ATE299623T1 - Verfahren und vorrichtung zum suboptimalen iterativen empfang für ein cdma-system mit hoher datenübertragungsrate - Google Patents

Verfahren und vorrichtung zum suboptimalen iterativen empfang für ein cdma-system mit hoher datenübertragungsrate

Info

Publication number
ATE299623T1
ATE299623T1 AT02779631T AT02779631T ATE299623T1 AT E299623 T1 ATE299623 T1 AT E299623T1 AT 02779631 T AT02779631 T AT 02779631T AT 02779631 T AT02779631 T AT 02779631T AT E299623 T1 ATE299623 T1 AT E299623T1
Authority
AT
Austria
Prior art keywords
data transfer
transfer rate
high data
cdma system
symbols
Prior art date
Application number
AT02779631T
Other languages
English (en)
Inventor
Raphael Visoz
Hatem Supcom Boujemaa
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE299623T1 publication Critical patent/ATE299623T1/de

Links

Classifications

    • 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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • 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
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03203—Trellis search techniques
    • H04L25/03235—Trellis search techniques with state-reduction using feedback filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Error Detection And Correction (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Communication Control (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
AT02779631T 2001-09-06 2002-08-09 Verfahren und vorrichtung zum suboptimalen iterativen empfang für ein cdma-system mit hoher datenübertragungsrate ATE299623T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0111549A FR2829326A1 (fr) 2001-09-06 2001-09-06 Procede et systeme de reception iterative sous optimale pour systeme de transmission haut debit cdma
PCT/FR2002/002848 WO2003021805A1 (fr) 2001-09-06 2002-08-09 Procede et systeme de reception iterative sous optimale pour systeme de transmission haut debit cdma

Publications (1)

Publication Number Publication Date
ATE299623T1 true ATE299623T1 (de) 2005-07-15

Family

ID=8867035

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02779631T ATE299623T1 (de) 2001-09-06 2002-08-09 Verfahren und vorrichtung zum suboptimalen iterativen empfang für ein cdma-system mit hoher datenübertragungsrate

Country Status (9)

Country Link
US (1) US7298778B2 (de)
EP (1) EP1423921B1 (de)
JP (1) JP3889400B2 (de)
CN (1) CN1319286C (de)
AT (1) ATE299623T1 (de)
DE (1) DE60205029T2 (de)
ES (1) ES2246414T3 (de)
FR (1) FR2829326A1 (de)
WO (1) WO2003021805A1 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US7151809B2 (en) * 2002-10-25 2006-12-19 Qualcomm, Incorporated Channel estimation and spatial processing for TDD MIMO systems
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7443909B2 (en) * 2004-12-21 2008-10-28 Nokia Corporation Weighted autocorrelation method for downlink CDMA LMMSE equalizers
US8019032B2 (en) 2005-02-04 2011-09-13 Qualcomm Incorporated Method and system for channel equalization
CA2597593C (en) * 2005-02-14 2010-07-27 Viasat, Inc. Integrated fec decoding and iterative diversity reception
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US7602838B2 (en) * 2005-12-22 2009-10-13 Telefonaktiebolaget Lm Ericsson (Publ) Linear turbo equalization using despread values
KR100816032B1 (ko) * 2007-02-13 2008-03-24 삼성전자주식회사 반복적 다중 사용자 검파를 통한 데이터 송수신 방법 및 그장치
CN101540043B (zh) * 2009-04-30 2012-05-23 南京理工大学 单幅图像复原的解析迭代快速频谱外推方法
US8976852B2 (en) * 2011-05-19 2015-03-10 Telefonaktiebolaget L M Ericsson (Publ) Inter symbol interference reduction by applying turbo equalization mode
CN104272632B (zh) * 2013-04-04 2018-06-05 华为技术有限公司 无线通信网络中的方法和节点
KR102381442B1 (ko) * 2015-01-23 2022-04-01 삼성전자주식회사 간섭 제거를 위한 전송모드 블라인드 검출 기법
US10333561B2 (en) 2015-01-26 2019-06-25 Northrop Grumman Systems Corporation Iterative equalization using non-linear models in a soft-input soft-output trellis
US10193659B2 (en) * 2015-11-27 2019-01-29 Cohda Wireless Pty Ltd. Wireless receiver

