AU2001283105A1 - Constrained-envelope transmitter and method therefor - Google Patents

Constrained-envelope transmitter and method therefor

Info

Publication number
AU2001283105A1
AU2001283105A1 AU2001283105A AU8310501A AU2001283105A1 AU 2001283105 A1 AU2001283105 A1 AU 2001283105A1 AU 2001283105 A AU2001283105 A AU 2001283105A AU 8310501 A AU8310501 A AU 8310501A AU 2001283105 A1 AU2001283105 A1 AU 2001283105A1
Authority
AU
Australia
Prior art keywords
constrained
method therefor
envelope transmitter
envelope
transmitter
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
AU2001283105A
Inventor
Bradley P. Badke
Bruce A Cochran
Ronald D Mccallister
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.)
Conexant Systems Worldwide Inc
Original Assignee
Sicom 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 Sicom Inc filed Critical Sicom Inc
Publication of AU2001283105A1 publication Critical patent/AU2001283105A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/717—Pulse-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3494—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems using non - square modulating pulses, e.g. using raised cosine pulses; Partial response QAM, i.e. with partial response pulse shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H04L27/363—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated using non - square modulating pulses, modulators specifically designed for this
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/719—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
AU2001283105A 2000-08-09 2001-08-03 Constrained-envelope transmitter and method therefor Abandoned AU2001283105A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/635,990 US6366619B1 (en) 1998-08-28 2000-08-09 Constrained-envelope transmitter and method therefor
US09/635,990 2000-08-09
PCT/US2001/024400 WO2002013397A2 (en) 2000-08-09 2001-08-03 Constrained-envelope transmitter and method therefor

Publications (1)

Publication Number Publication Date
AU2001283105A1 true AU2001283105A1 (en) 2002-02-18

Family

ID=24549947

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001283105A Abandoned AU2001283105A1 (en) 2000-08-09 2001-08-03 Constrained-envelope transmitter and method therefor

Country Status (7)

Country Link
US (1) US6366619B1 (en)
EP (1) EP1314288A4 (en)
JP (1) JP4898074B2 (en)
CN (3) CN1933468B (en)
AU (1) AU2001283105A1 (en)
TW (1) TW529275B (en)
WO (1) WO2002013397A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6366619B1 (en) * 1998-08-28 2002-04-02 Sicom, Inc. Constrained-envelope transmitter and method therefor
US6996080B1 (en) * 1999-07-23 2006-02-07 Itt Manufacturing Enterprises, Inc. Chip-synchronous CDMA multiplexer and method resulting in constant envelope signals
US6868440B1 (en) * 2000-02-04 2005-03-15 Microsoft Corporation Multi-level skimming of multimedia content using playlists
US6952454B1 (en) * 2000-03-22 2005-10-04 Qualcomm, Incorporated Multiplexing of real time services and non-real time services for OFDM systems
KR100547843B1 (en) * 2001-07-13 2006-02-01 삼성전자주식회사 Apparatus and method for controling transmission power in mobile telecommunications system
US6928121B2 (en) * 2001-09-28 2005-08-09 Intersil Americas, Inc. Digital transmitter with constrained envelope and spectral regrowth over a plurality of carriers
US6999522B2 (en) * 2001-09-28 2006-02-14 Intersil Americas, Inc. Constrained-envelope digital communications transmitter and method therefor
DE10206966B4 (en) * 2002-02-19 2011-08-11 Rohde & Schwarz GmbH & Co. KG, 81671 Method for estimating gain factors of a CDMA signal
US7203183B2 (en) * 2002-06-26 2007-04-10 International Business Machines Corporation Access point initiated forced roaming based upon bandwidth
JP4110385B2 (en) * 2002-12-02 2008-07-02 日本電気株式会社 Power limiter
GB2402308B (en) * 2003-05-28 2006-01-04 Nokia Corp Par reduction for edge clipper
CN100337484C (en) * 2003-06-20 2007-09-12 华为技术有限公司 Synchronous error measuring method and apparatus with envelope elimination and digital power amplifier restoration
US7295816B2 (en) * 2003-06-30 2007-11-13 Crestcom, Inc. Methods and apparatus for controlling signals
US7251463B2 (en) * 2003-06-30 2007-07-31 Crestcom, Inc. Methods and apparatus for controlling signals
US7783260B2 (en) * 2006-04-27 2010-08-24 Crestcom, Inc. Method and apparatus for adaptively controlling signals
CN100571243C (en) * 2006-07-14 2009-12-16 华为技术有限公司 A kind of group frame synchronization method
US7932763B2 (en) * 2009-04-02 2011-04-26 Mediatek Inc. Signal processing circuit and signal processing method
US8824574B2 (en) * 2009-09-11 2014-09-02 Crestcom, Inc. Transmitting unit that reduces PAPR and method therefor
US8185065B2 (en) * 2009-10-15 2012-05-22 Crestcom, Inc. Transmitting unit that reduces PAPR using out-of-band distortion and method therefor
US8934854B2 (en) 2012-08-29 2015-01-13 Crestcom, Inc. Transmitter with peak-tracking PAPR reduction and method therefor
US9848342B1 (en) 2016-07-20 2017-12-19 Ccip, Llc Excursion compensation in multipath communication systems having performance requirements parameters

