SE9302204L - Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare - Google Patents

Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare

Info

Publication number
SE9302204L
SE9302204L SE9302204A SE9302204A SE9302204L SE 9302204 L SE9302204 L SE 9302204L SE 9302204 A SE9302204 A SE 9302204A SE 9302204 A SE9302204 A SE 9302204A SE 9302204 L SE9302204 L SE 9302204L
Authority
SE
Sweden
Prior art keywords
signal
channel
channel estimate
prefilter
estimated
Prior art date
Application number
SE9302204A
Other languages
Unknown language ( )
English (en)
Other versions
SE513657C2 (sv
SE9302204D0 (sv
Inventor
Karin Jamal
Bjoern Gudmundson
Lars Gustav Larsson
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9302204A priority Critical patent/SE513657C2/sv
Publication of SE9302204D0 publication Critical patent/SE9302204D0/sv
Priority to TW083105614A priority patent/TW260852B/zh
Priority to CA002478539A priority patent/CA2478539C/en
Priority to CA002126604A priority patent/CA2126604C/en
Priority to MX9404754A priority patent/MX9404754A/es
Priority to US08/264,491 priority patent/US5533067A/en
Priority to UY23796A priority patent/UY23796A1/es
Priority to KR1019940014596A priority patent/KR950002303A/ko
Priority to CN94108919A priority patent/CN1041985C/zh
Publication of SE9302204L publication Critical patent/SE9302204L/sv
Priority to US08/540,098 priority patent/US5727032A/en
Priority to CN98104340A priority patent/CN1191353A/zh
Priority to CN98104341A priority patent/CN1191351A/zh
Publication of SE513657C2 publication Critical patent/SE513657C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • 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
    • 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
    • H04L25/03254—Operation with other circuitry for removing intersymbol interference
    • H04L25/03261—Operation with other circuitry for removing intersymbol interference with impulse-response shortening filters
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Error Detection And Correction (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Noise Elimination (AREA)
SE9302204A 1993-06-24 1993-06-24 Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare SE513657C2 (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9302204A SE513657C2 (sv) 1993-06-24 1993-06-24 Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
TW083105614A TW260852B (sv) 1993-06-24 1994-06-21
CA002478539A CA2478539C (en) 1993-06-24 1994-06-23 A method and device for estimating transmitted signals in a receiver in digital signal transmission operations
CA002126604A CA2126604C (en) 1993-06-24 1994-06-23 Method and device for estimating transmitted signals in a receiver in digital signal transmission operations
MX9404754A MX9404754A (es) 1993-06-24 1994-06-23 Metodo y dispositivo para estimar las señales transmitidas en un receptoren operaciones de transmision de señales digitales.
US08/264,491 US5533067A (en) 1993-06-24 1994-06-23 Method and device for estimating transmitted signals in a receiver in digital signal transmission operations
CN94108919A CN1041985C (zh) 1993-06-24 1994-06-24 在数字信号传输操作中估计所传信号的装置和方法
UY23796A UY23796A1 (es) 1993-06-24 1994-06-24 Un procedimiento para la transmision de señales digitales a traves de un canal para estimar en un receptor simbolos transmitidos de una señal transmitida de radio
KR1019940014596A KR950002303A (ko) 1993-06-24 1994-06-24 디지탈 신호 전송 동작에 있어서 수신기내 전송된 신호 추정을 위한 방법 및 장치
US08/540,098 US5727032A (en) 1993-06-24 1995-10-06 Method and device for estimating transmitted signals in a receiver in digital signal transmission operations
CN98104340A CN1191353A (zh) 1993-06-24 1998-01-22 在数字信号传输操作中在接收机内估计所传信号的装置和方法
CN98104341A CN1191351A (zh) 1993-06-24 1998-01-22 在数字信号传输操作中在接收机内估计所传信号的装置和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302204A SE513657C2 (sv) 1993-06-24 1993-06-24 Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare

Publications (3)

Publication Number Publication Date
SE9302204D0 SE9302204D0 (sv) 1993-06-24
SE9302204L true SE9302204L (sv) 1994-12-25
SE513657C2 SE513657C2 (sv) 2000-10-16

Family

ID=20390418

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9302204A SE513657C2 (sv) 1993-06-24 1993-06-24 Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare

Country Status (8)

Country Link
US (2) US5533067A (sv)
KR (1) KR950002303A (sv)
CN (3) CN1041985C (sv)
CA (2) CA2478539C (sv)
MX (1) MX9404754A (sv)
SE (1) SE513657C2 (sv)
TW (1) TW260852B (sv)
UY (1) UY23796A1 (sv)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI102797B (sv) * 1994-10-07 1999-02-15 Nokia Mobile Phones Ltd Ett signaldetekteringsförfarande i en mottagare för ett TDMA-mobilradi osystem samt en mottagare för utföring av förfarandet
SE503522C2 (sv) * 1994-10-31 1996-07-01 Ericsson Telefon Ab L M Förfarande och anordning för kanalestimering
US5751766A (en) * 1995-04-27 1998-05-12 Applied Signal Technology, Inc. Non-invasive digital communications test system
US6233274B1 (en) 1995-04-27 2001-05-15 Wavetek Wandel Goltermann Non-invasive digital cable test system
FI100017B (sv) 1995-08-29 1997-08-15 Nokia Telecommunications Oy Förfarande för estimering av kvaliteten på en förbindelse och mottagar e
NL1001761C2 (nl) * 1995-11-28 1997-05-30 Ronald Barend Van Santbrink Stelsel voor contactloze data-uitwisseling tussen een lees- en schrijf- eenheid en één of meer informatiedragers.
US5757855A (en) * 1995-11-29 1998-05-26 David Sarnoff Research Center, Inc. Data detection for partial response channels
US5978423A (en) * 1996-02-02 1999-11-02 Telefoanktiebolaget Lm Ericsson Method and arrangement of signal tracking and a rake-receiver utilizing the arrangement
DE19604772C2 (de) * 1996-02-09 2002-08-29 Siemens Ag Verfahren zur Parametrierung einer Empfangseinrichtung, sowie entsprechende Empfangseinrichtung und Funkstation
US5694424A (en) * 1996-03-15 1997-12-02 Ariyavisitakul; Sirikiat Pre-cancelling postcursors in decision feedback equalization
US5838739A (en) * 1996-03-29 1998-11-17 Ericsson Inc. Channel estimator circuitry, and associated method, for a digital communication system
US5815529A (en) * 1996-04-04 1998-09-29 Lucent Technologies Inc. Transmission system for digital audio broadcasting that incorporates a rotator in the transmitter
EP0800285B1 (de) * 1996-04-04 2005-12-14 Siemens Aktiengesellschaft Verfahren zur Parametrierung einer Empfangseinrichtung, sowie entsprechende Empfangseinrichtung und Funkstation
JP3452735B2 (ja) * 1996-08-09 2003-09-29 株式会社鷹山 スペクトル拡散通信のパスダイバシティ受信方法および装置
US5881073A (en) * 1996-09-20 1999-03-09 Ericsson Inc. Convolutional decoding with the ending state decided by CRC bits placed inside multiple coding bursts
US5848108A (en) * 1996-11-29 1998-12-08 Northern Telecom Limited Selective filtering for co-channel interference reduction
US5889827A (en) 1996-12-12 1999-03-30 Ericsson Inc. Method and apparatus for digital symbol detection using medium response estimates
US5940439A (en) * 1997-02-26 1999-08-17 Motorola Inc. Method and apparatus for adaptive rate communication system
JPH10322408A (ja) * 1997-03-19 1998-12-04 Sony Corp 受信装置及び信号受信方法
US6185251B1 (en) * 1998-03-27 2001-02-06 Telefonaktiebolaget Lm Ericsson Equalizer for use in multi-carrier modulation systems
US6771722B2 (en) * 1998-07-31 2004-08-03 Motorola, Inc. Channel estimator and method therefor
US6304618B1 (en) * 1998-08-31 2001-10-16 Ericsson Inc. Methods and systems for reducing co-channel interference using multiple timings for a received signal
EP0994575A1 (en) * 1998-10-12 2000-04-19 Hewlett-Packard Company Extraction of primary and co-channel signals using propagation path metrics
US6574293B1 (en) * 1998-10-28 2003-06-03 Ericsson Inc. Receivers and methods for reducing interference in radio communications
US6122015A (en) * 1998-12-07 2000-09-19 General Electric Company Method and apparatus for filtering digital television signals
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
US6526104B1 (en) * 1999-03-31 2003-02-25 International Business Machines Corporation Maximum likelihood detection with programmed coefficients
US6424686B1 (en) * 1999-03-31 2002-07-23 International Business Machines Corporation Maximum likelihood detection with difference metrics and programmed coefficients
US6853689B1 (en) * 1999-07-15 2005-02-08 Telefonaktiebolaget Lm Ericsson Method and apparatus for channel estimation with transmit diversity
US6151358A (en) * 1999-08-11 2000-11-21 Motorola, Inc. Method and apparatus, and computer program for producing filter coefficients for equalizers
US6831944B1 (en) * 1999-09-14 2004-12-14 Interdigital Technology Corporation Reduced computation in joint detection
US6559894B2 (en) * 1999-10-21 2003-05-06 Digeo, Inc. Block-adaptive equalization using partial decision feedback in digital broadcast communications
US6580768B1 (en) * 1999-11-09 2003-06-17 International Business Machines Corporation Adaptive maximum likelihood detection
FI20000820A (sv) * 2000-04-06 2001-10-07 Nokia Networks Oy Optimering av kanalekvalisator
US6650702B1 (en) * 2000-05-15 2003-11-18 Lockheed Martin Corp. Blind initialization of decision feedback equalizer using an antenna array
EP1287635B1 (en) * 2000-06-07 2005-11-23 Siemens Mobile Communications S.p.A. Method for estimating the symbol timing phase at the reception of data signals
