CA2287001C - Fast start-up in discrete multi-tone (dmt) based communications systems - Google Patents
Fast start-up in discrete multi-tone (dmt) based communications systems Download PDFInfo
- Publication number
- CA2287001C CA2287001C CA002287001A CA2287001A CA2287001C CA 2287001 C CA2287001 C CA 2287001C CA 002287001 A CA002287001 A CA 002287001A CA 2287001 A CA2287001 A CA 2287001A CA 2287001 C CA2287001 C CA 2287001C
- Authority
- CA
- Canada
- Prior art keywords
- algorithm
- rotator
- signal
- gain control
- automatic gain
- 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.)
- Expired - Fee Related
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
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
-
- 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
- H04L27/2614—Peak power aspects
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03439—Fixed structures
- H04L2025/03522—Frequency domain
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephonic Communication Services (AREA)
- Analogue/Digital Conversion (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/199,775 US6452987B1 (en) | 1998-11-25 | 1998-11-25 | Fast start-up in discrete multi-tone (DMT) based communications system |
US09/199,775 | 1998-11-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2287001A1 CA2287001A1 (en) | 2000-05-25 |
CA2287001C true CA2287001C (en) | 2002-07-30 |
Family
ID=22738975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002287001A Expired - Fee Related CA2287001C (en) | 1998-11-25 | 1999-10-19 | Fast start-up in discrete multi-tone (dmt) based communications systems |
Country Status (4)
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6782096B1 (en) * | 1998-11-12 | 2004-08-24 | Paradyne Corporation | Subscriber line driver and termination |
EP1705852B1 (en) | 1999-01-08 | 2010-02-10 | Sony Deutschland Gmbh | Synchronisation symbol structure for OFDM system |
WO2000044195A1 (fr) * | 1999-01-20 | 2000-07-27 | Fujitsu Limited | Procede de transmission numerique a grande vitesse utilisant une ligne d'abonne numerique, systeme de prise en charge abonne employe selon ce procede de transmission numerique a grande vitesse, dispositif de prise en charge cote terminaison abonne, et dispositif de prise en charge cote station de prise en charge |
US6504865B1 (en) * | 1999-02-24 | 2003-01-07 | Altocom, Inc. | Digital connection detection technique |
US6937665B1 (en) * | 1999-04-19 | 2005-08-30 | Interuniversitaire Micron Elektronica Centrum | Method and apparatus for multi-user transmission |
EP1079578A3 (en) * | 1999-08-23 | 2001-11-07 | Motorola, Inc. | Data allocation in multicarrier systems |
US6741604B1 (en) * | 1999-11-12 | 2004-05-25 | Tioga Technologies, Inc. | ADSL transmission in the presence of low-frequency network services |
US6975694B1 (en) * | 1999-12-15 | 2005-12-13 | Paradyne Corporation | Digital subscriber line driver |
EP1162803A1 (en) * | 2000-06-05 | 2001-12-12 | Telefonaktiebolaget L M Ericsson (Publ) | Frequency tracking device and method for a receiver of a multi-carrier communication system |
GB2364866B (en) * | 2000-07-12 | 2004-05-19 | Conexant Systems Inc | Television receiver |
US6836519B1 (en) * | 2000-12-20 | 2004-12-28 | Cisco Technology, Inc. | Automatic digital scaling for digital communication systems |
US6748011B2 (en) * | 2001-01-09 | 2004-06-08 | Qualcomm, Incorporated | Efficient multicarrier filter |
US7127019B2 (en) * | 2001-06-21 | 2006-10-24 | Hitachi, Ltd. | Methods and apparatus for implementing multi-tone receivers |
JP2003008536A (ja) * | 2001-06-21 | 2003-01-10 | Matsushita Graphic Communication Systems Inc | ゲインコントロール装置及びそれを備えたモデム装置 |
US7388930B1 (en) * | 2001-08-10 | 2008-06-17 | Bandspeed, Inc. | Method and apparatus for removing crosstalk and other interference in communications systems |
US7366286B1 (en) * | 2001-12-21 | 2008-04-29 | Symmetricom, Inc | Modified asymmetric digital subscriber line for use with long loops |
US7133473B1 (en) * | 2002-02-15 | 2006-11-07 | Marvell International Ltd. | Divisionless baseband equalization in symbol modulated communications |
WO2003081869A1 (en) | 2002-03-21 | 2003-10-02 | Globespan Virata Incorporated | Adaptive rfi canceller for dsl |
US7418049B2 (en) * | 2002-06-03 | 2008-08-26 | Vixs Systems Inc. | Method and apparatus for decoding baseband orthogonal frequency division multiplex signals |
EP1703763A1 (en) * | 2005-03-18 | 2006-09-20 | Alcatel | Communication interface and testing method therefore |
US8229036B2 (en) * | 2007-12-21 | 2012-07-24 | Broadcom Corporation | Characterizing channel response using data tone decision feedback |
US20140161000A1 (en) * | 2012-12-10 | 2014-06-12 | Futurewei Technologies, Inc. | Timing offset correction in a tdd vectored system |
US9912381B2 (en) * | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
FR3056368B1 (fr) * | 2016-09-21 | 2018-09-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Emetteur ofdm a filtrage par blocs et systeme d'emission/reception correspondant |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4943980A (en) * | 1989-05-02 | 1990-07-24 | Intelligent Modem Corporation | Multi-carrier high speed modem |
US5793807A (en) * | 1996-05-07 | 1998-08-11 | Lucent Technologies Inc. | Multimodulus blind eqalization using piecewise linear contours |
US5809074A (en) | 1996-11-08 | 1998-09-15 | Lucent Technologies Inc. | Technique for improving the blind convergence of an adaptive equalizer using a transition algorithm |
US6272108B1 (en) * | 1997-03-05 | 2001-08-07 | Paradyne Corporation | Apparatus and method to allow a frame check sequence to determine the updating of adaptive receiver parameters of a high speed communication device |
KR100421212B1 (ko) * | 1997-05-10 | 2004-05-22 | 삼성전자주식회사 | 디지탈가입자선에서고속다수반송파데이터신호의연속전송을위한다수반송파시스템의다점전송방법 |
US6549512B2 (en) * | 1997-06-25 | 2003-04-15 | Texas Instruments Incorporated | MDSL DMT architecture |
US6137809A (en) * | 1997-08-22 | 2000-10-24 | Paradyne Corporation | Quantization noise compensator apparatus and method |
US6389062B1 (en) * | 1997-09-17 | 2002-05-14 | Texas Instruments Incorporated | Adaptive frequency domain equalizer circuits, systems, and methods for discrete multitone based digital subscriber line modem |
US6219378B1 (en) * | 1997-09-17 | 2001-04-17 | Texas Instruments Incorporated | Digital subscriber line modem initialization |
-
1998
- 1998-11-25 US US09/199,775 patent/US6452987B1/en not_active Expired - Fee Related
-
1999
- 1999-10-19 CA CA002287001A patent/CA2287001C/en not_active Expired - Fee Related
- 1999-11-16 EP EP99309080A patent/EP1005205A3/en not_active Withdrawn
- 1999-11-25 JP JP11333578A patent/JP2000165347A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1005205A3 (en) | 2003-09-17 |
CA2287001A1 (en) | 2000-05-25 |
JP2000165347A (ja) | 2000-06-16 |
US6452987B1 (en) | 2002-09-17 |
EP1005205A2 (en) | 2000-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |