ATE484137T1 - Mehrbenutzerdetektion für drahtlose übertragungssysteme in gegenwart von inteferenz - Google Patents

Mehrbenutzerdetektion für drahtlose übertragungssysteme in gegenwart von inteferenz

Info

Publication number
ATE484137T1
ATE484137T1 AT04102920T AT04102920T ATE484137T1 AT E484137 T1 ATE484137 T1 AT E484137T1 AT 04102920 T AT04102920 T AT 04102920T AT 04102920 T AT04102920 T AT 04102920T AT E484137 T1 ATE484137 T1 AT E484137T1
Authority
AT
Austria
Prior art keywords
interference
wireless transmission
transmission systems
received signal
user detection
Prior art date
Application number
AT04102920T
Other languages
English (en)
Inventor
Eko N Onggosanusi
Timothy M Schmidl
Anand G Dabak
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of ATE484137T1 publication Critical patent/ATE484137T1/de

Links

Classifications

    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with inversion

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
AT04102920T 2003-06-23 2004-06-23 Mehrbenutzerdetektion für drahtlose übertragungssysteme in gegenwart von inteferenz ATE484137T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48070303P 2003-06-23 2003-06-23
US10/732,978 US7302233B2 (en) 2003-06-23 2003-12-11 Multiuser detection for wireless communications systems in the presence of interference

Publications (1)

Publication Number Publication Date
ATE484137T1 true ATE484137T1 (de) 2010-10-15

Family

ID=33424144

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04102920T ATE484137T1 (de) 2003-06-23 2004-06-23 Mehrbenutzerdetektion für drahtlose übertragungssysteme in gegenwart von inteferenz

Country Status (4)

Country Link
US (1) US7302233B2 (de)
EP (1) EP1492288B1 (de)
AT (1) ATE484137T1 (de)
DE (1) DE602004029422D1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7340213B2 (en) 2003-07-30 2008-03-04 Atc Technologies, Llc Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
US8670705B2 (en) 2003-07-30 2014-03-11 Atc Technologies, Llc Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US7830975B2 (en) * 2004-04-12 2010-11-09 Nokia Corporation I/Q MIMO detection for single antenna interference cancellation
US7817754B2 (en) * 2004-12-01 2010-10-19 Bae Systems Information And Electronic Systems Integration Inc. M-algorithm with prioritized user ordering
US7373130B2 (en) * 2005-04-13 2008-05-13 Telefonaktiebolaget L M Ericsson (Publ) Simultaneous channel estimation of a carrier and an interferer
US20070002980A1 (en) * 2005-06-29 2007-01-04 Eyal Krupka Method for timing and sequence hypotheses selection
US7672412B2 (en) 2006-04-05 2010-03-02 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
EP2009859B1 (de) * 2006-04-05 2009-12-23 Research In Motion Limited Verfahren und Empfänger zur Bewertung der Kanalimpulsreaktion bei einer konstanten Modulinterferenz-Entfernungsinteraktion
US8781043B2 (en) * 2006-11-15 2014-07-15 Qualcomm Incorporated Successive equalization and cancellation and successive mini multi-user detection for wireless communication
EP2505010A4 (de) 2009-11-27 2013-10-09 Qualcomm Inc Interferenzunterdrückung für nicht orthogonale kanalpaare
US8451964B2 (en) * 2010-02-23 2013-05-28 Qualcomm Incorporated Code block interference cancellation
US8275077B1 (en) * 2010-10-13 2012-09-25 The United States Of America As Represented By The Director, National Security Agency Coherent demodulation of ais-GMSK signals in co-channel
WO2013019244A1 (en) * 2011-08-04 2013-02-07 Research In Motion Limited Method and system for formatting cyclic prefix/postfix in a mobile communication system
EP2761765A4 (de) * 2011-09-28 2015-10-28 Ericsson Modems Sa Verfahren, vorrichtung, empfänger, computerprogramm und speichermedium für gemeinsame erkennug
EP2634923A1 (de) 2012-02-29 2013-09-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Interferenzabschwächung in einem Kommunikationssystem
US9166837B2 (en) 2013-06-11 2015-10-20 Qualcomm Incorporated Base station assisted frequency domain equalization
US9602240B1 (en) * 2015-09-11 2017-03-21 Signalchip Innovations Private Limited Method and system for symbol level interference cancellation at a receiver for multiuser detection
US20180213547A1 (en) 2017-01-26 2018-07-26 Electronics And Telecommunications Research Instit Ute Communication node for scheduling and interference control in wireless communication network, and operation method therefor

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5818876A (en) * 1993-02-01 1998-10-06 Motorola, Inc. Method and apparatus of adaptive maximum likelihood sequence estimation using a variable convergence step size
US6307868B1 (en) * 1995-08-25 2001-10-23 Terayon Communication Systems, Inc. Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops
US6628701B2 (en) * 1997-06-11 2003-09-30 Intel Corporation Method and apparatus for reducing spread spectrum noise
SG77607A1 (en) * 1997-08-26 2001-01-16 Univ Singapore A multi-user code division multiple access receiver
FR2774831B1 (fr) * 1998-02-11 2000-04-07 Agence Spatiale Europeenne Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes
US6366607B1 (en) * 1998-05-14 2002-04-02 Interdigital Technology Corporation Processing for improved performance and reduced pilot
US6700923B1 (en) * 1999-01-04 2004-03-02 Board Of Regents The University Of Texas System Adaptive multiple access interference suppression
US6426973B1 (en) * 1999-04-29 2002-07-30 The Board Of Trustees Of The University Of Illinois Differential minimum mean squared error communication signal compensation method
DE19923407C1 (de) * 1999-05-21 2000-08-24 Siemens Ag Empfangsverfahren und Empfangseinrichtung für Mobilfunkanwendungen
US6529495B1 (en) * 1999-05-24 2003-03-04 Nokia Telecommunications, Oy Method and apparatus for providing differencing multistage detection in the reverse link of a code division multiple access communication system
US6463107B1 (en) * 1999-07-01 2002-10-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for synchronization and modulation type detection
US6404760B1 (en) * 1999-07-19 2002-06-11 Qualcomm Incorporated CDMA multiple access interference cancellation using signal estimation
US6856643B1 (en) * 1999-10-22 2005-02-15 Cwill Telecommunications, Inc. Communication system and method for performing fast symbol estimation for multiple access disperse channels
US6628706B1 (en) * 1999-12-06 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for transforming a channel estimate
JP3846546B2 (ja) * 2000-08-29 2006-11-15 日本電気株式会社 周波数オフセット推定器
US6934317B1 (en) * 2000-10-11 2005-08-23 Ericsson Inc. Systems and methods for communicating spread spectrum signals using variable signal constellations
US6920191B2 (en) * 2001-02-02 2005-07-19 Telefonaktiebolaget Lm Ericsson (Publ) Estimation and compensation of the pulse-shape response in wireless terminals
US6967598B2 (en) * 2004-02-20 2005-11-22 Bae Systems Information And Electronic Systems Integration Inc Reduced complexity multi-turbo multi-user detector
US7221699B1 (en) * 2002-06-28 2007-05-22 Arraycomm Llc External correction of errors between traffic and training in a wireless communications system
US7243064B2 (en) * 2002-11-14 2007-07-10 Verizon Business Global Llc Signal processing of multi-channel data

Also Published As

Publication number Publication date
US7302233B2 (en) 2007-11-27
EP1492288B1 (de) 2010-10-06
EP1492288A3 (de) 2005-08-10
DE602004029422D1 (de) 2010-11-18
US20040259504A1 (en) 2004-12-23
EP1492288A2 (de) 2004-12-29

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