AR072413A1 - Metodo y aparato para efectuar comunicaciones inalambricas de multiples entradas y salidas - Google Patents

Metodo y aparato para efectuar comunicaciones inalambricas de multiples entradas y salidas

Info

Publication number
AR072413A1
AR072413A1 ARP090102427A ARP090102427A AR072413A1 AR 072413 A1 AR072413 A1 AR 072413A1 AR P090102427 A ARP090102427 A AR P090102427A AR P090102427 A ARP090102427 A AR P090102427A AR 072413 A1 AR072413 A1 AR 072413A1
Authority
AR
Argentina
Prior art keywords
mimo
wtru
precoding matrix
precoding
manual
Prior art date
Application number
ARP090102427A
Other languages
English (en)
Inventor
Kyle Jung-Lin Pan
Donald M Grieco
Sung-Hyuk Shin
Erdem Bala
Philip Pietraski
Original Assignee
Interdigital Tech 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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of AR072413A1 publication Critical patent/AR072413A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • 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
    • H04B7/06—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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H04L2025/03802—Signalling on the reverse channel
    • H04L2025/03808—Transmission of equaliser coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0248—Eigen-space methods
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Abstract

Se describen un método y un aparato para llevar a cabo comunicaciones inalámbricas multiple entrada multiple salida (MIMO). Un nodo B puede recibir un índice para una matriz precodificadora en un manual de codigos de precodificacion MIMO de unico usuario (SU-MIMO), proveniente de unidades de transmision/recepcion inalámbricas (WTRU) y, en forma adaptativa, llevar a cabo SU-MIMO o MIMO de multiples usuarios (MU-MIMO), besándose en un criterio predeterminado. La informacion sobre el canal para llevar a cabo MU-MIMO puede obtenerse basándose en la matriz precodificadora del manual de codigos de precodificacion de SU-MIMO. Es posible invalidar un rango solicitado por la WTRU, si el manual de codigos MU-MIMO unitario es un subconjunto del manual de codigos precodificacion de SU-MIMO. En caso contrario, se puede seleccionar una matriz precodificadora de MU-MIMO que tenga la mayor correlacion posible respecto de la matriz precodificadora. Una WTRU puede enviar una matriz precodificadora para la transmision a la WTRU, junto con una matriz de interferencia preferida. Una WTRU puede enviar informacion de rangos y multiple vectores singulares de la derecha para MU-MIMO.
ARP090102427A 2008-06-30 2009-06-30 Metodo y aparato para efectuar comunicaciones inalambricas de multiples entradas y salidas AR072413A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7698308P 2008-06-30 2008-06-30

Publications (1)

Publication Number Publication Date
AR072413A1 true AR072413A1 (es) 2010-08-25

Family

ID=41403107

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP090102427A AR072413A1 (es) 2008-06-30 2009-06-30 Metodo y aparato para efectuar comunicaciones inalambricas de multiples entradas y salidas

Country Status (4)

Country Link
US (1) US20090323849A1 (es)
AR (1) AR072413A1 (es)
TW (1) TW201001950A (es)
WO (1) WO2010002691A2 (es)

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Also Published As

Publication number Publication date
US20090323849A1 (en) 2009-12-31
WO2010002691A2 (en) 2010-01-07
WO2010002691A3 (en) 2010-03-25
TW201001950A (en) 2010-01-01

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