ATE237199T1 - Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen - Google Patents

Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen

Info

Publication number
ATE237199T1
ATE237199T1 AT99958957T AT99958957T ATE237199T1 AT E237199 T1 ATE237199 T1 AT E237199T1 AT 99958957 T AT99958957 T AT 99958957T AT 99958957 T AT99958957 T AT 99958957T AT E237199 T1 ATE237199 T1 AT E237199T1
Authority
AT
Austria
Prior art keywords
correlations
resolved
signal components
spreading
spreading sequences
Prior art date
Application number
AT99958957T
Other languages
English (en)
Inventor
Yi-Pin Eric Wang
Ali Khayrallah
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 ATE237199T1 publication Critical patent/ATE237199T1/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
    • 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)
AT99958957T 1999-01-22 1999-11-12 Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen ATE237199T1 (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
ATE237199T1 true ATE237199T1 (de) 2003-04-15

Family

ID=22885648

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99958957T ATE237199T1 (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)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000295200A (ja) * 1999-04-01 2000-10-20 Matsushita Electric Ind Co Ltd 干渉信号除去装置
JP3251261B2 (ja) * 1999-04-21 2002-01-28 エヌイーシーモバイリング株式会社 Ｃｄｍａ受信装置
DE19918386C2 (de) * 1999-04-22 2003-08-28 Siemens Ag Verfahren und Vorrichtung zum Decodieren eines Codemultiplex-Signals sowie Verwendung der Vorrichtung
US6816541B1 (en) * 1999-05-24 2004-11-09 Texas Instruments Incorporated Spread spectrum interference cancellation
US6885691B1 (en) * 1999-08-02 2005-04-26 Lg Information & Communications, Ltd. Scrambling codes and channelization codes for multiple chip rate signals in CDMA cellular mobile radio communication system
US7123579B1 (en) * 1999-08-04 2006-10-17 Lg Electronics Inc. Method of transmitting non-orthogonal physical channels in the communications system
US7415061B2 (en) * 1999-08-31 2008-08-19 Broadcom Corporation Cancellation of burst noise in a communication system with application to S-CDMA
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
US6973063B1 (en) * 2000-03-21 2005-12-06 Ericsson, Inc. Methods, systems and apparatus for precompensating for interference among transmitted coded signals
JP3672808B2 (ja) * 2000-09-06 2005-07-20 松下電器産業株式会社 無線通信端末装置及び干渉キャンセル方法
EP1202483A1 (de) * 2000-10-27 2002-05-02 Alcatel Korrelierte Spreizsequenzen für hochratige nicht-kohärente Nachrichtenübertragungssysteme
US7012977B2 (en) * 2000-12-29 2006-03-14 Telefonaktiebolaget Lm Ericsson (Publ) System, method and apparatus for wireless channel parameter estimation in spread spectrum communication systems
US7697594B2 (en) * 2001-03-30 2010-04-13 Texas Instruments Incorporated Method and apparatus for regenerative based interference cancellation within a communication system
JP3492646B2 (ja) * 2001-04-20 2004-02-03 松下電器産業株式会社 基地局探索方法および移動体無線端末装置
JP4072910B2 (ja) * 2001-08-21 2008-04-09 インフィネオン テヒノロジース アクチェンゲゼルシャフト 拡散スペクトル通信システムにおいてデータ速度を増大させる方法及び装置
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
US7158559B2 (en) 2002-01-15 2007-01-02 Tensor Comm, Inc. Serial cancellation receiver design for a coded signal processing engine
FR2831717A1 (fr) * 2001-10-25 2003-05-02 France Telecom Methode et systeme d'elimination d'interference pour antenne multicapteur
US7787518B2 (en) 2002-09-23 2010-08-31 Rambus Inc. Method and apparatus for selectively applying interference cancellation in spread spectrum systems
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
KR100959323B1 (ko) 2002-03-25 2010-05-26 인터디지탈 테크날러지 코포레이션 통신 신호 수신 방법
TWI276313B (en) 2002-04-19 2007-03-11 Interdigital Tech Corp Receiving station for CDMA wireless system and method
AU2002318703A1 (en) * 2002-06-21 2004-01-06 Linkair Communications, Inc. A method of spread spetrum of multi-code channels for ls codes
SG108874A1 (en) * 2002-09-17 2005-02-28 Sony Corp Channel equalisation
US8761321B2 (en) 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
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
EP1712019B1 (de) 2004-01-29 2014-01-15 Neocific, Inc. Verfahren und vorrichtungen zum überlagern von mehrträger- und direktsequenz-spreizspektrumsignalen in einem breitbandigen drahtlosen kommunikationssystem
EP1844558B1 (de) * 2005-01-05 2018-02-14 ATC Technologies, LLC Adaptive 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
US7729411B2 (en) * 2005-04-27 2010-06-01 Telefonaktiebolaget L M Ericsson (Publ) Joint detector in a code division multiple access radio receiver
EP1724602B1 (de) * 2005-05-10 2014-04-23 STMicroelectronics (Research & Development) Limited System, Ortungsgerät und Verfahren zur Signalakquisition
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
US7881412B2 (en) * 2005-11-21 2011-02-01 Qualcomm Incorporated Quasi-linear interference cancellation for wireless communication
JP4815556B2 (ja) * 2005-12-06 2011-11-16 エスティー‐エリクソン、ソシエテ、アノニム アクティブ拡散符号およびその電力の決定
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673291A (en) 1994-09-14 1997-09-30 Ericsson Inc. Simultaneous demodulation and decoding of a digitally modulated radio signal using known symbols
US5572552A (en) 1994-01-27 1996-11-05 Ericsson Ge Mobile Communications Inc. Method and system for demodulation of downlink CDMA signals
US5465269A (en) * 1994-02-02 1995-11-07 Motorola, Inc. Method and apparatus for encoding and decoding a supplementary signal
US5724378A (en) 1994-12-13 1998-03-03 Nit Mobile Communications Network, Inc. CDMA multiuser receiver and method
US5615209A (en) 1995-07-26 1997-03-25 Ericsson Inc. Method and apparatus for CDMA signal orthogonalization
US5978413A (en) 1995-08-28 1999-11-02 Bender; Paul E. Method and system for processing a plurality of multiple access transmissions
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
CN1339202A (zh) 2002-03-06
CN1146136C (zh) 2004-04-14
JP4263368B2 (ja) 2009-05-13
AU1622400A (en) 2000-08-07
WO2000044106A1 (en) 2000-07-27
EP1147620B1 (de) 2003-04-09
DE69906811D1 (de) 2003-05-15
US6501788B1 (en) 2002-12-31
EP1147620A1 (de) 2001-10-24
JP2002535913A (ja) 2002-10-22

