BRPI0508413A - transmissão de piloto e estimativa de canal para sistema miso e mimo - Google Patents

transmissão de piloto e estimativa de canal para sistema miso e mimo

Info

Publication number
BRPI0508413A
BRPI0508413A BRPI0508413-0A BRPI0508413A BRPI0508413A BR PI0508413 A BRPI0508413 A BR PI0508413A BR PI0508413 A BRPI0508413 A BR PI0508413A BR PI0508413 A BRPI0508413 A BR PI0508413A
Authority
BR
Brazil
Prior art keywords
composite
miso
pilots
derives
channel
Prior art date
Application number
BRPI0508413-0A
Other languages
English (en)
Inventor
Tamer Kadous
Avneesh Agrawal
Dhananjay Ashok Gore
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 BRPI0508413A publication Critical patent/BRPI0508413A/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
    • H04B7/06—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
    • H04B7/0684—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 using different training sequences per antenna
    • 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
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2621—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using frequency division multiple access [FDMA]
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)

Abstract

TRANSMISSãO DE PILOTO E ESTIMATIVA DE CANAL PARA SISTEMA MISO E MIMO Um transmissor gera múltiplos pilotos compósitos com uma matriz de treinamento e uma matriz de ganho. Cada piloto compósito inclui múltiplos pilotos de treinamento gerados com múltiplas colunas da matriz de treinamento e ajustados com múltiplos elementos de ganho em uma coluna da matriz de ganho. O transmissor transmite cada piloto compósito através de múltiplas antenas de transmissão. Um receptor MISO obtém símbolos recebidos para os múltiplos pilotos compósitos e deriva uma estimativa de um canal MISO compósito. Para OFDM, o receptor MISO deriva uma estimativa de resposta de impulso inicial para cada piloto compósito, filtra as estimativas de resposta de impulso iniciais para todos os pilotos compósitos, e deriva uma estimativa de resposta de freqüência para o canal MISO compósito. Um receptor MIMO obtém e processa símbolos recebidos para os múltiplos pilotos compósitos com base nas matrizes de treinamento e gaho e deriva estimativas de canal para canais SISO individuais entre as múltiplas antenas de transmissão e múltiplas antenas de recepção.
BRPI0508413-0A 2004-03-05 2005-03-02 transmissão de piloto e estimativa de canal para sistema miso e mimo BRPI0508413A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US55089304P 2004-03-05 2004-03-05
US11/020,888 US8077691B2 (en) 2004-03-05 2004-12-22 Pilot transmission and channel estimation for MISO and MIMO receivers in a multi-antenna system
PCT/US2005/006906 WO2005094023A1 (en) 2004-03-05 2005-03-02 Pilot transmission and channel estimation for miso and mimo system

Publications (1)

Publication Number Publication Date
BRPI0508413A true BRPI0508413A (pt) 2007-07-24

Family

ID=34914695

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0508413-0A BRPI0508413A (pt) 2004-03-05 2005-03-02 transmissão de piloto e estimativa de canal para sistema miso e mimo

Country Status (15)

Country Link
US (1) US8077691B2 (pt)
EP (1) EP1726136A1 (pt)
JP (1) JP4505499B2 (pt)
KR (2) KR100887606B1 (pt)
CN (1) CN1951077B (pt)
AR (1) AR047997A1 (pt)
AU (1) AU2005226570A1 (pt)
BR (1) BRPI0508413A (pt)
CA (1) CA2558557C (pt)
IL (1) IL177882A0 (pt)
MX (1) MXPA06010068A (pt)
RU (2) RU2347315C2 (pt)
SG (1) SG153799A1 (pt)
TW (1) TWI404355B (pt)
WO (1) WO2005094023A1 (pt)

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US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7151809B2 (en) 2002-10-25 2006-12-19 Qualcomm, Incorporated Channel estimation and spatial processing for TDD MIMO systems
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US7385617B2 (en) * 2003-05-07 2008-06-10 Illinois Institute Of Technology Methods for multi-user broadband wireless channel estimation
US7065144B2 (en) * 2003-08-27 2006-06-20 Qualcomm Incorporated Frequency-independent spatial processing for wideband MISO and MIMO systems

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IL177882A0 (en) 2006-12-31
CN1951077A (zh) 2007-04-18
AR047997A1 (es) 2006-03-15
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CA2558557A1 (en) 2005-10-06
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CN1951077B (zh) 2012-08-29
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US20050195763A1 (en) 2005-09-08
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US8077691B2 (en) 2011-12-13
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JP4505499B2 (ja) 2010-07-21
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KR100887606B1 (ko) 2009-03-11

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