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MX344041B - Metodo para retroalimentar informacion de estado de canal, equipo de usuario, y estacion base. - Google Patents

Metodo para retroalimentar informacion de estado de canal, equipo de usuario, y estacion base.

Info

Publication number
MX344041B
MX344041B MX2015008407A MX2015008407A MX344041B MX 344041 B MX344041 B MX 344041B MX 2015008407 A MX2015008407 A MX 2015008407A MX 2015008407 A MX2015008407 A MX 2015008407A MX 344041 B MX344041 B MX 344041B
Authority
MX
Mexico
Prior art keywords
base station
state information
channel state
precoding matrix
user equipment
Prior art date
Application number
MX2015008407A
Other languages
English (en)
Other versions
MX2015008407A (es
Inventor
Zhou Yongxing
Wang Jianguo
Zhang Leiming
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 MX2015008407A publication Critical patent/MX2015008407A/es
Publication of MX344041B publication Critical patent/MX344041B/es

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
    • H04B7/0621—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
    • H04B7/0413—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
    • H04B7/0456—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
    • H04B7/0619—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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/16—Matrix or vector computation, e.g. matrix-matrix or matrix-vector multiplication, matrix factorization
    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation

Landscapes

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

Abstract

Modalidades de la presente invención proporcionan un método para retroalimentar información de estado de canal, un equipo de usuario, y una estación base, para mejorar la precisión de la retroalimentación de la información de estado de canal; el método incluye: recibir una señal de referencia enviada por una estación base; seleccionar una matriz de precodificación W de un libro de códigos de acuerdo con la señal de referencia, donde un vector de columna de la matriz de precodificacion W se puede expresar como (ver Fórmula) donde a es una constante, ? y ? son fases, y [ ]T indica la transposición de una matriz o vector; y enviar un indicador de matriz de precodificación PMI a la estación base, donde el PMI está correspondiendo a la matriz de precodificación seleccionada W; la presente invención además puede mejorar la precisión de la cuantificación y lograr el equilibrio entre sobrecargas y la precisión de la cuantificación; la estación base ejecuta precodificación en una señal enviada de acuerdo con un indicador de matriz de precodificación retroalimentado, lo cual puede mejorar la precisión de la precodificación, mejorando así una velocidad de transmisión de datos y el rendimiento del sistema.
MX2015008407A 2012-12-27 2012-12-27 Metodo para retroalimentar informacion de estado de canal, equipo de usuario, y estacion base. MX344041B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/087699 WO2014101055A1 (zh) 2012-12-27 2012-12-27 信道状态信息反馈的方法以及一种用户设备和基站

Publications (2)

Publication Number Publication Date
MX2015008407A MX2015008407A (es) 2015-09-23
MX344041B true MX344041B (es) 2016-12-01

Family

ID=51019704

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015008407A MX344041B (es) 2012-12-27 2012-12-27 Metodo para retroalimentar informacion de estado de canal, equipo de usuario, y estacion base.

Country Status (11)

Country Link
US (7) US9438328B2 (es)
EP (5) EP3855638B1 (es)
JP (1) JP6118423B2 (es)
CN (2) CN107689823B (es)
BR (1) BR112015015418B1 (es)
MX (1) MX344041B (es)
MY (1) MY161041A (es)
RU (1) RU2618508C2 (es)
SG (1) SG11201505013UA (es)
WO (1) WO2014101055A1 (es)
ZA (1) ZA201504716B (es)

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Also Published As

Publication number Publication date
SG11201505013UA (en) 2015-08-28
CN107689823B (zh) 2023-10-20
US20220376762A1 (en) 2022-11-24
EP3197070A1 (en) 2017-07-26
US20150304008A1 (en) 2015-10-22
JP2016507951A (ja) 2016-03-10
US20170331542A1 (en) 2017-11-16
EP2947787A4 (en) 2015-11-25
MY161041A (en) 2017-04-14
US20200389217A1 (en) 2020-12-10
US10484069B2 (en) 2019-11-19
EP3588801B1 (en) 2021-02-24
EP3588801A1 (en) 2020-01-01
MX2015008407A (es) 2015-09-23
EP3197070B1 (en) 2019-05-22
US10715239B2 (en) 2020-07-14
BR112015015418A2 (pt) 2017-07-11
US9729222B2 (en) 2017-08-08
EP4170919A1 (en) 2023-04-26
US11831379B2 (en) 2023-11-28
EP2947787A1 (en) 2015-11-25
US20160344465A1 (en) 2016-11-24
RU2618508C2 (ru) 2017-05-04
CN104067533B (zh) 2017-11-17
US9438328B2 (en) 2016-09-06
RU2015130998A (ru) 2017-01-31
EP3855638A1 (en) 2021-07-28
ZA201504716B (en) 2016-05-25
CN104067533A (zh) 2014-09-24
CN107689823A (zh) 2018-02-13
US11431392B2 (en) 2022-08-30
BR112015015418B1 (pt) 2023-02-07
EP3855638B1 (en) 2022-09-28
US20200044713A1 (en) 2020-02-06
EP2947787B1 (en) 2017-02-15
US20190173550A1 (en) 2019-06-06
JP6118423B2 (ja) 2017-04-19
US10230443B2 (en) 2019-03-12
WO2014101055A1 (zh) 2014-07-03

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