DE69906811D1 - Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen - Google Patents

Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen

Info

Publication number
DE69906811D1
DE69906811D1 DE69906811T DE69906811T DE69906811D1 DE 69906811 D1 DE69906811 D1 DE 69906811D1 DE 69906811 T DE69906811 T DE 69906811T DE 69906811 T DE69906811 T DE 69906811T DE 69906811 D1 DE69906811 D1 DE 69906811D1
Authority
DE
Germany
Prior art keywords
correlations
resolved
signal components
spreading
spreading sequences
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
DE69906811T
Other languages
English (en)
Inventor
Eric Wang
Ali Khayrallah
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
Application granted granted Critical
Publication of DE69906811D1 publication Critical patent/DE69906811D1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
DE69906811T 1999-01-22 1999-11-12 Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen Expired - Lifetime DE69906811D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/235,470 US6501788B1 (en) 1999-01-22 1999-01-22 Apparatus and methods for intereference cancellation in spread spectrum communications systems
PCT/US1999/026911 WO2000044106A1 (en) 1999-01-22 1999-11-12 Apparatus and methods for interference cancellation in spread spectrum communication system

Publications (1)

Publication Number Publication Date
DE69906811D1 true DE69906811D1 (de) 2003-05-15

Family

ID=22885648

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69906811T Expired - Lifetime DE69906811D1 (de) 1999-01-22 1999-11-12 Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen

Country Status (8)

Country Link
US (1) US6501788B1 (de)
EP (1) EP1147620B1 (de)
JP (1) JP4263368B2 (de)
CN (1) CN1146136C (de)
AT (1) ATE237199T1 (de)
AU (1) AU1622400A (de)
DE (1) DE69906811D1 (de)
WO (1) WO2000044106A1 (de)

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US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
FR2831717A1 (fr) * 2001-10-25 2003-05-02 France Telecom Methode et systeme d'elimination d'interference pour antenne multicapteur
US7039134B1 (en) * 2002-01-22 2006-05-02 Comsys Communication & Signal Processing Ltd. Reduced complexity correlator for use in a code division multiple access spread spectrum receiver
MXPA04009331A (es) 2002-03-25 2005-01-25 Interdigital Tech Corp Metodo y aparato para la deteccion de codigo ciego.
TWI389487B (zh) 2002-04-19 2013-03-11 Interdigital Tech Corp 通信站及無線通信方法
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US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US8761321B2 (en) 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
JP4444832B2 (ja) * 2002-09-23 2010-03-31 テンソルコム インコーポレイテッド スペクトル拡散システムにおける干渉除去を選択的に利用するための方法及び装置
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
KR100504804B1 (ko) * 2002-09-28 2005-08-01 엘지전자 주식회사 Ｗｃｄｍａ시스템의 역채널화방법
US20040091055A1 (en) * 2002-10-30 2004-05-13 Williams Thomas Holtzman Digital transmission system using non-orthogonal matrices
US20040240529A1 (en) * 2003-05-28 2004-12-02 Leonard Eric David Discontinuous transmission detection method
US7269199B2 (en) * 2003-08-28 2007-09-11 Lenovo (Singapore) Pte. Ltd. Apparatus and method employing dynamic hop sequence adjustment in FHSS networks
US7864725B2 (en) 2004-01-29 2011-01-04 Neocific, Inc. Methods and apparatus for overlaying multi-carrier and direct sequence spread spectrum signals in a broadband wireless communication system
EP2259448A3 (de) * 2005-01-05 2013-11-13 ATC Technologies, LLC Adaptiv Strahlformung mit Mehrbenutzerdetektion und Interferenzreduktion bei Satellitenkommunikationssystemen und Verfahren
US7483386B2 (en) * 2005-03-31 2009-01-27 Alcatel-Lucent Usa Inc. Adaptive threshold setting for discontinuous transmission detection
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
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CN1929353B (zh) * 2005-09-09 2012-04-25 展讯通信（上海）有限公司 同频小区信道估计方法及装置
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US7751463B2 (en) * 2006-12-05 2010-07-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for suppressing interference based on channelization code power estimation with bias removal
CN1972165B (zh) * 2006-12-15 2010-12-08 华为技术有限公司 一种干扰检测方法及装置
US9119132B2 (en) 2007-10-10 2015-08-25 Qualcomm Incorporated Efficient system identification schemes for communication systems
US7995641B2 (en) * 2007-11-06 2011-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for code power parameter estimation for received signal processing
US8249540B1 (en) 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
US8494098B2 (en) * 2009-05-04 2013-07-23 Qualcomm Incorporated Method and system for inter-cell interference cancellation
US8615030B2 (en) * 2009-05-04 2013-12-24 Qualcomm Incorporated Method and system for multi-user detection using two-stage processing
US8494029B2 (en) * 2009-05-04 2013-07-23 Qualcomm Incorporated Method and system for multi-user detection in the presence of multiple spreading factors
CN101902780B (zh) * 2009-05-26 2013-03-13 上海贝尔股份有限公司 无线多用户通信的方法及其装置
US8451963B2 (en) * 2009-06-09 2013-05-28 Qualcomm Incorporated Method and system for interference cancellation
US8611481B2 (en) * 2011-02-25 2013-12-17 Broadcom Corporation Blind control channel detection
US8693971B1 (en) * 2012-12-07 2014-04-08 Intel Mobile Communications GmbH Receiver, receiver circuits, and methods for providing an interference-reduced signal
WO2017065795A1 (en) * 2015-10-16 2017-04-20 Hewlett Packard Enterprise Development Lp Incremental update of a neighbor graph via an orthogonal transform based indexing
US11291020B2 (en) * 2019-04-10 2022-03-29 Hussein Moradi Spread spectrum scheduling requests for wireless communication resource

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FI105517B (fi) 1996-10-18 2000-08-31 Nokia Networks Oy Vastaanottomenetelmä ja vastaanotin
US6298050B1 (en) 1998-11-25 2001-10-02 Nortel Networks Limited System and method for cancelling the extra interference created during position location in a CDMA cellular system

Also Published As

Publication number Publication date
WO2000044106A1 (en) 2000-07-27
EP1147620A1 (de) 2001-10-24
US6501788B1 (en) 2002-12-31
EP1147620B1 (de) 2003-04-09
JP2002535913A (ja) 2002-10-22
AU1622400A (en) 2000-08-07
CN1146136C (zh) 2004-04-14
CN1339202A (zh) 2002-03-06
JP4263368B2 (ja) 2009-05-13
ATE237199T1 (de) 2003-04-15

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