NO20021311L - Fasedreining av modulerte signaler - Google Patents

Fasedreining av modulerte signaler

Info

Publication number
NO20021311L
NO20021311L NO20021311A NO20021311A NO20021311L NO 20021311 L NO20021311 L NO 20021311L NO 20021311 A NO20021311 A NO 20021311A NO 20021311 A NO20021311 A NO 20021311A NO 20021311 L NO20021311 L NO 20021311L
Authority
NO
Norway
Prior art keywords
phase rotation
signal path
circuit elements
data
transmit signal
Prior art date
Application number
NO20021311A
Other languages
English (en)
Other versions
NO20021311D0 (no
Inventor
Peter Black
Michael A Howard
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 NO20021311D0 publication Critical patent/NO20021311D0/no
Publication of NO20021311L publication Critical patent/NO20021311L/no

Links

Classifications

    • 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
    • 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
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Teknikk for innregulering av fasedreiningen av et modulert signal for å kompensere for den fasedreining som er innført av kretselementer i en sendersignalvei for en sender (100). Kretselementene kan være direkte innkoplet i eller driftsmessig koplet til denne sendersignalvei. En fasedreining som tilsvarer en bestemt driftstilstand som er fastlagt av mottatte styresignaler bestemmes først, og deretter dreies fasen av det modulerte signal en vinkelverdi som er relatert til den bestemte fasedreining. Fasedreiningskompen-sasjonen kan utføres på forskjellige steder i sendersig-nalveien ved å dreie fasen av de digitale data, kvasistøysekvenser som brukes for spektralspredning av disse data eller bærersignaler som brukes til å modulere dem.
NO20021311A 1999-09-17 2002-03-15 Fasedreining av modulerte signaler NO20021311L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39742999A 1999-09-17 1999-09-17
PCT/US2000/025472 WO2001020866A1 (en) 1999-09-17 2000-09-14 Method and apparatus for rotating a phase of a modulated signal

Publications (2)

Publication Number Publication Date
NO20021311D0 NO20021311D0 (no) 2002-03-15
NO20021311L true NO20021311L (no) 2002-05-15

Family

ID=23571166

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20021311A NO20021311L (no) 1999-09-17 2002-03-15 Fasedreining av modulerte signaler

Country Status (18)

Country Link
US (1) US7106782B2 (no)
EP (1) EP1212878B1 (no)
JP (1) JP4680458B2 (no)
KR (2) KR100869456B1 (no)
CN (2) CN100366035C (no)
AT (1) ATE388563T1 (no)
AU (1) AU776175B2 (no)
BR (1) BR0014022A (no)
CA (1) CA2386647A1 (no)
DE (1) DE60038241T2 (no)
HK (1) HK1049936B (no)
IL (2) IL148367A0 (no)
MX (1) MXPA02002806A (no)
NO (1) NO20021311L (no)
RU (1) RU2275749C2 (no)
TW (1) TW498664B (no)
UA (1) UA67861C2 (no)
WO (1) WO2001020866A1 (no)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7545849B1 (en) * 2003-03-28 2009-06-09 Google Inc. Signal spectrum spreading and combining system and method
US8374218B2 (en) 2000-12-05 2013-02-12 Google Inc. Combining signals with a shuffled-hadamard function
US8385470B2 (en) 2000-12-05 2013-02-26 Google Inc. Coding a signal with a shuffled-Hadamard function
DE10101911B4 (de) * 2001-01-16 2004-03-18 Interessengemeinschaft für Rundfunkschutzrechte GmbH Schutzrechtsverwertung & Co. KG. Signalverarbeitung eines amplituden- und/oder phasenmodulierten Hochfrequenzsignals
EP1557941A4 (en) * 2002-11-01 2012-06-13 Panasonic Corp FILTER CIRCUIT AND RADIO UNIT
JP4387220B2 (ja) * 2004-02-24 2009-12-16 株式会社日立製作所 映像表示方法及びその装置
US20060205379A1 (en) * 2005-03-08 2006-09-14 Intel Corporation Signal reception enhancement apparatus, systems, and methods
JP4740065B2 (ja) * 2006-08-22 2011-08-03 株式会社エヌ・ティ・ティ・ドコモ 基地局、移動局及びパイロットチャネル生成方法
US7889751B2 (en) * 2007-03-06 2011-02-15 Sudhir Aggarwal Low power wireless communication system
JP5420275B2 (ja) * 2009-03-03 2014-02-19 株式会社Ｎｔｔドコモ 符号多重伝送方法、送信装置及び受信装置
US8055212B2 (en) * 2009-05-26 2011-11-08 ST-Erisson SA Transmitter phase shift determination and compensation
US20110141930A1 (en) * 2009-12-11 2011-06-16 Qualcomm Incorporated Baseband compensation for phase discontinuities in radio frequency communication devices
CN108604029B (zh) 2015-12-03 2021-11-26 日产化学工业株式会社 液晶取向剂、液晶取向膜及使用其的液晶表示元件
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
RU2710961C1 (ru) * 2018-11-15 2020-01-14 Федеральное государственное автономное учреждение "Военный инновационный технополис "ЭРА" Министерства обороны Российской Федерации Способ формирования детальных радиолокационных изображений в рлс с синтезированной апертурой антенны
KR20210087089A (ko) 2018-11-27 2021-07-09 엑스콤 랩스 인코퍼레이티드 넌-코히어런트 협력 다중 입출력 통신
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
US12068953B2 (en) 2020-04-15 2024-08-20 Virewirx, Inc. Wireless network multipoint association and diversity
WO2022241436A1 (en) 2021-05-14 2022-11-17 XCOM Labs, Inc. Scrambling identifiers for wireless communication systems

