SE9700308D0 - Förfarande och anordning i ett kommunikationssystem - Google Patents
Förfarande och anordning i ett kommunikationssystemInfo
- Publication number
- SE9700308D0 SE9700308D0 SE9700308A SE9700308A SE9700308D0 SE 9700308 D0 SE9700308 D0 SE 9700308D0 SE 9700308 A SE9700308 A SE 9700308A SE 9700308 A SE9700308 A SE 9700308A SE 9700308 D0 SE9700308 D0 SE 9700308D0
- Authority
- SE
- Sweden
- Prior art keywords
- synchronization
- symbols
- transmitter
- receiver
- result
- Prior art date
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
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700308A SE517930C2 (sv) | 1997-01-31 | 1997-01-31 | Förfarande och anordning för initial synkronisering i ett kommunikationssystem |
PCT/SE1998/000138 WO1998034368A2 (en) | 1997-01-31 | 1998-01-30 | Method and device in a communication system |
AU58895/98A AU5889598A (en) | 1997-01-31 | 1998-01-30 | Method and device in a communication system |
EP98902340A EP0956676B1 (en) | 1997-01-31 | 1998-01-30 | Method and device in a communication system |
DE69834101T DE69834101T2 (de) | 1997-01-31 | 1998-01-30 | Verfahren und vorrichtung in einem nachrichtenübertragungssystem |
US09/355,483 US6252908B1 (en) | 1997-01-31 | 1998-01-30 | Method and device in a communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700308A SE517930C2 (sv) | 1997-01-31 | 1997-01-31 | Förfarande och anordning för initial synkronisering i ett kommunikationssystem |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9700308D0 true SE9700308D0 (sv) | 1997-01-31 |
SE9700308L SE9700308L (sv) | 1998-08-01 |
SE517930C2 SE517930C2 (sv) | 2002-08-06 |
Family
ID=20405597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9700308A SE517930C2 (sv) | 1997-01-31 | 1997-01-31 | Förfarande och anordning för initial synkronisering i ett kommunikationssystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US6252908B1 (sv) |
EP (1) | EP0956676B1 (sv) |
AU (1) | AU5889598A (sv) |
DE (1) | DE69834101T2 (sv) |
SE (1) | SE517930C2 (sv) |
WO (1) | WO1998034368A2 (sv) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6363175B1 (en) | 1997-04-02 | 2002-03-26 | Sonyx, Inc. | Spectral encoding of information |
SE9704497L (sv) * | 1997-12-03 | 1999-06-04 | Telia Ab | Förbättringar av, eller med avseende på, data scramblers |
US6549592B1 (en) * | 1998-02-06 | 2003-04-15 | Cisco Technology, Inc | Enhanced synchronization burst for OFDM systems |
US6876675B1 (en) * | 1998-02-06 | 2005-04-05 | Cisco Technology, Inc. | Synchronization in OFDM systems |
US7020071B2 (en) * | 1998-11-25 | 2006-03-28 | Lucent Technologies Inc. | Methods and apparatus for wireless communication using orthogonal frequency division multiplexing |
US6760348B1 (en) * | 1998-12-28 | 2004-07-06 | Globespanvirata, Inc. | System and method for tone detection in a discrete multi-tone system |
US7039252B2 (en) * | 1999-02-25 | 2006-05-02 | Ludwig Lester F | Iterative approximation environments for modeling the evolution of an image propagating through a physical medium in restoration and other applications |
US7054504B2 (en) * | 1999-02-25 | 2006-05-30 | Ludwig Lester F | Relative optical path phase reconstruction in the correction of misfocused images using fractional powers of the fourier transform |
US6650476B1 (en) * | 1999-02-25 | 2003-11-18 | Lester Frank Ludwig | Image processing utilizing non-positive-definite transfer functions via fractional fourier transform |
US6687418B1 (en) * | 1999-02-25 | 2004-02-03 | Lester Frank Ludwig | Correction of image misfocus via fractional fourier transform |
