ATE279815T1 - Adaptiver empfänger für vielfachwegausbreitung in einen kodemultiplex-vielfachzugriff- kommunikationssystem - Google Patents

Adaptiver empfänger für vielfachwegausbreitung in einen kodemultiplex-vielfachzugriff- kommunikationssystem

Info

Publication number
ATE279815T1
ATE279815T1 AT99941569T AT99941569T ATE279815T1 AT E279815 T1 ATE279815 T1 AT E279815T1 AT 99941569 T AT99941569 T AT 99941569T AT 99941569 T AT99941569 T AT 99941569T AT E279815 T1 ATE279815 T1 AT E279815T1
Authority
AT
Austria
Prior art keywords
communication system
access communication
receiver
path propagation
code multiplex
Prior art date
Application number
AT99941569T
Other languages
English (en)
Inventor
Tapani Westman
Original Assignee
Nokia Corp
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 Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE279815T1 publication Critical patent/ATE279815T1/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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Structure Of Receivers (AREA)
  • Transplanting Machines (AREA)
AT99941569T 1998-08-21 1999-08-10 Adaptiver empfänger für vielfachwegausbreitung in einen kodemultiplex-vielfachzugriff- kommunikationssystem ATE279815T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9818378.3A GB9818378D0 (en) 1998-08-21 1998-08-21 Receiver
PCT/EP1999/005827 WO2000011798A1 (en) 1998-08-21 1999-08-10 Adaptive receiver for multipach propagation in a cdma communication system

Publications (1)

Publication Number Publication Date
ATE279815T1 true ATE279815T1 (de) 2004-10-15

Family

ID=10837705

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99941569T ATE279815T1 (de) 1998-08-21 1999-08-10 Adaptiver empfänger für vielfachwegausbreitung in einen kodemultiplex-vielfachzugriff- kommunikationssystem

Country Status (10)

Country Link
US (1) US6680967B1 (de)
EP (1) EP1105977B1 (de)
JP (1) JP2002523961A (de)
KR (1) KR20010072840A (de)
CN (1) CN1117434C (de)
AT (1) ATE279815T1 (de)
AU (1) AU5513599A (de)
DE (1) DE69921155T2 (de)
GB (1) GB9818378D0 (de)
WO (1) WO2000011798A1 (de)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI19991871A7 (fi) * 1999-09-02 2001-03-03 Nokia Networks Oy Menetelmä signaalikomponenttien käsittelemiseksi kommunikaatiojärjestelmässä ja vastanotin
DE19961594B4 (de) * 1999-12-21 2013-08-14 Ipcom Gmbh & Co. Kg Verfahren für die Übertragung von Datensignalen zwischen einer Sendestation und mehreren Empfangsstationen, Sendestation und Empfangsstation
JP2001257627A (ja) * 2000-03-13 2001-09-21 Kawasaki Steel Corp 無線受信機
FI118877B (fi) * 2000-06-19 2008-04-15 Valtion Teknillinen Liiketilan estimointi
US7065130B1 (en) * 2000-10-02 2006-06-20 Telefonaktiebolaget Lm Ericsson (Publ) Searching for signals in a communications system
CN1140075C (zh) * 2000-12-18 2004-02-25 信息产业部电信传输研究所 基于多径能量窗的码分多址系统初始同步与小区搜索装置
US6922452B2 (en) * 2001-03-27 2005-07-26 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for estimating Doppler spread
US20020176485A1 (en) * 2001-04-03 2002-11-28 Hudson John E. Multi-cast communication system and method of estimating channel impulse responses therein
KR100393192B1 (ko) * 2001-07-11 2003-07-31 삼성전자주식회사 시변 채널에 적합한 신호 수신 장치 및 방법
EP1296156B1 (de) * 2001-09-25 2009-01-28 STMicroelectronics N.V. Verfahren und Vorrichtung zur Geschwindigkeitsschätzung eines Mobilendgerätes insbesondere zellulares Mobiltelefon mit UMTS Fähigkeit
GB0126130D0 (en) * 2001-10-31 2002-01-02 Nokia Corp Frequency error estimation
US7164649B2 (en) * 2001-11-02 2007-01-16 Qualcomm, Incorporated Adaptive rate control for OFDM communication system
US7209433B2 (en) * 2002-01-07 2007-04-24 Hitachi, Ltd. Channel estimation and compensation techniques for use in frequency division multiplexed systems
US7263349B2 (en) * 2002-03-12 2007-08-28 Qualcomm Incorporated Velocity responsive time tracking
AU2003249605A1 (en) * 2002-05-06 2003-11-11 Via Telecom, Inc. Method and apparatus for reducing power of a cdma mobile station by controlled transition from control hold to active state
JP3407255B1 (ja) 2002-05-07 2003-05-19 富士通株式会社 雑音除去方法及び装置
JP3961907B2 (ja) * 2002-08-23 2007-08-22 富士通株式会社 フェージング周波数推定装置
TW579636B (en) * 2002-10-25 2004-03-11 Benq Corp Method and system for estimating movement speed of mobile phone
US7286481B2 (en) * 2002-12-17 2007-10-23 Intel Corporation Wireless network adapted to transmit channel side information and method thereof
US20040125865A1 (en) * 2002-12-30 2004-07-01 Frank Colin D. Maximum signal-to-interference-and-noise spread spectrum rake receiver and method
WO2004068749A1 (ja) * 2003-01-30 2004-08-12 Fujitsu Limited フェ−ジング周波数推定装置
US7301990B2 (en) * 2003-02-21 2007-11-27 Qualcomm Incorporated Equalization of multiple signals received for soft handoff in wireless communication systems
DE10322943B4 (de) * 2003-05-21 2005-10-06 Infineon Technologies Ag Hardware-Vorrichtung zur Aufbereitung von Pilotsymbolen für eine Kanalschätzung mittels adaptiver Tiefpassfilterung
US7869488B2 (en) * 2003-08-28 2011-01-11 Qualcomm Incorporated Method and apparatus for removing code aliases when using short synchronization codes
US20050047491A1 (en) * 2003-08-28 2005-03-03 Haitao Zhang Method and apparatus for improving channel estimate based on short synchronization code
EP2603041A1 (de) * 2003-09-04 2013-06-12 Fujitsu Limited Kommunikationssystem und Übergabekommunikationsverfahren
KR100712323B1 (ko) * 2003-10-02 2007-05-02 삼성전자주식회사 패킷 통신 시스템에서 빠른 전송율 변화를 지원하는 역방향 전송율 스케쥴링 방법 및 장치
US7903617B2 (en) * 2003-12-03 2011-03-08 Ruey-Wen Liu Method and system for multiuser wireless communications using anti-interference to increase transmission data rate
US20050193315A1 (en) * 2004-02-18 2005-09-01 Massimo Bertinelli Method and apparatus for performing a TFCI reliability check in E-DCH
JP4744965B2 (ja) * 2004-08-09 2011-08-10 パナソニック株式会社 無線通信装置
US8503328B2 (en) * 2004-09-01 2013-08-06 Qualcomm Incorporated Methods and apparatus for transmission of configuration information in a wireless communication network
US7372895B2 (en) * 2004-12-08 2008-05-13 Telefonaktiebolaget Lm Ericsson (Publ) Method of and system for delay estimation with minimized finger allocation
US7610025B2 (en) * 2005-03-29 2009-10-27 Qualcomm Incorporated Antenna array pattern distortion mitigation
US7917798B2 (en) 2005-10-04 2011-03-29 Hypres, Inc. Superconducting digital phase rotator
GB0601952D0 (en) 2006-01-31 2006-03-15 M M I Res Ltd Methods of maintaining connection with, and determining the direction of, a mobile device
WO2008107848A1 (en) * 2007-03-06 2008-09-12 Nxp B.V. Improvements in or relating to cdma receivers and cdma communications systems
US8626808B2 (en) * 2007-06-04 2014-01-07 Nxp, B.V. Digital signal processing circuit and method comprising band selection
FR2943192B1 (fr) * 2009-03-13 2011-06-03 St Wireless Sa Procede d'affectation d'un doigt (finger) pour un recepteur de type rateau (rake) en mode de veille,et dispositif pour la mise en oeuvre du procede
FR2943193B1 (fr) * 2009-03-13 2011-04-01 St Ericsson Sa Procede d'affectation et de liberation d'un correlateur dans un recepteur de type rake et recepteur pour la mise en oeuvre du procede
US8559887B2 (en) * 2009-07-09 2013-10-15 Cisco Technology, Inc. Coherence time estimation and mobility detection for wireless channel
CN101707493B (zh) * 2009-08-26 2012-09-26 南京邮电大学 多径信号载波相干解调瑞克接收机
US8606254B2 (en) 2009-10-30 2013-12-10 Blackberry Limited Method and system for receiver adaptation based on knowledge of wireless propagation environments
US8737457B2 (en) 2012-09-28 2014-05-27 Telefonaktiebolaget L M Ericsson (Publ) Adaptive smoothing of channel estimates
US8737550B1 (en) 2012-12-04 2014-05-27 Telefonaktiebolaget L M Ericsson (Publ) Estimating optimal linear regression filter length for channel estimation
US10715288B2 (en) * 2016-05-10 2020-07-14 Apple Inc. Wireless local area network sounding protocol
EP4451627A1 (de) * 2023-03-21 2024-10-23 Samsung Electronics Co., Ltd. Benutzergerät und betriebsverfahren dafür