Family Cites Families (24)

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Publication number Priority date Publication date Assignee Title
US5049832A (en) 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion
US5381449A (en) 1990-06-12 1995-01-10 Motorola, Inc. Peak to average power ratio reduction methodology for QAM communications systems
US5222104A (en) * 1991-12-30 1993-06-22 Motorola, Inc. Gain control circuit for radio transmitter
US5287387A (en) 1992-03-06 1994-02-15 Motorola, Inc. Low splatter peak-to-average signal reduction
US5479448A (en) 1992-03-31 1995-12-26 At&T Corp. Method and apparatus for providing antenna diversity
US5600676A (en) 1993-07-06 1997-02-04 Ericsson Ge Mobile Communications Inc. Modulation scheme with low envelope variation for mobile radio by constraining a maximum modulus of a differential phase angle
NO944905L (en) 1993-12-21 1995-06-22 Nec Corp Transmitting device for mobile satellite communication equipment
US5579342A (en) 1994-09-22 1996-11-26 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Communications Pre-compensated frequency modulation (PFM)
US5638404A (en) 1994-09-22 1997-06-10 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Communications Pre-compensated frequency modulation (PFM)
US5633893A (en) * 1994-09-29 1997-05-27 Ericsson Inc. Digital modulation method with controlled envelope variation
US5566164A (en) 1994-12-19 1996-10-15 Stanford Telecommunications, Inc. Practical means for digital generation and combination of a multiplicity of CDMA/FDMA signals
US5638403A (en) 1995-04-28 1997-06-10 Motorola, Inc. Low-splatter peak-to-average signal reduction with interpolation
US5621762A (en) 1995-06-12 1997-04-15 Motorola, Inc. Radio with peak power and bandwidth efficient modulation
US5606578A (en) 1995-06-26 1997-02-25 Motorola, Inc. Radio with peak power and bandwidth efficient modulation using asymmetric symbol constellations
US5727026A (en) 1995-11-15 1998-03-10 Motorola, Inc. Method and apparatus for peak suppression using complex scaling values
US5805640A (en) 1996-04-04 1998-09-08 Motorola, Inc. Method and apparatus for conditioning modulated signals for digital communications
US5696794A (en) 1996-04-04 1997-12-09 Motorola, Inc. Method and apparatus for conditioning digitally modulated signals using channel symbol adjustment
JPH1051354A (en) 1996-05-30 1998-02-20 N T T Ido Tsushinmo Kk Ds-cdma transmission method
KR100197885B1 (en) 1996-12-23 1999-06-15 윤종용 Device for protecting base mark of exposure apparatus
JPH10303995A (en) * 1997-04-24 1998-11-13 Matsushita Electric Ind Co Ltd Modulating device
US6366619B1 (en) * 1998-08-28 2002-04-02 Sicom, Inc. Constrained-envelope transmitter and method therefor
US6104761A (en) * 1998-08-28 2000-08-15 Sicom, Inc. Constrained-envelope digital-communications transmission system and method therefor
US6931053B2 (en) * 1998-11-27 2005-08-16 Nortel Networks Limited Peak power and envelope magnitude regulators and CDMA transmitters featuring such regulators
JP4224168B2 (en) * 1999-04-23 2009-02-12 パナソニック株式会社 Base station apparatus and peak power suppression method

Also Published As

Publication number Publication date
JP4898074B2 (en) 2012-03-14
CN1468485A (en) 2004-01-14
TW529275B (en) 2003-04-21
CN1933468A (en) 2007-03-21
CN1254943C (en) 2006-05-03
CN1863183A (en) 2006-11-15
JP2004506373A (en) 2004-02-26
US6366619B1 (en) 2002-04-02
CN1933468B (en) 2011-04-06
EP1314288A4 (en) 2005-04-13
CN1863183B (en) 2010-06-02
WO2002013397A2 (en) 2002-02-14
WO2002013397A3 (en) 2002-08-01
EP1314288A2 (en) 2003-05-28

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