CA2404917A1 - Cdma system which uses pre-rotation before transmission - Google Patents

Cdma system which uses pre-rotation before transmission Download PDF

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Publication number
CA2404917A1
CA2404917A1 CA002404917A CA2404917A CA2404917A1 CA 2404917 A1 CA2404917 A1 CA 2404917A1 CA 002404917 A CA002404917 A CA 002404917A CA 2404917 A CA2404917 A CA 2404917A CA 2404917 A1 CA2404917 A1 CA 2404917A1
Authority
CA
Canada
Prior art keywords
cdma system
before transmission
rotation before
uses pre
frequency error
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.)
Granted
Application number
CA002404917A
Other languages
French (fr)
Other versions
CA2404917C (en
Inventor
John D. Kaewell
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.)
InterDigital Technology Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002652083A priority Critical patent/CA2652083A1/en
Publication of CA2404917A1 publication Critical patent/CA2404917A1/en
Application granted granted Critical
Publication of CA2404917C publication Critical patent/CA2404917C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Abstract

A digital spread spectrum communication system calculates phase and frequency error (119) on a received signal from a communicating entity during a wireless communication and pre-corrects a signal for phase and frequency error prior to trans-mission to that entity. Moreover, a carrier offset correction (149) is performed, either at a chip, or at a symbol level.
CA002404917A 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission Expired - Lifetime CA2404917C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002652083A CA2652083A1 (en) 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US19267000P 2000-03-28 2000-03-28
US60/192,670 2000-03-28
PCT/US2001/009968 WO2001073968A1 (en) 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002652083A Division CA2652083A1 (en) 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission

Publications (2)

Publication Number Publication Date
CA2404917A1 true CA2404917A1 (en) 2001-10-04
CA2404917C CA2404917C (en) 2009-03-24

Family

ID=22710585

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002404917A Expired - Lifetime CA2404917C (en) 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission
CA002652083A Abandoned CA2652083A1 (en) 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002652083A Abandoned CA2652083A1 (en) 2000-03-28 2001-03-28 Cdma system which uses pre-rotation before transmission

Country Status (17)

Country Link
US (10) US6831941B2 (en)
EP (5) EP2230773A1 (en)
JP (6) JP4094852B2 (en)
KR (9) KR100994389B1 (en)
CN (2) CN1237729C (en)
AT (3) ATE465556T1 (en)
AU (4) AU2001249558B2 (en)
BR (1) BR0109904A (en)
CA (2) CA2404917C (en)
DE (3) DE60108855T2 (en)
DK (3) DK1530302T3 (en)
ES (3) ES2300884T3 (en)
HK (1) HK1057429A1 (en)
IL (3) IL151905A0 (en)
MX (1) MXPA02009345A (en)
NO (2) NO326188B1 (en)
WO (1) WO2001073968A1 (en)

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Also Published As

Publication number Publication date
US20050105598A1 (en) 2005-05-19
US20140334528A1 (en) 2014-11-13
EP1530302A3 (en) 2005-08-03
DE60141923D1 (en) 2010-06-02
EP1530302B1 (en) 2008-01-23
KR20080031507A (en) 2008-04-08
ES2300884T3 (en) 2008-06-16
ATE289135T1 (en) 2005-02-15
WO2001073968A8 (en) 2001-11-29
ES2345337T3 (en) 2010-09-21
KR20090010239A (en) 2009-01-29
MXPA02009345A (en) 2003-09-22
US6587499B2 (en) 2003-07-01
JP2015019411A (en) 2015-01-29
NO20024618L (en) 2002-11-05
EP1530302A2 (en) 2005-05-11
KR20070103084A (en) 2007-10-22
IL203410A0 (en) 2011-08-01
KR100927674B1 (en) 2009-11-20
US6690711B2 (en) 2004-02-10
US6606345B2 (en) 2003-08-12
JP2011176877A (en) 2011-09-08
AU2001249558B2 (en) 2005-12-01
AU2010200332B2 (en) 2014-04-03
KR100490717B1 (en) 2005-05-24
CN1237729C (en) 2006-01-18
KR100899825B1 (en) 2009-05-27
EP1530301B1 (en) 2010-04-21
US20020080857A1 (en) 2002-06-27
AU2008200938A1 (en) 2008-03-20
AU4955801A (en) 2001-10-08
EP1530301A2 (en) 2005-05-11
EP1279238B1 (en) 2005-02-09
EP1279238A1 (en) 2003-01-29
KR100959321B1 (en) 2010-05-26
US8798116B2 (en) 2014-08-05
NO20084108L (en) 2002-11-05
KR100994389B1 (en) 2010-11-16
JP2003529274A (en) 2003-09-30
ATE385076T1 (en) 2008-02-15
US20020071499A1 (en) 2002-06-13
DK1530301T3 (en) 2010-08-09
US6850556B2 (en) 2005-02-01
DK1530302T3 (en) 2008-04-07
IL151905A0 (en) 2003-04-10
JP5481427B2 (en) 2014-04-23
JP5481531B2 (en) 2014-04-23
US8488650B2 (en) 2013-07-16
US6831941B2 (en) 2004-12-14
WO2001073968A1 (en) 2001-10-04
EP1901441A1 (en) 2008-03-19
KR20100058636A (en) 2010-06-03
US20010040914A1 (en) 2001-11-15
BR0109904A (en) 2004-03-30
DK1279238T3 (en) 2005-05-30
JP2012235504A (en) 2012-11-29
KR20050006290A (en) 2005-01-15
KR20090064465A (en) 2009-06-18
CA2652083A1 (en) 2001-10-04
DE60132643D1 (en) 2008-03-13
JP2013192242A (en) 2013-09-26
NO20024618D0 (en) 2002-09-26
KR100772475B1 (en) 2007-11-02
KR100811026B1 (en) 2008-03-11
CN1430818A (en) 2003-07-16
DE60108855T2 (en) 2006-01-19
KR20090123970A (en) 2009-12-02
AU2010200332A1 (en) 2010-02-18
DE60132643T2 (en) 2009-01-08
US20020071500A1 (en) 2002-06-13
US7519103B2 (en) 2009-04-14
ES2236210T3 (en) 2005-07-16
DE60108855D1 (en) 2005-03-17
US20020075948A1 (en) 2002-06-20
NO326188B1 (en) 2008-10-13
US9100250B2 (en) 2015-08-04
EP1530301A3 (en) 2005-08-10
EP2230773A1 (en) 2010-09-22
JP4782638B2 (en) 2011-09-28
CN1707991A (en) 2005-12-14
AU2008200938B2 (en) 2010-02-18
US20090196330A1 (en) 2009-08-06
CN1707991B (en) 2013-10-30
JP4094852B2 (en) 2008-06-04
US6633602B2 (en) 2003-10-14
HK1057429A1 (en) 2004-04-02
US20130301684A1 (en) 2013-11-14
ATE465556T1 (en) 2010-05-15
US20040136443A1 (en) 2004-07-15
KR20020084263A (en) 2002-11-04
CA2404917C (en) 2009-03-24
JP2006304374A (en) 2006-11-02
KR20060035813A (en) 2006-04-26
IL151905A (en) 2009-05-04

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