DE60021739T2 - Kurzcode-detektionsverfahren - Google Patents

Kurzcode-detektionsverfahren Download PDF

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Publication number
DE60021739T2
DE60021739T2 DE60021739T DE60021739T DE60021739T2 DE 60021739 T2 DE60021739 T2 DE 60021739T2 DE 60021739 T DE60021739 T DE 60021739T DE 60021739 T DE60021739 T DE 60021739T DE 60021739 T2 DE60021739 T2 DE 60021739T2
Authority
DE
Germany
Prior art keywords
likelihood
short
short code
code
quotient
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
DE60021739T
Other languages
German (de)
English (en)
Other versions
DE60021739D1 (de
Inventor
M. Fatih OZLUTURK
M. Alexander JACQUES
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
InterDigital Technology 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 Technology Corp filed Critical InterDigital Technology Corp
Publication of DE60021739D1 publication Critical patent/DE60021739D1/de
Application granted granted Critical
Publication of DE60021739T2 publication Critical patent/DE60021739T2/de
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
    • H04B1/7097—Interference-related aspects
    • H04B1/71—Interference-related aspects the interference being narrowband 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/70735—Code identification
    • 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
    • H04B1/71—Interference-related aspects the interference being narrowband interference
    • H04B1/7101—Interference-related aspects the interference being narrowband interference with estimation filters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
DE60021739T 1999-10-08 2000-09-21 Kurzcode-detektionsverfahren Expired - Lifetime DE60021739T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/415,321 US6414951B1 (en) 1999-10-08 1999-10-08 Method for detecting short codes in CDMA systems
US415321 1999-10-08
PCT/US2000/025772 WO2001028122A1 (en) 1999-10-08 2000-09-21 Short code detection method

Publications (2)

Publication Number Publication Date
DE60021739D1 DE60021739D1 (de) 2005-09-08
DE60021739T2 true DE60021739T2 (de) 2006-04-20

Family

ID=23645234

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60021739T Expired - Lifetime DE60021739T2 (de) 1999-10-08 2000-09-21 Kurzcode-detektionsverfahren

Country Status (12)

Country Link
US (7) US6414951B1 (https=)
EP (2) EP1219038B1 (https=)
JP (2) JP3948554B2 (https=)
AR (1) AR025982A1 (https=)
AT (1) ATE301347T1 (https=)
AU (1) AU7984000A (https=)
DE (1) DE60021739T2 (https=)
DK (1) DK1219038T3 (https=)
ES (1) ES2246901T3 (https=)
HK (1) HK1048399B (https=)
TW (1) TW503634B (https=)
WO (1) WO2001028122A1 (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6414951B1 (en) * 1999-10-08 2002-07-02 Interdigital Technology Corporation Method for detecting short codes in CDMA systems
US6795423B1 (en) * 2000-02-04 2004-09-21 Interdigital Technology Corporation System for continuous wave rejection
FI20000273A7 (fi) * 2000-02-09 2001-08-10 Nokia Corp Menetelmä suorittaa koodisynkronointi ja vastaanotin
TW561747B (en) * 2000-11-21 2003-11-11 Ibm Costs in data networks
US7868874B2 (en) 2005-11-15 2011-01-11 Synaptics Incorporated Methods and systems for detecting a position-based attribute of an object using digital codes
US8730204B2 (en) 2010-09-16 2014-05-20 Synaptics Incorporated Systems and methods for signaling and interference detection in sensor devices
US8743080B2 (en) 2011-06-27 2014-06-03 Synaptics Incorporated System and method for signaling in sensor devices
US8766949B2 (en) 2011-12-22 2014-07-01 Synaptics Incorporated Systems and methods for determining user input using simultaneous transmission from multiple electrodes
US9063608B2 (en) 2012-06-14 2015-06-23 Synaptics Incorporated Systems and methods for sensor devices having a non-commensurate number of transmitter electrodes
US20150003500A1 (en) * 2013-06-27 2015-01-01 Dawson W. Kesling Baseband Cancellation of Direct Sequence Spread Spectrum Platform Radio Interference
US9176633B2 (en) 2014-03-31 2015-11-03 Synaptics Incorporated Sensor device and method for estimating noise in a capacitive sensing device
US10025428B2 (en) 2015-11-19 2018-07-17 Synaptics Incorporated Method and apparatus for improving capacitive sensing detection
US10019122B2 (en) 2016-03-31 2018-07-10 Synaptics Incorporated Capacitive sensing using non-integer excitation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
CN1065092C (zh) 1994-02-09 2001-04-25 Ntt移动通信网株式会社 码分多址移动通信的方法和系统
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5841768A (en) * 1996-06-27 1998-11-24 Interdigital Technology Corporation Method of controlling initial power ramp-up in CDMA systems by using short codes
US5642377A (en) 1995-07-25 1997-06-24 Nokia Mobile Phones, Ltd. Serial search acquisition system with adaptive threshold and optimal decision for spread spectrum systems
DK1814237T3 (da) 1996-06-27 2015-02-09 Interdigital Tech Corp Indretning og fremgangsmåde til kommunikation mellem basestation og abonnentenhed i et CDMA-kommunikationssystem
US6263010B1 (en) * 1997-08-04 2001-07-17 Kabushiki Kaisha Toshiba Spread spectrum communication apparatus
US5974079A (en) * 1998-01-26 1999-10-26 Motorola, Inc. Method and apparatus for encoding rate determination in a communication system
US6205168B1 (en) * 1998-11-12 2001-03-20 Sharp Laboratories Of America, Inc. Sequential detection system and method with adaptive bias
US6414951B1 (en) * 1999-10-08 2002-07-02 Interdigital Technology Corporation Method for detecting short codes in CDMA systems

Also Published As

Publication number Publication date
EP1601114A2 (en) 2005-11-30
US20040233864A1 (en) 2004-11-25
WO2001028122A1 (en) 2001-04-19
EP1219038B1 (en) 2005-08-03
US7106720B2 (en) 2006-09-12
AR025982A1 (es) 2002-12-26
US20020181433A1 (en) 2002-12-05
US6744756B2 (en) 2004-06-01
EP1219038A1 (en) 2002-07-03
JP2003511960A (ja) 2003-03-25
JP3948554B2 (ja) 2007-07-25
US7889664B2 (en) 2011-02-15
HK1048399B (en) 2006-03-24
JP4213189B2 (ja) 2009-01-21
DE60021739D1 (de) 2005-09-08
US6744755B2 (en) 2004-06-01
DK1219038T3 (da) 2005-11-21
HK1048399A1 (en) 2003-03-28
US6741584B2 (en) 2004-05-25
AU7984000A (en) 2001-04-23
JP2007129775A (ja) 2007-05-24
ES2246901T3 (es) 2006-03-01
US20020163927A1 (en) 2002-11-07
TW503634B (en) 2002-09-21
US20020163903A1 (en) 2002-11-07
US6414951B1 (en) 2002-07-02
US20070008874A1 (en) 2007-01-11
US6751208B2 (en) 2004-06-15
EP1601114A3 (en) 2008-01-23
ATE301347T1 (de) 2005-08-15
US20020176395A1 (en) 2002-11-28

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