CA2346714A1 - Receiver for ofdm packet communication system - Google Patents
Receiver for ofdm packet communication system Download PDFInfo
- Publication number
- CA2346714A1 CA2346714A1 CA002346714A CA2346714A CA2346714A1 CA 2346714 A1 CA2346714 A1 CA 2346714A1 CA 002346714 A CA002346714 A CA 002346714A CA 2346714 A CA2346714 A CA 2346714A CA 2346714 A1 CA2346714 A1 CA 2346714A1
- Authority
- CA
- Canada
- Prior art keywords
- frequency error
- receiver
- clock frequency
- phase rotation
- coherent
- 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.)
- Granted
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
- 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
- H04L27/2657—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
- H04L27/2657—Carrier synchronisation
- H04L27/266—Fine or fractional frequency offset determination and 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
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
Abstract
In an OFDM packet communication receiver, the deterioration of received signal quality is suppressed, even when carrier frequency error and/or clock frequency error exists between a transmitter and a receiver, and/or phase noise and/or thermal noise is superimposed to a received signal in a receiver. The receive system comprises a channel estimate means (106) for channel estimation by using subcarriers separated by a Fourier transformation, a coherent detection means (107) for coherent detection of subcarriers by using result of channel estimation of an output of said channel estimate means, a clock frequency error estimate means (108, 110, 111) for estimating phase rotation (.DELTA.A .theta.) of each subcarriers caused by clock frequency error (f RCLK - f TCLK) by detecting phase rotation or accumulated phase rotation between coherent detected signal (R1, R2) and related reference siqnal (S1 through S16) by using a part of or all of the coherent detected signals, and a phase compensation means (109) for compensating phase rotation of coherent detected signal according to estimated clock frequency error. Phase compensated signal is applied to a decision means (112) for deciding 1 or 0 of a symbol.
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11514499 | 1999-04-22 | ||
JP11514599 | 1999-04-22 | ||
JP11/115144 | 1999-04-22 | ||
JP11/115145 | 1999-04-22 | ||
JP16971999 | 1999-06-16 | ||
JP11/169719 | 1999-06-16 | ||
JP17107299 | 1999-06-17 | ||
JP11/171072 | 1999-06-17 | ||
JP2000045963 | 2000-02-23 | ||
JP2000/45963 | 2000-02-23 | ||
PCT/JP2000/002611 WO2000065756A1 (en) | 1999-04-22 | 2000-04-21 | Ofdm packet communication receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2346714A1 true CA2346714A1 (en) | 2000-11-02 |
CA2346714C CA2346714C (en) | 2007-07-10 |
Family
ID=27526677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002346714A Expired - Lifetime CA2346714C (en) | 1999-04-22 | 2000-04-21 | Receiver for ofdm packet communication system |
Country Status (6)
Country | Link |
---|---|
US (1) | US7058002B1 (en) |
EP (1) | EP1172956B1 (en) |
AU (1) | AU749134B2 (en) |
CA (1) | CA2346714C (en) |
DE (1) | DE60039862D1 (en) |
WO (1) | WO2000065756A1 (en) |
Families Citing this family (56)
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KR100362571B1 (en) * | 1999-07-05 | 2002-11-27 | 삼성전자 주식회사 | Frequency offset compensation apparatus and method using pilot symbol in orthogonal frequency division multiplex system |
US7227834B1 (en) | 1999-08-27 | 2007-06-05 | Mitsubishi Kabushiki Kaisha | Synchronizing pulse generating method and method of receiving OFDM signal |
GB2353681B (en) * | 1999-08-27 | 2003-01-15 | Mitsubishi Electric Inf Tech | OFDM frame synchronisation |
JP4864286B2 (en) * | 2001-06-22 | 2012-02-01 | トムソン ライセンシング | Method and system for compensating for carrier frequency offset |
US7359314B2 (en) * | 2001-12-26 | 2008-04-15 | Hitachi, Ltd. | Signal transmission system for transmitting a signal with a guard interval and a demodulation method thereof |
US7170961B2 (en) * | 2002-01-08 | 2007-01-30 | Patrick Vandenameele-Lepla | Method and apparatus for frequency-domain tracking of residual frequency and channel estimation offsets |
EP1335552B1 (en) * | 2002-02-07 | 2007-01-10 | Mitsubishi Electric Information Technology Centre Europe B.V. | Estimation of channel response and of delay in multicarrier systems |
AU2003903826A0 (en) | 2003-07-24 | 2003-08-07 | University Of South Australia | An ofdm receiver structure |
