AR030535A1 - Receptor de radio y un metodo para procesar una senal recibida - Google Patents

Receptor de radio y un metodo para procesar una senal recibida

Info

Publication number
AR030535A1
AR030535A1 ARP000105689A ARP000105689A AR030535A1 AR 030535 A1 AR030535 A1 AR 030535A1 AR P000105689 A ARP000105689 A AR P000105689A AR P000105689 A ARP000105689 A AR P000105689A AR 030535 A1 AR030535 A1 AR 030535A1
Authority
AR
Argentina
Prior art keywords
refined
estimate
carried out
received signal
estimation
Prior art date
Application number
ARP000105689A
Other languages
English (en)
Inventor
Bengt Lindoff
Niklas Stenstroem
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
Publication of AR030535A1 publication Critical patent/AR030535A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • 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
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Se revela un receptor de conversion directa, en el cual se estima en dos pasos un corrimiento de DC. Se lleva a cabo una estimacion burda de DC, y la estimacion es eliminada de la secuencia recibida. Seguidamente, se lleva a cabo una sincronizacion burda con el fin de estimar la posicion de sincronizacion en la ráfaga. Subsecuentemente, la estimacion burda del canal y un DC más refinado son llevados a cabo de forma simultánea, y la estimacion DC refinada es eliminada. Finalmente, se lleva a cabo una estimacion de sincronizacion y canal refinada, y la estimacion refinada del canal es introducida a un ecualizador, que actua sobre la senal recibida, luego de la eliminacion de la estimacion refinada del componente DC.
ARP000105689A 1999-10-29 2000-10-27 Receptor de radio y un metodo para procesar una senal recibida AR030535A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9925631A GB2355900B (en) 1999-10-29 1999-10-29 Radio receiver

Publications (1)

Publication Number Publication Date
AR030535A1 true AR030535A1 (es) 2003-08-27

Family

ID=10863614

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP000105689A AR030535A1 (es) 1999-10-29 2000-10-27 Receptor de radio y un metodo para procesar una senal recibida

Country Status (13)

Country Link
US (1) US6711393B1 (es)
EP (1) EP1228611B1 (es)
JP (1) JP4536985B2 (es)
CN (1) CN1154310C (es)
AR (1) AR030535A1 (es)
AT (1) ATE363797T1 (es)
AU (1) AU1387101A (es)
CO (1) CO5300373A1 (es)
DE (1) DE60035060T2 (es)
ES (1) ES2284540T3 (es)
GB (1) GB2355900B (es)
MY (1) MY126985A (es)
WO (1) WO2001033792A1 (es)

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AU2003271714A1 (en) * 2002-11-20 2004-06-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and corresponding arrangement for dc offset compensation using channel estimation
US7342979B2 (en) 2002-12-09 2008-03-11 Broadcom Corporation Incremental redundancy support in a cellular wireless terminal having IR processing module
EP1429506A3 (en) * 2002-12-09 2007-01-24 Broadcom Corporation Pipeline architecture for equalisers
WO2004075426A1 (ja) * 2003-02-20 2004-09-02 Nec Corporation 信号処理装置、及びダイレクトコンバージョン受信装置
US7352720B2 (en) 2003-06-16 2008-04-01 Broadcom Corporation System and method to determine a bit error probability of received communications within a cellular wireless network
US7406139B2 (en) 2003-06-16 2008-07-29 Broadcom Corporation System and method to identify a modulation format of a data frame within a cellular wireless network
US7068735B2 (en) 2003-06-16 2006-06-27 Broadcom Corp. System and method to perform DC compensation on a radio frequency burst in a cellular wireless network
US7203461B2 (en) 2003-06-16 2007-04-10 Broadcom Corporation Adaptive channel quality estimation algorithm to support link adaptation
US7342956B2 (en) 2003-06-16 2008-03-11 Broadcom Corporation System and method to extract uplink status flag bits in a cellular wireless network
US7107080B2 (en) 2003-06-16 2006-09-12 Broadcom Corporation System and method to conduct idle mode paging channel monitoring within a cellular wireless network
US7277688B2 (en) * 2003-06-17 2007-10-02 Broadcom Corporation DC offset correction for very low intermediate frequency receiver
US7212593B2 (en) * 2003-10-14 2007-05-01 Telefonaktiebolaget Lm Ericsson (Publ) Method of and apparatus for noise whitening filtering
US7289583B2 (en) * 2003-10-14 2007-10-30 Telefonktiebolagel Lm Ericsson (Publ) Method of and apparatus for single antenna interference rejection through relaxation
US7457379B2 (en) 2003-10-16 2008-11-25 Broadcom Corporation Adaptive multi-step combined DC offset compensation for EDGE 8-PSK
US7366475B2 (en) * 2004-06-04 2008-04-29 Telefonaktiebolaget Lm Ericsson (Publ) Signal strength measurements in cellular telecommunication systems
GB0419487D0 (en) * 2004-09-02 2004-10-06 Ttp Communications Ltd DC estimation in received signals
US7817757B2 (en) * 2006-05-30 2010-10-19 Fujitsu Limited System and method for independently adjusting multiple offset compensations applied to a signal
CN100492026C (zh) * 2006-12-04 2009-05-27 北京中星微电子有限公司 一种去直流电能计量电路和去直流电路
CN101447958B (zh) * 2008-12-30 2011-05-11 清华大学 一种调制器性能的测量方法和装置
KR20130104289A (ko) * 2012-03-13 2013-09-25 삼성전자주식회사 오프셋 값을 추정하는 장치, 방법, 수신장치 및 수신장치에서 신호를 처리하는 방법