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3013763B2 (ja) * 1995-08-25 2000-02-28 日本電気株式会社 キャリア同期ユニット
US5809086A (en) * 1996-03-20 1998-09-15 Lucent Technologies Inc. Intelligent timing recovery for a broadband adaptive equalizer
US6097763A (en) * 1997-10-31 2000-08-01 Pairgain Technologies, Inc. MMSE equalizers for DMT systems with cross talk
JP3441636B2 (ja) * 1997-11-21 2003-09-02 株式会社エヌ・ティ・ティ・ドコモ チャネル推定値を求める装置および方法、受信装置ならびに伝送システム
US6724844B1 (en) * 1998-06-30 2004-04-20 Koninklijke Philips Electronics N.V. Method and device for improving DFE performance in a trellis-coded system
US6381271B1 (en) * 1998-08-17 2002-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Low complexity decision feedback sequence estimation
US6373888B1 (en) * 1998-10-09 2002-04-16 Telefonaktiebolaget Lm Ericsson (Publ) Estimated channel with variable number of taps
JP3391373B2 (ja) * 1998-10-13 2003-03-31 日本電気株式会社 適応等化器
WO2000044108A1 (fr) * 1999-01-22 2000-07-27 Mitsubishi Denki Kabushiki Kaisha Egalisateur adaptatif et procede d'egalisation adaptative
US6556634B1 (en) * 1999-02-10 2003-04-29 Ericsson, Inc. Maximum likelihood rake receiver for use in a code division, multiple access wireless communication system
US6721293B1 (en) * 1999-03-10 2004-04-13 Nokia Corporation Unsupervised adaptive chip separation filter for CDMA terminal
US6426973B1 (en) * 1999-04-29 2002-07-30 The Board Of Trustees Of The University Of Illinois Differential minimum mean squared error communication signal compensation method
JP2001111462A (ja) * 1999-10-06 2001-04-20 Nec Corp 遅延判定帰還型系列推定ダイバーシティ受信装置
US6377636B1 (en) * 1999-11-02 2002-04-23 Iospan Wirless, Inc. Method and wireless communications system using coordinated transmission and training for interference mitigation
US6690739B1 (en) * 2000-01-14 2004-02-10 Shou Yee Mui Method for intersymbol interference compensation
US6658071B1 (en) * 2000-02-14 2003-12-02 Ericsson Inc. Delayed decision feedback log-map equalizer
FR2809249B1 (fr) * 2000-05-16 2004-04-23 France Telecom Procede et systeme de detection et de decodage iteratif de symboles recus, couple a une reestimation des coefficients du canal de transmission
FR2813464B1 (fr) * 2000-08-29 2006-07-07 Mitsubishi Electric Inf Tech Methode de detection multi-utilisateur
US6975672B2 (en) * 2001-01-08 2005-12-13 Ericsson Inc. Apparatus and methods for intersymbol interference compensation in spread spectrum communications
US6643646B2 (en) * 2001-03-01 2003-11-04 Hitachi, Ltd. Analysis of massive data accumulations using patient rule induction method and on-line analytical processing

Also Published As

Publication number Publication date
JP3889400B2 (ja) 2007-03-07
DE60205029T2 (de) 2006-04-20
WO2003021805A1 (fr) 2003-03-13
US20050013348A1 (en) 2005-01-20
CN1319286C (zh) 2007-05-30
FR2829326A1 (fr) 2003-03-07
JP2005502260A (ja) 2005-01-20
EP1423921B1 (de) 2005-07-13
DE60205029D1 (de) 2005-08-18
US7298778B2 (en) 2007-11-20
CN1552129A (zh) 2004-12-01
EP1423921A1 (de) 2004-06-02
ES2246414T3 (es) 2006-02-16

Similar Documents

Publication Publication Date Title
ATE299623T1 (de) Verfahren und vorrichtung zum suboptimalen iterativen empfang für ein cdma-system mit hoher datenübertragungsrate
MY148722A (en) Pilot symbol transmission in wireless communication systems
IL147211A0 (en) Rake combining methods and apparatus using weighting factors derived from knowledge of spread spectrum signal characteristics
CN1954511A (zh) 在广义的rake接收机结构中连续的干扰消除
HK1040021A1 (zh) 用於發送和接收可變速率數據的方法和裝置
KR20050030976A (ko) 이동유닛의 속도에 기초하여 통신 필터의 동작을 적응시키기 위한 방법 및 장치
RU96122871A (ru) Когерентный приемник системы многостанционного доступа с кодовым разделением каналов с последовательностью для непосредственной модуляции несущей линии связи земля-летательный аппарат
ATE471002T1 (de) Cdma empfang-übertragungstechniken für funksysteme mit mehrfacheingängen und mehrfachausgängen (mimo)
WO2003026145A3 (en) Apparatus and method for intersymbol interference compensation in spread spectrum communications systems
IL170333A (en) Channel estimation of a receiver multipath cdma signal
AR044663A1 (es) Metodo y aparato para estimar desplazamiento de frecuencia de portadora y tasa de desvanecimiento utilizando modelacion de canal autoregresivo
CN102026360A (zh) 在移动通信系统中传送和接收反向业务信道的设备和方法
DK2086147T3 (da) Simpel blok til transmissionsvariation i tid og rum ved brug af flere spredningskoder
RU2008132421A (ru) Мобильная станция, базовая станция, система и способ связи
HK1092607A1 (en) Data demodulation for a cdma communication system cdma
JP4230773B2 (ja) 符号分割多元接続通信用システム
GB2363553A (en) Channel estimation for a CDMA system using pre-defined symbols in addition to pilot symbols
ATE421805T1 (de) Prozessor une verfahren zur gewichtsdetektion in einem w-cdma system mit geschlossener schleife und mehrwegdiversität
KR100778344B1 (ko) 다중 코드 부호화된 배직교 펄스 위치 변조 방식에 기반한초광대역 임펄스 통신 장치 및 방법
DE60134137D1 (de) Verbesserte multiniveau sequenzen für cdma-datenübertragung
CN100578947C (zh) 一种基于多重m维并行调制通信方式的发射机
HK1094841A1 (en) Method and apparatus for removing code aliases when using short synchronization codes
KR100716722B1 (ko) 초광대역 통신 장치 및 방법
Malekmohammadi et al. Absolute polar duty cycle division multiplexing (APDCDM); technique for wireless communications
Zhang et al. A novel M-ary differential underwater acoustic direct sequence spread spectrum communication system

Legal Events

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