US7697410B2 (en) * | 2002-07-31 | 2010-04-13 | Thomson Licensing | Centralized buffer architecture for an orthogonal frequency division multiplexing (OFDM) receiver |
US8457230B2 (en) * | 2002-08-21 | 2013-06-04 | Broadcom Corporation | Reconfigurable orthogonal frequency division multiplexing (OFDM) chip supporting single weight diversity |
US7277493B2 (en) * | 2003-01-28 | 2007-10-02 | Agere Systems Inc. | Equalization in orthogonal frequency domain multiplexing |
US7684501B2 (en) * | 2003-02-19 | 2010-03-23 | Realtek Semiconductor Corp. | Apparatus and method for carrier frequency offset and phase compensation in communication system |
TWI252656B (en) * | 2003-03-21 | 2006-04-01 | Realtek Semiconductor Corp | Sampling clock compensation device of multi-carrier system and method thereof |
JP3748449B2 (en) * | 2003-03-31 | 2006-02-22 | 株式会社東芝 | OFDM receiver |
US7359311B1 (en) * | 2003-04-18 | 2008-04-15 | Cisco Technology, Inc. | Decoding method and apparatus using channel state information for use in a wireless network receiver |
US7760810B2 (en) * | 2003-06-18 | 2010-07-20 | Panasonic Corporation | Receiver and method for digital multi carrier transmission |
TWI220547B (en) * | 2003-07-08 | 2004-08-21 | Realtek Semiconductor Corp | Symbol boundary detection device and method |
WO2005006697A1 (en) * | 2003-07-11 | 2005-01-20 | Koninklijke Philips Electronics N.V. | Method and apparatus for coarse and fine frequency and timing synchronisation |
JP4356392B2 (en) | 2003-08-07 | 2009-11-04 | パナソニック株式会社 | Communication device |
US20050041693A1 (en) * | 2003-08-22 | 2005-02-24 | Paolo Priotti | Method and apparatus for frequency synchronization in MIMO-OFDM wireless communication systems |
US7433435B2 (en) * | 2003-10-22 | 2008-10-07 | Sasken Communication Technologies Limited | Apparatus, methods, systems, and articles incorporating a clock correction technique |
JP3952203B2 (en) * | 2003-10-27 | 2007-08-01 | カシオ計算機株式会社 | OFDM demodulation apparatus, OFDM demodulation integrated circuit, and OFDM demodulation method |
US7630688B2 (en) * | 2004-03-31 | 2009-12-08 | Interdigital Technology Corporation | Mitigation of wireless transmit/receive unit (WTRU) to WTRU interference using multiple antennas or beams |
GB2422073B (en) * | 2005-01-07 | 2007-03-28 | Toshiba Res Europ Ltd | Improved frequency offset tracking |
US7474611B2 (en) | 2005-04-21 | 2009-01-06 | Telefonaktiebolaget L M Ericsson (Publ) | Reduced complexity channel estimation in OFDM systems |
KR20060112736A (en) * | 2005-04-27 | 2006-11-02 | 삼성전자주식회사 | Frequency syncronization apparatus and method for ofdm system |
DE102006063020B3 (en) * | 2005-07-06 | 2019-10-24 | Denso Corporation | Wheel identification device and tire inflation pressure detection device with a wheel identification function |
US7872962B1 (en) * | 2005-10-18 | 2011-01-18 | Marvell International Ltd. | System and method for producing weighted signals in a diversity communication system |
US8040982B1 (en) * | 2005-10-18 | 2011-10-18 | Marvell International Ltd. | Phase-adjusted channel estimation for frequency division multiplexed channels |
JP4264550B2 (en) * | 2005-11-15 | 2009-05-20 | ソニー株式会社 | Reception device and channel estimation device |
KR100872043B1 (en) * | 2005-12-29 | 2008-12-05 | 삼성전자주식회사 | Apparatus and method for determining pilot pattern in broadband wireless access communication system |
KR100896203B1 (en) | 2006-02-24 | 2009-05-12 | 삼성전자주식회사 | Apparatus and method for channel estimation for data demodulation in broadband wireless access system |
US8396165B2 (en) * | 2006-07-20 | 2013-03-12 | Sharp Kabushiki Kaisha | Multicarrier-signal receiving apparatus and multicarrier-signal transmitting apparatus |
WO2008020360A1 (en) * | 2006-08-18 | 2008-02-21 | Nxp B.V. | Time error estimation for data symbols |
JP4399447B2 (en) * | 2006-10-27 | 2010-01-13 | Okiセミコンダクタ株式会社 | OFDM receiver |
US7978773B2 (en) * | 2006-12-29 | 2011-07-12 | Agere Systems Inc. | Multi-channel receiver with improved AGC |
US8085873B2 (en) * | 2007-01-02 | 2011-12-27 | Qualcomm, Incorporated | Systems and methods for enhanced channel estimation in wireless communication systems |
JP5099122B2 (en) * | 2007-03-23 | 2012-12-12 | 富士通株式会社 | Integrated circuit chip and circuit network |
US7769357B2 (en) * | 2007-04-25 | 2010-08-03 | Agere Systems Inc. | Multi-channel receiver with improved AGC |
US7809343B2 (en) * | 2007-04-25 | 2010-10-05 | Agere Systems Inc. | Multi-channel receiver with improved AGC |
US7936836B2 (en) * | 2007-09-26 | 2011-05-03 | Intel Corporation | Method and apparatus for an OFDMA parallel architecture scheduler |
