[go: up one dir, main page]

DE60016971D1 - Systeme zur selektiven gemeinsamen demodulierung und verfahren für den empfang eines signals in der anwesenheit von rauschen und störsignalen - Google Patents

Systeme zur selektiven gemeinsamen demodulierung und verfahren für den empfang eines signals in der anwesenheit von rauschen und störsignalen

Info

Publication number
DE60016971D1
DE60016971D1 DE60016971T DE60016971T DE60016971D1 DE 60016971 D1 DE60016971 D1 DE 60016971D1 DE 60016971 T DE60016971 T DE 60016971T DE 60016971 T DE60016971 T DE 60016971T DE 60016971 D1 DE60016971 D1 DE 60016971D1
Authority
DE
Germany
Prior art keywords
signal
noise
interference
power
demodulation
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
DE60016971T
Other languages
English (en)
Other versions
DE60016971T2 (de
Inventor
J Molnar
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Publication of DE60016971D1 publication Critical patent/DE60016971D1/de
Application granted granted Critical
Publication of DE60016971T2 publication Critical patent/DE60016971T2/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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • 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
    • H04B1/7107—Subtractive interference cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Radio Transmission System (AREA)
DE60016971T 1999-12-17 2000-10-26 Systeme zur selektiven gemeinsamen demodulierung und verfahren für den empfang eines signals in der anwesenheit von rauschen und störsignalen Expired - Lifetime DE60016971T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/464,830 US7016436B1 (en) 1999-12-17 1999-12-17 Selective joint demodulation systems and methods for receiving a signal in the presence of noise and interference
US464830 1999-12-17
PCT/US2000/029511 WO2001045289A1 (en) 1999-12-17 2000-10-26 Selective joint demodulation systems and methods for receiving a signal in the presence of noise and interference

Publications (2)

Publication Number Publication Date
DE60016971D1 true DE60016971D1 (de) 2005-01-27
DE60016971T2 DE60016971T2 (de) 2005-12-08

Family

ID=23845410

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60016971T Expired - Lifetime DE60016971T2 (de) 1999-12-17 2000-10-26 Systeme zur selektiven gemeinsamen demodulierung und verfahren für den empfang eines signals in der anwesenheit von rauschen und störsignalen

Country Status (7)

Country Link
US (1) US7016436B1 (de)
EP (1) EP1238469B1 (de)
JP (1) JP4541626B2 (de)
AT (1) ATE285637T1 (de)
AU (1) AU1233501A (de)
DE (1) DE60016971T2 (de)
WO (1) WO2001045289A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6278726B1 (en) 1999-09-10 2001-08-21 Interdigital Technology Corporation Interference cancellation in a spread spectrum communication system
US6115406A (en) 1999-09-10 2000-09-05 Interdigital Technology Corporation Transmission using an antenna array in a CDMA communication system
US6842476B2 (en) * 2001-02-09 2005-01-11 Telefonaktiebolaget Lm Ericsson (Publ) Co-channel interference canceller
US7035359B2 (en) 2001-10-11 2006-04-25 Telefonaktiebolaget L.M. Ericsson Methods and apparatus for demodulation of a signal in a signal slot subject to a discontinuous interference signal
US6714607B2 (en) 2001-12-20 2004-03-30 Sbc Technology Resources, Inc. Joint demodulation using a viterbi equalizer having an adaptive total number of states
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US7773950B2 (en) * 2004-06-16 2010-08-10 Telefonaktiebolaget Lm Ericsson (Publ) Benign interference suppression for received signal quality estimation
JP4777117B2 (ja) * 2006-04-05 2011-09-21 シャープ株式会社 適応変調制御装置、通信装置、及び、適応変調制御方法
US8576959B2 (en) * 2008-04-16 2013-11-05 Nec Laboratories America, Inc. Receiver with prefiltering for discrete fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) based systems
US20090304122A1 (en) * 2008-06-04 2009-12-10 Navid Fatemi-Ghomi Receiver architecture
US8064531B2 (en) 2009-11-04 2011-11-22 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for interferer parameter estimation using multiple receiver arbitration
US8983389B2 (en) * 2010-01-20 2015-03-17 Qualcomm Incorporated Method and apparatus for switching between single user detection and multi user detection
US8842791B2 (en) * 2011-08-13 2014-09-23 Posedge Inc. Synchronization of a receiver to a desired signal
US9154983B2 (en) 2013-01-14 2015-10-06 Qualcomm Incorporated Systems and methods for detecting or signaling the presence of bursty interference on wireless networks

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214391A (en) * 1989-12-06 1993-05-25 Kabushiki Kaisha Toshiba Demodulation apparatus having multipath detector for selecting a first or second demodulator
US5222106A (en) * 1990-02-07 1993-06-22 Kokusai Denshin Denwa Kabushiki Kaisha Interference detection and reduction
US5506861A (en) 1993-11-22 1996-04-09 Ericsson Ge Mobile Comminications Inc. System and method for joint demodulation of CDMA signals
GB2286506B (en) 1994-02-10 1997-12-10 Roke Manor Research Improvements in or relating to co-channel interferance suppression systems
FI102797B1 (fi) * 1994-10-07 1999-02-15 Nokia Telecommunications Oy Signaalin ilmaisumenetelmä TDMA-matkaviestinjärjestelmän vastaanottimessa sekä menetelmän toteuttava vastaanotin
FI945108L (fi) * 1994-10-31 1996-05-01 Nokia Mobile Phones Ltd Menetelmä ja järjestely samalla kanavalla toimivien signaalien erottamiseksi
JPH08321785A (ja) * 1995-05-24 1996-12-03 Sony Corp 送信機，受信機，送信方法，受信方法及び伝送方法
EP0767543A3 (de) 1995-10-06 2000-07-26 Siemens Aktiengesellschaft Kodemultiplexnachrichtenübertragung mit Interferenzunterdrückung
DE19616828C2 (de) 1996-04-26 1999-02-25 Siemens Ag Verfahren zur Separierung eines empfangenen Signalgemisches
US5790529A (en) * 1996-08-01 1998-08-04 Motorola, Inc. Communications network node with switched channelizer architecture
JPH10126313A (ja) * 1996-10-21 1998-05-15 Matsushita Electric Ind Co Ltd Ｃｄｍａ移動体通信装置
US5819168A (en) * 1997-05-01 1998-10-06 At&T Corp Adaptive communication system and method using unequal weighting of interface and noise
US6529492B1 (en) * 1997-12-30 2003-03-04 Matsushita Electric Industrial Co., Ltd. CDMA radio multiplex transmitting device and a CDMA radio multiplex receiving device
JP3335900B2 (ja) * 1998-02-27 2002-10-21 松下電器産業株式会社 干渉除去装置及び干渉除去方法
US6144710A (en) * 1998-04-23 2000-11-07 Lucent Technologies, Inc. Joint maximum likelihood sequence estimator with dynamic channel description
US6249518B1 (en) * 1998-08-07 2001-06-19 Nortel Networks Limited TDMA single antenna co-channel interference cancellation
US6177906B1 (en) * 1999-04-01 2001-01-23 Arraycomm, Inc. Multimode iterative adaptive smart antenna processing method and apparatus
US6141567A (en) * 1999-06-07 2000-10-31 Arraycomm, Inc. Apparatus and method for beamforming in a changing-interference environment

Also Published As

Publication number Publication date
DE60016971T2 (de) 2005-12-08
EP1238469B1 (de) 2004-12-22
ATE285637T1 (de) 2005-01-15
EP1238469A1 (de) 2002-09-11
US7016436B1 (en) 2006-03-21
AU1233501A (en) 2001-06-25
JP2003517248A (ja) 2003-05-20
WO2001045289A1 (en) 2001-06-21
JP4541626B2 (ja) 2010-09-08

Similar Documents

Publication Publication Date Title
DE60016971D1 (de) Systeme zur selektiven gemeinsamen demodulierung und verfahren für den empfang eines signals in der anwesenheit von rauschen und störsignalen
AU7071300A (en) Apparatus and method for selection of correlation timing in rake receivers
DE60142117D1 (de) Anordnung und verfahren zur anpassung eines funkempfangsgerätes unter anwendung von steuerfunktionen
NO971545D0 (no) Signaldeteksjon i et TDMA-system
ATE363773T1 (de) Verfahren und gerät zur dopplerspreizschätzung und dopplerverschiebungschätzung
DE60027432D1 (de) Synchronisierung sowie erfassung der modulationsart
TWI256783B (en) A unified MMSE equalization and multi-user detection approach for use in a CDMA system
ATE461559T1 (de) Systeme und verfahren zur charakterisierung von übertragunsleitern in einem dsl mehrträgersystem
EP0930719A3 (de) Störimpulsdetektor und Störimpulsreduziersystem
EP1120919A3 (de) Mehrwegrauschunterdrücker , Audioausgangsschaltung und FM-Empfänger
AU1822300A (en) Systems and methods for acquiring synchronization using dual detection thresholds
DE69419918D1 (de) Verfahren und einrichtung zur bestimmung der brauchbarkeit eines signals
ATE212771T1 (de) Verfahren und system zur ofdm-mehrträger- übertragung von digitalen rundfunksignalen
EP0952711A3 (de) Gemeinsamer Maximalwahrscheinlichkeits-Folgeschätzer mit dynamischer Kanalsbeschreibung
WO2004073180A3 (en) System and method for interference cancellation in a wireless communication receiver
NO973959D0 (no) Fremgangsmåte for estimering av signal- og stöykvalitet, samt mottaker
DE69729024D1 (de) Verfahren zur bestimmung der rahmenqualität und empfänger
WO2002003556A3 (en) Method and apparatus for channel gain and channel delay estimation in a multi-carrier cdma system
EP1456959A4 (de) Gemeinsame demodulation durch einen viterbi-entzerrer mit einer adaptiven gesamtzahl von zuständen
EP1071220A3 (de) Mehrwegstörungsreduktionsschaltung und Audioausgangsschaltung eines FM-Empfängers
SE0002715L (sv) Ekosläckning i frekvensdomänen
WO2004051913A3 (en) Excess delay spread detection method for multi-carrier communication systems
JP2000307476A5 (de)
TW200511787A (en) FSK signal demodulator circuit
EP1001550A3 (de) Sequentielles Detektionssystem und Verfahren mit anpassbarem Arbeitspunkt

Legal Events

Date Code Title Description
8364 No opposition during term of opposition