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345417A (en) * 1981-02-17 1982-08-24 Deere & Company Forage harvester with kernel processing means
SU1385247A1 (ru) * 1986-04-22 1988-03-30 Московский Институт Радиотехники,Электроники И Автоматики Многоканальный усилитель мощности
US4688096A (en) * 1986-06-25 1987-08-18 Rca Corporation Demodulation phase error compensation circuitry as for an automatic deghosting system
SU1401558A1 (ru) * 1986-06-12 1988-06-07 Московский Институт Радиотехники,Электроники И Автоматики Многоканальный усилитель мощности
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5066923A (en) * 1990-10-31 1991-11-19 Motorola, Inc. Linear transmitter training method and apparatus
JPH04291829A (ja) * 1991-03-20 1992-10-15 Fujitsu Ltd 歪み補償回路
US5287555A (en) * 1991-07-22 1994-02-15 Motorola, Inc. Power control circuitry for a TDMA radio frequency transmitter
GB2265270B (en) * 1992-03-02 1996-06-12 Motorola Ltd Rf power amplifier with linearization
SE470455B (sv) * 1992-08-24 1994-04-11 Ericsson Telefon Ab L M Anordning för kompensering av fasvridningen i återkopplingsslingan vid en kartesiskt återkopplad effektförstärkare
KR100219709B1 (ko) * 1994-03-15 1999-09-01 윤종용 디지탈무선통신장치에있어서송수신신호처리회로
US5561395A (en) * 1995-01-27 1996-10-01 Motorola, Inc. Method and apparatus for self-adjusting a multistage radio frequency power amplifier
JPH08288928A (ja) * 1995-04-14 1996-11-01 Toshiba Corp スペクトラム拡散通信装置
GB2300545B (en) * 1995-05-03 1999-10-27 Motorola Ltd A method for processing signals
US5799034A (en) * 1995-12-06 1998-08-25 Rockwell International Corporation Frequency acquisition method for direct sequence spread spectrum systems
JPH1022756A (ja) * 1996-07-04 1998-01-23 Mitsubishi Electric Corp 無線送信機およびその送信制御方法
US5770971A (en) * 1996-07-26 1998-06-23 Northern Telecom Limited Distortion compensation control for a power amplifier
JP3311951B2 (ja) * 1996-12-20 2002-08-05 富士通株式会社 符号多重送信装置
US5880633A (en) * 1997-05-08 1999-03-09 Motorola, Inc. High efficiency power amplifier
US5933767A (en) * 1997-09-15 1999-08-03 Motorola, Inc. Apparatus and method for tuning the gain of a transmitter utilizing cartesian feedback
JPH11215198A (ja) * 1998-01-27 1999-08-06 Matsushita Electric Ind Co Ltd プリディストーション歪補償機能付送信装置及び送信装置におけるプリディストーション歪補償方法
JP3570898B2 (ja) * 1998-08-24 2004-09-29 日本電気株式会社 プレディストーション回路
US6535562B1 (en) * 1999-11-30 2003-03-18 Qualcomm Inc. Method and apparatus for rotating the phase of a complex signal

Also Published As

Publication number Publication date
KR20070119093A (ko) 2007-12-18
EP1212878B1 (en) 2008-03-05
CN101202731B (zh) 2011-07-27
UA67861C2 (uk) 2004-07-15
IL148367A0 (en) 2002-09-12
JP2003509967A (ja) 2003-03-11
US7106782B2 (en) 2006-09-12
AU776175B2 (en) 2004-09-02
DE60038241T2 (de) 2009-04-23
HK1049936B (zh) 2008-06-27
TW498664B (en) 2002-08-11
KR100808426B1 (ko) 2008-03-03
ATE388563T1 (de) 2008-03-15
BR0014022A (pt) 2002-07-02
MXPA02002806A (es) 2002-10-23
RU2275749C2 (ru) 2006-04-27
US20030123526A1 (en) 2003-07-03
DE60038241D1 (de) 2008-04-17
CN101202731A (zh) 2008-06-18
CA2386647A1 (en) 2001-03-22
CN1390414A (zh) 2003-01-08
AU7495200A (en) 2001-04-17
NO20021311D0 (no) 2002-03-15
HK1049936A1 (zh) 2003-05-30
WO2001020866A1 (en) 2001-03-22
JP4680458B2 (ja) 2011-05-11
EP1212878A1 (en) 2002-06-12
CN100366035C (zh) 2008-01-30
KR20030026918A (ko) 2003-04-03
IL148367A (en) 2007-06-17
KR100869456B1 (ko) 2008-11-19

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