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69129768T2 (de) 1990-03-30 1999-02-25 Nec Corp., Tokio/Tokyo Störungsunempfindlicher Raumdiversityempfänger
JP3100447B2 (ja) * 1992-01-10 2000-10-16 三菱電機株式会社 適応等化器および受信機
GB9315845D0 (en) * 1993-07-30 1993-09-15 Roke Manor Research Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
US5544156A (en) * 1994-04-29 1996-08-06 Telefonaktiebolaget Lm Ericsson Direct sequence CDMA coherent uplink detector
EP0715440B1 (de) * 1994-06-22 2004-06-16 NTT DoCoMo, Inc. Synchrondetektorschaltung und synchronisierungsmethode für einen digitalsignalempfänger
FI943249A7 (fi) 1994-07-07 1996-01-08 Nokia Corp Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin
FI110731B (fi) 1994-09-12 2003-03-14 Nokia Corp Menetelmä kanavan estimoimiseksi ja vastaanotin
US5697084A (en) * 1994-09-16 1997-12-09 Bose Corporation Reducing multipath fading using adaptive filtering
US5619524A (en) * 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
US6263307B1 (en) * 1995-04-19 2001-07-17 Texas Instruments Incorporated Adaptive weiner filtering using line spectral frequencies
US5584295A (en) * 1995-09-01 1996-12-17 Analogic Corporation System for measuring the period of a quasi-periodic signal
US5757846A (en) * 1996-08-30 1998-05-26 Vasudevan; Subramanian CDMA communication system and method with dual-mode receiver
WO1998011750A2 (en) 1996-09-11 1998-03-19 Yang Li Method of using fingerprints to authenticate wireless communications
US6067315A (en) * 1997-12-04 2000-05-23 Telefonaktiebolaget Lm Ericsson Method and apparatus for coherently-averaged power estimation

Also Published As

Publication number Publication date
JP2002523961A (ja) 2002-07-30
WO2000011798A1 (en) 2000-03-02
AU5513599A (en) 2000-03-14
GB9818378D0 (en) 1998-10-21
KR20010072840A (ko) 2001-07-31
CN1324522A (zh) 2001-11-28
DE69921155T2 (de) 2006-02-23
EP1105977A1 (de) 2001-06-13
US6680967B1 (en) 2004-01-20
DE69921155D1 (de) 2004-11-18
EP1105977B1 (de) 2004-10-13
CN1117434C (zh) 2003-08-06

Similar Documents

Publication Publication Date Title
ATE279815T1 (de) Adaptiver empfänger für vielfachwegausbreitung in einen kodemultiplex-vielfachzugriff- kommunikationssystem
EP1376539B8 (de) Rauschunterdrücker
NO154617C (no) Celleinndelt, mobilt radiotelefonkommunikasjonssystem.
WO2001069801A3 (en) Multi-user detection using an adaptive combination of joint detection and successive interference cancellation
TW200723721A (en) Scaling using gain factors for use in data detection for wireless code division multiple access communication systems
NO993480L (no) Fremgangsmåte for dataoverföring, samt radiosystem
WO2003029053A1 (en) Agent apparatus
DE69434310D1 (de) Wiederholungsprotokoll für drahtlose Kommunikation
SE8502319L (sv) Anleggning och system av anleggningar med berbara, snorlosa telefonapparater
FR2863812B1 (fr) Terminal bi-mode d'acces a un premier reseau de radiocommunication et un deuxieme reseau de communication local
RU2008115679A (ru) Способ и устройство обеспечения эффективной структуры канала управления в системе беспроводной связи
ATE497283T1 (de) Unterkanäle für den zufallzugriffskanal in einem zeitduplexsystem
DE60232606D1 (de) Verzögerungsregelschleifen für drahtlose kommunikationssysteme
ATE309649T1 (de) Digitales kommunikationssystem
DE60222474D1 (de) Mobilfunkkommunikationssystem zur Interferenzverminderung in Bezug auf andere Kommunikationssysteme, die ein Nachbarfrequenzband benutzen
WO2004103001A3 (en) Activation method for wireless communication system
DE69427718D1 (de) Funksender/Empfänger für Zeitduplex
MXPA04006308A (es) Arquitectura mejorada tipo rastrillo.
NO903776D0 (no) Radiotelefonisk kommunikasjonsnett.
ATE364301T1 (de) Gebührenabhängiges aktivieren und deaktivieren von sim-karten in einem mobilfunk-gateway oder mobilfunkendgerät und verfahren dafür
FR2835369B1 (fr) Station de base pour systeme de telecommunication
EP1081981A4 (de) Mobiles kommunikationssystem
ATE376286T1 (de) Informationsverbindung
WO1999040745A3 (en) A method for operating a mobile phone device in a dynamic environment wherein a particular dynamism may mandate to change a transmitting mode, and a mobile phone device for use with such method
DE69112530D1 (de) Funkverbindungsarchitektur für drahtlose Kommunikationssysteme.

Legal Events

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