WO2022148380A9 - Procédé de retour de canal, procédé de transmission d'informations et dispositif - Google Patents

Procédé de retour de canal, procédé de transmission d'informations et dispositif Download PDF

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Publication number
WO2022148380A9
WO2022148380A9 PCT/CN2022/070349 CN2022070349W WO2022148380A9 WO 2022148380 A9 WO2022148380 A9 WO 2022148380A9 CN 2022070349 W CN2022070349 W CN 2022070349W WO 2022148380 A9 WO2022148380 A9 WO 2022148380A9
Authority
WO
WIPO (PCT)
Prior art keywords
class
reference signal
codebook
basis
channel
Prior art date
Application number
PCT/CN2022/070349
Other languages
English (en)
Chinese (zh)
Other versions
WO2022148380A1 (fr
Inventor
吴丹
孙军帅
金婧
苏鑫
王启星
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国移动通信有限公司研究院, 中国移动通信集团有限公司 filed Critical 中国移动通信有限公司研究院
Publication of WO2022148380A1 publication Critical patent/WO2022148380A1/fr
Publication of WO2022148380A9 publication Critical patent/WO2022148380A9/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/04013—Intelligent reflective surfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé de retour de canal, un procédé de transmission d'informations et un dispositif, qui résolvent le problème de l'état de la technique selon lequel un terminal ne peut pas exécuter une estimation et un retour de canal sur un canal de réflexion. Le procédé dans les modes de réalisation de la présente demande consiste à : recevoir un signal de référence de classe I et un signal de référence de classe II, le signal de référence de classe I correspondant à un livre de codes de classe I, et le signal de référence de classe II correspondant à un livre de codes de classe II ; sur la base du signal de référence de classe I, retourner un mot de code sélectionné sur la base du livre de codes de classe I et d'un type de livre de codes correspondant ; et, sur la base du signal de référence de classe II, retourner un mot de code sélectionné sur la base du livre de codes de classe II et d'un type de livre de codes correspondant. Par introduction du signal de référence de classe II, les modes de réalisation de la présente demande peuvent réaliser une estimation et un retour de canal du canal de réflexion, pour refléter avec précision les caractéristiques du canal de réflexion, de telle sorte qu'une station de base obtient des informations de canal précises, et fournit une base précise pour le calcul de précodage de la station de base suivante lors de la formation de faisceaux.
PCT/CN2022/070349 2021-01-05 2022-01-05 Procédé de retour de canal, procédé de transmission d'informations et dispositif WO2022148380A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110005389.9 2021-01-05
CN202110005389.9A CN114726421A (zh) 2021-01-05 2021-01-05 信道反馈方法、信息传输方法及设备

Publications (2)

Publication Number Publication Date
WO2022148380A1 WO2022148380A1 (fr) 2022-07-14
WO2022148380A9 true WO2022148380A9 (fr) 2022-10-06

Family

ID=82234577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/070349 WO2022148380A1 (fr) 2021-01-05 2022-01-05 Procédé de retour de canal, procédé de transmission d'informations et dispositif

Country Status (2)

Country Link
CN (1) CN114726421A (fr)
WO (1) WO2022148380A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024082194A1 (fr) * 2022-10-19 2024-04-25 北京小米移动软件有限公司 Procédé et appareil de précodage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014052806A1 (fr) * 2012-09-28 2014-04-03 Interdigital Patent Holdings, Inc. Communications sans fil au moyen d'une configuration d'antennes multidimensionnelles
CN112003638A (zh) * 2013-05-10 2020-11-27 华为技术有限公司 确定预编码矩阵指示的方法、用户设备和基站
CN108365877B (zh) * 2017-01-26 2021-06-01 华为技术有限公司 一种码本反馈方法和装置
EP3987678A1 (fr) * 2019-06-19 2022-04-27 Sony Group Corporation Système et procédé de réflexion passive de signaux rf
CN111983560B (zh) * 2020-08-05 2022-12-30 北京理工大学 一种双可重构智能表面辅助的毫米波单基站定位方法

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Publication number Publication date
WO2022148380A1 (fr) 2022-07-14
CN114726421A (zh) 2022-07-08

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