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1. WO2018059087 - CHANNEL INFORMATION FEEDBACK METHOD AND APPARATUS, TERMINAL AND BASE STATION

Publication Number WO/2018/059087
Publication Date 05.04.2018
International Application No. PCT/CN2017/093556
International Filing Date 19.07.2017
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
H04L 1/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
CPC
H04B 7/0417
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
0417Feedback systems
H04B 7/0478
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
0478Special codebook structures directed to feedback optimization
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 7/0626
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 7/063
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
063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
H04B 7/0634
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
0634Antenna weights or vector/matrix coefficients
Applicants
  • 中兴通讯股份有限公司 ZTE CORPORATION [CN]/[CN]
Inventors
  • 吴昊 WU, Hao
  • 蔡剑兴 CAI, Jianxing
  • 李儒岳 LI, YU Ngok
  • 陈艺戬 CHEN, Yijian
  • 鲁照华 LU, Zhaohua
  • 肖华华 XIAO, Huahua
  • 李永 LI, Yong
  • 王瑜新 WANG, Yuxin
Agents
  • 北京康信知识产权代理有限责任公司 KANGXIN PARTNERS, P. C.
Priority Data
201610879367.430.09.2016CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) CHANNEL INFORMATION FEEDBACK METHOD AND APPARATUS, TERMINAL AND BASE STATION
(FR) PROCÉDÉ ET APPAREIL DE RÉTROACTION D'INFORMATIONS DE CANAL, TERMINAL ET STATION DE BASE
(ZH) 信道信息的反馈方法及装置、终端、基站
Abstract
(EN) Provided are a channel information feedback method and apparatus, a terminal and a base station. The method comprises: a terminal determining feedback state parameters of channel information, wherein the channel information comprises at least one of the following: M pre-coding vectors v1, v2,..., vM, G amplitude coefficients A1, A2,..., AG, and K phase coefficients P1, P2,..., PK, M, G and K all being integers greater than or equal to 0; and the terminal feeding back the channel information according to the determined feedback state parameters. The problem in the relevant art that in multipath-weighting or linear-combination feedback, the feedback overheads of a terminal are too large is solved, such that the terminal can perform more targeted channel information feedback, thereby reducing pilot overheads, improving the feedback efficiency, and saving resources.
(FR) L'invention concerne un procédé et un appareil de rétroaction d'informations de canal, un terminal et une station de base. Le procédé comprend les étapes suivantes : un terminal détermine des paramètres d'état de rétroaction d'informations de canal, les informations de canal comprenant au moins l'un des éléments suivants : M vecteurs de précodage v1, v2,..., vM, G coefficients d'amplitude A1, A2,..., AG, et K coefficients de phase P1, P2,..., PK, M, G et K étant tous des entiers supérieurs ou égaux à 0; et le terminal renvoie les informations de canal selon les paramètres d'état de rétroaction déterminés. Le problème dans l'état de la technique pertinent selon lequel, dans une rétroaction à trajets multiples ou à combinaison linéaire, les surdébits de rétroaction d'un terminal sont trop grands est résolu, de telle sorte que le terminal peut effectuer une rétroaction d'informations de canal plus ciblée, ce qui permet de réduire les surdébits pilotes, d'améliorer l'efficacité de rétroaction et d'économiser des ressources.
(ZH) 本发明提供了一种信道信息的反馈方法及装置、终端、基站,该方法包括:终端确定信道信息的反馈状态参数,其中,信道信息包括以下至少之一:M个预编码矢量v1,v2,...,vM,G个幅度系数A1,A2,...,AG,K个相位系数P1,P2,...,PK,M,G,K均为大于或等于0的整数;终端根据确定的反馈状态参数反馈信道信息。解决了相关技术中,在多径加权或线性组合的反馈中,终端反馈开销过大的问题,使得终端可以更有针对性地进行信道信息的反馈,降低导频开销,提高反馈效率,节省资源。
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