WO1999052219A8 - Idle mode for digital subscriber line - Google Patents

Idle mode for digital subscriber line

Info

Publication number
WO1999052219A8
WO1999052219A8 PCT/US1999/007548 US9907548W WO9952219A8 WO 1999052219 A8 WO1999052219 A8 WO 1999052219A8 US 9907548 W US9907548 W US 9907548W WO 9952219 A8 WO9952219 A8 WO 9952219A8
Authority
WO
WIPO (PCT)
Prior art keywords
symbol
idle
modulated
detection
dsl
Prior art date
Application number
PCT/US1999/007548
Other languages
French (fr)
Other versions
WO1999052219A1 (en
Inventor
A Joseph Mueller
Richard G C Williams
John Rosenlof
Original Assignee
3Com 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 3Com Corp filed Critical 3Com Corp
Priority to AU33852/99A priority Critical patent/AU3385299A/en
Publication of WO1999052219A1 publication Critical patent/WO1999052219A1/en
Publication of WO1999052219A8 publication Critical patent/WO1999052219A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

A system and method for generating and repetitively transmitting a single modulated symbol during idle periods in user data in a digital subscriber line (DSL) communication system. The spectral properties of the transmitted modulated symbol match those of user data modulated symbols. For an asynchronous DSL system, a preferred idle symbol is the 'superframe' synchronization symbol. A separate modulated end-of-idle symbol is the idle symbol shifted by a 180° phase shift. The transmitter in a DSL modem would calculate the idle state modulated symbol once at the start of the idle period and then simply repeat this symbol until the end of the period, in which case the transmitter would invert the final idle symbol. At the receiver (600), symbol detection (606) can be performed in the time-domain for faster and easier detection, requiring little processing power. Upon detection the end-of-idle symbol (610), the receiver exits the idle mode (614).
PCT/US1999/007548 1998-04-06 1999-04-06 Idle mode for digital subscriber line WO1999052219A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33852/99A AU3385299A (en) 1998-04-06 1999-04-06 Idle mode for digital subscriber line

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/056,166 1998-04-06
US09/056,166 US6052411A (en) 1998-04-06 1998-04-06 Idle mode for digital subscriber line

Publications (2)

Publication Number Publication Date
WO1999052219A1 WO1999052219A1 (en) 1999-10-14
WO1999052219A8 true WO1999052219A8 (en) 2000-03-16

Family

ID=22002612

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/007548 WO1999052219A1 (en) 1998-04-06 1999-04-06 Idle mode for digital subscriber line

Country Status (3)

Country Link
US (1) US6052411A (en)
AU (1) AU3385299A (en)
WO (1) WO1999052219A1 (en)

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US20030026282A1 (en) * 1998-01-16 2003-02-06 Aware, Inc. Splitterless multicarrier modem
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US6445730B1 (en) 1998-01-26 2002-09-03 Aware, Inc. Multicarrier transmission system with low power sleep mode and rapid-on capability
KR101006609B1 (en) * 1998-06-26 2011-01-07 어웨어, 인크. Multicarrier communication with variable overhead rate
US6233250B1 (en) * 1998-11-13 2001-05-15 Integrated Telecom Express, Inc. System and method for reducing latency in software modem for high-speed synchronous transmission
US6353628B1 (en) * 1998-12-15 2002-03-05 Nortel Networks Limited Apparatus, method and system having reduced power consumption in a multi-carrier wireline environment
DE19901756B4 (en) * 1999-01-18 2004-02-05 Siemens Ag Method for operating a device terminating a subscriber line on the subscriber or exchange side in a data transmission network
US6519280B1 (en) * 1999-03-02 2003-02-11 Legerity, Inc. Method and apparatus for inserting idle symbols
US20060274840A1 (en) * 2005-06-06 2006-12-07 Marcos Tzannes Method for seamlessly changing power modes in an ADSL system
US6775320B1 (en) 1999-03-12 2004-08-10 Aware, Inc. Method and a multi-carrier transceiver supporting dynamic switching between active application sets
US6567473B1 (en) * 1999-03-12 2003-05-20 Aware, Inc. Method for seamlessly changing power modes in a ADSL system
US6560197B1 (en) 1999-06-29 2003-05-06 3Com Corporation Distributed XDSL modem pool with front-end idle mode processing
WO2001013624A1 (en) * 1999-08-13 2001-02-22 Kenetec, Inc. System providing enhanced digital subscriber line service
US6546046B1 (en) * 1999-11-17 2003-04-08 Conexant Systems, Inc. DSL pre-synchronization auto baud
EP1755253B1 (en) 2000-01-07 2011-07-13 Aware, Inc. Diagnostic method and transceiver for multicarrier modems
US7076016B1 (en) 2000-02-28 2006-07-11 Advanced Micro Devices, Inc. Method and apparatus for buffering data samples in a software based ADSL modem
US6952417B1 (en) * 2000-03-13 2005-10-04 Lucent Technologies Inc. System and method for selectively providing data communications in an XDSL communication system
US7085283B1 (en) * 2000-03-15 2006-08-01 Realtek Semiconductor Corp. Automatic data CPU load reduction in a host-signal processing (HSP) based ADSL modem
EP1269670B1 (en) * 2000-04-04 2011-01-05 Tioga Technologies Transmission of stationary signals in quiescent mode
DE60127395T2 (en) 2000-04-18 2007-12-06 Aware, Inc., Bedford DATA ALLOCATION WITH CHANGED SIGNAL NOISE LEVEL
US7130298B1 (en) * 2000-07-20 2006-10-31 Verizon Corporate Services Group Inc. Systems and methods implementing internet screen dialing for circuit switched telephones
US6885699B2 (en) * 2000-07-24 2005-04-26 Stmicroelectronics Ltd. Semi-stationary quiescent mode transmission
US7054379B2 (en) * 2000-10-16 2006-05-30 Broadcom Corporation Data scrambler generation of pseudo-random bit sequence for semi-stationary Q-mode signal
JP3897301B2 (en) * 2001-01-16 2007-03-22 アウェア， インコーポレイテッド Fast initialization using seamless rate adaptation
WO2002078244A1 (en) * 2001-03-27 2002-10-03 Aware, Inc. Receiver transparent q-mode
US20060203927A1 (en) * 2001-03-27 2006-09-14 Aware, Inc. Systems and methods for implementing receiver transparent Q-mode
US20030039306A1 (en) * 2001-04-06 2003-02-27 Redfern Arthur John Low peak-to-average ratio quiescent mode architecture and signal design method for DMT modems
EP1405447A4 (en) * 2001-06-19 2009-12-30 Baker Hughes Inc Full duplex dmt modulation in well-logging applications
GB2408432B (en) * 2001-06-19 2005-07-27 Baker Hughes Inc Full duplex DMT modulation in wel-logging applications
TW516277B (en) * 2001-08-01 2003-01-01 Via Tech Inc Receiver and compensation method of the same
DE10201415B4 (en) * 2002-01-15 2004-12-09 Infineon Technologies Ag Method for establishing a data transmission connection between xDSL transceivers and xDSL transceivers
KR100450759B1 (en) * 2002-01-25 2004-10-01 한국전자통신연구원 A method and an apparatus for transmitting/receiving Leased Line Data
US7277517B1 (en) 2002-11-15 2007-10-02 3Com Corporation Method for achieving symbol alignment to a pre-existing ADSL data exchange
US7027590B2 (en) * 2003-04-28 2006-04-11 Lucent Technologies Inc. Dynamic allocation of overhead voltage to support simultaneous transmission of signals on a telecommunication line
US20040228341A1 (en) * 2003-05-12 2004-11-18 Avi Costo De-activation, at least in part, of receiver, in response, at least in part, to determination that an idle condition exists
US8000278B2 (en) * 2003-05-12 2011-08-16 Intel Corporation De-activation, at least in part, of receiver, in response, at least in part, to determination that an idle condition exists
CN100490430C (en) * 2005-05-27 2009-05-20 华为技术有限公司 Multi-carrier signal clipping device and method
US9401729B2 (en) 2014-02-03 2016-07-26 Valens Semiconductor Ltd. Maintaining running disparity while utilizing different line-codes
US20150222384A1 (en) 2014-02-03 2015-08-06 Valens Semiconductor Ltd. Changing receiver configuration by replacing certain idle words with bitwise complement words
US9594719B2 (en) 2014-02-03 2017-03-14 Valens Semiconductor Ltd. Seamless addition of high bandwidth lanes
US9270403B2 (en) 2014-02-03 2016-02-23 Valens Semiconductor Ltd. Indicating end of idle sequence by replacing expected code words while maintaining running disparity
US9270415B2 (en) 2014-02-03 2016-02-23 Valens Semiconductor Ltd. Encoding payloads according to data types while maintaining running disparity
US9270411B2 (en) 2014-02-03 2016-02-23 Valens Semiconductor Ltd. Indicating end of idle sequence by replacing certain code words with alternative code words
CN110266426B (en) 2014-08-25 2021-03-05 第一媒体有限责任公司 Dynamic configuration of flexible OFDM PHY Transmission data frame preamble
TWI809802B (en) * 2015-03-09 2023-07-21 美商第一媒體有限責任公司 Communication systems, methods for wireless communication and transmitting devices
CN114172592B (en) * 2021-12-24 2023-12-19 中国电子科技集团公司第十四研究所 Calibration system and calibration method of radio frequency digital T/R assembly comprehensive test system

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Also Published As

Publication number Publication date
US6052411A (en) 2000-04-18
AU3385299A (en) 1999-10-25
WO1999052219A1 (en) 1999-10-14

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