CA2262349A1 - Multi-carrier transmission system and method thereof - Google Patents

Multi-carrier transmission system and method thereof Download PDF

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Publication number
CA2262349A1
CA2262349A1 CA002262349A CA2262349A CA2262349A1 CA 2262349 A1 CA2262349 A1 CA 2262349A1 CA 002262349 A CA002262349 A CA 002262349A CA 2262349 A CA2262349 A CA 2262349A CA 2262349 A1 CA2262349 A1 CA 2262349A1
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CA
Canada
Prior art keywords
signal
noise ratio
evaluated
transmission system
bit distribution
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
Application number
CA002262349A
Other languages
French (fr)
Other versions
CA2262349C (en
Inventor
Yusaku Okamura
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.)
NEC Corp
Original Assignee
NEC Corp
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
Application filed by NEC Corp filed Critical NEC Corp
Publication of CA2262349A1 publication Critical patent/CA2262349A1/en
Application granted granted Critical
Publication of CA2262349C publication Critical patent/CA2262349C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0085—Timing of allocation when channel conditions change
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation

Abstract

A multi-carrier transmission system and a method therefor employing a bit distribution method capable of solving the problem set forth above by regarding a plurality of SNR
values evaluated at different timings as one SNR value evaluated at different frequency at the same timing and is capable of solving the problem set forth above by realizing a given transmission speed depending upon a plurality of SNR
values evaluated at different timings and thus maximizing performance margin. The multi-carrier transmission system has signal to noise ratio evaluating means for obtaining a plurality sets of signal to noise ratio by evaluating signal to noise ratio of each of the multi-carriers at different timing respectively corresponding to a plurality of kinds of noise environments, and bit distribution means for performing bit distribution of each carrier depending upon one set of signal to noise ratio with taking a plurality of sets of signal to noise ratios as one set of signal to noise ratio evaluated on different frequency at the same timing.
CA002262349A 1998-02-27 1999-02-23 Multi-carrier transmission system and method thereof Expired - Fee Related CA2262349C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP046535/98 1998-02-27
JP4653598 1998-02-27
JP173723/98 1998-06-19
JP17372398 1998-06-19
JP10366982A JP3082756B2 (en) 1998-02-27 1998-12-24 Multi-carrier transmission system and method
JP366982/98 1998-12-24

Publications (2)

Publication Number Publication Date
CA2262349A1 true CA2262349A1 (en) 1999-08-27
CA2262349C CA2262349C (en) 2004-01-20

Family

ID=27292636

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002262349A Expired - Fee Related CA2262349C (en) 1998-02-27 1999-02-23 Multi-carrier transmission system and method thereof

Country Status (8)

Country Link
US (1) US6510184B1 (en)
JP (1) JP3082756B2 (en)
CN (1) CN1115005C (en)
AU (1) AU749100B2 (en)
CA (1) CA2262349C (en)
MY (1) MY122484A (en)
SG (1) SG80612A1 (en)
TW (1) TW423231B (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991311A (en) * 1997-10-25 1999-11-23 Centillium Technology Time-multiplexed transmission on digital-subscriber lines synchronized to existing TCM-ISDN for reduced cross-talk
JP2000013343A (en) * 1998-04-08 2000-01-14 Fujitsu Ltd Transmission method for subscriber line
JP3480313B2 (en) * 1998-05-26 2003-12-15 富士通株式会社 Digital subscriber line transmission method and xDSL device
JP3622510B2 (en) * 1998-06-19 2005-02-23 富士通株式会社 Digital subscriber line transmission method, ADSL transceiver, channel analysis system method, and ADSL apparatus
US6839383B1 (en) * 2000-03-10 2005-01-04 Cisco Technology, Inc. Method and system for testing a digital subscriber line modem
DE60127395T2 (en) 2000-04-18 2007-12-06 Aware, Inc., Bedford DATA ALLOCATION WITH CHANGED SIGNAL NOISE LEVEL
US6999504B1 (en) * 2000-11-21 2006-02-14 Globespanvirata, Inc. System and method for canceling crosstalk
US20030097623A1 (en) * 2001-10-24 2003-05-22 Javad Razavilar Method and apparatus for performance optimization and adaptive bit loading for wireless modems with convolutional coder, FEC, CRC and ARQ
WO2003055162A1 (en) * 2001-12-10 2003-07-03 Globespan Virata, Inc. System and method for reducing noise induced by digital subscriber line (dsl) systems into services that are concurrently deployed on a communication line
US7184467B2 (en) * 2001-12-27 2007-02-27 Texas Instruments Incorporated Method to mitigate effects of ISDN off/on transitions in ADSL
US7020482B2 (en) * 2002-01-23 2006-03-28 Qualcomm Incorporated Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems
WO2003088514A1 (en) * 2002-04-08 2003-10-23 Globespan Virata, Inc. System and method for generating a clock signal in a communication system
US7406028B2 (en) * 2002-06-05 2008-07-29 Texas Instruments Incorporated Memory-efficient ADSL transmission in the presence of TCM-ISDN interferers
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7620154B2 (en) 2002-12-23 2009-11-17 Cambron G Keith Equivalent working length determinative system for digital subscriber line circuits
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7809116B2 (en) * 2003-12-07 2010-10-05 Adaptive Spectrum And Signal Alignment, Inc. DSL system estimation including known DSL line scanning and bad splice detection capability
US7302379B2 (en) * 2003-12-07 2007-11-27 Adaptive Spectrum And Signal Alignment, Inc. DSL system estimation and parameter recommendation
US7352820B2 (en) * 2004-03-16 2008-04-01 Texas Instruments Incorporated DMT system with variable subchannel spacing in TCM ISDN noise
JP4552635B2 (en) * 2004-12-07 2010-09-29 日本電気株式会社 Multi-carrier transmission apparatus and multi-carrier transmission method
US7466749B2 (en) * 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) * 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
EP1905195B1 (en) * 2005-07-10 2020-09-02 Assia Spe, Llc Dsl system estimation
US8369426B2 (en) * 2007-05-04 2013-02-05 Ikanos Communications, Inc. Reducing the effect of noise in a multi-channel telecommunication receiver
JP2009159633A (en) * 2009-04-13 2009-07-16 Fujitsu Ltd Multicarrier direct spread transmission and reception system, multicarrier direct spread transmitter-receiver, multicarrier direct spread transmitter and multicarrier direct spread receiver, and multicarrier transmission and reception system, multicarrier transmitter-receiver, multicarrier transmitter and multicarrier receiver
CN104137451B (en) * 2012-02-28 2017-10-17 住友电气工业株式会社 Communication system, communicator, electric supply installation and vehicle
JP5519734B2 (en) * 2012-06-26 2014-06-11 ファナック株式会社 Master device that changes data communication speed when motor drive preparation is complete
US9148199B2 (en) * 2013-04-01 2015-09-29 Fluke Corporation Prequalification of vectoring before implementation
KR102190015B1 (en) 2018-10-24 2020-12-11 배상대 Pillar-Type Air Tube Dump Device for Collection Construction Waste
KR102181244B1 (en) * 2018-12-13 2020-11-20 전주대학교 산학협력단 Fire basket having exit

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479447A (en) 1993-05-03 1995-12-26 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
US5519731A (en) 1994-04-14 1996-05-21 Amati Communications Corporation ADSL compatible discrete multi-tone apparatus for mitigation of T1 noise
JPH0884162A (en) 1994-09-14 1996-03-26 Hitachi Ltd Method for transmitting/receiving digital cable service, transmitter and receiver
US5636246A (en) * 1994-11-16 1997-06-03 Aware, Inc. Multicarrier transmission system
KR100331437B1 (en) 1995-06-30 2002-08-08 삼성전자 주식회사 Adaptive bit switch apparatus of dmt system and method thereof
EP0753948B1 (en) 1995-07-11 2006-06-07 Alcatel Capacity allocation for OFDM
US5756280A (en) 1995-10-03 1998-05-26 International Business Machines Corporation Multimedia distribution network including video switch
US5742527A (en) 1996-03-15 1998-04-21 Motorola, Inc. Flexible asymmetrical digital subscriber line (ADSL) receiver, central office using same, and method therefor
US5781728A (en) 1996-03-15 1998-07-14 Motorola Inc. Flexible asymmetrical digital subscriber line ADSL transmitter, remote terminal using same, and method therefor
US6072779A (en) * 1997-06-12 2000-06-06 Aware, Inc. Adaptive allocation for variable bandwidth multicarrier communication
US6229855B1 (en) * 1996-09-03 2001-05-08 Adc Telecommunications, Inc. Adaptive transmitter for digital transmission
JP3066483B2 (en) 1997-03-04 2000-07-17 郵政省通信総合研究所長 Digital mobile radio communication method
JP3078262B2 (en) 1997-08-28 2000-08-21 住友電気工業株式会社 Communication device
US6317495B1 (en) * 1997-12-19 2001-11-13 Wm. Marsh Rice University Spectral optimization and joint signaling techniques with multi-line separation for communication in the presence of crosstalk
JP3082743B2 (en) * 1998-05-08 2000-08-28 日本電気株式会社 Multi-carrier transmission system and multi-carrier transmission method

Also Published As

Publication number Publication date
US6510184B1 (en) 2003-01-21
SG80612A1 (en) 2001-05-22
JP3082756B2 (en) 2000-08-28
TW423231B (en) 2001-02-21
CN1232327A (en) 1999-10-20
CA2262349C (en) 2004-01-20
JP2000078105A (en) 2000-03-14
AU749100B2 (en) 2002-06-20
CN1115005C (en) 2003-07-16
MY122484A (en) 2006-04-29
AU1846499A (en) 1999-09-09

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