Similar Documents

Publication Publication Date Title
ATE237199T1 (de) Verfahren und vorrichtung zur interferenzunterdrückung in spreizspektrumnachrichtenübertragungssystemen
AU701816B2 (en) Spread spectrum interference canceler system and method
JP4316500B2 (ja) 受信ダイバーシティを用いるブロック送信のためのグループ単位連続干渉キャンセル
HK1070523A1 (en) Method and apparatus for estimating the position of a terminal based on identification codes for transmission sources
DE60015546D1 (de) Mehrstufiges rake kombinierungsverfahren und einrichtung
BR9508876A (pt) Transmissor e receptor em um sistema para comunicar uma sequência de simbolos de informação e processo de transmitir e detectar uma sequência de simbolos de informação
CA2325649A1 (en) Fht-based rach preamble detection
WO2001041318A3 (en) Method and apparatus for spreading modulation in spread spectrum communications systems
SE9702891D0 (sv) Spread spectrum communication system
CA2245196A1 (en) Device and method for generating spread spectrum signal using pseudo-orthogonal code in cdma mobile communications system
WO2002073230A3 (en) Wireless communications methods and systems for short-code and other spread spectrum waveform processing
BR0014206A (pt) Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuários
SE9700212D0 (sv) Amethod and an arrangement in a communication system
JP2007529963A (ja) １対１スペクトル拡散通信における信号の同期捕捉
ATE354920T1 (de) Verbesserte kodierung der direkt-zugriffspräambel für aufbau von drahtlosen mobilkommunikationsverbindungen
ATE343270T1 (de) Mehrbenutzerdetektion in einem mc-cdma nachrichtensystem
US6947471B1 (en) Method for using encoded spreading codes to achieve high bit densities in a direct-sequence spread spectrum communication system
Kiran et al. Performance analysis of multi user detectors for synchronous ds-cdma systems
KR940007672B1 (ko) 직접 확산 통신 방식에 있어서 파일럿 신호를 이용한 다중 접속 시스템 및 방법
Croitoru EFFICIENCY OF SPREADING SPECTRUM IN DSSS SYSTEMS WITH GOLD SEQUENCES
Taye et al. Analysis of Multi-User Interference in Pseudo-Noise DS-CDMA
Jin et al. A new scheme for multiuser detection in DS-CDMA system

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties