BR0312089A - processamento de sinais com decomposição de modo próprio de canal e inversão de canal para sistemas de múltiplas entradas e múltiplas saìdas(mimo) - Google Patents

processamento de sinais com decomposição de modo próprio de canal e inversão de canal para sistemas de múltiplas entradas e múltiplas saìdas(mimo)

Info

Publication number
BR0312089A
BR0312089A BRPI0312089-9A BR0312089A BR0312089A BR 0312089 A BR0312089 A BR 0312089A BR 0312089 A BR0312089 A BR 0312089A BR 0312089 A BR0312089 A BR 0312089A
Authority
BR
Brazil
Prior art keywords
channel
derive
decomposition
minimum
systems
Prior art date
Application number
BRPI0312089-9A
Other languages
English (en)
Inventor
John W Ketchum
Jay Rod Walton
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0312089A publication Critical patent/BR0312089A/pt

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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
    • 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
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0443—Power distribution using multiple eigenmodes utilizing "waterfilling" technique
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • 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
    • 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
    • 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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • 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
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0439—Power distribution using multiple eigenmodes utilizing channel inversion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Radio Transmission System (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Small-Scale Networks (AREA)
  • Transceivers (AREA)

Abstract

PROCESSAMENTO DE SINAIS COM DECOMPOSIçãO DE MODO PRóPRIO DE CANAL E INVERSãO DE CANAL PARA SISTEMAS DE MúLTIPLAS ENTRADAS E MúLTIPLAS SAìDAS (MIMO).Trata-se de técnicas para processar uma transmissão de dados em um transmissor e um receptor, que utilizam decomposição própria de canal, inversão de canal e (opcionalmente) "derramamento de água". No transmissor, (1) a decomposição própria de canal é efetuada de modo a determinar os modos próprios de um canal de múltiplas entradas e múltiplas saídas (MIMO) e de modo a derivar um primeiro conjunto de vetores de direção, (2) a inversão de canal é efetuada de modo a derivar pesos (como, por exemplo, um conjunto para cada modo próprio) utilizados para reduzir ao mínimo a distorção causada pela interferênica intersimbólica (ISI) e (3) o derramento de água pode ser efetuado de modo a derivar valores de graduação indicativos das potências de transmissão alocadas para os modos próprios. O primeiro conjunto de vetores de direção, pesos e valores de graduação é utilizado para derivar uma matriz formatadora de pulso, que é utilizada para pré-condicionar os símbolos de modulação antes do tramissor. No receptor, a decomposição própria de canal é efetuada de modo a derivar um segundo conjunto de vetores de direção, que são utilizados para derivar uma matriz formatadora de pulso, utilizada para condicionar os símbolos recebidos de modo que os fluxos de símbolos ortogonais sejam recuperados.
BRPI0312089-9A 2002-06-24 2003-06-20 processamento de sinais com decomposição de modo próprio de canal e inversão de canal para sistemas de múltiplas entradas e múltiplas saìdas(mimo) BR0312089A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/179,442 US7613248B2 (en) 2002-06-24 2002-06-24 Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems
PCT/US2003/019464 WO2004002047A1 (en) 2002-06-24 2003-06-20 Signal processing with channel eigenmode decomposition and channel inversion for mimo systems

Publications (1)

Publication Number Publication Date
BR0312089A true BR0312089A (pt) 2007-05-29

Family

ID=29734901

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0312089-9A BR0312089A (pt) 2002-06-24 2003-06-20 processamento de sinais com decomposição de modo próprio de canal e inversão de canal para sistemas de múltiplas entradas e múltiplas saìdas(mimo)

Country Status (18)

Country Link
US (2) US7613248B2 (pt)
EP (2) EP1516448B1 (pt)
JP (2) JP4468167B2 (pt)
KR (2) KR20100080950A (pt)
CN (1) CN100459481C (pt)
AT (1) ATE450094T1 (pt)
AU (1) AU2003243679C1 (pt)
BR (1) BR0312089A (pt)
CA (1) CA2490642A1 (pt)
DE (1) DE60330242D1 (pt)
ES (1) ES2335583T3 (pt)
IL (1) IL165939A (pt)
MX (1) MXPA05000097A (pt)
NO (1) NO20050351L (pt)
RU (1) RU2317648C2 (pt)
TW (2) TWI327427B (pt)
UA (1) UA89609C2 (pt)
WO (1) WO2004002047A1 (pt)

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