WO2009153809A2 (en) * | 2008-06-18 | 2009-12-23 | Centre Of Excellence In Wireless Technology | Precoding for single transmission streams in multiple antenna systems |
US9225575B2 (en) | 2008-06-18 | 2015-12-29 | Center Of Excellence In Wireless Technology | Precoding for single transmission streams in multiple antenna systems |
WO2010003176A1 (en) * | 2008-07-07 | 2010-01-14 | Commonwealth Scientific And Industrial Resaerch Organisation | Parallel packet transmission |
EP2348779B1 (en) * | 2008-07-23 | 2013-01-16 | Nokia Corporation | Bearing determination using signals transformed into frequency domain |
JP5178436B2 (en) * | 2008-10-02 | 2013-04-10 | キヤノン株式会社 | Bidirectional communication system, communication apparatus, and communication apparatus control method |
US9338031B2 (en) * | 2009-08-17 | 2016-05-10 | Qualcomm Incorporated | Methods and apparatus for interference decrease/cancellation on downlink acquisition signals |
JP5348165B2 (en) * | 2011-03-25 | 2013-11-20 | 株式会社デンソー | Synchronous detection method and apparatus |
JP5747777B2 (en) * | 2011-10-17 | 2015-07-15 | 富士通株式会社 | Receiver, frequency deviation calculation method, and computer program |
US9036747B2 (en) * | 2011-11-09 | 2015-05-19 | Mediatek Inc. | Wireless communication receiver with phase noise estimation and phase noise compensation performed after channel estimation, and related wireless communication receiving method and phase noise compensation apparatus |
CN104168241B (en) * | 2013-05-16 | 2017-10-17 | 华为技术有限公司 | Multiple input multiple output orthogonal frequency division multiplexing communication system and method for compensating signal |
US10003477B1 (en) | 2015-05-13 | 2018-06-19 | Marvell International Ltd. | Methods and systems for channel estimation enhancement for multi-stream packets |
JP6635289B2 (en) * | 2015-09-01 | 2020-01-22 | 株式会社レイトロン | Wireless receiving device and received data restoring device |
CN110460385B (en) * | 2018-05-08 | 2022-05-31 | 富士通株式会社 | Phase noise compensation device and method and receiver |
US11212155B2 (en) * | 2019-06-19 | 2021-12-28 | Altiostar Networks, Inc. | System and method for enhancing reception in wireless communication systems |
EP4320827A1 (en) | 2021-07-29 | 2024-02-14 | ST Engineering iDirect (Europe) Cy NV | Method for estimating phase noise |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2721778B1 (en) * | 1994-06-23 | 1996-09-06 | France Telecom | Method for estimating a residual phase error on the samples of a demodulated digital signal, and corresponding correction method. |
JP3575883B2 (en) * | 1995-09-18 | 2004-10-13 | 三菱電機株式会社 | Digital demodulator |
JPH09130362A (en) * | 1995-10-30 | 1997-05-16 | Sony Corp | Receiver and reception method |
JP3348210B2 (en) * | 1996-04-08 | 2002-11-20 | 株式会社ケンウッド | Demodulator |
JPH09307526A (en) * | 1996-05-17 | 1997-11-28 | Mitsubishi Electric Corp | Digital broadcast receiver |
EP0859494A3 (en) * | 1997-02-17 | 2000-08-23 | Matsushita Electric Industrial Co., Ltd. | Synchronisation of the local oscillator in multicarrier systems |
US6169751B1 (en) * | 1997-03-10 | 2001-01-02 | Matsushita Electric Industrial Co., Ltd. | OFDM receiving apparatus |
JPH10257013A (en) * | 1997-03-14 | 1998-09-25 | Toshiba Corp | Receiver |
EP0903897B1 (en) * | 1997-09-22 | 2001-10-31 | Alcatel | Method and arrangement to determine a clock timing error in a multi-carrier transmission system |
JP2000165341A (en) * | 1998-11-20 | 2000-06-16 | Nippon Telegr & Teleph Corp <Ntt> | Ofdm demodulation circuit |
JP2000165344A (en) * | 1998-11-26 | 2000-06-16 | Matsushita Electric Ind Co Ltd | Ofdm communication unit |
-
2000
- 2000-04-21 CA CA002346714A patent/CA2346714C/en not_active Expired - Lifetime
- 2000-04-21 EP EP00917403A patent/EP1172956B1/en not_active Expired - Lifetime
- 2000-04-21 AU AU38414/00A patent/AU749134B2/en not_active Expired
- 2000-04-21 WO PCT/JP2000/002611 patent/WO2000065756A1/en active IP Right Grant
- 2000-04-21 DE DE60039862T patent/DE60039862D1/en not_active Expired - Lifetime
- 2000-04-21 US US09/787,927 patent/US7058002B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU749134B2 (en) | 2002-06-20 |
US7058002B1 (en) | 2006-06-06 |
EP1172956A1 (en) | 2002-01-16 |
WO2000065756A1 (en) | 2000-11-02 |
CA2346714C (en) | 2007-07-10 |
DE60039862D1 (en) | 2008-09-25 |
AU3841400A (en) | 2000-11-10 |
EP1172956A4 (en) | 2006-07-05 |
EP1172956B1 (en) | 2008-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20200421 |