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AR031539A1 - Metodo y aparato para estimar la calidad de enlace en un sistema de radiotelecomunicaciones - Google Patents

Metodo y aparato para estimar la calidad de enlace en un sistema de radiotelecomunicaciones

Info

Publication number
AR031539A1
AR031539A1 ARP000106372A ARP000106372A AR031539A1 AR 031539 A1 AR031539 A1 AR 031539A1 AR P000106372 A ARP000106372 A AR P000106372A AR P000106372 A ARP000106372 A AR P000106372A AR 031539 A1 AR031539 A1 AR 031539A1
Authority
AR
Argentina
Prior art keywords
estimates
estimate
link quality
control signal
channel estimate
Prior art date
Application number
ARP000106372A
Other languages
English (en)
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 AR031539A1 publication Critical patent/AR031539A1/es

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
    • H04L25/0202—Channel estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Un método y aparato para estimar la calidad de enlace en un sistema de radiotelecomunicaciones. Se usan estimaciones de errores de bits para medir la calidad de enlace en un sistema de radiotelecomunicaciones. Se producen estimaciones de errores de bits no polarizadas ni procesadas a partir de los símbolos pilotos existentes. Las estimaciones de la tasa de errores de bits se pueden generar sin incurrir en sobrecarga de senalizacion adicional. Más particularmente, se obtiene una estimacion de calidad de enlace recibiendo las senales de control en un radio receptor, donde cada senal de control puede incluir uno o más símbolos pilotos que derivan una estimacion de canal por cada senal de control, modificando cada estimacion de canal como una funcion de la correspondiente contribucion de la senal de control a la estimacion de canal, y derivando una medida de la calidad de enlace sobre la base de dichas estimaciones de canal modificadas.
ARP000106372A 1999-12-01 2000-12-01 Metodo y aparato para estimar la calidad de enlace en un sistema de radiotelecomunicaciones AR031539A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16830299P 1999-12-01 1999-12-01
US09/726,515 US6892053B2 (en) 1999-12-01 2000-12-01 Bit error estimates from pilot signals

Publications (1)

Publication Number Publication Date
AR031539A1 true AR031539A1 (es) 2003-09-24

Family

ID=26863974

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP000106372A AR031539A1 (es) 1999-12-01 2000-12-01 Metodo y aparato para estimar la calidad de enlace en un sistema de radiotelecomunicaciones

Country Status (9)

Country Link
US (1) US6892053B2 (es)
EP (1) EP1234402B1 (es)
JP (1) JP4813723B2 (es)
CN (1) CN100393023C (es)
AR (1) AR031539A1 (es)
AT (1) ATE320120T1 (es)
AU (1) AU1912201A (es)
DE (1) DE60026580D1 (es)
WO (1) WO2001041350A1 (es)

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EP2146468B1 (en) * 1999-04-02 2011-01-05 NTT DoCoMo, Inc. Fading frequency decision device and method
US6848065B1 (en) * 2000-06-21 2005-01-25 Telefonaktiebolaget Lm Ericsson (Publ) Bit error rate estimation
KR100377969B1 (ko) * 2000-07-10 2003-03-29 이용환 적응 채널 추정 장치를 이용한 직접시퀀스 확산대역시스템 수신 장치
US20020136287A1 (en) * 2001-03-20 2002-09-26 Heath Robert W. Method, system and apparatus for displaying the quality of data transmissions in a wireless communication system
EP1263179B1 (en) * 2001-05-29 2007-06-27 Lucent Technologies Inc. Channel estimation for a CDMA system using coded control symbols as additional pilot symbols
KR20030057589A (ko) * 2001-12-29 2003-07-07 엘지전자 주식회사 가변길이 무선 패킷 데이터 시스템 및 그 운용 방법
FR2833435B1 (fr) * 2001-12-06 2004-02-27 Thomson Licensing Sa Methode de selection de chemin de reception et dispositif de reception comprenant plusieurs chemins de reception
JP3565344B2 (ja) * 2002-02-21 2004-09-15 株式会社エヌ・ティ・ティ・ドコモ 干渉除去システム、及び、干渉除去方法
JP4470377B2 (ja) * 2003-02-28 2010-06-02 株式会社日立製作所 移動通信システムにおける伝搬路推定方法
US8040938B2 (en) * 2004-03-12 2011-10-18 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for extended least squares estimation for generalized rake receiver parameters using multiple base stations
US7539240B2 (en) * 2004-03-12 2009-05-26 Telefonaftiebolaget Lm Ericsson (Publ) Method and apparatus for parameter estimation in a generalized rake receiver
US7773950B2 (en) * 2004-06-16 2010-08-10 Telefonaktiebolaget Lm Ericsson (Publ) Benign interference suppression for received signal quality estimation
US7522682B2 (en) * 2004-12-29 2009-04-21 Alcatel-Lucent Usa Inc. Removing bias in a pilot symbol error rate for receivers
CN100373975C (zh) * 2005-08-22 2008-03-05 中兴通讯股份有限公司 码分多址系统中信道测量量上报的方法
US7889822B2 (en) * 2006-09-21 2011-02-15 Broadcom Corporation Frequency domain equalizer with one dominant interference cancellation for dual antenna radio

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US5329547A (en) * 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
EP0664187B1 (en) * 1993-06-02 1999-10-13 Dai Nippon Printing Co., Ltd. Grinding tape and method of manufacturing the same
US5692015A (en) * 1994-06-22 1997-11-25 Ntt Mobile Communications Network, Inc. Coherent detector and a coherent detection method for a digital communication receiver
FI97180C (fi) * 1994-11-03 1996-10-25 Nokia Mobile Phones Ltd Menetelmä kanavan estimoimiseksi ja vastaanotin
FR2747870B1 (fr) * 1996-04-19 1998-11-06 Wavecom Sa Signal numerique a blocs de reference multiples pour l'estimation de canal, procedes d'estimation de canal et recepteurs correspondants
JPH1051354A (ja) * 1996-05-30 1998-02-20 N T T Ido Tsushinmo Kk Ｄｓ−ｃｄｍａ伝送方法
JP3001040B2 (ja) * 1996-09-20 2000-01-17 日本電気株式会社 Ｃｄｍａセルラーシステム用閉ループ送信機電力制御ユニット
SG77607A1 (en) * 1997-08-26 2001-01-16 Univ Singapore A multi-user code division multiple access receiver
US6208632B1 (en) * 1998-01-29 2001-03-27 Sharp Laboratories Of America System and method for CDMA channel estimation
JP2970656B1 (ja) * 1998-06-25 1999-11-02 日本電気株式会社 Ｄｓ−ｃｄｍａマルチユーザ干渉キャンセラ
EP0981207A1 (en) * 1998-06-30 2000-02-23 Lucent Technologies Inc. Pilot symbols
US6411649B1 (en) * 1998-10-20 2002-06-25 Ericsson Inc. Adaptive channel tracking using pilot sequences
US6507602B1 (en) * 1999-01-07 2003-01-14 Ericsson, Inc. Smoothing receiver channel estimates using spectral estimation
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US6452917B1 (en) * 1999-04-08 2002-09-17 Qualcomm Incorporated Channel estimation in a CDMA wireless communication system
US6414988B1 (en) * 1999-05-12 2002-07-02 Qualcomm Incorporated Amplitude and phase estimation method in a wireless communication system

Also Published As

Publication number Publication date
AU1912201A (en) 2001-06-12
CN100393023C (zh) 2008-06-04
WO2001041350A1 (en) 2001-06-07
CN1402919A (zh) 2003-03-12
US6892053B2 (en) 2005-05-10
ATE320120T1 (de) 2006-03-15
DE60026580D1 (de) 2006-05-04
EP1234402B1 (en) 2006-03-08
EP1234402A1 (en) 2002-08-28
US20010036812A1 (en) 2001-11-01
JP4813723B2 (ja) 2011-11-09
JP2003516096A (ja) 2003-05-07

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