ATE458340T1 - Mehrstrom-fft für mimo-ofdm-systeme - Google Patents

Mehrstrom-fft für mimo-ofdm-systeme

Info

Publication number
ATE458340T1
ATE458340T1 AT05755928T AT05755928T ATE458340T1 AT E458340 T1 ATE458340 T1 AT E458340T1 AT 05755928 T AT05755928 T AT 05755928T AT 05755928 T AT05755928 T AT 05755928T AT E458340 T1 ATE458340 T1 AT E458340T1
Authority
AT
Austria
Prior art keywords
fft
mimo
delay element
input data
processing
Prior art date
Application number
AT05755928T
Other languages
English (en)
Inventor
Ludwig Schwoerer
Ernst Zielinski
Original Assignee
Nokia 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 Nokia Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE458340T1 publication Critical patent/ATE458340T1/de

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
    • 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
    • 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H04L27/2651—Modification of fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators for performance improvement

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Complex Calculations (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radio Transmission System (AREA)
AT05755928T 2005-06-30 2005-06-30 Mehrstrom-fft für mimo-ofdm-systeme ATE458340T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2005/001867 WO2007003977A1 (en) 2005-06-30 2005-06-30 Multi-stream fft for mimo-ofdm systems

Publications (1)

Publication Number Publication Date
ATE458340T1 true ATE458340T1 (de) 2010-03-15

Family

ID=35841747

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05755928T ATE458340T1 (de) 2005-06-30 2005-06-30 Mehrstrom-fft für mimo-ofdm-systeme

Country Status (6)

Country Link
US (1) US7552161B2 (de)
EP (1) EP1897310B1 (de)
CN (1) CN101069398B (de)
AT (1) ATE458340T1 (de)
DE (1) DE602005019481D1 (de)
WO (1) WO2007003977A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100607858B1 (ko) * 2004-12-31 2006-08-08 삼성전자주식회사 이동통신단말기에서 사용주파수 대역의 잡음을 제거하기위한 장치 및 방법
US7827225B2 (en) * 2005-01-21 2010-11-02 Texas Instruments Incorporated Methods and systems for a multi-channel Fast Fourier Transform (FFT)
US20100082722A1 (en) * 2008-09-26 2010-04-01 Sinnokrot Mohanned O Methods and Apparatuses for Detection and Estimation with Fast Fourier Transform (FFT) in Orthogonal Frequency Division Multiplexing (OFDM) Communication Systems
CN101860508B (zh) * 2009-04-13 2013-01-16 中兴通讯股份有限公司 一种fft变换的复用装置及方法
US9317481B2 (en) * 2011-12-31 2016-04-19 Institute Of Automation, Chinese Academy Of Sciences Data access method and device for parallel FFT computation
WO2013097217A1 (zh) * 2011-12-31 2013-07-04 中国科学院自动化研究所 一种多粒度并行fft蝶形计算的方法及相应的装置
CN103905364B (zh) * 2012-12-28 2018-07-20 联芯科技有限公司 一种lte/lte-a下行时频转换的系统及方法
CN103605636B (zh) * 2013-12-09 2016-09-14 中国科学院微电子研究所 一种实现fft运算的装置及方法
CN105917592B (zh) 2014-01-22 2019-09-03 华为技术有限公司 信息处理装置、网络节点和信息处理方法
CN105022854A (zh) * 2014-07-28 2015-11-04 东莞市鼎先激光科技股份有限公司 一种激光器的设计方法
CN104778025B (zh) * 2015-04-16 2017-12-01 浪潮电子信息产业股份有限公司 基于随机访问存储器的先入先出存储器的电路结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60325921D1 (de) * 2002-08-22 2009-03-12 Imec Inter Uni Micro Electr Verfahren zur MIMO-Übertragung für mehrere Benutzer und entsprechende Vorrichtungen
US20040059766A1 (en) * 2002-09-23 2004-03-25 Yeou-Min Yeh Pipelined low complexity FFT/IFFT processor
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7827225B2 (en) * 2005-01-21 2010-11-02 Texas Instruments Incorporated Methods and systems for a multi-channel Fast Fourier Transform (FFT)

Also Published As

Publication number Publication date
EP1897310B1 (de) 2010-02-17
DE602005019481D1 (de) 2010-04-01
CN101069398B (zh) 2013-07-10
CN101069398A (zh) 2007-11-07
US7552161B2 (en) 2009-06-23
US20080256159A1 (en) 2008-10-16
EP1897310A1 (de) 2008-03-12
WO2007003977A1 (en) 2007-01-11

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