BR112015018475A2 - método para retroalimentar informações de estado de canal, e terminal - Google Patents

método para retroalimentar informações de estado de canal, e terminal

Info

Publication number
BR112015018475A2
BR112015018475A2 BR112015018475A BR112015018475A BR112015018475A2 BR 112015018475 A2 BR112015018475 A2 BR 112015018475A2 BR 112015018475 A BR112015018475 A BR 112015018475A BR 112015018475 A BR112015018475 A BR 112015018475A BR 112015018475 A2 BR112015018475 A2 BR 112015018475A2
Authority
BR
Brazil
Prior art keywords
information
terminal
status information
feedback
feedback channel
Prior art date
Application number
BR112015018475A
Other languages
English (en)
Inventor
Zhao Jing
Yang Xun
Chen Yijian
Ngok Li Yu
Original Assignee
Zte Corp
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 Zte Corp filed Critical Zte Corp
Publication of BR112015018475A2 publication Critical patent/BR112015018475A2/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
    • 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
    • H04L1/0028—Formatting
    • H04L1/0031—Multiple signaling transmission
    • 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
    • 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
    • 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
    • H04L1/0028—Formatting
    • H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

resumo método para retroalimentar informações de estado de canal, e terminal trata-se de um método e terminal para retroalimentar informações de estado de canal que são aplicados a um sistema de 4 antenas. o método inclui: um terminal que obtém informações de estado de canal, sendo que o terminal realiza uma codificação unida sobre as informações de pmi1 e informações de ri em um relatório de retroalimentação de 4 bits e 5 bits ou realiza uma codificação unida sobre as informações de pmi1 e informações de pmi2 em um relatório de retroalimentação de 4 bits ou as informações de pmi2 com o uso de retroalimentação de 2 bits; e o terminal retroalimenta o relatório de retroalimentação em um canal de controle de enlace ascendente físico. 1/1
BR112015018475A 2013-05-24 2014-03-21 método para retroalimentar informações de estado de canal, e terminal BR112015018475A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310198968.5A CN104184560A (zh) 2013-05-24 2013-05-24 信道状态信息反馈方法和终端
PCT/CN2014/000314 WO2014187146A1 (zh) 2013-05-24 2014-03-21 信道状态信息反馈方法和终端

Publications (1)

Publication Number Publication Date
BR112015018475A2 true BR112015018475A2 (pt) 2017-07-18

Family

ID=51932787

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015018475A BR112015018475A2 (pt) 2013-05-24 2014-03-21 método para retroalimentar informações de estado de canal, e terminal

Country Status (11)

Country Link
US (1) US9800312B2 (pt)
EP (1) EP2955869A4 (pt)
JP (1) JP6073504B2 (pt)
KR (1) KR101896753B1 (pt)
CN (3) CN110830165B (pt)
AU (1) AU2014271098B2 (pt)
BR (1) BR112015018475A2 (pt)
CA (1) CA2899660C (pt)
MX (1) MX355196B (pt)
RU (1) RU2616156C1 (pt)
WO (1) WO2014187146A1 (pt)

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CN110830165B (zh) 2013-05-24 2021-12-21 中兴通讯股份有限公司 信道状态信息反馈方法和终端
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CN106612132B (zh) * 2015-10-16 2021-05-18 电信科学技术研究院 一种信道状态信息的传输方法和装置
CN107181514B (zh) 2016-03-11 2020-09-15 电信科学技术研究院 一种csi反馈方法、预编码方法及装置
CN110545130B (zh) 2016-11-04 2020-08-07 华为技术有限公司 信道状态信息接收方法、用户设备和网络设备
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Also Published As

Publication number Publication date
JP6073504B2 (ja) 2017-02-01
AU2014271098B2 (en) 2016-11-10
EP2955869A1 (en) 2015-12-16
AU2014271098A1 (en) 2015-08-06
US20160065289A1 (en) 2016-03-03
RU2616156C1 (ru) 2017-04-12
WO2014187146A1 (zh) 2014-11-27
CA2899660A1 (en) 2014-11-27
CN104184560A (zh) 2014-12-03
US9800312B2 (en) 2017-10-24
KR101896753B1 (ko) 2018-09-07
KR20160013515A (ko) 2016-02-04
MX355196B (es) 2018-04-09
EP2955869A4 (en) 2016-07-20
MX2015009961A (es) 2015-09-29
CN110830165A (zh) 2020-02-21
CN114257341A (zh) 2022-03-29
CA2899660C (en) 2019-06-11
CN114257341B (zh) 2023-08-29
CN110830165B (zh) 2021-12-21
JP2016511571A (ja) 2016-04-14

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