ES2178477T3 - Procedimiento para el procesamiento de señales ofdm recibidas simultaneamente a traves de un sistema de antenas multiples. - Google Patents

Procedimiento para el procesamiento de señales ofdm recibidas simultaneamente a traves de un sistema de antenas multiples.

Info

Publication number
ES2178477T3
ES2178477T3 ES99948847T ES99948847T ES2178477T3 ES 2178477 T3 ES2178477 T3 ES 2178477T3 ES 99948847 T ES99948847 T ES 99948847T ES 99948847 T ES99948847 T ES 99948847T ES 2178477 T3 ES2178477 T3 ES 2178477T3
Authority
ES
Spain
Prior art keywords
values
antenna system
ofdm
multiple antenna
procedure
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
ES99948847T
Other languages
English (en)
Other versions
ES2178477T5 (es
Inventor
Jurgen Lauterjung
Christoph Balz
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.)
Rohde and Schwarz GmbH and Co KG
Original Assignee
Rohde and Schwarz GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7885680&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2178477(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rohde and Schwarz GmbH and Co KG filed Critical Rohde and Schwarz GmbH and Co KG
Publication of ES2178477T3 publication Critical patent/ES2178477T3/es
Application granted granted Critical
Publication of ES2178477T5 publication Critical patent/ES2178477T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • 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
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Procedimiento para el procesamiento de señales OFDM recibidas simultáneamente a través de un sistema de antenas múltiples con varios canales de recepción independientes, en el que en los canales de recepción se determina de una forma conocida para cada portadora de la señal OFDM los valores de corrección de canal o los valores de confianza a partir de los pilotos, caracterizado porque a partir de ellos se calculan unos factores de ponderación, con los que se pondera de forma diferente los valores I/Q de cada una de las portadoras individuales de la señal OFDM obtenidos en el demodulador OFDM, de tal forma que las portadoras recibidas con un nivel más bajo se ponderan de forma escasa y las portadoras recibidas con un nivel más alto se ponderan de forma elevada, sumando a continuación los valores I/Q así ponderados y dividiendo por la suma de todos los factores de ponderación.
ES99948847T 1998-10-26 1999-09-23 Procedimiento para el procesamiento de señales ofdm recibidas simultáneamente a través de un sistema de antenas múltiples. Expired - Lifetime ES2178477T5 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19849318 1998-10-26
DE19849318A DE19849318A1 (de) 1998-10-26 1998-10-26 Verfahren zum Verarbeiten von durch ein Mehrantennensystem gleichzeitig empfangenen OFDM-Signalen

Publications (2)

Publication Number Publication Date
ES2178477T3 true ES2178477T3 (es) 2002-12-16
ES2178477T5 ES2178477T5 (es) 2011-06-17

Family

ID=7885680

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99948847T Expired - Lifetime ES2178477T5 (es) 1998-10-26 1999-09-23 Procedimiento para el procesamiento de señales ofdm recibidas simultáneamente a través de un sistema de antenas múltiples.

Country Status (8)

Country Link
US (1) US7039137B1 (es)
EP (1) EP1125377B2 (es)
JP (1) JP4455765B2 (es)
AT (1) ATE219309T1 (es)
DE (2) DE19849318A1 (es)
DK (1) DK1125377T4 (es)
ES (1) ES2178477T5 (es)
WO (1) WO2000025446A1 (es)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948383A1 (de) * 1999-10-07 2001-04-12 Rohde & Schwarz Verfahren zum empfangsseitigen Bestimmen der Nutzdatenkonstellation eines nach dem DVB-T-Standard modulierten Multiträger-Signals für die Berechnung der Restträgerleistung bzw. Verbesserung der Demodulation
JP4439155B2 (ja) * 1999-11-27 2010-03-24 ドイッチェ テレコム アーゲー 多重搬送波通信システムにおける同一チャンネルの干渉除去方法
DE10027610A1 (de) * 2000-06-06 2001-12-13 Fuba Automotive Gmbh Verfahren zum Diversityempfang von digitalen Fernsehsignalen
GB2364210A (en) * 2000-06-30 2002-01-16 Nokia Oy Ab Diversity receiver and method of receiving a multi carrier signal
JP3676986B2 (ja) 2001-03-29 2005-07-27 松下電器産業株式会社 無線受信装置及び無線受信方法
FR2827728B1 (fr) * 2001-07-17 2004-02-06 Telediffusion De France Tdf Procede de reception d'un signal multiporteuse a diversite de voies, recepteur et systeme correspondant
JP4071468B2 (ja) * 2001-09-28 2008-04-02 株式会社東芝 Ｏｆｄｍ受信装置
WO2003071766A1 (en) * 2002-02-20 2003-08-28 Xtremespectrum, Inc. M-ary orthagonal coded communications method and system
DE10224536B4 (de) * 2002-05-31 2009-04-23 Harman Becker Automotive Systems (Xsys Division) Gmbh Verfahren und Schaltungsanordnung zum Mehrwegeempfang
JP4098027B2 (ja) * 2002-08-01 2008-06-11 松下電器産業株式会社 無線基地局装置
JP2004112216A (ja) * 2002-09-17 2004-04-08 Alps Electric Co Ltd Ｏｆｄｍ受信装置
US7551678B2 (en) * 2002-12-19 2009-06-23 Fujitsu Limited OFDM transceiver apparatus
DE102004026071A1 (de) 2004-05-25 2005-12-22 Micronas Gmbh Verfahren und Vorrichtung zum Verarbeiten empfangener Daten einer Funkschnittstelle
US7489670B2 (en) * 2005-12-27 2009-02-10 Celeno Communications Ltd. Device, system and method of uplink/downlink communication in wireless network
US9071435B2 (en) 2005-12-29 2015-06-30 Celeno Communications Ltd. System and method for tuning transmission parameters in multi-user multiple-input-multiple-output systems with aged and noisy channel estimation
US20070153754A1 (en) * 2005-12-29 2007-07-05 Nir Shapira Method, apparatus and system of spatial division multiple access communication in a wireless local area network
US7570624B2 (en) * 2005-12-29 2009-08-04 Celeno Communications (Israel) Ltd. Device, system and method of uplink/downlink communication in wireless network
US7751353B2 (en) * 2005-12-29 2010-07-06 Celeno Communications (Israel) Ltd. Device, system and method of securing wireless communication
US7672400B2 (en) 2005-12-29 2010-03-02 Celeno Communications (Israel) Ltd. Method of secure WLAN communication
US20070153760A1 (en) 2005-12-29 2007-07-05 Nir Shapira Method, apparatus and system of spatial division multiple access communication in a wireless local area network
US7656965B2 (en) * 2005-12-29 2010-02-02 Celeno Communications (Israel) Ltd. Method of secure WLAN communication
DE102009016752B4 (de) 2008-12-05 2019-11-28 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Rekonstruktion eines Sendesignals in einem differentiell modulierten OFDM-Übertragungssystem
US8831546B2 (en) 2011-11-07 2014-09-09 Ibiquity Digital Corporation MRC antenna diversity for FM IBOC digital signals
WO2015053110A1 (ja) * 2013-10-10 2015-04-16 ソニー株式会社 受信装置、受信方法、並びにプログラム

