JP5323353B2 - 拡張型複数アンテナ通信システム内の効率向上のための方法および装置 - Google Patents

拡張型複数アンテナ通信システム内の効率向上のための方法および装置 Download PDF

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JP5323353B2
JP5323353B2 JP2007531361A JP2007531361A JP5323353B2 JP 5323353 B2 JP5323353 B2 JP 5323353B2 JP 2007531361 A JP2007531361 A JP 2007531361A JP 2007531361 A JP2007531361 A JP 2007531361A JP 5323353 B2 JP5323353 B2 JP 5323353B2
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tones
communication system
antenna communication
transmitter
fft
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Japanese (ja)
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JP2008512962A (ja
JP2008512962A5 (enExample
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ムタバ，シエド，アオン
ワン，シオウェン
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Agere Systems LLC
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Agere Systems LLC
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    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04B7/12—Frequency diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference 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
    • H04B7/06—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
JP2007531361A 2004-09-09 2005-09-06 拡張型複数アンテナ通信システム内の効率向上のための方法および装置 Expired - Fee Related JP5323353B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US60847204P 2004-09-09 2004-09-09
US60/608,472 2004-09-09
US11/122,147 2005-05-04
US11/122,147 US7366250B2 (en) 2004-09-09 2005-05-04 Method and apparatus for improved efficiency in an extended multiple antenna communication system
PCT/US2005/032152 WO2006029313A1 (en) 2004-09-09 2005-09-06 Method and apparatus for improved efficiency in an extended multiple antenna communication system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2012162412A Division JP2012253788A (ja) 2004-09-09 2012-07-23 拡張型複数アンテナ通信システム内の効率向上のための方法及び装置

Publications (3)

Publication Number Publication Date
JP2008512962A JP2008512962A (ja) 2008-04-24
JP2008512962A5 JP2008512962A5 (enExample) 2008-10-23
JP5323353B2 true JP5323353B2 (ja) 2013-10-23

Family

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JP2007531361A Expired - Fee Related JP5323353B2 (ja) 2004-09-09 2005-09-06 拡張型複数アンテナ通信システム内の効率向上のための方法および装置
JP2012162412A Pending JP2012253788A (ja) 2004-09-09 2012-07-23 拡張型複数アンテナ通信システム内の効率向上のための方法及び装置

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JP2012162412A Pending JP2012253788A (ja) 2004-09-09 2012-07-23 拡張型複数アンテナ通信システム内の効率向上のための方法及び装置

Country Status (4)

Country Link
US (1) US7366250B2 (enExample)
EP (1) EP1794969B1 (enExample)
JP (2) JP5323353B2 (enExample)
WO (1) WO2006029313A1 (enExample)

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US7742390B2 (en) * 2005-08-23 2010-06-22 Agere Systems Inc. Method and apparatus for improved long preamble formats in a multiple antenna communication system
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Publication number Publication date
JP2012253788A (ja) 2012-12-20
JP2008512962A (ja) 2008-04-24
EP1794969B1 (en) 2012-08-01
EP1794969A1 (en) 2007-06-13
WO2006029313A1 (en) 2006-03-16
US7366250B2 (en) 2008-04-29
US20060250943A1 (en) 2006-11-09

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