DE69921255D1 - Verfahren und Vorrichtung zur Einstellung des Pilottonsignals gegenüber einem Eingangssignal - Google Patents

Verfahren und Vorrichtung zur Einstellung des Pilottonsignals gegenüber einem Eingangssignal

Info

Publication number
DE69921255D1
DE69921255D1 DE69921255T DE69921255T DE69921255D1 DE 69921255 D1 DE69921255 D1 DE 69921255D1 DE 69921255 T DE69921255 T DE 69921255T DE 69921255 T DE69921255 T DE 69921255T DE 69921255 D1 DE69921255 D1 DE 69921255D1
Authority
DE
Germany
Prior art keywords
relation
adjusting
pilot tone
input signal
signal
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.)
Expired - Lifetime
Application number
DE69921255T
Other languages
English (en)
Other versions
DE69921255T2 (de
Inventor
William Wei Zhou
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69921255D1 publication Critical patent/DE69921255D1/de
Publication of DE69921255T2 publication Critical patent/DE69921255T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H03F1/3235—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction using a pilot signal
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
DE69921255T 1998-08-20 1999-08-10 Verfahren und Vorrichtung zur Einstellung des Pilottonsignals gegenüber einem Eingangssignal Expired - Lifetime DE69921255T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US137915 1998-08-20
US09/137,915 US6553211B1 (en) 1998-08-20 1998-08-20 Method and apparatus for adjusting pilot signal relative to input signal

Publications (2)

Publication Number Publication Date
DE69921255D1 true DE69921255D1 (de) 2004-11-25
DE69921255T2 DE69921255T2 (de) 2005-11-03

Family

ID=22479616

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69921255T Expired - Lifetime DE69921255T2 (de) 1998-08-20 1999-08-10 Verfahren und Vorrichtung zur Einstellung des Pilottonsignals gegenüber einem Eingangssignal

Country Status (7)

Country Link
US (1) US6553211B1 (de)
EP (1) EP0982850B1 (de)
JP (1) JP3443372B2 (de)
KR (1) KR100697960B1 (de)
AU (1) AU4460199A (de)
CA (1) CA2275842A1 (de)
DE (1) DE69921255T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4751508B2 (ja) * 2000-12-07 2011-08-17 株式会社日立国際電気 フィードフォワード型共通増幅装置
US6897723B2 (en) 2000-12-22 2005-05-24 Paradigm Wireless Communications, Llc Feed-forward amplifier loop control utilizing if signal processing
WO2002052717A2 (en) * 2000-12-22 2002-07-04 Paradigm Wireless Communications Llc Feed-forward amplifier loop control utilizing if signal processing
US7170342B2 (en) 2002-12-10 2007-01-30 Ntt Docomo, Inc. Linear power amplification method and linear power amplifier
KR20050089159A (ko) 2002-12-18 2005-09-07 파워웨이브 테크놀로지스, 인크. 제어를 위해 페널티 및 플로어를 사용하는 지연 미스매치된피드 포워드 증폭기 시스템
AU2003293522A1 (en) * 2002-12-18 2004-07-29 Powerwave Technologies, Inc. Feed forward amplifier system using penalties and floors for optimal control
US7110739B2 (en) * 2003-04-10 2006-09-19 Powerwave Technologies, Inc. Multi-transmitter communication system employing anti-phase pilot signals
US7123086B2 (en) * 2003-05-07 2006-10-17 Powerwave Technologies, Inc. Feed forward amplifier employing positive feedback pilot generation
KR100698125B1 (ko) * 2005-06-28 2007-03-26 엘지전자 주식회사 간섭 제거 방법과, 그를 위한 통신단말기
US7675846B2 (en) * 2006-06-23 2010-03-09 Telefonaktiebolaget L M Ericsson (Publ) Method and system for using the synchronization channel to obtain measurements in a cellular communications system
US7904233B2 (en) * 2008-04-08 2011-03-08 Gm Global Technology Operations, Inc. Fuel injection measurement and diagnostics
EP3116145B1 (de) 2014-03-31 2018-06-13 Huawei Technologies Co. Ltd. Verfahren zur steuerung der modulationstiefe eines pilotfrequenzsignals, sender und pilotfrequenzsperrvorrichtung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238196A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed forward amplifier with pre-distortion
US5625893A (en) * 1993-07-26 1997-04-29 Kahn; Leonard R. Satellite communications system with receiver distortion correction which is controlled by up-link transmission equipment
US5838733A (en) * 1993-12-23 1998-11-17 Motorola, Inc. Method and apparatus for mitigating signal distortion in a communication system
JP3320210B2 (ja) * 1994-05-31 2002-09-03 富士通株式会社 初期動作時不要波出力防止型フィードフォワード増幅装置
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5644268A (en) * 1995-01-06 1997-07-01 Spectrian, Inc. Feed forward RF amplifier for combined signal and error amplification
GB2300502B (en) * 1995-04-11 1998-05-27 Int Mobile Satellite Org An electronic circuit for and a method of decoding a signal
US5913152A (en) * 1995-12-29 1999-06-15 Solid Electronics Labs FM composite signal processor
JP2959458B2 (ja) * 1996-01-19 1999-10-06 日本電気株式会社 送信電力制御方法
US5796304A (en) * 1996-04-24 1998-08-18 Powerwave Technologies, Inc. Broadband amplifier with quadrature pilot signal
US5770971A (en) * 1996-07-26 1998-06-23 Northern Telecom Limited Distortion compensation control for a power amplifier
US5862459A (en) * 1996-08-27 1999-01-19 Telefonaktiebolaget Lm Ericsson Method of and apparatus for filtering intermodulation products in a radiocommunication system
US5999048A (en) * 1998-01-13 1999-12-07 Lucent Technologies Inc. Method and apparatus for spread spectrum pilot extraction for RF amplifiers
JPH11261343A (ja) * 1998-03-10 1999-09-24 Fujitsu Ltd フィードフォーワード増幅器

Also Published As

Publication number Publication date
AU4460199A (en) 2000-03-09
KR100697960B1 (ko) 2007-03-23
CA2275842A1 (en) 2000-02-20
EP0982850B1 (de) 2004-10-20
US6553211B1 (en) 2003-04-22
JP2000196367A (ja) 2000-07-14
JP3443372B2 (ja) 2003-09-02
KR20000017417A (ko) 2000-03-25
EP0982850A1 (de) 2000-03-01
DE69921255T2 (de) 2005-11-03

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