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WO1998019410A3 - Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing - Google Patents

Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing Download PDF

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Publication number
WO1998019410A3
WO1998019410A3 PCT/US1997/018911 US9718911W WO9819410A3 WO 1998019410 A3 WO1998019410 A3 WO 1998019410A3 US 9718911 W US9718911 W US 9718911W WO 9819410 A3 WO9819410 A3 WO 9819410A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency division
division multiplexing
single chip
orthogonal frequency
digital receiver
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1997/018911
Other languages
French (fr)
Other versions
WO1998019410A2 (en
Inventor
Dawood Alam
Matthew James Collins
David Huw Davies
Peter Anthony Keevill
John Matthew Nolan
Thomas Foxcroft
Jonathan Parker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Discovision Associates
Original Assignee
Discovision Associates
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
Priority claimed from GBGB9622728.5A external-priority patent/GB9622728D0/en
Application filed by Discovision Associates filed Critical Discovision Associates
Priority to JP52054998A priority Critical patent/JP2001527706A/en
Priority to BR9712722-1A priority patent/BR9712722A/en
Priority to IL12965597A priority patent/IL129655A0/en
Priority to EP97946266A priority patent/EP0938795A2/en
Priority to CA002270149A priority patent/CA2270149A1/en
Priority to AU51471/98A priority patent/AU727726B2/en
Publication of WO1998019410A2 publication Critical patent/WO1998019410A2/en
Publication of WO1998019410A3 publication Critical patent/WO1998019410A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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
    • 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
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Superheterodyne Receivers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Complex Calculations (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

The invention provides a single chip implementation of a digital receiver for multicarrier signals that are transmitted by orthogonal frequency division multiplexing. Improved channel estimation and correction circuitry are provided. The receiver has highly accurate sampling rate control and frequecy control circuitry. BCH decoding of tps data carriers is achieved with minimal resources with an arrangement that includes a small Galois field multiplier. An improved FFT window synchronization circuit is coupled to the resampling circuit for locating the boundary of the guard interval transmitted with the active frame of the signal. A real-time pipelined FFT processor is operationally associated with the FFT window synchronization circuit and operates with reduced memory requirements.
PCT/US1997/018911 1996-10-31 1997-10-22 Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing Ceased WO1998019410A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP52054998A JP2001527706A (en) 1996-10-31 1997-10-22 Single-chip VLSI implementation of digital receiver using orthogonal frequency division multiplexing
BR9712722-1A BR9712722A (en) 1996-10-31 1997-10-22 Digital receiver for multiport signals, and, process to estimate a channel's frequency response.
IL12965597A IL129655A0 (en) 1996-10-31 1997-10-22 Digital receiver
EP97946266A EP0938795A2 (en) 1996-10-31 1997-10-22 Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing
CA002270149A CA2270149A1 (en) 1996-10-31 1997-10-22 Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing
AU51471/98A AU727726B2 (en) 1996-10-31 1997-10-22 Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9622728.5A GB9622728D0 (en) 1996-10-31 1996-10-31 Timing synchronization in a reciever employing orthogonal frequency division mutiplexing
GB9622728.5 1996-10-31
GB9720550A GB2318953A (en) 1996-10-31 1997-09-26 OFDM receiver with FFT window sync.
GB9720550.4 1997-09-26

Publications (2)

Publication Number Publication Date
WO1998019410A2 WO1998019410A2 (en) 1998-05-07
WO1998019410A3 true WO1998019410A3 (en) 1998-08-27

Family

ID=26310320

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/018911 Ceased WO1998019410A2 (en) 1996-10-31 1997-10-22 Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing

Country Status (9)

Country Link
EP (1) EP0938795A2 (en)
JP (2) JP2001527706A (en)
KR (1) KR20000052956A (en)
CN (1) CN1249099A (en)
AU (1) AU727726B2 (en)
BR (1) BR9712722A (en)
CA (1) CA2270149A1 (en)
IL (1) IL129655A0 (en)
WO (1) WO1998019410A2 (en)

