BR0109904A - Sistema de cdma que utiliza rotação prévia antes da transmissão - Google Patents

Sistema de cdma que utiliza rotação prévia antes da transmissão

Info

Publication number
BR0109904A
BR0109904A BR0109904-3A BR0109904A BR0109904A BR 0109904 A BR0109904 A BR 0109904A BR 0109904 A BR0109904 A BR 0109904A BR 0109904 A BR0109904 A BR 0109904A
Authority
BR
Brazil
Prior art keywords
cdma system
before transmission
rotation before
uses pre
signal
Prior art date
Application number
BR0109904-3A
Other languages
English (en)
Inventor
John D Kaewell
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of BR0109904A publication Critical patent/BR0109904A/pt

Links

Classifications

    • 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
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter 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
    • H04B1/62—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 for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • 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
    • 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
    • H04B1/7097—Interference-related aspects
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • H04B2001/70724—Spread spectrum techniques using direct sequence modulation featuring pilot assisted reception
    • 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
    • H04B2201/696—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to Dowlink
    • 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
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0018—Arrangements at the transmitter end
    • H04L2027/0022—Arrangements at the transmitter end using the carrier of the associated receiver of a transceiver

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Air Conditioning Control Device (AREA)
  • Small-Scale Networks (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transmitters (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Studio Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmission Devices (AREA)
  • Valve Device For Special Equipments (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

"SISTEMA DE CDMA QUE UTILIZA ROTAçãO PRéVIA ANTES DA TRANSMISSãO". Refere-se a um sistema de comunicações de espectro de difusão digital que calcula erros de freq³ência e de fase sobre um sinal recebido de uma entidade de comunicação durante uma comunicação sem fio e corrige previamente os erros de freq³ência e de fase de um sinal antes da transmissão para aquela entidade.
BR0109904-3A 2000-03-28 2001-03-28 Sistema de cdma que utiliza rotação prévia antes da transmissão BR0109904A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19267000P 2000-03-28 2000-03-28
PCT/US2001/009968 WO2001073968A1 (en) 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission

Publications (1)

Publication Number Publication Date
BR0109904A true BR0109904A (pt) 2004-03-30

Family

ID=22710585

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0109904-3A BR0109904A (pt) 2000-03-28 2001-03-28 Sistema de cdma que utiliza rotação prévia antes da transmissão

Country Status (17)

Country Link
US (10) US6831941B2 (pt)
EP (5) EP1901441A1 (pt)
JP (6) JP4094852B2 (pt)
KR (9) KR20090123970A (pt)
CN (2) CN1237729C (pt)
AT (3) ATE465556T1 (pt)
AU (4) AU4955801A (pt)
BR (1) BR0109904A (pt)
CA (2) CA2404917C (pt)
DE (3) DE60132643T2 (pt)
DK (3) DK1530301T3 (pt)
ES (3) ES2236210T3 (pt)
HK (1) HK1057429A1 (pt)
IL (3) IL151905A0 (pt)
MX (1) MXPA02009345A (pt)
NO (2) NO326188B1 (pt)
WO (1) WO2001073968A1 (pt)

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Also Published As

Publication number Publication date
US6690711B2 (en) 2004-02-10
CA2404917C (en) 2009-03-24
KR20020084263A (ko) 2002-11-04
CN1237729C (zh) 2006-01-18
JP5481531B2 (ja) 2014-04-23
DE60141923D1 (de) 2010-06-02
DE60108855D1 (de) 2005-03-17
DK1279238T3 (da) 2005-05-30
IL151905A0 (en) 2003-04-10
AU2010200332B2 (en) 2014-04-03
KR20080031507A (ko) 2008-04-08
ATE385076T1 (de) 2008-02-15
AU4955801A (en) 2001-10-08
JP5481427B2 (ja) 2014-04-23
US20020071500A1 (en) 2002-06-13
US6850556B2 (en) 2005-02-01
IL151905A (en) 2009-05-04
EP1279238A1 (en) 2003-01-29
KR100927674B1 (ko) 2009-11-20
KR100811026B1 (ko) 2008-03-11
KR20070103084A (ko) 2007-10-22
WO2001073968A8 (en) 2001-11-29
US7519103B2 (en) 2009-04-14
JP2012235504A (ja) 2012-11-29
KR20090064465A (ko) 2009-06-18
EP2230773A1 (en) 2010-09-22
US20140334528A1 (en) 2014-11-13
KR20090010239A (ko) 2009-01-29
JP2011176877A (ja) 2011-09-08
MXPA02009345A (es) 2003-09-22
JP2006304374A (ja) 2006-11-02
CA2404917A1 (en) 2001-10-04
EP1901441A1 (en) 2008-03-19
ATE289135T1 (de) 2005-02-15
JP4094852B2 (ja) 2008-06-04
KR100959321B1 (ko) 2010-05-26
US8798116B2 (en) 2014-08-05
DE60132643D1 (de) 2008-03-13
US9100250B2 (en) 2015-08-04
WO2001073968A1 (en) 2001-10-04
JP2015019411A (ja) 2015-01-29
US6587499B2 (en) 2003-07-01
JP4782638B2 (ja) 2011-09-28
US20020080857A1 (en) 2002-06-27
US20020075948A1 (en) 2002-06-20
CN1707991A (zh) 2005-12-14
US20020071499A1 (en) 2002-06-13
DK1530301T3 (da) 2010-08-09
KR100899825B1 (ko) 2009-05-27
JP2003529274A (ja) 2003-09-30
KR20100058636A (ko) 2010-06-03
DE60132643T2 (de) 2009-01-08
ES2300884T3 (es) 2008-06-16
AU2001249558B2 (en) 2005-12-01
NO20024618D0 (no) 2002-09-26
KR100994389B1 (ko) 2010-11-16
US20010040914A1 (en) 2001-11-15
KR20050006290A (ko) 2005-01-15
EP1530301A2 (en) 2005-05-11
JP2013192242A (ja) 2013-09-26
ES2345337T3 (es) 2010-09-21
US20050105598A1 (en) 2005-05-19
ES2236210T3 (es) 2005-07-16
US6606345B2 (en) 2003-08-12
HK1057429A1 (en) 2004-04-02
IL203410A0 (en) 2011-08-01
US20130301684A1 (en) 2013-11-14
EP1530301A3 (en) 2005-08-10
CA2652083A1 (en) 2001-10-04
CN1430818A (zh) 2003-07-16
KR20090123970A (ko) 2009-12-02
NO20084108L (no) 2002-11-05
CN1707991B (zh) 2013-10-30
KR20060035813A (ko) 2006-04-26
US20090196330A1 (en) 2009-08-06
AU2010200332A1 (en) 2010-02-18
US8488650B2 (en) 2013-07-16
AU2008200938A1 (en) 2008-03-20
EP1530301B1 (en) 2010-04-21
NO20024618L (no) 2002-11-05
US20040136443A1 (en) 2004-07-15
DE60108855T2 (de) 2006-01-19
KR100490717B1 (ko) 2005-05-24
NO326188B1 (no) 2008-10-13
ATE465556T1 (de) 2010-05-15
US6633602B2 (en) 2003-10-14
EP1530302A3 (en) 2005-08-03
DK1530302T3 (da) 2008-04-07
KR100772475B1 (ko) 2007-11-02
AU2008200938B2 (en) 2010-02-18
US6831941B2 (en) 2004-12-14
EP1279238B1 (en) 2005-02-09
EP1530302A2 (en) 2005-05-11
EP1530302B1 (en) 2008-01-23

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