BR112022012842A2 - Aparelho e método de configuração de matriz de pré-codificação baseada em reciprocidade de canal - Google Patents

Aparelho e método de configuração de matriz de pré-codificação baseada em reciprocidade de canal

Info

Publication number
BR112022012842A2
BR112022012842A2 BR112022012842A BR112022012842A BR112022012842A2 BR 112022012842 A2 BR112022012842 A2 BR 112022012842A2 BR 112022012842 A BR112022012842 A BR 112022012842A BR 112022012842 A BR112022012842 A BR 112022012842A BR 112022012842 A2 BR112022012842 A2 BR 112022012842A2
Authority
BR
Brazil
Prior art keywords
channel reciprocity
terminal
coding matrix
setting
matrix based
Prior art date
Application number
BR112022012842A
Other languages
English (en)
Inventor
Liu Zhengxuan
Gao Qiubin
Li Hui
Original Assignee
Datang mobile communications equipment co ltd
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 Datang mobile communications equipment co ltd filed Critical Datang mobile communications equipment co ltd
Publication of BR112022012842A2 publication Critical patent/BR112022012842A2/pt

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
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • 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
    • H04B7/06—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
    • 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
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Error Detection And Correction (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

APARELHO E MÉTODO DE CONFIGURAÇÃO DE MATRIZ DE PRÉ-CODIFICAÇÃO BASEADA EM RECIPROCIDADE DE CANAL. São revelados um método e aparelho de configuração de matriz de pré-codificação baseada em reciprocidade de canal. O método inclui: na transmissão de enlace descendente, um lado de rede envia separadamente, em cada porta de antena associada a cada camada de transmissão, um CSI-RS submetido à formação de feixe para um terminal usando feixes calculados de acordo com informações de ângulo e informações de atraso determinadas com base em informações de estado de canal de enlace ascendente, e determina uma matriz de pré-codificação para transmissão de enlace descendente do terminal de acordo com os feixes enviados em K0 portas de antena selecionadas pelo terminal com base no CSI-RS, e um conjunto de coeficientes de combinação de feixe.
BR112022012842A 2019-12-30 2020-12-07 Aparelho e método de configuração de matriz de pré-codificação baseada em reciprocidade de canal BR112022012842A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911404709.7A CN113131978B (zh) 2019-12-30 2019-12-30 一种基于信道互易性的预编码矩阵配置方法及装置
PCT/CN2020/134269 WO2021135837A1 (zh) 2019-12-30 2020-12-07 一种基于信道互易性的预编码矩阵配置方法及装置

Publications (1)

Publication Number Publication Date
BR112022012842A2 true BR112022012842A2 (pt) 2022-09-06

Family

ID=76686426

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022012842A BR112022012842A2 (pt) 2019-12-30 2020-12-07 Aparelho e método de configuração de matriz de pré-codificação baseada em reciprocidade de canal

Country Status (9)

Country Link
US (2) US11901979B2 (pt)
EP (1) EP4087151A4 (pt)
JP (1) JP7413544B2 (pt)
KR (1) KR20220120667A (pt)
CN (1) CN113131978B (pt)
BR (1) BR112022012842A2 (pt)
MX (1) MX2022008053A (pt)
TW (2) TWI795336B (pt)
WO (1) WO2021135837A1 (pt)

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US11909472B2 (en) * 2021-11-16 2024-02-20 Samsung Electronics Co., Ltd Method and apparatus for selection of linear combination coefficients for precoding in frequency-selective channels
CN114448757A (zh) * 2022-01-21 2022-05-06 华中科技大学 Fdd大规模mimo系统中基于信道部分互易性的信道估计方法
CN116846431A (zh) * 2022-03-22 2023-10-03 北京紫光展锐通信技术有限公司 用于多传输接收点trp的码本反馈、确定方法及装置
WO2023206047A1 (zh) * 2022-04-25 2023-11-02 北京小米移动软件有限公司 信道状态信息csi上报方法和装置
CN117321925A (zh) * 2022-04-27 2023-12-29 北京小米移动软件有限公司 Csi的上报方法、预编码矩阵的确定方法、装置及设备
CN117254839A (zh) * 2022-06-10 2023-12-19 中兴通讯股份有限公司 信道状态参考信号的波束赋形方法、装置及存储介质
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CN103095356B (zh) * 2011-11-04 2015-09-23 上海瀚讯无线技术有限公司 一种波束成形方法、基站和交通运输装置
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Also Published As

Publication number Publication date
KR20220120667A (ko) 2022-08-30
TWI782367B (zh) 2022-11-01
TW202304159A (zh) 2023-01-16
JP2023509924A (ja) 2023-03-10
US11901979B2 (en) 2024-02-13
WO2021135837A1 (zh) 2021-07-08
EP4087151A1 (en) 2022-11-09
US20240146364A1 (en) 2024-05-02
CN113131978B (zh) 2022-04-19
MX2022008053A (es) 2022-07-27
TW202125991A (zh) 2021-07-01
US20230009991A1 (en) 2023-01-12
TWI795336B (zh) 2023-03-01
JP7413544B2 (ja) 2024-01-15
CN113131978A (zh) 2021-07-16
EP4087151A4 (en) 2023-01-18

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