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US3633107A (en) 1970-06-04 1972-01-04 Bell Telephone Labor Inc Adaptive signal processor for diversity radio receivers
US5191576A (en) * 1988-11-18 1993-03-02 L'Etat Francais and Telediffusion de France S.A. Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization
DE4018044A1 (de) * 1990-06-06 1991-12-12 Philips Patentverwaltung Empfaenger mit mindestens zwei empfangszweigen
US5140615A (en) 1990-06-12 1992-08-18 Motorola, Inc. Maximal ratio diversity combining technique
US5265122A (en) 1992-03-19 1993-11-23 Motorola, Inc. Method and apparatus for estimating signal weighting parameters in a diversity receiver
EP0600547B1 (en) * 1992-12-01 2000-02-09 Koninklijke Philips Electronics N.V. Sub-band diversity transmission system
JP2616440B2 (ja) 1994-05-31 1997-06-04 日本電気株式会社 軟判定回路
GB9424341D0 (en) 1994-12-02 1995-01-18 Philips Electronics Uk Ltd Receiver diversity
DE19518858C1 (de) * 1995-05-23 1996-07-04 Rundfunkschutzrechte Ev Sende- und Empfangsverfahren für digitale Nutzdaten
US5757791A (en) * 1996-04-18 1998-05-26 American Wireless Technology, Inc. Multistage linear receiver for DS-CDMA systems
US5799005A (en) * 1996-04-30 1998-08-25 Qualcomm Incorporated System and method for determining received pilot power and path loss in a CDMA communication system
DE19638404C1 (de) * 1996-09-19 1998-02-19 Siemens Ag Verfahren und Empfänger zum Ermitteln von mit dem CDMA-Verfahren codierten Symbolwertfolgen mit Hilfe individueller Viterbi-Algorithmen
US6169751B1 (en) * 1997-03-10 2001-01-02 Matsushita Electric Industrial Co., Ltd. OFDM receiving apparatus
DE19738780A1 (de) * 1997-09-04 1999-03-11 Thomson Brandt Gmbh Verfahren und Schaltungsanordnung zur Korrektur von Phasen- und/oder Frequenzfehlern digitaler Multicarrier-Signale
ATE208110T1 (de) * 1997-09-22 2001-11-15 Cit Alcatel Verfahren und vorrichtung zur bestimmung eines taktfehlers in einem mehrträgerübertragungssystem

Also Published As

Publication number Publication date
DE19849318A1 (de) 2000-04-27
ATE219309T1 (de) 2002-06-15
DE59901769D1 (de) 2002-07-18
EP1125377A1 (de) 2001-08-22
DK1125377T3 (da) 2002-07-15
JP2002528999A (ja) 2002-09-03
EP1125377B1 (de) 2002-06-12
US7039137B1 (en) 2006-05-02
DK1125377T4 (da) 2011-07-25
WO2000025446A1 (de) 2000-05-04
JP4455765B2 (ja) 2010-04-21
EP1125377B2 (de) 2011-04-20
ES2178477T5 (es) 2011-06-17

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