BR112022015632A2 - Método de retroalimentação de informações de estado de canal, dispositivo, terminal e lado de rede, e mídia de armazenamento. - Google Patents

Método de retroalimentação de informações de estado de canal, dispositivo, terminal e lado de rede, e mídia de armazenamento.

Info

Publication number
BR112022015632A2
BR112022015632A2 BR112022015632A BR112022015632A BR112022015632A2 BR 112022015632 A2 BR112022015632 A2 BR 112022015632A2 BR 112022015632 A BR112022015632 A BR 112022015632A BR 112022015632 A BR112022015632 A BR 112022015632A BR 112022015632 A2 BR112022015632 A2 BR 112022015632A2
Authority
BR
Brazil
Prior art keywords
network side
beamforming
terminal
channel
csi
Prior art date
Application number
BR112022015632A
Other languages
English (en)
Inventor
Zhengxuan Liu
Qiubin Gao
Hui Li
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 BR112022015632A2 publication Critical patent/BR112022015632A2/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
    • H04B7/06—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
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam 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
    • H04B7/0413—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
    • H04B7/0658—Feedback reduction
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

MÉTODO DE RETROALIMENTAÇÃO DE INFORMAÇÕES DE ESTADO DE CANAL, DISPOSITIVO, TERMINAL E LADO DE REDE, E MÍDIA DE ARMAZENAMENTO. São fornecidos, nas modalidades do presente pedido, um método, dispositivo de retroalimentação de informações de estado de canal, terminal e lado de rede e uma mídia de armazenamento. O método compreende: receber um CSI-RS para a formação de feixes que é enviado por um lado de rede por meio de uma porta de antena, ou um CSI-RS para a formação de feixes e informações de indicação de vetor de base de domínio de frequência, em que o feixe usado na formação de feixes é determinado com base em um vetor de base de domínio espacial ou com base no vetor de base de domínio espacial e no vetor de base de domínio de frequência, e o vetor de base de domínio espacial e o vetor de base de domínio de frequência são determinados com base em um canal de enlace ascendente; com base no CSI-RS para a formação de feixes, ou o CSI-RS para a formação de feixes e as informações de indicação de vetor de base de domínio de frequência, determinar informações de indicação de porta e um coeficiente de combinação de porta para a transmissão de dados; e retroalimentar as informações de indicação de porta e coeficiente de combinação de porta em relação ao lado de rede para o lado de rede para determinar a pré-conversão em código de dados de transmissão de enlace descendente. O método, dispositivo, terminal, lado de rede e mídia de armazenamento fornecidos pelas modalidades do presente pedido reduzem a complexidade computacional, reduzem a sobrecarga de retroalimentação e aprimoram o desempenho do sistema.
BR112022015632A 2020-02-10 2021-02-09 Método de retroalimentação de informações de estado de canal, dispositivo, terminal e lado de rede, e mídia de armazenamento. BR112022015632A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202010085292 2020-02-10
CN202110152398.0A CN113258974B (zh) 2020-02-10 2021-02-03 信道状态信息反馈方法、装置、终端、网络侧和存储介质
PCT/CN2021/076244 WO2021160122A1 (zh) 2020-02-10 2021-02-09 信道状态信息反馈方法、装置、终端、网络侧和存储介质

Publications (1)

Publication Number Publication Date
BR112022015632A2 true BR112022015632A2 (pt) 2022-09-27

Family

ID=77180875

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022015632A BR112022015632A2 (pt) 2020-02-10 2021-02-09 Método de retroalimentação de informações de estado de canal, dispositivo, terminal e lado de rede, e mídia de armazenamento.

Country Status (8)

Country Link
US (1) US20230075037A1 (pt)
EP (1) EP4106221A4 (pt)
JP (1) JP2023513713A (pt)
KR (1) KR20220131993A (pt)
CN (1) CN113258974B (pt)
BR (1) BR112022015632A2 (pt)
MX (1) MX2022009173A (pt)
WO (1) WO2021160122A1 (pt)

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EP4320734A1 (en) * 2021-05-10 2024-02-14 Apple Inc. Methods and apparatus for configuring w1, w2, and wf for port selection codebook enhancement
CN114710188A (zh) * 2022-02-28 2022-07-05 华为技术有限公司 一种传输方法及装置
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
WO2024016366A1 (zh) * 2022-07-22 2024-01-25 北京小米移动软件有限公司 Sd-fd基对的指示信息的发送接收方法、装置及系统
WO2024065832A1 (zh) * 2022-09-30 2024-04-04 北京小米移动软件有限公司 信息发送、接收方法和装置、通信装置及存储介质

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Publication number Priority date Publication date Assignee Title
US9973249B2 (en) * 2014-12-23 2018-05-15 Samsung Electronics Co., Ltd. Channel state information feedback schemes for FD-MIMO
KR102335741B1 (ko) * 2015-08-13 2021-12-06 삼성전자주식회사 이동 통신 시스템에서 빔포밍된 csi-rs를 이용하는 통신 기법
CN106941367A (zh) * 2016-01-04 2017-07-11 中兴通讯股份有限公司 多输入多输出mimo的处理方法及装置
CN107294644A (zh) * 2016-03-31 2017-10-24 株式会社Ntt都科摩 参考信号发送方法、信道状态信息反馈方法、基站和移动台
US10693543B2 (en) * 2016-09-30 2020-06-23 Huawei Technologies Co., Ltd. Beamforming-based transmission method and apparatus
CN108155922A (zh) * 2016-12-05 2018-06-12 中国电信股份有限公司 基于波束赋形的csi反馈方法及装置
CN107980209B (zh) * 2017-02-16 2021-06-25 香港应用科技研究院有限公司 大规模mimo通信系统中报告信道状态信息(csi)的方法和装置
CN108540190A (zh) * 2017-03-06 2018-09-14 北京信威通信技术股份有限公司 波束赋形方法和装置
US10868603B2 (en) * 2018-03-09 2020-12-15 Samsung Electronics Co., Ltd. Method and apparatus to enable CSI reporting based on space-frequency compression
EP3576312A1 (en) * 2018-05-30 2019-12-04 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Doppler-delay codebook-based precoding and csi reporting for wireless communications systems
CN113037345A (zh) * 2018-07-26 2021-06-25 华为技术有限公司 信道估计方法和装置
CN113131978B (zh) * 2019-12-30 2022-04-19 大唐移动通信设备有限公司 一种基于信道互易性的预编码矩阵配置方法及装置

Also Published As

Publication number Publication date
EP4106221A4 (en) 2024-03-06
JP2023513713A (ja) 2023-04-03
WO2021160122A1 (zh) 2021-08-19
MX2022009173A (es) 2022-08-17
EP4106221A1 (en) 2022-12-21
US20230075037A1 (en) 2023-03-09
CN113258974A (zh) 2021-08-13
CN113258974B (zh) 2022-12-30
KR20220131993A (ko) 2022-09-29

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