HK1048399B - Short code detection method - Google Patents

Short code detection method Download PDF

Info

Publication number
HK1048399B
HK1048399B HK03100009.6A HK03100009A HK1048399B HK 1048399 B HK1048399 B HK 1048399B HK 03100009 A HK03100009 A HK 03100009A HK 1048399 B HK1048399 B HK 1048399B
Authority
HK
Hong Kong
Prior art keywords
short code
likelihood ratio
code
short
background noise
Prior art date
Application number
HK03100009.6A
Other languages
German (de)
English (en)
French (fr)
Chinese (zh)
Other versions
HK1048399A1 (en
Inventor
Fatih M. Ozluturk
Alexander M. Jacques
Original Assignee
交互数字技术公司
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 交互数字技术公司 filed Critical 交互数字技术公司
Publication of HK1048399A1 publication Critical patent/HK1048399A1/en
Publication of HK1048399B publication Critical patent/HK1048399B/en

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)
HK03100009.6A 1999-10-08 2000-09-21 Short code detection method HK1048399B (en)

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
US09/415,321 1999-10-08
PCT/US2000/025772 WO2001028122A1 (en) 1999-10-08 2000-09-21 Short code detection method

Publications (2)

Publication Number Publication Date
HK1048399A1 HK1048399A1 (en) 2003-03-28
HK1048399B true HK1048399B (en) 2006-03-24

Family

ID=23645234

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03100009.6A HK1048399B (en) 1999-10-08 2000-09-21 Short code detection method

Country Status (12)

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

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
US8847899B2 (en) 2010-09-16 2014-09-30 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
CN1163009C (zh) 1994-02-09 2004-08-18 Ntt移动通信网株式会社 码分多址移动通信的方法和系统
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
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
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
ATE218773T1 (de) 1996-06-27 2002-06-15 Interdigital Tech Corp Ein verfahren und netzwerk zum kontrollieren des hochfahrens der anfangssendeleistung in einem cdma system unter verwendung kurzer kodes
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
US6741584B2 (en) 2004-05-25
US6751208B2 (en) 2004-06-15
ATE301347T1 (de) 2005-08-15
US20070008874A1 (en) 2007-01-11
AR025982A1 (es) 2002-12-26
EP1601114A3 (en) 2008-01-23
US20020176395A1 (en) 2002-11-28
US7106720B2 (en) 2006-09-12
AU7984000A (en) 2001-04-23
ES2246901T3 (es) 2006-03-01
JP4213189B2 (ja) 2009-01-21
EP1219038B1 (en) 2005-08-03
US20020163927A1 (en) 2002-11-07
DE60021739D1 (de) 2005-09-08
TW503634B (en) 2002-09-21
US6744756B2 (en) 2004-06-01
WO2001028122A1 (en) 2001-04-19
DE60021739T2 (de) 2006-04-20
JP2003511960A (ja) 2003-03-25
US20040233864A1 (en) 2004-11-25
US7889664B2 (en) 2011-02-15
US6744755B2 (en) 2004-06-01
US20020163903A1 (en) 2002-11-07
JP3948554B2 (ja) 2007-07-25
JP2007129775A (ja) 2007-05-24
US20020181433A1 (en) 2002-12-05
HK1048399A1 (en) 2003-03-28
DK1219038T3 (da) 2005-11-21
US6414951B1 (en) 2002-07-02
EP1219038A1 (en) 2002-07-03

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20170921