ES2170059T3 - Metodo para minimizar la funcion de velocidad de error de bit estimada en if, en un receptor de radio digital con diversificacion espacial/angular. - Google Patents

Metodo para minimizar la funcion de velocidad de error de bit estimada en if, en un receptor de radio digital con diversificacion espacial/angular.

Info

Publication number
ES2170059T3
ES2170059T3 ES93108065T ES93108065T ES2170059T3 ES 2170059 T3 ES2170059 T3 ES 2170059T3 ES 93108065 T ES93108065 T ES 93108065T ES 93108065 T ES93108065 T ES 93108065T ES 2170059 T3 ES2170059 T3 ES 2170059T3
Authority
ES
Spain
Prior art keywords
minimum
bit error
digital radio
ber
estimated bit
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES93108065T
Other languages
English (en)
Inventor
Adelio Conti
Rocco Nobili
Paolo Troyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Nokia Inc
Original Assignee
Alcatel SA
Nokia Inc
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 Alcatel SA, Nokia Inc filed Critical Alcatel SA
Application granted granted Critical
Publication of ES2170059T3 publication Critical patent/ES2170059T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]

Landscapes

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

Abstract

UN METODO PARA PROCESAR Y OPTIMIZAR UNA FUNCION (ANALOGICA BER) DE TASA DE ERRORES DE BIT ESTIMADA DE FRECUENCIA INTERMEDIA EN UN SISTEMA DE TRANSMISION DE RADIO DIGITAL, USANDO RECEPCION DIFERENCIAL ESPACIO Y/O ANGULO EN EL RECEPTOR. SE DA UN VALOR MINIMO DE LA FUNCION ANALOGICA BER Y DESPUES SE ANALIZA PARA DETERMINAR SI REPRESENTA SOLAMENTE UN EFECTO DETRIMENTAL MINIMO RELATIVO RESPECTO A LA OPERACION DE ENLACE DE LA RADIO, O UN MINIMO ABSOLUTO QUE REPRESENTA LAS MEJORES CONDICIONES OBTENIBLES SOBRE EL ENLACE. EN OTRAS PALABRAS, PUEDE HABER VALORES DE LA FUNCION ANALOGICA BER QUE INDIQUEN UN MINIMO RELATIVO QUE PUEDE SEÑALAR UN "OUT OF ORDER" ("INTERRUPCION TOTAL") DEL ENLACE, EN TANTO QUE EL MINIMO ABSOLUTO PUEDE SER UN VALOR PARA EL QUE EL ENLACE NO SE DEGRADA. POR CONSIGUIENTE, PUEDE REDUCIRSE EL TIEMPO DE AVERIA TOTAL.
ES93108065T 1992-05-25 1993-05-18 Metodo para minimizar la funcion de velocidad de error de bit estimada en if, en un receptor de radio digital con diversificacion espacial/angular. Expired - Lifetime ES2170059T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI921271A IT1259032B (it) 1992-05-25 1992-05-25 Metodo per processare ed ottimizzare la funzione per analogica in un sistema di trasmissione radio digitale in diversita' di spazio e/o angolo

Publications (1)

Publication Number Publication Date
ES2170059T3 true ES2170059T3 (es) 2002-08-01

Family

ID=11363376

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93108065T Expired - Lifetime ES2170059T3 (es) 1992-05-25 1993-05-18 Metodo para minimizar la funcion de velocidad de error de bit estimada en if, en un receptor de radio digital con diversificacion espacial/angular.

Country Status (7)

Country Link
US (1) US5581583A (es)
EP (1) EP0572858B1 (es)
JP (1) JPH06181450A (es)
DE (1) DE69331567T2 (es)
ES (1) ES2170059T3 (es)
IT (1) IT1259032B (es)
NO (1) NO304917B1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6252898B1 (en) * 1995-07-19 2001-06-26 Hitachi Denshi Kabushiki Kaisha Spread spectrum communication method and system wherein data rate of data to be transmitted is changed in accordance with transmission quality
US6314127B1 (en) * 1999-02-23 2001-11-06 Lucent Technologies Inc. System and method for enhancing signal reception
IT1318274B1 (it) * 2000-07-28 2003-07-28 Siemens Inf & Comm Networks Procedimento per automatizzare l'equalizzazione preliminare deisegnali combinati nei radioricevitori in diversita' di spazio.
US6504517B1 (en) * 2000-09-12 2003-01-07 Lucent Technologies Inc. Variable sectorization tower top applique for base stations
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
US7336746B2 (en) 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
US20050180312A1 (en) * 2004-02-18 2005-08-18 Walton J. R. Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US8169889B2 (en) 2004-02-18 2012-05-01 Qualcomm Incorporated Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US8285226B2 (en) * 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
US8923785B2 (en) 2004-05-07 2014-12-30 Qualcomm Incorporated Continuous beamforming for a MIMO-OFDM system
US7110463B2 (en) * 2004-06-30 2006-09-19 Qualcomm, Incorporated Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system
US7978649B2 (en) * 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
US7978778B2 (en) 2004-09-03 2011-07-12 Qualcomm, Incorporated Receiver structures for spatial spreading with space-time or space-frequency transmit diversity
US8543070B2 (en) 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
US8290089B2 (en) 2006-05-22 2012-10-16 Qualcomm Incorporated Derivation and feedback of transmit steering matrix
EP2374239B1 (en) 2008-12-09 2013-02-20 Telefonaktiebolaget L M Ericsson (PUBL) Symbol-timing recovery techniques for multi-branch receivers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR333167A (fr) * 1903-06-18 1903-11-17 Edward Hasselbach Jeu de billard
US3864633A (en) * 1972-08-23 1975-02-04 Sperry Rand Corp Angle diversity communication system
US3879664A (en) * 1973-05-07 1975-04-22 Signatron High speed digital communication receiver
US4261056A (en) * 1979-07-16 1981-04-07 Bell Telephone Laboratories, Incorporated Equalizing signal combiner
US4373207A (en) * 1980-12-17 1983-02-08 Bell Telephone Laboratories, Incorporated Space diversity signal combiner
US4512034A (en) * 1983-07-11 1985-04-16 At&T Bell Laboratories Technique for digital radio space diversity combining
FR2628914B1 (fr) * 1988-03-18 1990-06-29 Alcatel Thomson Faisceaux Recepteur pour systeme de transmission par voie hertzienne a diversite d'espace, comprenant un combineur de diversite
EP0388163B1 (en) * 1989-03-15 1995-12-27 Nec Corporation Interference detection apparatus for use in digital mobile communications system
US4998264A (en) * 1989-09-20 1991-03-05 Data Broadcasting Corporation Method and apparatus for recovering data, such as teletext data encoded into television signals
NZ239733A (en) * 1990-09-21 1994-04-27 Ericsson Ge Mobile Communicat Mobile telephone diversity reception with predetect signal combination

Also Published As

Publication number Publication date
NO931847D0 (no) 1993-05-21
US5581583A (en) 1996-12-03
ITMI921271A1 (it) 1993-11-25
EP0572858B1 (en) 2002-02-13
ITMI921271A0 (it) 1992-05-25
NO304917B1 (no) 1999-03-01
JPH06181450A (ja) 1994-06-28
EP0572858A1 (en) 1993-12-08
IT1259032B (it) 1996-03-11
DE69331567T2 (de) 2002-10-10
DE69331567D1 (de) 2002-03-21
NO931847L (no) 1993-11-26

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