ATE285637T1 - 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
ATE285637T1
ATE285637T1 AT00973886T AT00973886T ATE285637T1 AT E285637 T1 ATE285637 T1 AT E285637T1 AT 00973886 T AT00973886 T AT 00973886T AT 00973886 T AT00973886 T AT 00973886T AT E285637 T1 ATE285637 T1 AT E285637T1
Authority
AT
Austria
Prior art keywords
signal
noise
interference
power
demodulation
Prior art date
Application number
AT00973886T
Other languages
English (en)
Inventor
Karl J Molnar
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
Application granted granted Critical
Publication of ATE285637T1 publication Critical patent/ATE285637T1/de

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)
AT00973886T 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 ATE285637T1 (de)

Applications Claiming Priority (2)

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
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 (1)

Publication Number Publication Date
ATE285637T1 true ATE285637T1 (de) 2005-01-15

Family

ID=23845410

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00973886T ATE285637T1 (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
US6115406A (en) 1999-09-10 2000-09-05 Interdigital Technology Corporation Transmission using an antenna array in a CDMA communication system
US6278726B1 (en) 1999-09-10 2001-08-21 Interdigital Technology Corporation Interference cancellation in a spread spectrum 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
FI102797B (fi) * 1994-10-07 1999-02-15 Nokia Mobile Phones Ltd Signaalin ilmaisumenetelmä TDMA-matkaviestinjärjestelmän vastaanottime ssa 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
US6301237B1 (en) * 1997-12-30 2001-10-09 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
EP1238469B1 (de) 2004-12-22
DE60016971D1 (de) 2005-01-27
EP1238469A1 (de) 2002-09-11
WO2001045289A1 (en) 2001-06-21
JP4541626B2 (ja) 2010-09-08
JP2003517248A (ja) 2003-05-20
US7016436B1 (en) 2006-03-21
DE60016971T2 (de) 2005-12-08
AU1233501A (en) 2001-06-25

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