WO2003013048A3 - Power backoff method and system for g.shdsl modem using frequency domain geometric signal to noise ratio - Google Patents

Power backoff method and system for g.shdsl modem using frequency domain geometric signal to noise ratio Download PDF

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Publication number
WO2003013048A3
WO2003013048A3 PCT/US2002/024401 US0224401W WO03013048A3 WO 2003013048 A3 WO2003013048 A3 WO 2003013048A3 US 0224401 W US0224401 W US 0224401W WO 03013048 A3 WO03013048 A3 WO 03013048A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency domain
noise ratio
shdsl
present
modem
Prior art date
Application number
PCT/US2002/024401
Other languages
French (fr)
Other versions
WO2003013048A2 (en
WO2003013048A9 (en
Inventor
Michael J Graziano
Tsung-Liang Chen
Sujai Chari
Gerard T Luk-Pat
Eric Tsing-Ho Leung
Original Assignee
Globespan Virata Inc
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
Priority claimed from US10/050,533 external-priority patent/US20030101206A1/en
Priority claimed from US10/050,532 external-priority patent/US20030099286A1/en
Priority claimed from US10/050,128 external-priority patent/US7113491B2/en
Priority claimed from US10/050,529 external-priority patent/US20030086486A1/en
Priority claimed from US10/050,129 external-priority patent/US20030099285A1/en
Application filed by Globespan Virata Inc filed Critical Globespan Virata Inc
Priority to EP02756875A priority Critical patent/EP1415426A2/en
Priority to AU2002322856A priority patent/AU2002322856A1/en
Publication of WO2003013048A2 publication Critical patent/WO2003013048A2/en
Publication of WO2003013048A9 publication Critical patent/WO2003013048A9/en
Publication of WO2003013048A3 publication Critical patent/WO2003013048A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/544—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices for evaluating functions by calculation
    • G06F7/556—Logarithmic or exponential functions
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
    • H04L25/4975—Correlative coding using Tomlinson precoding, Harashima precoding, Trellis precoding or GPRS
    • 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
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • 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
    • H04L5/1446—Negotiation of transmission parameters prior to communication of transmission speed
    • 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

The present invention is directed to methods and systems for determining maximum power backoff for modems operating according to G.SHDSL and other standards using frequency domain geometric signal to noise ratio (SNR). In one example, a G.SHDSL standard may specify a minimum power back off (PBO) that may be required for modem implementation. Although the standard specifies the minimum back off, it is desirable to be able to increase the POB beyond this level. The reasons for this may include reduced power consumption and reduced crosstalk generated by a modem. The present invention discloses a method and system for determining an absolute maximum power PBO that may be tolerated and still meet bit error rate (BER) and/or other requirements. The present invention implements a geometric mean to compute SNR in a frequency domain over a pass-band of a transmit spectrum.
PCT/US2002/024401 2001-07-31 2002-07-31 Power backoff method and system for g.shdsl modem using frequency domain geometric signal to noise ratio WO2003013048A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02756875A EP1415426A2 (en) 2001-07-31 2002-07-31 Power backoff method and system for g.shdsl modem using frequency domain geometric signal to noise ratio
AU2002322856A AU2002322856A1 (en) 2001-07-31 2002-07-31 Power backoff method and system for g.shdsl modem using frequency domain geometric signal to noise ratio

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
US30858701P 2001-07-31 2001-07-31
US60/308,587 2001-07-31
US10/050,532 2002-01-18
US10/050,533 2002-01-18
US10/050,128 2002-01-18
US10/050,533 US20030101206A1 (en) 2001-07-31 2002-01-18 Method and system for estimating a base-2 logarithm of a number
US10/050,532 US20030099286A1 (en) 2001-07-31 2002-01-18 Method and system for shaping transmitted power spectral density according to line conditions
US10/050,129 2002-01-18
US10/050,128 US7113491B2 (en) 2001-07-31 2002-01-18 Method and system for varying an echo canceller filter length based on data rate
US10/050,529 US20030086486A1 (en) 2001-07-31 2002-01-18 Method and system for determining maximum power backoff using frequency domain geometric signal to noise ratio
US10/050,529 2002-01-18
US10/050,129 US20030099285A1 (en) 2001-07-31 2002-01-18 Method and system for determining data rate using sub-band capacity

Publications (3)

Publication Number Publication Date
WO2003013048A2 WO2003013048A2 (en) 2003-02-13
WO2003013048A9 WO2003013048A9 (en) 2003-04-10
WO2003013048A3 true WO2003013048A3 (en) 2003-08-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/024401 WO2003013048A2 (en) 2001-07-31 2002-07-31 Power backoff method and system for g.shdsl modem using frequency domain geometric signal to noise ratio

Country Status (3)

Country Link
EP (1) EP1415426A2 (en)
AU (1) AU2002322856A1 (en)
WO (1) WO2003013048A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1643658A1 (en) 2004-10-04 2006-04-05 Sony Deutschland GmbH Power line communication method
US7924943B2 (en) * 2005-02-07 2011-04-12 Broadcom Corporation Method and system for optional closed loop mechanism with adaptive modulations for multiple input multiple output (MIMO) wireless local area network (WLAN) system
CN112640330B (en) * 2018-08-10 2022-05-13 苹果公司 Downlink signal and noise control for testing user equipment performance requirements
US10482979B1 (en) * 2018-08-31 2019-11-19 Micron Technology, Inc. Capacitive voltage modifier for power management
CN114465680B (en) * 2022-02-15 2024-01-19 上海兆煊微电子有限公司 High-precision RSSI estimation method applied to low-power consumption Bluetooth
CN116184968B (en) * 2023-04-24 2023-07-11 山东星峰面粉机械有限公司 Production control method and system for corn cooked powder production line

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061427A (en) * 1997-08-30 2000-05-09 Samsung Electronics Co., Ltd. Transmission power control method in asymmetric digital subscriber line system
WO2001043415A2 (en) * 1999-12-09 2001-06-14 3Com Corporation Method for reducing noise from an asymmetric digital subscriber line modem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061427A (en) * 1997-08-30 2000-05-09 Samsung Electronics Co., Ltd. Transmission power control method in asymmetric digital subscriber line system
WO2001043415A2 (en) * 1999-12-09 2001-06-14 3Com Corporation Method for reducing noise from an asymmetric digital subscriber line modem

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
FRIESE M ET AL: "Power back-off strategies for very high bit rate digital subscriber line transmission systems", IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, GLOBECOM 99. RIO DE JANEIRO, BRAZIL, vol. 2, 5 December 1999 (1999-12-05) - 9 December 1999 (1999-12-09), IEEE, NEW YORK, NY, US, pages 1150 - 1154, XP001016895, ISBN: 0-7803-5797-3 *
JACOBSEN K.S.: "Text proposal for upstream power back-off", ETSI TM6 MEETING (TD15), AMSTERDAM, THE NETHERLANDS, 29 November 1999 (1999-11-29) - 3 December 1999 (1999-12-03), pages 1 - 6, XP002224208 *
LEKE A ET AL: "Channel loading effects on power limited wireless transmitters utilizing discrete multitone modulation", MICROWAVE SYMPOSIUM DIGEST, IEEE MTT-S INTERNATIONAL DENVER, CO, USA, 8 June 1997 (1997-06-08) - 13 June 1997 (1997-06-13), IEEE, NEW YORK, NY, USA, US, pages 1147 - 1150, XP010228246, ISBN: 0-7803-3814-6 *
SISTANIZADEH K ET AL: "Multi-tone transmission for asymmetric digital subscriber lines (ADSL)", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC). GENEVA, vol. 3, 23 May 1993 (1993-05-23) - 26 May 1993 (1993-05-26), IEEE, NEW YORK, US, pages 756 - 760, XP010137079, ISBN: 0-7803-0950-2 *

Also Published As

Publication number Publication date
WO2003013048A2 (en) 2003-02-13
AU2002322856A1 (en) 2003-02-17
WO2003013048A9 (en) 2003-04-10
EP1415426A2 (en) 2004-05-06

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