AU3434200A - Unsupervised adaptive chip separation filter for cdma terminal - Google Patents

Unsupervised adaptive chip separation filter for cdma terminal

Info

Publication number
AU3434200A
AU3434200A AU34342/00A AU3434200A AU3434200A AU 3434200 A AU3434200 A AU 3434200A AU 34342/00 A AU34342/00 A AU 34342/00A AU 3434200 A AU3434200 A AU 3434200A AU 3434200 A AU3434200 A AU 3434200A
Authority
AU
Australia
Prior art keywords
separation filter
chip separation
cdma terminal
adaptive chip
unsupervised adaptive
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.)
Abandoned
Application number
AU34342/00A
Inventor
Markku Heikkila
Petri Komulainen
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.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
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
Priority claimed from US09/521,439 external-priority patent/US6721293B1/en
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of AU3434200A publication Critical patent/AU3434200A/en
Abandoned 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
    • 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
    • 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
    • H04B1/7103—Interference-related aspects the interference being multiple access 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03401—PSK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
AU34342/00A 1999-03-10 2000-03-10 Unsupervised adaptive chip separation filter for cdma terminal Abandoned AU3434200A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US12360399P 1999-03-10 1999-03-10
US60123603 1999-03-10
US51803100A 2000-03-03 2000-03-03
US09518031 2000-03-03
US09/521,439 US6721293B1 (en) 1999-03-10 2000-03-07 Unsupervised adaptive chip separation filter for CDMA terminal
US09521439 2000-03-07
PCT/FI2000/000192 WO2000054418A1 (en) 1999-03-10 2000-03-10 Unsupervised adaptive chip separation filter for cdma terminal

Publications (1)

Publication Number Publication Date
AU3434200A true AU3434200A (en) 2000-09-28

Family

ID=27382978

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34342/00A Abandoned AU3434200A (en) 1999-03-10 2000-03-10 Unsupervised adaptive chip separation filter for cdma terminal

Country Status (5)

Country Link
EP (1) EP1157474A1 (en)
JP (1) JP2002539666A (en)
CN (1) CN1348632A (en)
AU (1) AU3434200A (en)
WO (1) WO2000054418A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6219344B1 (en) * 1999-04-21 2001-04-17 Infineon Technologies Ag Pilot aided traffic channel estimation for CDMA cellular systems
WO2002073840A1 (en) * 2001-03-12 2002-09-19 Conexant Systems, Inc. Method and apparatus for spread spectrum radio signal recovery in wideband spread spectrum communication systems
WO2002073937A2 (en) 2001-03-14 2002-09-19 Mercury Computer Systems, Inc. Wireless communications methods and systems for long-code and other spread spectrum waveform processing
US7362830B2 (en) * 2002-12-31 2008-04-22 Lg Electronics Inc. Smart antenna system and method
US7257377B2 (en) 2003-02-18 2007-08-14 Qualcomm, Incorporated Systems and methods for improving channel estimation
US20040161057A1 (en) * 2003-02-18 2004-08-19 Malladi Durga Prasad Communication receiver with a rake-based adaptive equalizer
US7116271B2 (en) * 2004-09-23 2006-10-03 Interdigital Technology Corporation Blind signal separation using spreading codes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2885612B2 (en) * 1993-06-25 1999-04-26 日本電気株式会社 Interference wave canceller
US5577025A (en) * 1995-06-30 1996-11-19 Qualcomm Incorporated Signal acquisition in a multi-user communication system using multiple walsh channels

Also Published As

Publication number Publication date
EP1157474A1 (en) 2001-11-28
WO2000054418A1 (en) 2000-09-14
CN1348632A (en) 2002-05-08
JP2002539666A (en) 2002-11-19

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase