DE69533888D1 - Übertragungskanalschätzung in einem Vielfachzugriffsstörungsunterdrückung verwendenden CDMA-Empfänger - Google Patents

Übertragungskanalschätzung in einem Vielfachzugriffsstörungsunterdrückung verwendenden CDMA-Empfänger

Info

Publication number
DE69533888D1
DE69533888D1 DE69533888T DE69533888T DE69533888D1 DE 69533888 D1 DE69533888 D1 DE 69533888D1 DE 69533888 T DE69533888 T DE 69533888T DE 69533888 T DE69533888 T DE 69533888T DE 69533888 D1 DE69533888 D1 DE 69533888D1
Authority
DE
Germany
Prior art keywords
multiple access
channel estimation
transmission channel
interference suppression
cdma receiver
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
DE69533888T
Other languages
English (en)
Other versions
DE69533888T2 (de
Inventor
Jorma Lilleberg
Timo Laakso
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69533888D1 publication Critical patent/DE69533888D1/de
Publication of DE69533888T2 publication Critical patent/DE69533888T2/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
    • H04B1/7107—Subtractive interference cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
DE69533888T 1994-11-03 1995-10-30 Übertragungskanalschätzung in einem Vielfachzugriffsstörungsunterdrückung verwendenden CDMA-Empfänger Expired - Lifetime DE69533888T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI945190 1994-11-03
FI945190A FI97180C (fi) 1994-11-03 1994-11-03 Menetelmä kanavan estimoimiseksi ja vastaanotin

Publications (2)

Publication Number Publication Date
DE69533888D1 true DE69533888D1 (de) 2005-02-03
DE69533888T2 DE69533888T2 (de) 2005-05-19

Family

ID=8541739

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69533888T Expired - Lifetime DE69533888T2 (de) 1994-11-03 1995-10-30 Übertragungskanalschätzung in einem Vielfachzugriffsstörungsunterdrückung verwendenden CDMA-Empfänger

Country Status (5)

Country Link
US (1) US5905946A (de)
EP (1) EP0711044B1 (de)
JP (1) JPH08237190A (de)
DE (1) DE69533888T2 (de)
FI (1) FI97180C (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI100150B (fi) * 1996-03-19 1997-09-30 Nokia Telecommunications Oy Vastaanottomenetelmä ja vastaanotin
FI101659B (fi) 1996-07-12 1998-07-31 Nokia Mobile Phones Ltd Viiveen estimointimenetelmä ja vastaanotin
KR100267343B1 (ko) * 1996-10-29 2000-10-16 윤종용 부호분할 다중 접속방식 단말기의 외부 간섭신호 제거장치 및 방법
US6377610B1 (en) * 1997-04-25 2002-04-23 Deutsche Telekom Ag Decoding method and decoding device for a CDMA transmission system for demodulating a received signal available in serial code concatenation
DE19717546B4 (de) * 1996-12-05 2014-05-15 Deutsche Telekom Ag Verfahren und Vorrichtung zur Decodierung bei einem CDMA-Übertragungssystem zum Demodulieren eines Empfangssignals, das in serieller Codeverkettung vorliegt
JP3006679B2 (ja) * 1997-01-16 2000-02-07 日本電気株式会社 セルラー移動電話システム
FI109735B (fi) 1997-02-28 2002-09-30 Nokia Corp Vastaanottomenetelmä ja vastaanotin
FI104020B (fi) 1997-06-23 1999-10-29 Nokia Telecommunications Oy Vastaanottomenetelmä ja vastaanotin
FR2770058B1 (fr) 1997-10-22 1999-11-19 Commissariat Energie Atomique Procede de traitement d'un signal de transmission d'information par etalement de spectre et recepteur correspondant
FI112739B (fi) 1998-05-25 2003-12-31 Nokia Corp Menetelmä ja laitteisto häiritsevän signaalin havaitsemiseen radiovastaanottimessa
GB9811382D0 (en) 1998-05-27 1998-07-22 Nokia Mobile Phones Ltd A transmitter
GB9811380D0 (en) 1998-05-27 1998-07-22 Nokia Mobile Phones Ltd A transciever for wireless communication
FI981518A (fi) 1998-07-01 2000-01-02 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä ja radiojärjestelmä
SG97783A1 (en) * 1999-02-02 2003-08-20 Univ Singapore A joint channel and information sequence estimation technique
FI112831B (fi) * 1999-04-28 2004-01-15 Nokia Corp Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin
FR2793363B1 (fr) * 1999-05-04 2001-07-06 France Telecom Procede de detection conjointe d'un ensemble de codes cdma
US8831130B1 (en) * 1999-10-16 2014-09-09 Ipcom Gmbh & Co. Kg Channel estimate predicted from several previous channel estimates, for pre-equalization
DE60026580D1 (de) * 1999-12-01 2006-05-04 Ericsson Telefon Ab L M Bitfehlerratenschätzung von pilotsignalen
GB2362068B (en) * 2000-05-03 2004-08-18 Siemens Ag Channel estimator for a pipelined interference cancellation apparatus
EP1170916B1 (de) 2000-07-05 2006-12-27 Sony Deutschland GmbH Kanalschätzer für ein OFDM System
CN1208910C (zh) * 2000-09-05 2005-06-29 连宇通信有限公司 一种信道估计的方法及实现该方法的系统
DE60028228T2 (de) * 2000-10-12 2006-09-28 Matsushita Electric Industrial Co., Ltd., Kadoma Störungsunterdrückungssystem in einem cdma empfänger und verfahren zur störungsunterdrückung
CN1150708C (zh) 2000-11-21 2004-05-19 华为技术有限公司 一种提高码分多址蜂窝移动通信系统信道利用率的方法
KR100488102B1 (ko) * 2000-12-26 2005-05-09 엘지전자 주식회사 병렬 간섭제거기를 사용하는 채널추정 장치
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
US20030229540A1 (en) * 2002-06-10 2003-12-11 First Data Corporation Rebate issuance and reconciliation systems and methods
DE10303475B3 (de) * 2003-01-29 2004-10-07 Infineon Technologies Ag Maximum-Likelihood-Abschätzung der Kanalkoeffizienten und des DC-Offset in einem digitalen Basisbandsignal eines Funkempfängers mit dem SAGE-Algorithmus
KR100943272B1 (ko) * 2003-02-18 2010-02-23 삼성전자주식회사 디지털 통신 시스템의 채널 추정 장치 및 그의 채널 추정방법
US7385617B2 (en) * 2003-05-07 2008-06-10 Illinois Institute Of Technology Methods for multi-user broadband wireless channel estimation
GB2407008B (en) * 2003-10-10 2006-01-18 Toshiba Res Europ Ltd A mimo communication system
WO2006073893A2 (en) 2005-01-05 2006-07-13 Atc Technologies, Llc Adaptive beam forming with multi-user detection and interference reduction in satellite communiation systems and methods
GB2456874A (en) * 2008-01-30 2009-08-05 Nokia Corp Method and apparatus for detecting a data stream based on an estimated data stream and an estimated interference.
KR102129045B1 (ko) * 2015-12-28 2020-07-02 주식회사 쏠리드 간섭신호 제거장치 및 제거방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470138A (en) * 1982-11-04 1984-09-04 The United States Of America As Represented By The Secretary Of The Army Non-orthogonal mobile subscriber multiple access system
US5329547A (en) * 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
US5553062A (en) * 1993-04-22 1996-09-03 Interdigital Communication Corporation Spread spectrum CDMA interference canceler system and method
US5363403A (en) * 1993-04-22 1994-11-08 Interdigital Technology Corporation Spread spectrum CDMA subtractive interference canceler and method

