SE465245B - Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser - Google Patents

Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser

Info

Publication number
SE465245B
SE465245B SE8904327A SE8904327A SE465245B SE 465245 B SE465245 B SE 465245B SE 8904327 A SE8904327 A SE 8904327A SE 8904327 A SE8904327 A SE 8904327A SE 465245 B SE465245 B SE 465245B
Authority
SE
Sweden
Prior art keywords
channel
channel estimate
signal
energy values
fading
Prior art date
Application number
SE8904327A
Other languages
English (en)
Swedish (sv)
Other versions
SE8904327D0 (sv
SE8904327L (sv
Inventor
L G 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
Publication of SE8904327D0 publication Critical patent/SE8904327D0/xx
Priority to SE8904327A priority Critical patent/SE465245B/sv
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to JP50189291A priority patent/JP3165437B2/ja
Priority to EP90850383A priority patent/EP0434651B1/de
Priority to CA002046316A priority patent/CA2046316C/en
Priority to DE69006586T priority patent/DE69006586T2/de
Priority to PCT/SE1990/000764 priority patent/WO1991010296A1/en
Priority to AU69728/91A priority patent/AU630537B2/en
Priority to NZ236235A priority patent/NZ236235A/xx
Priority to MYPI90002120A priority patent/MY107752A/en
Priority to US07/620,710 priority patent/US5204878A/en
Publication of SE8904327L publication Critical patent/SE8904327L/xx
Priority to KR91700873A priority patent/KR970007616B1/ko
Publication of SE465245B publication Critical patent/SE465245B/sv
Priority to SG92594A priority patent/SG92594G/en
Priority to HK85494A priority patent/HK85494A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
SE8904327A 1989-12-22 1989-12-22 Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser SE465245B (sv)

Priority Applications (13)

Application Number Priority Date Filing Date Title
SE8904327A SE465245B (sv) 1989-12-22 1989-12-22 Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser
JP50189291A JP3165437B2 (ja) 1989-12-22 1990-11-22 記号シーケンス送信時にフェージング・チャネル用見積りを効果的にする方法
EP90850383A EP0434651B1 (de) 1989-12-22 1990-11-22 Verfahren zur Schätzung eines Kanals, der von einem "Fading" unterzogen wird, bei Übertragung von Symbolsequenzen
CA002046316A CA2046316C (en) 1989-12-22 1990-11-22 Method of effecting channel estimation for a fading channel when transmitting symbol sequences
DE69006586T DE69006586T2 (de) 1989-12-22 1990-11-22 Verfahren zur Schätzung eines Kanals, der von einem "Fading" unterzogen wird, bei Übertragung von Symbolsequenzen.
PCT/SE1990/000764 WO1991010296A1 (en) 1989-12-22 1990-11-22 A method of effecting channel estimation for a fading channel when transmitting symbol sequences
AU69728/91A AU630537B2 (en) 1989-12-22 1990-11-22 A method of effecting channel estimation for a fading channel when transmitting symbol sequences
NZ236235A NZ236235A (en) 1989-12-22 1990-11-27 Fading channel channel estimation during symbol sequence transmission
MYPI90002120A MY107752A (en) 1989-12-22 1990-12-01 A method of effecting channel estimation for a fading channel when transmitting symbol sequences.
US07/620,710 US5204878A (en) 1989-12-22 1990-12-03 Method of effecting channel estimation for a fading channel when transmitting symbol sequences
KR91700873A KR970007616B1 (en) 1989-12-22 1991-08-10 Method of effecting channel estimation for a fading channel when transmitting symbol sequences
SG92594A SG92594G (en) 1989-12-22 1994-07-11 A method of effecting channel estimation for a fading channel when transmitting symbol sequences
HK85494A HK85494A (en) 1989-12-22 1994-08-18 A method of effecting channel estimation for a fading channel when transmitting symbol sequences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8904327A SE465245B (sv) 1989-12-22 1989-12-22 Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser

Publications (3)

Publication Number Publication Date
SE8904327D0 SE8904327D0 (sv) 1989-12-22
SE8904327L SE8904327L (sv) 1991-06-23
SE465245B true SE465245B (sv) 1991-08-12

Family

ID=20377842

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8904327A SE465245B (sv) 1989-12-22 1989-12-22 Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser

Country Status (12)

Country Link
US (1) US5204878A (de)
EP (1) EP0434651B1 (de)
JP (1) JP3165437B2 (de)
KR (1) KR970007616B1 (de)
AU (1) AU630537B2 (de)
CA (1) CA2046316C (de)
DE (1) DE69006586T2 (de)
HK (1) HK85494A (de)
MY (1) MY107752A (de)
NZ (1) NZ236235A (de)
SE (1) SE465245B (de)
WO (1) WO1991010296A1 (de)

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IT1236977B (it) * 1989-12-22 1993-05-12 Italtel Spa Ricevitore per un sistema radiomobile digitale con cancellazione di segnali interferenti isofrequenziali aventi lo stesso tipo di modulazione,e relativo metodo
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
US5214675A (en) * 1991-07-02 1993-05-25 Motorola, Inc. System and method for calculating channel gain and noise variance of a communication channel
SE469052B (sv) * 1991-09-10 1993-05-03 Ericsson Telefon Ab L M Foerfarande att bilda ett kanalestimat foer en tidsvarierande radiokanal
DE4139567A1 (de) * 1991-11-30 1993-06-03 Aeg Mobile Communication Digitales funk-nachrichtenuebertragungsverfahren
SE470371B (sv) * 1992-06-23 1994-01-31 Ericsson Telefon Ab L M Sätt och anordning vid digital signalöverföring att hos en mottagare estimera överförda symboler
US5335250A (en) * 1992-10-22 1994-08-02 Ericsson Ge Mobile Communications Inc. Method and apparatus for bidirectional demodulation of digitally modulated signals
JPH06140951A (ja) * 1992-10-27 1994-05-20 Sony Corp ビタビ等化器
US5581580A (en) * 1993-05-20 1996-12-03 Telefonaktiebolaget Lm Ericsson Low complexity model based channel estimation algorithm for fading channels
SE513657C2 (sv) * 1993-06-24 2000-10-16 Ericsson Telefon Ab L M Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
JP3560991B2 (ja) * 1993-09-20 2004-09-02 株式会社東芝 適応型最尤系列推定装置
KR0124597B1 (ko) * 1994-04-12 1997-12-01 구자홍 에이치디티브이(hdtv)용 채널등화기
SE502755C2 (sv) * 1994-09-27 1996-01-08 Telia Ab Metod och anordning avseende fädningsrelaterad accesskontroll vid digitalt radiokommunikationssystem
SE503522C2 (sv) * 1994-10-31 1996-07-01 Ericsson Telefon Ab L M Förfarande och anordning för kanalestimering
US5586128A (en) * 1994-11-17 1996-12-17 Ericsson Ge Mobile Communications Inc. System for decoding digital data using a variable decision depth
US5568520A (en) * 1995-03-09 1996-10-22 Ericsson Inc. Slope drift and offset compensation in zero-IF receivers
US5712877A (en) * 1995-05-26 1998-01-27 Simon Fraser University Pilot-symbol aided continuous phase modulation system
DE69609514T2 (de) * 1995-08-23 2000-12-14 Nortel Networks Corp., Montreal Taktrueckgewinnung und rahmensynchronisierung in einem zellularen uebertragungssystem
FI100564B (fi) * 1995-12-04 1997-12-31 Nokia Telecommunications Oy Menetelmä transitiometriikan muodostamiseksi ja solukkoradiojärjestelm än vastaanotin
US5838739A (en) * 1996-03-29 1998-11-17 Ericsson Inc. Channel estimator circuitry, and associated method, for a digital communication system
FI962140L (fi) 1996-05-21 1997-11-22 Nokia Telecommunications Oy Menetelmä impulssivasteen estimoimiseksi sekä vastaanotin
US6006075A (en) 1996-06-18 1999-12-21 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity
US6026130A (en) * 1997-03-04 2000-02-15 Advanced Micro Devices, Inc. System and method for estimating a set of parameters for a transmission channel in a communication system
US6151484A (en) 1997-08-08 2000-11-21 Ericsson Inc. Communications apparatus and methods for adaptive signal processing based on mobility characteristics
FI106681B (fi) * 1997-08-29 2001-03-15 Nokia Networks Oy Parametrin estimointimenetelmä ja vastaanotin
US6208617B1 (en) * 1998-02-27 2001-03-27 Lucent Technologies, Inc. Channel tracking in a mobile receiver
KR100288375B1 (ko) * 1998-05-25 2001-06-01 윤종용 역방향링크와독립적인순방향링크의전력제어방법
US6404826B1 (en) * 1998-07-02 2002-06-11 Texas Instruments Incorporated Iterative signal-to-interference ratio estimation for WCDMA
US7415285B2 (en) 2001-09-27 2008-08-19 The Regents Of The University Of California Reducing power control errors in wireless communication system
US7391350B2 (en) * 2000-07-13 2008-06-24 The Regents Of The University Of California Adaptive multi-bit delta and sigma-delta modulation
DE60032906T2 (de) * 2000-11-07 2007-10-25 Stmicroelectronics N.V. Verfahren und Vorrichtung zur Kanalschätzung, insbesondere für ein Mobiltelefon
DE60118920T2 (de) * 2001-09-25 2006-12-28 Stmicroelectronics N.V. Verfahren und Vorrichtung zur Bestimmung der Signalschwundkoeffizienten in einem Mehrwegübertragungskanal, der insbesondere eine Basisstation und ein Mobiltelefon verbindet
DE10232702B4 (de) * 2002-07-18 2005-06-16 Infineon Technologies Ag Adaptiver Entzerrer mit integrierter Anpassung des Ausgangspegels
US7218693B2 (en) * 2003-05-08 2007-05-15 Texas Instruments Incorporated Method and apparatus for channel estimation in a packet based transmission system having reduced complexity
US7889822B2 (en) * 2006-09-21 2011-02-15 Broadcom Corporation Frequency domain equalizer with one dominant interference cancellation for dual antenna radio
US8130882B2 (en) * 2009-09-30 2012-03-06 Silicon Laboratories Inc. Radio receiver having a multipath equalizer
US8265133B2 (en) * 2009-09-30 2012-09-11 Silicon Laboratories Inc. Radio receiver having a multipath equalizer
US20120281145A1 (en) * 2011-05-06 2012-11-08 Casas Raul Alejandro Least squares matrix compression and decompression in a digital television receiver

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DE3116266A1 (de) * 1981-04-24 1982-11-11 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zum entzerren eines datensignales
US4475211A (en) * 1982-09-13 1984-10-02 Communications Satellite Corporation Digitally controlled transversal equalizer
US4564952A (en) * 1983-12-08 1986-01-14 At&T Bell Laboratories Compensation of filter symbol interference by adaptive estimation of received symbol sequences
US4935183A (en) * 1984-04-23 1990-06-19 Wenger Manufacturing, Inc. Method of extruding material through a twin-screw extruder having respective conical nose screw sections
JPS6211326A (ja) * 1985-07-09 1987-01-20 Hitachi Ltd 自動等化器再設定方式
US4635276A (en) * 1985-07-25 1987-01-06 At&T Bell Laboratories Asynchronous and non-data decision directed equalizer adjustment
US4811360A (en) * 1988-01-14 1989-03-07 General Datacomm, Inc. Apparatus and method for adaptively optimizing equalization delay of data communication equipment
SE462943B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer frekvensstyrning av en koherent radiomottagare
SE462942B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare
US5031193A (en) * 1989-11-13 1991-07-09 Motorola, Inc. Method and apparatus for diversity reception of time-dispersed signals

Also Published As

Publication number Publication date
SE8904327D0 (sv) 1989-12-22
KR920702106A (ko) 1992-08-12
AU6972891A (en) 1991-07-24
JPH04504943A (ja) 1992-08-27
EP0434651A1 (de) 1991-06-26
SE8904327L (sv) 1991-06-23
KR970007616B1 (en) 1997-05-13
AU630537B2 (en) 1992-10-29
CA2046316C (en) 2000-05-23
EP0434651B1 (de) 1994-02-09
JP3165437B2 (ja) 2001-05-14
CA2046316A1 (en) 1991-06-23
HK85494A (en) 1994-08-26
US5204878A (en) 1993-04-20
MY107752A (en) 1996-06-15
WO1991010296A1 (en) 1991-07-11
NZ236235A (en) 1993-04-28
DE69006586D1 (de) 1994-03-24
DE69006586T2 (de) 1994-05-26

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