DE69835349D1 - Selbstsynchronisierende entzerrungstechniken und systeme - Google Patents

Selbstsynchronisierende entzerrungstechniken und systeme

Info

Publication number
DE69835349D1
DE69835349D1 DE69835349T DE69835349T DE69835349D1 DE 69835349 D1 DE69835349 D1 DE 69835349D1 DE 69835349 T DE69835349 T DE 69835349T DE 69835349 T DE69835349 T DE 69835349T DE 69835349 D1 DE69835349 D1 DE 69835349D1
Authority
DE
Germany
Prior art keywords
synchronizing
self
systems
detergent
techniques
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
DE69835349T
Other languages
English (en)
Other versions
DE69835349T2 (de
Inventor
Soeren Andersson
Per Pelin
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69835349D1 publication Critical patent/DE69835349D1/de
Application granted granted Critical
Publication of DE69835349T2 publication Critical patent/DE69835349T2/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
    • H04B1/711—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
    • 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
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/0328—Arrangements for operating in conjunction with other apparatus with interference cancellation circuitry
    • 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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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
    • H04B2201/709727—GRAKE type RAKE receivers
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE69835349T 1997-03-27 1998-03-20 Selbstsynchronisierende entzerrungstechniken und systeme Expired - Lifetime DE69835349T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/827,169 US5937014A (en) 1997-03-27 1997-03-27 Self-synchronizing equalization techniques and systems
US827169 1997-03-27
PCT/SE1998/000518 WO1998044655A2 (en) 1997-03-27 1998-03-20 Self-synchronizing equalization techniques and systems

Publications (2)

Publication Number Publication Date
DE69835349D1 true DE69835349D1 (de) 2006-09-07
DE69835349T2 DE69835349T2 (de) 2007-08-23

Family

ID=25248487

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69835349T Expired - Lifetime DE69835349T2 (de) 1997-03-27 1998-03-20 Selbstsynchronisierende entzerrungstechniken und systeme

Country Status (9)

Country Link
US (2) US5937014A (de)
EP (1) EP0970569B1 (de)
JP (1) JP4409634B2 (de)
CN (2) CN1316754C (de)
AU (1) AU6753798A (de)
CA (1) CA2285431C (de)
DE (1) DE69835349T2 (de)
TW (1) TW386325B (de)
WO (1) WO1998044655A2 (de)

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US6470044B1 (en) * 1999-01-15 2002-10-22 Sharp Laboratories Of America, Inc. Computationally parsimonious forward link receiver for DS-CDMA systems and method for same
JP3149868B2 (ja) * 1999-02-24 2001-03-26 日本電気株式会社 Ｃｄｍａ受信装置の受信パス・サーチ方法およびサーチャー回路
US7027537B1 (en) * 1999-03-05 2006-04-11 The Board Of Trustees Of The Leland Stanford Junior University Iterative multi-user detection
US6687317B1 (en) 1999-04-16 2004-02-03 Koninklijke Philips Electronics N.V. Method for correlation directed echo cancellation and channel equalization for the digital transmission link in vestigial side band amplitude modulation
DE19920819C1 (de) * 1999-05-06 2000-10-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Schätzung von gedächtnisbehafteten Übertragungskanälen
US6765894B1 (en) 1999-07-05 2004-07-20 Matsushita Electric Industrial Co, Ltd. Communication terminal apparatus and base station apparatus
US6628706B1 (en) * 1999-12-06 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for transforming a channel estimate
US7148898B1 (en) 2000-03-29 2006-12-12 Sourceprose Corporation System and method for synchronizing raster and vector map images
US7038681B2 (en) * 2000-03-29 2006-05-02 Sourceprose Corporation System and method for georeferencing maps
US20010033292A1 (en) * 2000-03-29 2001-10-25 Scott Dan Martin System and method for georeferencing digital raster maps
EP1150441B1 (de) * 2000-04-25 2014-03-26 Alcatel Lucent Verfahren und Empfänger zur Kombinierung von mindestens zwei empfangenen Signalen eines Telekommunikationssystems
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US6507604B1 (en) * 2000-08-31 2003-01-14 Wen-Yi Kuo Rake receiver for CDMA wireless communications
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US6975672B2 (en) * 2001-01-08 2005-12-13 Ericsson Inc. Apparatus and methods for intersymbol interference compensation in spread spectrum communications
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US6483459B1 (en) * 2001-04-05 2002-11-19 Neoreach, Inc. Direction of arrival angle tracking algorithm for smart antennas
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US7440489B2 (en) 2001-08-07 2008-10-21 Ericsson Inc. Method and apparatus for selective demodulation and decoding of communications signals
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Also Published As

Publication number Publication date
TW386325B (en) 2000-04-01
CN1516353A (zh) 2004-07-28
JP2001517399A (ja) 2001-10-02
CN1257626A (zh) 2000-06-21
EP0970569B1 (de) 2006-07-26
WO1998044655A3 (en) 1999-03-11
CN1211945C (zh) 2005-07-20
AU6753798A (en) 1998-10-22
US6148023A (en) 2000-11-14
CA2285431C (en) 2006-04-11
JP4409634B2 (ja) 2010-02-03
DE69835349T2 (de) 2007-08-23
WO1998044655A2 (en) 1998-10-08
US5937014A (en) 1999-08-10
EP0970569A2 (de) 2000-01-12
CA2285431A1 (en) 1998-10-08
CN1316754C (zh) 2007-05-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition