CA2270149A1 - 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

Info

Publication number
CA2270149A1
CA2270149A1 CA002270149A CA2270149A CA2270149A1 CA 2270149 A1 CA2270149 A1 CA 2270149A1 CA 002270149 A CA002270149 A CA 002270149A CA 2270149 A CA2270149 A CA 2270149A CA 2270149 A1 CA2270149 A1 CA 2270149A1
Authority
CA
Canada
Prior art keywords
data
tmp1
signal
output
circuit
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.)
Abandoned
Application number
CA002270149A
Other languages
English (en)
French (fr)
Inventor
Jonathan Parker
Matthew James Collins
David Huw Davies
Dawood Alam
John Matthew Nolan
Peter Anthony Keevill
Thomas Foxcroft
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
Individual
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 Individual filed Critical Individual
Publication of CA2270149A1 publication Critical patent/CA2270149A1/en
Abandoned 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)
  • Mathematical Physics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Superheterodyne Receivers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
CA002270149A 1996-10-31 1997-10-22 Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing Abandoned CA2270149A1 (en)

Applications Claiming Priority (5)

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
PCT/US1997/018911 WO1998019410A2 (en) 1996-10-31 1997-10-22 Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing

Publications (1)

Publication Number Publication Date
CA2270149A1 true CA2270149A1 (en) 1998-05-07

Family

ID=26310320

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002270149A Abandoned CA2270149A1 (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 (xx)
JP (2) JP2001527706A (xx)
KR (1) KR20000052956A (xx)
CN (1) CN1249099A (xx)
AU (1) AU727726B2 (xx)
BR (1) BR9712722A (xx)
CA (1) CA2270149A1 (xx)
IL (1) IL129655A0 (xx)
WO (1) WO1998019410A2 (xx)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6292511B1 (en) * 1998-10-02 2001-09-18 Usa Digital Radio Partners, Lp Method for equalization of complementary carriers in an AM compatible digital audio broadcast system
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
US6940933B1 (en) 1999-06-23 2005-09-06 Cingular Wireless Ii, Llc Apparatus and method for synchronization in a multiple-carrier communications system by observing a phase-frequency relationship of a plurality of pilot signals
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
JP4745586B2 (ja) * 2000-03-30 2011-08-10 クゥアルコム・インコーポレイテッド 移動局のアプリケーションが指定されたイベントを識別するための方法および装置
EP1178640B1 (en) 2000-08-01 2006-05-24 Sony Deutschland GmbH Device and method for channel estimating an OFDM system
JP3960511B2 (ja) * 2001-05-07 2007-08-15 日本放送協会 Ｏｆｄｍ信号解析装置
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 (fr) * 2001-10-03 2004-09-24 Canon Kk Procede et dispositif combinant estimation de canal et synchronisation temporelle pour la 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 (ko) 2002-01-23 2004-05-03 삼성전자주식회사 디지털 통신 방법 및 장치
US7224666B2 (en) 2002-05-13 2007-05-29 Texas Instruments Incorporated Estimating frequency offsets using pilot tones in an OFDM system
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 (de) * 2004-09-30 2006-04-13 Robert Bosch Gmbh Verfahren zum Synchronisieren eines Abtasttaktes sowie Synchronisationseinheit für ein Mehrträgerempfangssystem
KR100686140B1 (ko) * 2005-01-18 2007-02-23 엘지전자 주식회사 트래커 락 발생 방법
JP2006287756A (ja) 2005-04-01 2006-10-19 Ntt Docomo Inc 送信装置、送信方法、受信装置及び受信方法
CN101110803B (zh) * 2006-07-18 2011-06-01 大唐移动通信设备有限公司 一种基于快速傅立叶变换和反变换联合运算的实现方法
US8238436B2 (en) * 2007-03-30 2012-08-07 Mediatek Inc. Methods and device for fast acquisition of digital video signals
CN101552756B (zh) * 2008-04-03 2013-06-12 联咏科技股份有限公司 正交频分多路复用调制接收装置及其所使用的滤波器
CN101257472B (zh) * 2008-04-09 2011-04-27 浙江大学 正交频分复用接收机系统及其自动增益控制方法
WO2010056204A2 (en) * 2008-11-12 2010-05-20 Agency For Science, Technology And Research A multiple access communication system
CN101626250A (zh) * 2009-07-23 2010-01-13 无锡圆芯微电子有限公司 一种对具备单个纠错能力的Reed-Solomon解码器的集成电路实现方法
US8938171B2 (en) 2009-10-30 2015-01-20 Bangor University Synchronization 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
KR20160026749A (ko) * 2014-08-28 2016-03-09 뉴라컴 인코포레이티드 프레임 전송 방법 및 프레임 수신 방법
US10003986B2 (en) * 2014-09-26 2018-06-19 Futurewei Technologies, Inc. Device, network, and method for communications with variable-duration reference signals
FR3038084B1 (fr) * 2015-06-29 2017-12-29 Centre National De La Recherche Scient (C N R S) Microprocesseur parallele stochastique
CN107454030B (zh) * 2017-07-17 2020-03-17 科大智能电气技术有限公司 一种电力线宽带载波半并行发射机及其实现方法
CN109391580B (zh) * 2017-08-04 2021-06-15 安立股份有限公司 同步装置及同步方法
CN110830086B (zh) * 2018-08-07 2021-06-22 航天信息股份有限公司 一种信号处理装置和阅读器
CN109286381B (zh) * 2018-09-12 2022-03-08 西安微电子技术研究所 一种基于温度计编码的自动增益控制电路及控制方法
CN111371717B (zh) * 2018-12-26 2022-08-05 深圳市力合微电子股份有限公司 一种ofdm调制中用对称导频进行相位跟踪的方法
CN112202457A (zh) * 2019-07-08 2021-01-08 得琦电子股份有限公司 可快速选择频道的无线音频传输系统的频道选单界面
CN112099339B (zh) * 2020-07-27 2021-08-24 季华实验室 Utc数据接收器及计时器
CN112231847B (zh) * 2020-11-04 2024-04-02 中国商用飞机有限责任公司北京民用飞机技术研究中心 转捩位置确定方法、装置、电子设备及存储介质
CN112787723B (zh) * 2020-12-29 2022-03-25 武汉邮电科学研究院有限公司 一种非线性编码器、编码方法及光传输系统
CN112818633B (zh) * 2021-04-20 2021-07-20 北京智芯仿真科技有限公司 层间耦合动态施加的集成电路电流分布的迭代方法及装置
CN116153362B (zh) * 2023-04-20 2023-08-25 浙江力积存储科技有限公司 读取等待时间计数器延迟反馈方法、延迟反馈存储结构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300229A (en) * 1979-02-21 1981-11-10 Nippon Electric Co., Ltd. Transmitter and receiver for an othogonally multiplexed QAM signal of a sampling rate N times that of PAM signals, comprising an N/2-point offset fourier transform processor
SE9302453L (sv) * 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM
JP3074103B2 (ja) * 1993-11-16 2000-08-07 株式会社東芝 Ｏｆｄｍ同期復調回路
FI96372C (fi) * 1994-06-16 1996-06-10 Nokia Technology Gmbh Kehystahdistus digitaalisia radiolähetyksiä vastaanottavassa laitteessa
US5774450A (en) * 1995-01-10 1998-06-30 Matsushita Electric Industrial Co., Ltd. Method of transmitting orthogonal frequency division multiplexing signal and receiver thereof
EP0809898A2 (en) * 1995-02-06 1997-12-03 Adc Telecommunications, Inc. Multi-point to point communication system
SE514986C2 (sv) * 1995-03-01 2001-05-28 Telia Ab Metod och anordning för synkronisering vid OFDM-system

Also Published As

Publication number Publication date
EP0938795A2 (en) 1999-09-01
JP2005045788A (ja) 2005-02-17
KR20000052956A (ko) 2000-08-25
JP2001527706A (ja) 2001-12-25
AU5147198A (en) 1998-05-22
BR9712722A (pt) 1999-10-26
WO1998019410A3 (en) 1998-08-27
CN1249099A (zh) 2000-03-29
WO1998019410A2 (en) 1998-05-07
IL129655A0 (en) 2000-02-29
AU727726B2 (en) 2000-12-21

Similar Documents

Publication Publication Date Title
CA2270149A1 (en) Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing
US6359938B1 (en) Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
US6687315B2 (en) Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
US5953311A (en) Timing synchronization in a receiver employing orthogonal frequency division multiplexing
KR100923892B1 (ko) 고속 푸리어 변환 트위들 승산
EP1869857B1 (en) FFT collection window positioning using OFDM symbol time tracking information
TWI258937B (en) Mode detection for OFDM signals
JP4336190B2 (ja) Ｍｉｍｏｏｆｄｍ及び他の無線通信システムに対するシンボルタイミングの決定
EP1580948A2 (en) Receiver
GB2318953A (en) OFDM receiver with FFT window sync.
US20060221810A1 (en) Fine timing acquisition
WO2004062150A1 (ja) Ｏｆｄｍ復調装置
JP2004214963A (ja) Ｏｆｄｍ復調装置
JP5222843B2 (ja) Ｏｆｄｍ受信装置、ｏｆｄｍ受信方法、ｏｆｄｍ受信回路、集積回路、及びプログラム
WO2006068186A1 (ja) Ｏｆｄｍ受信装置
US8582676B1 (en) Low complexity general sampling recovery method and apparatus
JP2003264529A (ja) マルチキャリア信号を搬送するチャネルの伝達関数を推定する方法及びマルチキャリア受信機
CN1791177A (zh) 用于数字接收器中的同步获取的设备及其方法
EP0877526A2 (en) Demodulating digital video broadcast signals
WO2010033280A1 (en) Channel estimation in ofdm receivers
JP3993441B2 (ja) Ｏｆｄｍ信号受信装置
Canet et al. FPGA implementation of an IF transceiver for OFDM-based WLAN
KR20040110340A (ko) 채널상태정보를 추출하여 에러정정에 이용하는ｔｄｓ-ｏｆｄｍ수신기 및 이를 이용한 에러정정방법
KR100862350B1 (ko) Ｄｒｍ 수신을 위한 가변 포인트 프라임 팩터 ｆｆｔ 방법
Zou et al. VLSI implementation for a low power mobile OFDM receiver ASIC

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued