数关系,从所述N个子带中选取出M个子带,并将所述M个子带的PMI信息以及子带指示信息反馈给所述基站,其中,0<M≤N,所述子带指示信息用于指示所述M个子带。
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Latest bibliographic data on file with the International Bureau