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US6930995B1 (en) * 1999-06-23 2005-08-16 Cingular Wireless Ii, Llc Apparatus and method for synchronization in a multiple-carrier communication system by observing a plurality of synchronization indicators
US6389087B1 (en) * 1999-06-23 2002-05-14 At&T Wireless Services, Inc. Apparatus and method for synchronization in a multiple-carrier communication system by observing energy within a guard band
CN1422482A (en) * 2000-03-30 2003-06-04 高通股份有限公司 Method and apparatus for a mobile station application to identify specified events
DE60028200T2 (en) 2000-08-01 2007-03-15 Sony Deutschland Gmbh Device and method for channel estimation for OFDM system
JP3960511B2 (en) * 2001-05-07 2007-08-15 日本放送協会 OFDM signal analyzer
EP1267536A1 (en) * 2001-06-13 2002-12-18 Conexant Systems, Inc. Multicarrier receiver with detection of the transmission mode and length of the guard interval
EP1283614A1 (en) 2001-08-10 2003-02-12 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Channel estimation in a multicarrier transmit diversity system
FR2830389B1 (en) * 2001-10-03 2004-09-24 Canon Kk METHOD AND DEVICE COMBINING CHANNEL ESTIMATION AND TIME SYNCHRONIZATION FOR RECEPTION
US7548506B2 (en) 2001-10-17 2009-06-16 Nortel Networks Limited System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design
KR100429528B1 (en) * 2002-01-23 2004-05-03 삼성전자주식회사 Method and apparatus for digital communications
US7224666B2 (en) 2002-05-13 2007-05-29 Texas Instruments Incorporated Estimating frequency offsets using pilot tones in an OFDM system
WO2004015948A1 (en) * 2002-08-13 2004-02-19 Nokia Corporation Symbol interleaving
EP1408665B1 (en) 2002-10-10 2017-09-06 Panasonic Intellectual Property Management Co., Ltd. Detection of the position of pilot symbols in a multicarrier signal
DE102004047600A1 (en) * 2004-09-30 2006-04-13 Robert Bosch Gmbh Method for synchronizing a sampling clock and synchronization unit for a multi-carrier receiving system
KR100686140B1 (en) * 2005-01-18 2007-02-23 엘지전자 주식회사 How Tracker Locks Occur
JP2006287756A (en) 2005-04-01 2006-10-19 Ntt Docomo Inc Transmission device, transmission method, reception device, and reception method
CN101110803B (en) * 2006-07-18 2011-06-01 大唐移动通信设备有限公司 A Realization Method Based on Joint Operation of Fast Fourier Transform and Inverse Transform
US8238436B2 (en) * 2007-03-30 2012-08-07 Mediatek Inc. Methods and device for fast acquisition of digital video signals
CN101552756B (en) * 2008-04-03 2013-06-12 联咏科技股份有限公司 Orthogonal frequency division multiplexing modulation receiving device and filter used therein
CN101257472B (en) * 2008-04-09 2011-04-27 浙江大学 Orthogonal Frequency Division Multiplexing Receiver System and Its Automatic Gain Control Method
CN102282900B (en) * 2008-11-12 2015-01-07 新加坡科技研究局 Multiple Access Communication System
CN101626250A (en) * 2009-07-23 2010-01-13 无锡圆芯微电子有限公司 Method for realizing integrate circuit of Reed-Solomon decoder having single error correcting capability
KR20120095408A (en) 2009-10-30 2012-08-28 뱅거 유니버시티 Synchronisation process in optical frequency division multiplexing transmission systems
GB2489922A (en) 2011-04-06 2012-10-17 Univ Bangor Synchronising optical OFDM signal with pattern of DC offset levels superimposed upon OFDM symbols
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Also Published As

Publication number Publication date
JP2001527706A (en) 2001-12-25
BR9712722A (en) 1999-10-26
CA2270149A1 (en) 1998-05-07
EP0938795A2 (en) 1999-09-01
AU727726B2 (en) 2000-12-21
AU5147198A (en) 1998-05-22
WO1998019410A2 (en) 1998-05-07
KR20000052956A (en) 2000-08-25
CN1249099A (en) 2000-03-29
IL129655A0 (en) 2000-02-29
JP2005045788A (en) 2005-02-17

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