BRPI1014172A2 - método e aparelho para controle de transmissão de enlace descendente de múltiplas entradas e múltiplas saídas - Google Patents

método e aparelho para controle de transmissão de enlace descendente de múltiplas entradas e múltiplas saídas

Info

Publication number
BRPI1014172A2
BRPI1014172A2 BRPI1014172A BRPI1014172A BRPI1014172A2 BR PI1014172 A2 BRPI1014172 A2 BR PI1014172A2 BR PI1014172 A BRPI1014172 A BR PI1014172A BR PI1014172 A BRPI1014172 A BR PI1014172A BR PI1014172 A2 BRPI1014172 A2 BR PI1014172A2
Authority
BR
Brazil
Prior art keywords
downlink transmission
mode
closed loop
user
channel
Prior art date
Application number
BRPI1014172A
Other languages
English (en)
Inventor
Zhang Gong
Liu Jianneng
Huang Kaibin
Cheng Yong
Long Yi
Original Assignee
Huawei Tech 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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BRPI1014172A2 publication Critical patent/BRPI1014172A2/pt
Publication of BRPI1014172B1 publication Critical patent/BRPI1014172B1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/391—Modelling the propagation channel
    • H04B17/3911—Fading models or fading generators
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Transmitters (AREA)
  • Studio Circuits (AREA)

Abstract

método e aparelho para controle de transmissão de enlace descendente de múltiplas entradas e múltiplas saídas um método de controle de transmissão de enlace descendente de múltiplas entradas - múltiplas saída (mimo) que está relacionado com tecnologias de comunicação é divulgado em modalidades da presente invenção. o método inclui: obter um canal de taxa de variação de desvanecimento e um atraso de retorno de um usuário; calcular um circuito fechado de ganho de rendimento mimo de acordo com a taxa de mudança de canal desvanecimento e o atraso de retorno; e determinar um modo de transmissão de enlace descendente de acordo com o loop fechado de ganho de rendimento mimo, onde o modo de transmissão de enlace descendente inclui um modo de circuito fechado ou um modo de circuito aberto. um aparelho de controle de transmissão de enlace descendente mimo também é divulgado. nas modalidades da presente invenção, um modo de transmissão de enlace descendente é selecionado de acordo com a taxa de mudança de canal de desvanecimento (ou seja, mobilidade) e o atraso de retorno do usuário e, portanto, diferentes modos de operação (um modo de circuito aberto e um modo de circuito fechado) são suportados simultaneamente para facilitar a transmissão de multi-usuário comum, e a taxa de transferência de enlace descendente é aumentada pelo uso da diferença de mobilidade entre os usuários.
BRPI1014172-3A 2009-04-21 2010-04-20 método e aparelho para controle de transmissão de enlace descendente de múltiplas entradas e múltiplas saídas BRPI1014172B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN200910130992.9 2009-04-21
CN2009101309929A CN101873159B (zh) 2009-04-21 2009-04-21 一种多输入多输出下行传输控制方法及装置
PCT/CN2010/071909 WO2010121537A1 (zh) 2009-04-21 2010-04-20 一种多输入多输出下行传输控制方法及装置

Publications (2)

Publication Number Publication Date
BRPI1014172A2 true BRPI1014172A2 (pt) 2019-04-16
BRPI1014172B1 BRPI1014172B1 (pt) 2021-02-23

Family

ID=42997842

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI1014172-3A BRPI1014172B1 (pt) 2009-04-21 2010-04-20 método e aparelho para controle de transmissão de enlace descendente de múltiplas entradas e múltiplas saídas

Country Status (6)

Country Link
US (1) US8611244B2 (pt)
EP (1) EP2416502B1 (pt)
CN (1) CN101873159B (pt)
BR (1) BRPI1014172B1 (pt)
ES (1) ES2489117T3 (pt)
WO (1) WO2010121537A1 (pt)

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CN102771062B (zh) * 2012-04-11 2014-12-03 华为技术有限公司 一种传输模式配置方法和装置
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CN109150348B (zh) * 2018-08-28 2021-03-16 合肥工业大学 一种莱斯因子矩估计方法及无线信道莱斯因子矩实现系统

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CN101873159B (zh) 2009-04-21 2013-01-16 华为技术有限公司 一种多输入多输出下行传输控制方法及装置

Also Published As

Publication number Publication date
EP2416502B1 (en) 2014-06-11
CN101873159A (zh) 2010-10-27
CN101873159B (zh) 2013-01-16
ES2489117T3 (es) 2014-09-01
BRPI1014172B1 (pt) 2021-02-23
EP2416502A4 (en) 2012-04-18
US20120093016A1 (en) 2012-04-19
WO2010121537A1 (zh) 2010-10-28
US8611244B2 (en) 2013-12-17
EP2416502A1 (en) 2012-02-08

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B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: H04B 7/04

Ipc: H04B 17/391 (2015.01), H04B 7/0413 (2017.01), H04B

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 23/02/2021, OBSERVADAS AS CONDICOES LEGAIS.