AU2001214631A1 - Apparatus for reducing phase noise in a local carrier signal caused by powering down of circuit elements during discontinuous data transmissions - Google Patents

Apparatus for reducing phase noise in a local carrier signal caused by powering down of circuit elements during discontinuous data transmissions

Info

Publication number
AU2001214631A1
AU2001214631A1 AU2001214631A AU1463101A AU2001214631A1 AU 2001214631 A1 AU2001214631 A1 AU 2001214631A1 AU 2001214631 A AU2001214631 A AU 2001214631A AU 1463101 A AU1463101 A AU 1463101A AU 2001214631 A1 AU2001214631 A1 AU 2001214631A1
Authority
AU
Australia
Prior art keywords
carrier signal
transmitter
signal
circuit elements
phase noise
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.)
Abandoned
Application number
AU2001214631A
Inventor
Kevin G. Gard
Kamal Gurkanwal Sahota
Brett C. Walker
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of AU2001214631A1 publication Critical patent/AU2001214631A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • 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
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A device for use in a wireless communications system that reduces the amount of phase noise in the carrier signals due to powering down circuit elements for reducing power consumption. The device includes one or more carrier signal generators coupled to a transmitter. Each signal generator provides a respective carrier signal. The transmitter receives and modulates one or more carrier signals with one or more input signals to generate a modulated signal, which is gated on and off during a discontinnous data transmission. The transmitter includes one or more input buffers, with each input buffer receiving and buffering a respective carrier signal. The input buffers are maintained biased for the duration of the data transmission, even as the modulated signal is gated on and off, to provide a constant load for the signal generators and to isolate the carrier signal generators from switching noise. Some other active elements in the transmitter may be powered down when the modulated signal is gated off to further reduce power consumption.
AU2001214631A 2000-11-03 2000-11-03 Apparatus for reducing phase noise in a local carrier signal caused by powering down of circuit elements during discontinuous data transmissions Abandoned AU2001214631A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/030409 WO2002037704A1 (en) 2000-11-03 2000-11-03 Apparatus for reducing phase noise in a local carrier signal caused by powering down of circuit elements during discontinuous data transmissions

Publications (1)

Publication Number Publication Date
AU2001214631A1 true AU2001214631A1 (en) 2002-05-15

Family

ID=21741964

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001214631A Abandoned AU2001214631A1 (en) 2000-11-03 2000-11-03 Apparatus for reducing phase noise in a local carrier signal caused by powering down of circuit elements during discontinuous data transmissions

Country Status (9)

Country Link
EP (1) EP1332562B1 (en)
JP (1) JP4870321B2 (en)
KR (1) KR100824579B1 (en)
CN (1) CN1205757C (en)
AT (1) ATE376720T1 (en)
AU (1) AU2001214631A1 (en)
DE (1) DE60036887T2 (en)
HK (1) HK1060225A1 (en)
WO (1) WO2002037704A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004084476A1 (en) * 2003-03-21 2004-09-30 Siemens Aktiengesellschaft A communications apparatus and method
CN102377973A (en) * 2010-08-16 2012-03-14 深圳市奇脉电子技术有限公司 Modulation video anti-interference device
CN102468823B (en) * 2010-11-03 2015-12-02 北京普源精电科技有限公司 The method and apparatus of gear switching noise of relay is avoided in signal source
CN102468822B (en) * 2010-11-03 2016-04-06 北京普源精电科技有限公司 The method and apparatus of gear switching noise of relay is avoided in signal source
US9641139B2 (en) * 2014-11-17 2017-05-02 Mediatek Inc. Amplifier and related method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62132434A (en) * 1985-12-05 1987-06-15 Clarion Co Ltd Gate circuit
JP3258791B2 (en) * 1993-04-16 2002-02-18 三洋電機株式会社 Communication device
JP3395319B2 (en) * 1994-01-25 2003-04-14 ソニー株式会社 Transmitter / receiver using the time-division transmitting / receiving method
JPH08288882A (en) * 1995-02-13 1996-11-01 Hitachi Ltd High frequency circuit for digital mobile communication equipment
KR19990011052A (en) * 1997-07-21 1999-02-18 윤종용 Transceiver device for wideband code division multiple access wireless subscriber network base station system
JP2000295119A (en) * 1999-04-06 2000-10-20 Toshiba Corp Radio transmitter

Also Published As

Publication number Publication date
CN1205757C (en) 2005-06-08
WO2002037704A1 (en) 2002-05-10
ATE376720T1 (en) 2007-11-15
EP1332562B1 (en) 2007-10-24
KR20030045163A (en) 2003-06-09
DE60036887T2 (en) 2008-07-24
HK1060225A1 (en) 2004-07-30
KR100824579B1 (en) 2008-04-23
CN1461532A (en) 2003-12-10
JP4870321B2 (en) 2012-02-08
DE60036887D1 (en) 2007-12-06
EP1332562A1 (en) 2003-08-06
JP2004513558A (en) 2004-04-30

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