CN1316754C - Rake接收机 - Google Patents

Rake接收机 Download PDF

Info

Publication number
CN1316754C
CN1316754C CNB02160522XA CN02160522A CN1316754C CN 1316754 C CN1316754 C CN 1316754C CN B02160522X A CNB02160522X A CN B02160522XA CN 02160522 A CN02160522 A CN 02160522A CN 1316754 C CN1316754 C CN 1316754C
Authority
CN
China
Prior art keywords
signal
dwilsp
estimation
algorithm
time
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 - Fee Related
Application number
CNB02160522XA
Other languages
English (en)
Chinese (zh)
Other versions
CN1516353A (zh
Inventor
S·安德森
P·佩尔英
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of CN1516353A publication Critical patent/CN1516353A/zh
Application granted granted Critical
Publication of CN1316754C publication Critical patent/CN1316754C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • 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
    • H04B1/7073—Synchronisation aspects
    • 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
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/0328—Arrangements for operating in conjunction with other apparatus with interference cancellation circuitry
    • 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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709727—GRAKE type RAKE receivers
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03401—PSK

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
CNB02160522XA 1997-03-27 1998-03-20 Rake接收机 Expired - Fee Related CN1316754C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/827169 1997-03-27
US08/827,169 US5937014A (en) 1997-03-27 1997-03-27 Self-synchronizing equalization techniques and systems

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CNB988054493A Division CN1211945C (zh) 1997-03-27 1998-03-20 处理由多个天线振子接收的无线电信号的系统和方法

Publications (2)

Publication Number Publication Date
CN1516353A CN1516353A (zh) 2004-07-28
CN1316754C true CN1316754C (zh) 2007-05-16

Family

ID=25248487

Family Applications (2)

Application Number Title Priority Date Filing Date
CNB02160522XA Expired - Fee Related CN1316754C (zh) 1997-03-27 1998-03-20 Rake接收机
CNB988054493A Expired - Fee Related CN1211945C (zh) 1997-03-27 1998-03-20 处理由多个天线振子接收的无线电信号的系统和方法

Family Applications After (1)

Application Number Title Priority Date Filing Date
CNB988054493A Expired - Fee Related CN1211945C (zh) 1997-03-27 1998-03-20 处理由多个天线振子接收的无线电信号的系统和方法

Country Status (9)

Country Link
US (2) US5937014A (enExample)
EP (1) EP0970569B1 (enExample)
JP (1) JP4409634B2 (enExample)
CN (2) CN1316754C (enExample)
AU (1) AU6753798A (enExample)
CA (1) CA2285431C (enExample)
DE (1) DE69835349T2 (enExample)
TW (1) TW386325B (enExample)
WO (1) WO1998044655A2 (enExample)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6084929A (en) * 1996-12-12 2000-07-04 Ericsson Inc. Method and apparatus for channel tracking
FR2766320B1 (fr) * 1997-07-15 1999-10-15 Thomson Csf Procede et dispositif d'analyse des interferences dans un systeme de radiocommunication cellulaire
SG77607A1 (en) * 1997-08-26 2001-01-16 Univ Singapore A multi-user code division multiple access receiver
BR9812816A (pt) * 1997-09-15 2000-08-08 Adaptive Telecom Inc Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma
US6167039A (en) * 1997-12-17 2000-12-26 Telefonaktiebolget Lm Ericsson Mobile station having plural antenna elements and interference suppression
FI108181B (fi) * 1998-02-13 2001-11-30 Nokia Mobile Phones Ltd Tehonsäätömenetelmä
DE19806616A1 (de) * 1998-02-18 1999-08-19 Cit Alcatel Verfahren und Telekommunikationseinheit zum Aufbau einer Telekommunikationsverbindung in sich überlagernden digitalen Funknetzen
US6130894A (en) * 1998-03-09 2000-10-10 Broadcom Homenetworking, Inc. Off-line broadband network interface
DK1068704T3 (da) 1998-04-03 2012-09-17 Tellabs Operations Inc Filter til impulssvarforkortning, med yderligere spektrale begrænsninger, til multibærebølgeoverførsel
US7440498B2 (en) 2002-12-17 2008-10-21 Tellabs Operations, Inc. Time domain equalization for discrete multi-tone systems
EP0953850B1 (en) * 1998-04-03 2005-03-16 Lucent Technologies Inc. Direction determination in cellular mobile communications network
BR9901493A (pt) * 1998-04-30 2000-01-11 Lucent Technologies Inc Avaliação iterativa de canal.
AT407933B (de) * 1998-06-09 2001-07-25 Juha Dipl Ing Laurila Verfahren zur trennung und zur detektion von gleichkanal-signalen
US6795424B1 (en) * 1998-06-30 2004-09-21 Tellabs Operations, Inc. Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
GB2339120B (en) * 1998-06-30 2003-03-19 Nec Technologies Channel estimation device for digital telecommunications stations
DE69832483T2 (de) * 1998-08-19 2006-06-08 Siemens Ag Spreizspektrumempfänger zur Verminderung von Nachbarsymbolstörungen
US6163524A (en) * 1998-10-19 2000-12-19 Telefonaktiebolaget Lm Ericsson (Publ) Code allocation in CDMA
US6304750B1 (en) * 1998-11-06 2001-10-16 Lucent Technologies Inc. Space-time diversity receiver for wireless systems
GB9900340D0 (en) * 1999-01-09 1999-02-24 Motorola Ltd A method of and system for estimating a time of arrival of a radio signal
US6470044B1 (en) * 1999-01-15 2002-10-22 Sharp Laboratories Of America, Inc. Computationally parsimonious forward link receiver for DS-CDMA systems and method for same
JP3149868B2 (ja) * 1999-02-24 2001-03-26 日本電気株式会社 Ｃｄｍａ受信装置の受信パス・サーチ方法およびサーチャー回路
US7027537B1 (en) * 1999-03-05 2006-04-11 The Board Of Trustees Of The Leland Stanford Junior University Iterative multi-user detection
US6687317B1 (en) 1999-04-16 2004-02-03 Koninklijke Philips Electronics N.V. Method for correlation directed echo cancellation and channel equalization for the digital transmission link in vestigial side band amplitude modulation
DE19920819C1 (de) 1999-05-06 2000-10-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Schätzung von gedächtnisbehafteten Übertragungskanälen
US6765894B1 (en) * 1999-07-05 2004-07-20 Matsushita Electric Industrial Co, Ltd. Communication terminal apparatus and base station apparatus
US6628706B1 (en) * 1999-12-06 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for transforming a channel estimate
US7038681B2 (en) * 2000-03-29 2006-05-02 Sourceprose Corporation System and method for georeferencing maps
WO2001073690A2 (en) * 2000-03-29 2001-10-04 Provar Inc. System and method for georeferencing digital raster maps
US7148898B1 (en) * 2000-03-29 2006-12-12 Sourceprose Corporation System and method for synchronizing raster and vector map images
EP1150441B1 (en) * 2000-04-25 2014-03-26 Alcatel Lucent Method and receiver for combining at least two received signals of a telecommunication system
US6625454B1 (en) 2000-08-04 2003-09-23 Wireless Valley Communications, Inc. Method and system for designing or deploying a communications network which considers frequency dependent effects
US6507604B1 (en) * 2000-08-31 2003-01-14 Wen-Yi Kuo Rake receiver for CDMA wireless communications
US6973622B1 (en) * 2000-09-25 2005-12-06 Wireless Valley Communications, Inc. System and method for design, tracking, measurement, prediction and optimization of data communication networks
US6975672B2 (en) * 2001-01-08 2005-12-13 Ericsson Inc. Apparatus and methods for intersymbol interference compensation in spread spectrum communications
