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1. WO2020107346 - CSI MEASUREMENT FEEDBACK METHOD AND APPARATUS, AND STORAGE MEDIUM

Publication Number WO/2020/107346
Publication Date 04.06.2020
International Application No. PCT/CN2018/118285
International Filing Date 29.11.2018
IPC
H04L 12/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
02Details
26Monitoring arrangements; Testing arrangements
CPC
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 7/0632
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
0632Channel quality parameters, e.g. channel quality indicator [CQI]
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
H04L 5/0048
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/0053
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0053Allocation of signaling, i.e. of overhead other than pilot signals
H04L 5/0057
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0053Allocation of signaling, i.e. of overhead other than pilot signals
0057Physical resource allocation for CQI
Applicants
  • 北京小米移动软件有限公司 BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. [CN]/[CN]
Inventors
  • 李明菊 LI, Mingju
Agents
  • 北京三高永信知识产权代理有限责任公司 BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) CSI MEASUREMENT FEEDBACK METHOD AND APPARATUS, AND STORAGE MEDIUM
(FR) PROCÉDÉ ET APPAREIL DE RÉTROACTION DE MESURE DE CSI, ET SUPPORT DE STOCKAGE
(ZH) CSI测量反馈方法、装置及存储介质
Abstract
(EN)
The present invention relates to the technical field of communications, and relates to a CSI measurement feedback method and apparatus, and a storage medium in a V2X direct communication scenario. The method comprises: a first device receives CSI measurement reference signal resource pool configuration information transmitted by a base station; the first device transmits CSI measurement configuration information to a second device with which the first device performs the direct communication; and the first device receives CSI measurement feedback information transmitted by the second device. The present invention provides the CSI measurement feedback method for the V2X direct communication scenario, so that a more suitable MCS can be selected for information transmission, and spectral efficiency is improved.
(FR)
La présente invention se rapporte au domaine technique des communications et concerne un procédé et un appareil de rétroaction de mesure d'informations d'état de canal (CSI), ainsi qu'un support de stockage dans un scénario de communication directe V2X. Le procédé comprend les étapes suivantes : un premier dispositif reçoit des informations de configuration de groupe de ressources de signal de référence de mesure de CSI transmises par une station de base ; le premier dispositif transmet des informations de configuration de mesure de CSI à un second dispositif avec lequel le premier dispositif effectue la communication directe ; et le premier dispositif reçoit des informations de rétroaction de mesure de CSI transmises par le second dispositif. La présente invention concerne le procédé de rétroaction de mesure de CSI pour le scénario de communication directe V2X, de telle sorte qu'un schéma de modulation et de codage (MCS) plus approprié peut être sélectionné pour la transmission d'informations, et l'efficacité spectrale est améliorée.
(ZH)
本公开是关于一种V2X直连通信场景下的CSI测量反馈方法、装置及存储介质,属于通信技术领域。所述方法包括:第一设备接收基站发送的CSI测量参考信号资源池配置信息;第一设备向与其进行直连通信的第二设备发送CSI测量配置信息;第一设备接收第二设备发送的CSI测量反馈信息。本公开针对V2X直连通信场景,提供了一种CSI测量反馈方法,从而使得信息发送能够选择更合适的MCS,提高频谱效率。
Also published as
CN201880002214.9
Latest bibliographic data on file with the International Bureau