JP3844951B2 (ja) * 2000-09-21 2006-11-15 三菱電機株式会社 受信機および適応等化処理方法
US6970520B1 (en) 2000-11-13 2005-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for accumulating metrics generated by a sequence estimation algorithm
FI113116B (sv) * 2000-12-21 2004-02-27 Nokia Corp Förfarande för utföring av kanalkorrektion, mottagare, kanalutjämnare, och trådlöst kommunikationsmedel
US20020172166A1 (en) * 2001-03-22 2002-11-21 Huseyin Arslan Communications system and method for measuring short-term and long-term channel characteristics
US7340016B2 (en) * 2001-05-11 2008-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Equalizers for multi-branch receiver
EP1274193A1 (en) * 2001-07-04 2003-01-08 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Method and device for providing timing information in a wireless communication system
KR100393192B1 (ko) * 2001-07-11 2003-07-31 삼성전자주식회사 시변 채널에 적합한 신호 수신 장치 및 방법
US7236548B2 (en) * 2001-12-13 2007-06-26 Koninklijke Philips Electronics N.V. Bit level diversity combining for COFDM system
US7474994B2 (en) * 2001-12-14 2009-01-06 Qualcomm Incorporated System and method for wireless signal time of arrival
US7394877B2 (en) * 2001-12-20 2008-07-01 Texas Instruments Incorporated Low-power packet detection using decimated correlation
GB2386038A (en) 2002-02-27 2003-09-03 Motorola Inc Channel estimation in a radio receiver
FI20021288A0 (sv) * 2002-06-28 2002-06-28 Nokia Corp Förfarande och anordning för datakommunikation och basstation
US7035329B2 (en) * 2002-07-18 2006-04-25 Qualcomm, Inc. Soft slicer in a hybrid decision feedback equalizer
US7287412B2 (en) * 2003-06-03 2007-10-30 Nano-Proprietary, Inc. Method and apparatus for sensing hydrogen gas
EP1401164A1 (en) * 2002-09-19 2004-03-24 Telefonaktiebolaget Lm Ericsson Bandwith estimation and adaptive filtering
WO2004040869A1 (en) * 2002-10-30 2004-05-13 Koninklijke Philips Electronics N.V. Methods for channel estimation in the presence of transmit beamforming
FI20030777A0 (sv) * 2003-05-22 2003-05-22 Nokia Corp Bestämning av ordning och sändargrenar för diversitetssändning
US20070240491A1 (en) * 2003-06-03 2007-10-18 Nano-Proprietary, Inc. Hydrogen Sensor
JP2005012508A (ja) * 2003-06-19 2005-01-13 Alpine Electronics Inc リモコン誤動作防止装置、リモコンの誤動作防止機能を備えた電子機器およびリモコン送信機、リモコンの誤動作防止方法
TWI260645B (en) * 2003-06-19 2006-08-21 Samsung Electronics Co Ltd Apparatus and method for detecting binary data
EP1496512A1 (en) * 2003-07-09 2005-01-12 Deutsche Thomson-Brandt Gmbh Method for adaptive bit recovery
CN100428640C (zh) * 2004-04-07 2008-10-22 明基电通股份有限公司 滤波器、均衡器及决策回授等化方法
EP1587234A1 (en) * 2004-04-14 2005-10-19 Deutsche Thomson-Brandt Gmbh Adaptive viterbi detector
US7187320B1 (en) 2004-08-27 2007-03-06 Lockheed Martin Corporation Matched maneuver detector
US7881390B2 (en) 2004-12-01 2011-02-01 Intel Corporation Increased discrete point processing in an OFDM communication system
GB0502910D0 (en) * 2005-02-11 2005-03-16 Ttp Communications Ltd Conditioning equaliser input
WO2007019244A2 (en) * 2005-08-03 2007-02-15 Nano-Proprietary, Inc. Continuous range hydrogen sensor
CN100489716C (zh) * 2005-09-21 2009-05-20 国际商业机器公司 处理度量流数据的方法及采样设备
US8831074B2 (en) 2005-10-03 2014-09-09 Clariphy Communications, Inc. High-speed receiver architecture
US7613260B2 (en) 2005-11-21 2009-11-03 Provigent Ltd Modem control using cross-polarization interference estimation
US7796708B2 (en) * 2006-03-29 2010-09-14 Provigent Ltd. Adaptive receiver loops with weighted decision-directed error
US7643512B2 (en) 2006-06-29 2010-01-05 Provigent Ltd. Cascaded links with adaptive coding and modulation
JP4920329B2 (ja) * 2006-07-14 2012-04-18 シャープ株式会社 復調回路、ｉｃ、および通信機
KR100808949B1 (ko) * 2006-08-12 2008-03-04 삼성전자주식회사 Ｌｃｉｃ-ｄｆｅ를 이용한 채널 추정 방법 및 그 장치
EP1892908A1 (en) 2006-08-24 2008-02-27 TTPCOM Limited Interference cancellation receiver and method
US7839952B2 (en) * 2006-12-05 2010-11-23 Provigent Ltd Data rate coordination in protected variable-rate links
US7720136B2 (en) * 2006-12-26 2010-05-18 Provigent Ltd Adaptive coding and modulation based on link performance prediction
US8315574B2 (en) 2007-04-13 2012-11-20 Broadcom Corporation Management of variable-rate communication links
US7821938B2 (en) * 2007-04-20 2010-10-26 Provigent Ltd. Adaptive coding and modulation for synchronous connections
US8001445B2 (en) * 2007-08-13 2011-08-16 Provigent Ltd. Protected communication link with improved protection indication
US8040985B2 (en) 2007-10-09 2011-10-18 Provigent Ltd Decoding of forward error correction codes in the presence of phase noise
WO2010011500A1 (en) * 2008-07-25 2010-01-28 Smith International, Inc. Pdc bit having split blades
JP6198665B2 (ja) * 2013-07-05 2017-09-20 三菱電機株式会社 受信装置及び受信方法
US10447352B2 (en) * 2016-08-11 2019-10-15 National Instruments Corporation UE-aided channel reciprocity compensation for radio access in MIMO wireless communication systems

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885757A (en) * 1987-06-01 1989-12-05 Texas Instruments Incorporated Digital adaptive receiver employing maximum-likelihood sequence estimation with neural networks
IT1230284B (it) * 1989-06-15 1991-10-18 Italtel Spa Procedimento e dispositivo per la ricezione di segnali in sistemi radiomobili digitali.
SE464902B (sv) * 1989-10-24 1991-06-24 Ericsson Telefon Ab L M Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet
DE4001592A1 (de) * 1989-10-25 1991-05-02 Philips Patentverwaltung Empfaenger fuer digitales uebertragungssystem
US5228057A (en) * 1989-11-15 1993-07-13 Telefonaktiebolaget L M Ericsson Method of determining sampling time points
SE465245B (sv) * 1989-12-22 1991-08-12 Ericsson Telefon Ab L M Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser
EP0449327B1 (en) * 1990-03-30 1998-07-15 Nec Corporation Noise-immune space diversity receiver
US5251233A (en) * 1990-12-20 1993-10-05 Motorola, Inc. Apparatus and method for equalizing a corrupted signal in a receiver
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
US5319677A (en) * 1992-05-12 1994-06-07 Hughes Aircraft Company Diversity combiner with MLSE for digital cellular radio

Also Published As

Publication number Publication date
CN1041985C (zh) 1999-02-03
CA2478539A1 (en) 1994-12-25
MX9404754A (es) 1995-01-31
CN1110029A (zh) 1995-10-11
CN1191351A (zh) 1998-08-26
UY23796A1 (es) 1994-07-22
US5727032A (en) 1998-03-10
CA2478539C (en) 2006-04-18
KR950002303A (ko) 1995-01-04
US5533067A (en) 1996-07-02
SE513657C2 (sv) 2000-10-16
CA2126604C (en) 2005-04-12
CN1191353A (zh) 1998-08-26
SE9302204D0 (sv) 1993-06-24
CA2126604A1 (en) 1994-12-25
TW260852B (sv) 1995-10-21

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