US20020136331A1 (en) * 2001-01-24 2002-09-26 Leif Wilhelmsson Method and apparatus for performing channel estimation with a limiting receiver
US7751469B2 (en) * 2001-02-20 2010-07-06 Massachusetts Institute Of Technology Correlation shaping matched filter receiver
US7636403B2 (en) * 2001-02-20 2009-12-22 Massachusetts Institute Of Technology Correlation shaping multi-signature receiver
US20020181407A1 (en) * 2001-03-28 2002-12-05 Anders Khullar Link quality control by using time dispersion information
US6483459B1 (en) * 2001-04-05 2002-11-19 Neoreach, Inc. Direction of arrival angle tracking algorithm for smart antennas
US6944460B2 (en) * 2001-06-07 2005-09-13 Telefonaktiebolaget L M Ericsson (Publ) System and method for link adaptation in communication systems
US7440489B2 (en) 2001-08-07 2008-10-21 Ericsson Inc. Method and apparatus for selective demodulation and decoding of communications signals
EP1284562A1 (de) 2001-08-16 2003-02-19 Alcatel Verfahren, Empfänger und Empfangsstation zum Entzerren eines Empfangssignals
GB0124952D0 (en) * 2001-10-17 2001-12-05 Nokia Corp A receiver and a receiving method
US6844854B2 (en) * 2002-04-05 2005-01-18 Myers & Johnson, Inc. Interferometric antenna array for wireless devices
US6947403B2 (en) * 2003-06-27 2005-09-20 Nokia Corporation Advanced whitener-rake receiver for WCDMA terminal
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
WO2007100186A1 (en) 2006-03-02 2007-09-07 Lg Electronics Inc. Digital broadcasting system and method of processing data
FI20065838A0 (fi) * 2006-12-21 2006-12-21 Nokia Corp Radiovastaanotinalgoritmi
US20110080526A1 (en) * 2009-10-01 2011-04-07 Legend Silicon Corp. multiple tuner terrestrial dtv receiver for indoor and mobile users
US8743658B2 (en) * 2011-04-29 2014-06-03 Siemens Corporation Systems and methods for blind localization of correlated sources
US9401826B2 (en) * 2012-02-17 2016-07-26 Sony Corporation Signal processing unit employing a blind channel estimation algorithm and method of operating a receiver apparatus
US9660743B1 (en) * 2014-08-27 2017-05-23 Marvell International Ltd. Channel estimation by searching over channel response candidates having dominant components
EP3994867A4 (en) 2019-07-03 2023-07-26 The Board Of Trustees Of The University Of Illinois Separating space-time signals with moving and asynchronous arrays
TWI793486B (zh) * 2020-12-28 2023-02-21 智原科技股份有限公司 通訊裝置中的回音消除裝置及其回音消除方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237586A (en) * 1992-03-25 1993-08-17 Ericsson-Ge Mobile Communications Holding, Inc. Rake receiver with selective ray combining
WO1994018752A1 (en) * 1993-02-01 1994-08-18 Motorola, Inc. Method and apparatus of adaptive maximum likelihood sequence estimation using a variable convergence step size
EP0642243A1 (en) * 1992-06-25 1995-03-08 Roke Manor Research Limited Rake receiver for CDMA system
EP0654825A1 (fr) * 1993-11-17 1995-05-24 Commissariat A L'energie Atomique Dispositif de détection de rayonnement, à éléments de détection aboutés, et procédé de fabrication de ce dispositif
US5488635A (en) * 1993-10-29 1996-01-30 General Electric Company Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation
US5596607A (en) * 1992-06-23 1997-01-21 Telefonaktiebolaget Lm Ericsson Method and an arrangement of estimating transmitted symbols at a receiver in digital signal transmission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5862192A (en) * 1991-12-31 1999-01-19 Lucent Technologies Inc. Methods and apparatus for equalization and decoding of digital communications channels using antenna diversity
JP2570967B2 (ja) * 1993-07-08 1997-01-16 日本電気株式会社 Ｃｄｍａ受信機
EP0654925B1 (de) * 1993-11-23 2001-05-16 Ascom Systec AG Verfahren und Vorrichtung zur Nachführung der Stossantwort eines frequenzselektiven Kanals
FI943249L (fi) * 1994-07-07 1996-01-08 Nokia Mobile Phones Ltd Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin
JP3095065B2 (ja) * 1997-09-11 2000-10-03 日本電気株式会社 スペクトル拡散信号のレイク受信方法およびレイク受信装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237586A (en) * 1992-03-25 1993-08-17 Ericsson-Ge Mobile Communications Holding, Inc. Rake receiver with selective ray combining
US5596607A (en) * 1992-06-23 1997-01-21 Telefonaktiebolaget Lm Ericsson Method and an arrangement of estimating transmitted symbols at a receiver in digital signal transmission
EP0642243A1 (en) * 1992-06-25 1995-03-08 Roke Manor Research Limited Rake receiver for CDMA system
WO1994018752A1 (en) * 1993-02-01 1994-08-18 Motorola, Inc. Method and apparatus of adaptive maximum likelihood sequence estimation using a variable convergence step size
US5488635A (en) * 1993-10-29 1996-01-30 General Electric Company Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation
EP0654825A1 (fr) * 1993-11-17 1995-05-24 Commissariat A L'energie Atomique Dispositif de détection de rayonnement, à éléments de détection aboutés, et procédé de fabrication de ce dispositif

