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MX2013004708A - Metodo y dispositivo para realimentar informacion de realimentacion de canal de enlace descendente, y metodo y dispositivo para unificacion de usuarios. - Google Patents

Metodo y dispositivo para realimentar informacion de realimentacion de canal de enlace descendente, y metodo y dispositivo para unificacion de usuarios.

Info

Publication number
MX2013004708A
MX2013004708A MX2013004708A MX2013004708A MX2013004708A MX 2013004708 A MX2013004708 A MX 2013004708A MX 2013004708 A MX2013004708 A MX 2013004708A MX 2013004708 A MX2013004708 A MX 2013004708A MX 2013004708 A MX2013004708 A MX 2013004708A
Authority
MX
Mexico
Prior art keywords
user
feedback information
downlink channel
channel feedback
feeding back
Prior art date
Application number
MX2013004708A
Other languages
English (en)
Inventor
Chao Wang
Qimei Cui
Shiyuan Li
Xiaofeng Tao
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of MX2013004708A publication Critical patent/MX2013004708A/es

Links

Classifications

    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • 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
    • H04B7/0417—Feedback systems
    • 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
    • H04B7/0452—Multi-user MIMO systems
    • 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
    • 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
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04B7/06—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
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector

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)

Abstract

Se describen un método y dispositivo para realimentar información de realimentación de canal de enlace descendente, y un método y dispositivo para unificación de usuarios. El método para realimentar información de realimentación de canal de enlace descendente incluye: calcular el error de indicación de calidad de canal de varios usuarios de un usuario, cuyo error se utiliza para reflejar la diferencia en indicación de calidad de canal entre la situación de transmisión de múltiple entrada múltiple salida de varios usuarios y la situación de transmisión de múltiple entrada múltiple salida de un solo usuario; agregar el error de indicación de calidad de canal de varios usuarios en la información de realimentación de canal de enlace descendente que incluye una indicación de matriz de precodificación y una indicación de calidad de canal, y realimentar la misma a una estación base para programación. Por lo tanto, la proporción de bits erróneos de la desmodulación del sistema MIMO puede reducirse y puede mejorarse el rendimiento de sistema.
MX2013004708A 2010-11-05 2011-10-21 Metodo y dispositivo para realimentar informacion de realimentacion de canal de enlace descendente, y metodo y dispositivo para unificacion de usuarios. MX2013004708A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010544399.1A CN102468939B (zh) 2010-11-05 2010-11-05 下行信道反馈信息反馈方法和装置及用户配对方法和装置
PCT/CN2011/081111 WO2012059009A1 (zh) 2010-11-05 2011-10-21 下行信道反馈信息反馈方法和装置及用户配对方法和装置

Publications (1)

Publication Number Publication Date
MX2013004708A true MX2013004708A (es) 2013-05-22

Family

ID=46024012

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2013004708A MX2013004708A (es) 2010-11-05 2011-10-21 Metodo y dispositivo para realimentar informacion de realimentacion de canal de enlace descendente, y metodo y dispositivo para unificacion de usuarios.

Country Status (12)

Country Link
US (3) US10298297B2 (es)
EP (2) EP2637340B1 (es)
JP (1) JP5549785B2 (es)
KR (1) KR20130087551A (es)
CN (1) CN102468939B (es)
AU (2) AU2011325625B2 (es)
BR (1) BR112013010368A2 (es)
CA (1) CA2815711A1 (es)
MX (1) MX2013004708A (es)
RU (1) RU2013125764A (es)
WO (1) WO2012059009A1 (es)
ZA (1) ZA201303230B (es)

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Also Published As

Publication number Publication date
ZA201303230B (en) 2013-09-25
US20130201862A1 (en) 2013-08-08
US20190222269A1 (en) 2019-07-18
AU2016200309B2 (en) 2018-02-22
EP2637340B1 (en) 2020-03-04
EP2637340A4 (en) 2017-06-14
US20210288695A1 (en) 2021-09-16
KR20130087551A (ko) 2013-08-06
JP2013546241A (ja) 2013-12-26
RU2013125764A (ru) 2014-12-10
CA2815711A1 (en) 2012-05-10
WO2012059009A1 (zh) 2012-05-10
BR112013010368A2 (pt) 2016-08-02
AU2011325625B2 (en) 2015-11-26
CN102468939A (zh) 2012-05-23
US11043991B2 (en) 2021-06-22
AU2011325625A1 (en) 2013-05-02
US10298297B2 (en) 2019-05-21
EP3661087A1 (en) 2020-06-03
AU2016200309A1 (en) 2016-02-11
JP5549785B2 (ja) 2014-07-16
CN102468939B (zh) 2015-07-08
EP2637340A1 (en) 2013-09-11

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