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US5241702A (en) 1990-09-06 1993-08-31 Telefonaktiebolaget L M Ericsson D.c. offset compensation in a radio receiver
US5319679A (en) 1992-12-09 1994-06-07 Datum Systems Method and apparatus for recovering data from a radio signal
GB2274759B (en) * 1993-02-02 1996-11-13 Nokia Mobile Phones Ltd Correction of D.C offset in received and demodulated radio signals
US5724653A (en) * 1994-12-20 1998-03-03 Lucent Technologies Inc. Radio receiver with DC offset correction circuit
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JP3486058B2 (ja) * 1996-06-24 2004-01-13 株式会社東芝 Ｄｃオフセット除去機能を備えた受信機
US5838735A (en) * 1996-07-08 1998-11-17 Telefonaktiebolaget Lm Ericsson Method and apparatus for compensating for a varying d.c. offset in a sampled signal
JPH1041992A (ja) * 1996-07-24 1998-02-13 Nippon Telegr & Teleph Corp <Ntt> 準同期検波復調装置
WO1998016039A1 (en) 1996-10-08 1998-04-16 Harris Corporation Method and apparatus for cancellation of dc offset and reconstruction of low frequency components of baseband signal
JP2993443B2 (ja) 1996-10-31 1999-12-20 日本電気株式会社 通信装置
FI101919B (fi) 1996-11-21 1998-09-15 Nokia Telecommunications Oy Menetelmä impulssivasteen laskemiseksi ja vastaanotin
EP0895385A1 (en) 1997-07-29 1999-02-03 Alcatel DC offset reduction for burst mode reception
GB2328353B (en) 1997-08-16 2002-10-02 Nec Technologies GSM mobile receiver
JP3095067B2 (ja) 1997-12-04 2000-10-03 日本電気株式会社 Ｄｃオフセットキャンセラーおよびこれを備えた受信機と通信システムとｄｃオフセットキャンセル方法
EP0948128B1 (en) * 1998-04-03 2004-12-01 Motorola Semiconducteurs S.A. DC offset cancellation in a quadrature receiver
KR100314353B1 (ko) * 1998-04-28 2001-12-28 전주범 직교분할대역수신시스템
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Also Published As

Publication number Publication date
ES2284540T3 (es) 2007-11-16
EP1228611A1 (en) 2002-08-07
WO2001033792A1 (en) 2001-05-10
ATE363797T1 (de) 2007-06-15
CN1154310C (zh) 2004-06-16
EP1228611B1 (en) 2007-05-30
DE60035060D1 (de) 2007-07-12
CO5300373A1 (es) 2003-07-31
CN1385018A (zh) 2002-12-11
GB9925631D0 (en) 1999-12-29
MY126985A (en) 2006-11-30
US6711393B1 (en) 2004-03-23
GB2355900B (en) 2004-03-17
JP4536985B2 (ja) 2010-09-01
AU1387101A (en) 2001-05-14
JP2003513542A (ja) 2003-04-08
GB2355900A (en) 2001-05-02
DE60035060T2 (de) 2008-01-24

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