[go: up one dir, main page]

WO1999059351A3 - Verfahren und einrichtung zur kanalschätzung - Google Patents

Verfahren und einrichtung zur kanalschätzung Download PDF

Info

Publication number
WO1999059351A3
WO1999059351A3 PCT/DE1999/001355 DE9901355W WO9959351A3 WO 1999059351 A3 WO1999059351 A3 WO 1999059351A3 DE 9901355 W DE9901355 W DE 9901355W WO 9959351 A3 WO9959351 A3 WO 9959351A3
Authority
WO
WIPO (PCT)
Prior art keywords
midamble
channel
coefficients
fourier transformation
estimation
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.)
Ceased
Application number
PCT/DE1999/001355
Other languages
English (en)
French (fr)
Other versions
WO1999059351A2 (de
Inventor
Christoph Euscher
Michael Franzen
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to JP2000549046A priority Critical patent/JP2002515707A/ja
Priority to EP99932631A priority patent/EP1076970A2/de
Priority to AU48961/99A priority patent/AU4896199A/en
Publication of WO1999059351A2 publication Critical patent/WO1999059351A2/de
Publication of WO1999059351A3 publication Critical patent/WO1999059351A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

Erfindungsgemäß werden beim Verfahren zur Kanalschätzung in einem Kommunikationssystem Signale bestehend aus einem Datenteil mit Datensymbolen und einer Mittambel mit einer bestimmten Anzahl von bekannten Symbolen über einen Übertragungskanal übertragen. Empfangsseitig werden Kanalkoeffizienten bezüglich einer Kanalimpulsantwort des Übertragungskanals geschätzt, wobei zur Schätzung der Kanalkoeffizienten das von den Mittambeln abhängige empfangene Signal mit aus den bekannten Symbolen der Mittambel abgeleiteten Schätzkoeffizienten durch eine Fouriertransformation gefaltet wird. Die Fouriertransformation wird mit einer beliebigen Anzahl S von Stützstellen durchgeführt, solange S≥2L gilt, wobei L die Länge des auswertbaren Teils der Mittambel ist. Besonders vorteilhaft wird die Erfindung in Mobilfunknetzen der 3. Generation Eingesetzt.
PCT/DE1999/001355 1998-05-08 1999-05-05 Verfahren und einrichtung zur kanalschätzung Ceased WO1999059351A2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000549046A JP2002515707A (ja) 1998-05-08 1999-05-05 チャネル推定方法および装置
EP99932631A EP1076970A2 (de) 1998-05-08 1999-05-05 Verfahren und einrichtung zur kanalschätzung
AU48961/99A AU4896199A (en) 1998-05-08 1999-05-05 Method and device for channel estimation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19820761.1 1998-05-08
DE19820761A DE19820761C1 (de) 1998-05-08 1998-05-08 Verfahren und Einrichtung zur Kanalschätzung

Publications (2)

Publication Number Publication Date
WO1999059351A2 WO1999059351A2 (de) 1999-11-18
WO1999059351A3 true WO1999059351A3 (de) 1999-12-29

Family

ID=7867194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/001355 Ceased WO1999059351A2 (de) 1998-05-08 1999-05-05 Verfahren und einrichtung zur kanalschätzung

Country Status (6)