EP1047236A1 (de) * | 1999-04-22 | 2000-10-25 | Abb Research Ltd. | Synchronisation in einem Datenübertragungssystem mittels Fast Fourier Transformation |
US6862297B1 (en) | 1999-12-21 | 2005-03-01 | Cisco Technology, Inc. | Wide range frequency offset estimation in OFDM systems |
US6724849B1 (en) * | 2000-02-29 | 2004-04-20 | Centillium Communications, Inc. | Method and apparatus for timing recovery in ADSL transceivers under a TCM-ISDN crosstalk environment |
US7020074B1 (en) * | 2000-04-03 | 2006-03-28 | Nortel Networks Limited | Synchronization method and apparatus for frequency division multiplexed telecommunication systems |
US6930989B1 (en) * | 2000-06-20 | 2005-08-16 | Cisco Technology, Inc. | Wide frequency offset correction using encoded interburst phase differences |
US6856648B1 (en) | 2000-07-17 | 2005-02-15 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for equalizer updating and sampling rate control |
EP1364507A2 (en) * | 2001-02-22 | 2003-11-26 | Koninklijke Philips Electronics N.V. | Multicarrier transmission system with reduced complexity leakage matrix multiplication |
CN1228951C (zh) * | 2001-02-22 | 2005-11-23 | 皇家菲利浦电子有限公司 | 具有简化信道响应估计的多载波传输系统 |
US7127005B2 (en) * | 2001-03-23 | 2006-10-24 | James Stuart Wight | Computational circuits and methods for processing modulated signals having non-constant envelopes |
US7006587B1 (en) | 2001-11-20 | 2006-02-28 | Cisco Technolgy, Inc. | Preamble aided synchronization |
DE60211844T2 (de) * | 2002-02-27 | 2007-05-16 | Sonyx, Inc. | Vorrichtung und Verfahren zur Kodierung von Information und Vorrichtung und Verfahren zur Dekodierung von Kodierten Information |
US7881398B2 (en) * | 2006-08-21 | 2011-02-01 | Agere Systems Inc. | FFT numerology for an OFDM transmission system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5323649B2 (sv) * | 1971-10-06 | 1978-07-15 | ||
GB2153186B (en) | 1984-01-13 | 1987-04-23 | Ncr Co | Digital data receiver including timing adjustment circuit |
GB8800740D0 (en) | 1988-01-13 | 1988-02-10 | Ncr Co | Data modem receiver |
JPH0276430A (ja) | 1988-09-13 | 1990-03-15 | Fujitsu Ltd | 逆トレーニング信号検出機能を付加した初期引き込み方式 |
US5206886A (en) | 1990-04-16 | 1993-04-27 | Telebit Corporation | Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in mulicarrier modems |
SE500986C2 (sv) * | 1993-07-20 | 1994-10-17 | Telia Ab | Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM |
SE9400116L (sv) | 1994-01-18 | 1995-03-27 | Telia Ab | Förfarande och arrangemang för synkronisering vid OFDM- modulering |
JP2989742B2 (ja) * | 1994-05-20 | 1999-12-13 | 株式会社日立製作所 | ディジタル放送システムおよび該ディジタル放送用の送信システムならびに該ディジタル放送用の受信システム |
US5627863A (en) * | 1994-07-15 | 1997-05-06 | Amati Communications Corporation | Frame synchronization in multicarrier transmission systems |
-
1997
- 1997-01-31 SE SE9700308A patent/SE517930C2/sv not_active IP Right Cessation
-
1998
- 1998-01-30 EP EP98902340A patent/EP0956676B1/en not_active Expired - Lifetime
- 1998-01-30 DE DE69834101T patent/DE69834101T2/de not_active Expired - Lifetime
- 1998-01-30 AU AU58895/98A patent/AU5889598A/en not_active Abandoned
- 1998-01-30 WO PCT/SE1998/000138 patent/WO1998034368A2/en active IP Right Grant
- 1998-01-30 US US09/355,483 patent/US6252908B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1998034368A2 (en) | 1998-08-06 |
DE69834101D1 (de) | 2006-05-18 |
SE9700308L (sv) | 1998-08-01 |
EP0956676A2 (en) | 1999-11-17 |
SE517930C2 (sv) | 2002-08-06 |
WO1998034368A3 (en) | 1998-12-10 |
AU5889598A (en) | 1998-08-25 |
US6252908B1 (en) | 2001-06-26 |
EP0956676B1 (en) | 2006-04-05 |
DE69834101T2 (de) | 2006-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |