WO2004042978A3 - Modem data constellation design - Google Patents

Modem data constellation design Download PDF

Info

Publication number
WO2004042978A3
WO2004042978A3 PCT/US2003/033269 US0333269W WO2004042978A3 WO 2004042978 A3 WO2004042978 A3 WO 2004042978A3 US 0333269 W US0333269 W US 0333269W WO 2004042978 A3 WO2004042978 A3 WO 2004042978A3
Authority
WO
WIPO (PCT)
Prior art keywords
power
digital
adc
network
analog
Prior art date
Application number
PCT/US2003/033269
Other languages
French (fr)
Other versions
WO2004042978A2 (en
Inventor
Jinguo Yu
Original Assignee
Agere Systems Inc
Jinguo Yu
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 Agere Systems Inc, Jinguo Yu filed Critical Agere Systems Inc
Priority to JP2004550056A priority Critical patent/JP4451785B2/en
Priority to EP20030773291 priority patent/EP1563613A4/en
Priority to AU2003279986A priority patent/AU2003279986A1/en
Publication of WO2004042978A2 publication Critical patent/WO2004042978A2/en
Publication of WO2004042978A3 publication Critical patent/WO2004042978A3/en

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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • H04L5/1453—Negotiation of transmission parameters prior to communication of modulation type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back

Abstract

A method, system, and computer program product is disclosed for determining the optimal power of the downstream data signal transmitted by a digital server and designing a constellation based on this determination. Digital and analog loss is compensated for by calculating the constellation power, taking into consideration the client modem ADC's dynamic range, the total loss across the network (both digital and analog losses), and the constrained maximum power of the digital network, so that the power of the transmitted signal at the input of the decoder=s (client modem=s) ADC is less than but as close as possible, and preferably equal to, the ADC=s maximum average power, PADC.
PCT/US2003/033269 2002-10-31 2003-10-20 Modem data constellation design WO2004042978A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2004550056A JP4451785B2 (en) 2002-10-31 2003-10-20 Modem data constellation design
EP20030773291 EP1563613A4 (en) 2002-10-31 2003-10-20 Modem data constellation design
AU2003279986A AU2003279986A1 (en) 2002-10-31 2003-10-20 Modem data constellation design

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/284,860 US6888885B2 (en) 2002-10-31 2002-10-31 Modem data constellation design including power compensation for analog loss and utilization of maximum dynamic range of CODEC
US10/284,860 2002-10-31

Publications (2)

Publication Number Publication Date
WO2004042978A2 WO2004042978A2 (en) 2004-05-21
WO2004042978A3 true WO2004042978A3 (en) 2004-11-18

Family

ID=32174998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/033269 WO2004042978A2 (en) 2002-10-31 2003-10-20 Modem data constellation design

Country Status (5)

Country Link
US (1) US6888885B2 (en)
EP (1) EP1563613A4 (en)
JP (1) JP4451785B2 (en)
AU (1) AU2003279986A1 (en)
WO (1) WO2004042978A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10212198B1 (en) 2017-08-02 2019-02-19 Star2Star Communications, LLC Communication node, system, and method for optimized dynamic codec selection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6661847B1 (en) * 1999-05-20 2003-12-09 International Business Machines Corporation Systems methods and computer program products for generating and optimizing signal constellations

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965641A (en) 1989-02-21 1990-10-23 Motorola, Inc. Processor modem
US5394437A (en) 1992-10-20 1995-02-28 At&T Corp. High-speed modem synchronized to a remote CODEC
US5406583A (en) 1993-06-21 1995-04-11 At&T Corp. Modem with received signals and transmitted signals comprising signal sets
US5528625A (en) 1994-01-03 1996-06-18 At&T Corp. High speed quantization-level-sampling modem with equalization arrangement
US6421394B1 (en) 1998-12-31 2002-07-16 Oguz Tanrikulu Computer method and apparatus for modem point slicing
US6178200B1 (en) 1999-01-28 2001-01-23 Pctel, Inc. Constellation design for a PCM modem
EP1206865B1 (en) * 1999-07-31 2011-03-23 AltoCom, Inc. Impairment compensation sequence and related techniques for data communication
US6266376B1 (en) 2000-02-04 2001-07-24 Motorola, Inc. System and method for adjusting PCM data frames for robbed bit signaling in a telephone network

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6661847B1 (en) * 1999-05-20 2003-12-09 International Business Machines Corporation Systems methods and computer program products for generating and optimizing signal constellations

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1563613A4 *

Also Published As

Publication number Publication date
US20040086032A1 (en) 2004-05-06
WO2004042978A2 (en) 2004-05-21
EP1563613A4 (en) 2010-12-22
AU2003279986A1 (en) 2004-06-07
US6888885B2 (en) 2005-05-03
JP4451785B2 (en) 2010-04-14
AU2003279986A8 (en) 2004-06-07
JP2006507724A (en) 2006-03-02
EP1563613A2 (en) 2005-08-17

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