Country Link
EP (1) EP1076970A2 (de)
JP (1) JP2002515707A (de)
CN (1) CN1308807A (de)
AU (1) AU4896199A (de)
DE (1) DE19820761C1 (de)
WO (1) WO1999059351A2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6831944B1 (en) 1999-09-14 2004-12-14 Interdigital Technology Corporation Reduced computation in joint detection
CA2396571C (en) 2000-01-07 2006-11-07 Interdigital Technology Corporation Channel estimation for time division duplex communication systems
CN1108071C (zh) 2000-04-11 2003-05-07 信息产业部电信科学技术研究院 码分多址移动通信系统中终端设备端的一种信号处理方法
GB2398975B (en) * 2001-02-01 2005-02-23 Fujitsu Ltd Communications systems
DE10116984A1 (de) * 2001-04-05 2002-10-10 Rainer Martin Verfahren und Vorrichtung zur Übertragung und Speicherung von Sprach- und Audiosignalen
US6937644B2 (en) 2003-01-10 2005-08-30 Interdigital Technology Corporation Generalized two-stage data estimation
US7433430B2 (en) * 2005-02-09 2008-10-07 Harris Corporation Wireless communications device providing enhanced block equalization and related methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698504A1 (fr) * 1992-11-24 1994-05-27 Thomson Csf Procédé et dispositif d'égalisation non linéaire d'un signal multi-porteuse dans une liaison satellite.
US5371760A (en) * 1993-04-28 1994-12-06 Telesis Technologies Laboratory Method and apparatus for measuring the impulse response of a radio channel
WO1999008401A1 (de) * 1997-08-12 1999-02-18 Siemens Aktiengesellschaft Verfahren und einrichtung zur kanalschätzung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19549148A1 (de) * 1995-12-29 1997-07-03 Siemens Ag Verfahren und Anordnung zur Funkübertragung von digitalen Signalen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698504A1 (fr) * 1992-11-24 1994-05-27 Thomson Csf Procédé et dispositif d'égalisation non linéaire d'un signal multi-porteuse dans une liaison satellite.
US5371760A (en) * 1993-04-28 1994-12-06 Telesis Technologies Laboratory Method and apparatus for measuring the impulse response of a radio channel
WO1999008401A1 (de) * 1997-08-12 1999-02-18 Siemens Aktiengesellschaft Verfahren und einrichtung zur kanalschätzung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MARTIN U ET AL: "EIN SYSTEM ZUR MESSUNG DER EIGENSCHAFTEN VON MOBILFUNKKANAELEN UND EIN VERFAHREN ZUR NACHVERARBEITUNG DER MESSDATEN", FREQUENZ, vol. 46, no. 7 / 8, July 1992 (1992-07-01) - August 1992 (1992-08-01), Berlin, Deutschland, pages 178 - 188, XP000309525, ISSN: 0016-1136 *
STEINER B ET AL: "OPTIMUM AND SUBOPTIMUM CHANNEL ESTIMATION FOR THE UPLINK OF CDMA MOBILE RADIO SYSTEMS WITH JOINT DETECTION", EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS AND RELATED TECHNOLOGIES, vol. 5, no. 1, January 1994 (1994-01-01) - February 1994 (1994-02-01), Mailand, Italien, pages 39 - 50, XP000445714, ISSN: 1120-3862 *

Also Published As

Publication number Publication date
AU4896199A (en) 1999-11-29
WO1999059351A2 (de) 1999-11-18
EP1076970A2 (de) 2001-02-21
CN1308807A (zh) 2001-08-15
JP2002515707A (ja) 2002-05-28
DE19820761C1 (de) 1999-06-24

Similar Documents

Publication Publication Date Title
WO1997023962A3 (en) Method and apparatus for intersymbol interference reduction using array processing of diversity signals
AU2002235904A1 (en) Doppler shift and spread estimation method and apparatus
WO2002019569A1 (en) Data transmitting apparatus, radio communication system and radio communication method
EP1453211A3 (de) Funkübertragungssystem, Funkstation und Funkübertragungsverfahren
WO2003075471A3 (en) System and method for joint maximal ratio combining
EP1363406A4 (de) "mobilkommunikationssystem, basisstation und kommunikationsteuerverfahren"
EP1059008A4 (de) Verfahren und system zur schätzung des aufenthaltortes eines teilnehmers im dienstgebiet eines drahtlosen kommunikationssystems
EP1107524A3 (de) Kanalschätzung für ein Vermittlungssystem
UA85180C2 (ru) Способ оценки сигнала и мобильная станция (варианты)
WO2008083399A3 (en) Systems and methods for channel estimation in wireless communication system
CA2269925A1 (en) Iterative channel estimation
EP1008265A4 (de) Verfahren und system zur schätzung der position eines teilnehmers in einem gebiet mit störechos
EP1259007A3 (de) Vorrichtung zur Modulation und Demodulation von Mehrkanal-fsk für Versorgungsleitungssystem
WO2002052807A3 (en) Equalisation and subcarrier suppression
WO2002067526A3 (en) Channel estimation in multicarrier transmission systems
GB0031841D0 (en) Interference power estimation for adaptive antenna system
CA2411457A1 (en) Transmission system, transmission method, transmission apparatus, and electronic recording medium having recorded therein transmission program
ATE340442T1 (de) Parameterschätzung für adaptives antennensystem
WO2002067525A3 (en) Intercarrier interference cancellation in multicarrier receivers
WO2003003571A3 (en) Automatic gain control
WO1999059351A3 (de) Verfahren und einrichtung zur kanalschätzung
WO1999020061A3 (de) Verfahren und empfangseinrichtung zur kanalschätzung in kommunikationssystemen
AU5154900A (en) Method for symbol-spaced estimation and/or tracking of a fractionally-spaced fading radio channel
AU2001244481A1 (en) Estimating communication quality
WO2000060791A3 (en) Collision handling scheme for discrete multi-tone data communications network

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 99808402.6

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AU BR CA CN HU ID IL IN JP KR MX NO PL RU TR UA US VN

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

AK Designated states

Kind code of ref document: A3

Designated state(s): AU BR CA CN HU ID IL IN JP KR MX NO PL RU TR UA US VN

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1999932631

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: KR

WWP Wipo information: published in national office

Ref document number: 1999932631

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1999932631

Country of ref document: EP