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"An adaptive maximum-likelihood sequence estimationreceiver with dual diversity combining/selection" LIU Q ET AL,PIMRC '92. THE THIRD IEEE INTERNATIONAL SYMPOSIUM ON *
"SPATIO-TEMPORAL CHANNELESTIMATION TECHNIQUES FOR MULTIPLE ACCESSSPREAD SPECTRUM SYSTEMS WITH ANTENNAARRAYS" KHALAJ B H ET AL,COMMUNICATIONS.GATEWAY TO GLOBALIZATION.,Vol.3 1995 *

Also Published As

Publication number Publication date
TW386325B (en) 2000-04-01
DE69835349T2 (de) 2007-08-23
EP0970569B1 (en) 2006-07-26
DE69835349D1 (de) 2006-09-07
JP2001517399A (ja) 2001-10-02
CN1257626A (zh) 2000-06-21
WO1998044655A2 (en) 1998-10-08
EP0970569A2 (en) 2000-01-12
CN1211945C (zh) 2005-07-20
US5937014A (en) 1999-08-10
US6148023A (en) 2000-11-14
AU6753798A (en) 1998-10-22
WO1998044655A3 (en) 1999-03-11
CA2285431A1 (en) 1998-10-08
CN1516353A (zh) 2004-07-28
CA2285431C (en) 2006-04-11
JP4409634B2 (ja) 2010-02-03

Similar Documents

Publication Publication Date Title
EP0970569B1 (en) Self-synchronizing equalization techniques and systems
CN100388641C (zh) 在传输信道之间确定增益偏置的方法
CN100568784C (zh) 利用多时隙平均内插进行信道估计的方法和系统
CN100444535C (zh) 自适应天线系统的参数估计
US20030142762A1 (en) Wireless receiver method and apparatus using space-cover-time equalization
CN102227098B (zh) 一种多模mimo-scfde自适应传输系统频域承载点选取方法
US6507604B1 (en) Rake receiver for CDMA wireless communications
US7864880B2 (en) Blind synchronization and demodulation
CN106559366A (zh) 基于多径衰落信道的多径衰落信号分集合并接收方法
US8259854B2 (en) Channel estimation using common and dedicated pilots
US7149255B2 (en) Method to increase the bit rate in a communications system
CN101675598B (zh) 规约格解调方法和装置
US7978796B2 (en) Recovering symbols in a communication receiver
CN101147371B (zh) 信道估计的方法和设备
Farsakh et al. Data detection and channel allocation on the uplink of an SDMA mobile radio system
Chiani et al. Improved performance in TD-CDMA mobile radio system by optimizing energy partition in channel estimation
US20020122508A1 (en) Signal processing method and device for a spread spectrum radio communication receiver
CN1983839A (zh) 一种计算各径加权值的方法、装置及rake接收机
CN101340206A (zh) 判决反馈多小区联合信道估计方法及装置
Paulraj Smart antennas for battlefield multimedia wireless networks with dual use applications
CHERN et al. Adaptive RAKE receiver with sliding window linearly constrained RLS algorithm for multipath fading DS-SS CDMA system
MXPA99008836A (en) Self-synchronizing equalization techniques and systems
CN117896213A (zh) 一种基于干扰环境下的信道估计方法
DUNNA Near-Optimal Channel Estimation in Fast Fading Spatially Modulated Links
Li et al. Channel estimation and equalization of fast time-varying fading multipath channel

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070516

Termination date: 20150320

EXPY Termination of patent right or utility model