Also Published As

Publication number Publication date
FI97180C (fi) 1996-10-25
FI945190A0 (fi) 1994-11-03
DE69533888T2 (de) 2005-05-19
EP0711044A2 (de) 1996-05-08
EP0711044A3 (de) 2000-05-24
FI945190A (fi) 1996-05-04
US5905946A (en) 1999-05-18
JPH08237190A (ja) 1996-09-13
EP0711044B1 (de) 2004-12-29
FI97180B (fi) 1996-07-15

Similar Documents

Publication Publication Date Title
DE69533888D1 (de) Übertragungskanalschätzung in einem Vielfachzugriffsstörungsunterdrückung verwendenden CDMA-Empfänger
DE69534497D1 (de) CDMA Kommunikationssystem mit verbesserter Interferenzunterdrückung
DE69429715D1 (de) Empfänger für spreizspektrumübertragung
DE69521852D1 (de) Adaptiver spreizspektrumempfänger
HK1019025A1 (en) Direct sequence- code division multiple access receiver with multiuser interference canceller.
AU687471B2 (en) DS/CDMA receiver using parallel-operating multi-purpose correlators
DE69921005D1 (de) Mehrbenutzerempfangsgerät mit paralleler Störunterdrückung
GB2307148B (en) Interference reduction in telecommunication systems
EP0717505A3 (de) CDMA Mehrbenutzerempfänger und Verfahren
ZA966011B (en) Adaptive despreader
EP0667686A3 (de) Direktsequenz CDMA Diversitätsempfänger mit Entspreizungsfiltern.
DE69432619D1 (de) Vielfachzugriffsinterferenzunterdrückung für einen CDMA-Demodulator
GB2337419B (en) DS-CDMA multi-user interference canceller and DS-CDMA communication system
NO20004315D0 (no) Samkanalinterferens i en mottaker
DK0694706T3 (da) Adaptiv glidekobling
AU4528197A (en) 3-D multiple attenuation
GB2314749B (en) Echo cancellation using wavelet packet techniques
GB9619789D0 (en) Leak noise correlator
DE69514407D1 (de) Getriebe
IL114868A0 (en) Time division multiple access receiver
DE69731052D1 (de) Spreizspektrumempfänger mit Schmallbandstörungsunterdrückung
DE69712367D1 (de) Senderinterferenzunterdrückung
GB9506715D0 (en) Improved additive
GB9424575D0 (en) Tobechi variable transmission
GB9517370D0 (en) Drain apertures

Legal Events

Date Code Title Description
8364 No opposition during term of opposition