ATE349844T1 - Kanalschätzer für ein ofdm system - Google Patents
Kanalschätzer für ein ofdm systemInfo
- Publication number
- ATE349844T1 ATE349844T1 AT00114424T AT00114424T ATE349844T1 AT E349844 T1 ATE349844 T1 AT E349844T1 AT 00114424 T AT00114424 T AT 00114424T AT 00114424 T AT00114424 T AT 00114424T AT E349844 T1 ATE349844 T1 AT E349844T1
- Authority
- AT
- Austria
- Prior art keywords
- ofdm system
- channel estimation
- present
- channel estimator
- basis
- Prior art date
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00114424A EP1170916B1 (de) | 2000-07-05 | 2000-07-05 | Kanalschätzer für ein OFDM System |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE349844T1 true ATE349844T1 (de) | 2007-01-15 |
Family
ID=8169171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT00114424T ATE349844T1 (de) | 2000-07-05 | 2000-07-05 | Kanalschätzer für ein ofdm system |
Country Status (5)
Country | Link |
---|---|
US (1) | US7689242B2 (de) |
EP (1) | EP1170916B1 (de) |
JP (1) | JP2002101068A (de) |
AT (1) | ATE349844T1 (de) |
DE (1) | DE60032593T2 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1705852B1 (de) | 1999-01-08 | 2010-02-10 | Sony Deutschland Gmbh | Synchronisierungssymbolstruktur für ein OFDM-System |
US7230975B2 (en) * | 2001-08-07 | 2007-06-12 | Qualcomm Incorporated | Adaptive pilot filter for a wireless communication system |
US7209433B2 (en) * | 2002-01-07 | 2007-04-24 | Hitachi, Ltd. | Channel estimation and compensation techniques for use in frequency division multiplexed systems |
US7173991B2 (en) | 2002-06-17 | 2007-02-06 | Hitachi, Ltd. | Methods and apparatus for spectral filtering channel estimates |
US7139340B2 (en) * | 2002-06-28 | 2006-11-21 | Hitachi, Ltd. | Robust OFDM carrier recovery methods and apparatus |
US7386057B2 (en) | 2003-02-20 | 2008-06-10 | Nec Corporation | Iterative soft interference cancellation and filtering for spectrally efficient high-speed transmission in MIMO systems |
US7310301B1 (en) * | 2003-04-18 | 2007-12-18 | General Dynamics C4 Systems, Inc. | Multi-carrier modulation with source information allocated over variable quality communication channel |
CN100505596C (zh) * | 2003-06-10 | 2009-06-24 | 北京邮电大学 | 一种适用于正交频分多址***的信道估计方法 |
US20050059366A1 (en) | 2003-09-16 | 2005-03-17 | Atheros Communications, Inc. | Spur mitigation techniques |
KR100557158B1 (ko) * | 2003-11-12 | 2006-03-03 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식을 사용하는 이동통신시스템에서 부반송파 할당을 위한 장치 및 방법 |
US7756003B1 (en) | 2004-02-27 | 2010-07-13 | Marvell International Ltd. | Adaptive OFDM transmitter based on carrier frequency offset |
US20070297522A1 (en) * | 2004-05-28 | 2007-12-27 | Koninklijke Philips Electronics, N.V. | Method for Signal Processing and a Signal Processor in an Ofdm System |
KR100651556B1 (ko) * | 2004-06-30 | 2006-11-29 | 삼성전자주식회사 | 통신 시스템에서 cinr 추정 장치 및 방법 |
FR2873877B1 (fr) * | 2004-08-02 | 2006-12-01 | Wavecom Sa | Procede de conception d'un filtre de reception numerique et dispositif de reception correspondant |
US7848463B2 (en) * | 2005-04-07 | 2010-12-07 | Qualcomm Incorporated | Adaptive time-filtering for channel estimation in OFDM system |
KR100830415B1 (ko) * | 2006-06-23 | 2008-05-20 | 재단법인서울대학교산학협력재단 | 다중 사용자 다중 셀 환경에서의 다중 송수신 안테나 장치및 그 방법 |
WO2009082849A1 (fr) * | 2007-12-28 | 2009-07-09 | Zte Corporation | Procédé et appareil d'estimation de canal |
EP2192735A1 (de) | 2008-11-28 | 2010-06-02 | Sony Corporation | Empfangsvorrichtung und Verfahren zum Empfangen von Signalen in einem drahtlosen Kommunikationssystem mit verbesserter Entzerrungsleistung |
EP2214362B1 (de) * | 2009-02-02 | 2012-08-01 | Sony Corporation | Empfangsvorrichtung mit Frequenzbereichsentzerrer |
US8743823B2 (en) | 2009-02-12 | 2014-06-03 | Qualcomm Incorporated | Transmission with collision detection and mitigation for wireless communication |
EP2226963B1 (de) | 2009-03-04 | 2013-05-08 | Sony Corporation | Empfangsvorrichtung und Verfahren ohne Überabtastung bei der Analog-Digital-Umwandlung |
CA2768150C (en) * | 2009-07-15 | 2016-09-20 | Nortel Networks Limited | Selecting from among plural channel estimation techniques |
US8718194B2 (en) * | 2009-11-30 | 2014-05-06 | Qualcomm Incorporated | Method and system for efficient channel estimation |
US20110194430A1 (en) * | 2009-12-18 | 2011-08-11 | Qualcomm Incorporated | Method and apparatus for unified channel estimation for wireless communication |
US8699644B1 (en) | 2010-10-28 | 2014-04-15 | Marvell International Ltd. | Adaptive low-complexity channel estimation |
US9191256B2 (en) * | 2012-12-03 | 2015-11-17 | Digital PowerRadio, LLC | Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems |
US10665554B2 (en) * | 2017-10-30 | 2020-05-26 | Taiwan Semiconductor Manufacturing Company Ltd. | Magnetic structure for transmission lines in a package system |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2671923B1 (fr) | 1991-01-17 | 1993-04-16 | France Etat | Dispositif de demodulation coherente de donnees numeriques entrelacees en temps et en frequence, a estimation de la reponse frequentielle du canal de transmission et seuillage, et emetteur correspondant. |
US5375123A (en) | 1993-02-05 | 1994-12-20 | Telefonakitebolaget L. M. Ericsson | Allocation of channels using interference estimation |
US5533063A (en) * | 1994-01-31 | 1996-07-02 | The Regents Of The University Of California | Method and apparatus for multipath channel shaping |
FI97180C (fi) | 1994-11-03 | 1996-10-25 | Nokia Mobile Phones Ltd | Menetelmä kanavan estimoimiseksi ja vastaanotin |
GB2307150B (en) * | 1995-11-09 | 1999-10-20 | Northern Telecom Ltd | An interference reduction scheme and method |
US5912876A (en) | 1997-01-15 | 1999-06-15 | Ericsson, Inc. | Method and apparatus for channel estimation |
US6047171A (en) * | 1998-01-08 | 2000-04-04 | Ericsson Inc. | Method and apparatus for combating adjacent channel interference using multiple IF filters |
US6327314B1 (en) * | 1998-04-01 | 2001-12-04 | At&T Corp. | Method and apparatus for channel estimation for multicarrier systems |
US5973642A (en) * | 1998-04-01 | 1999-10-26 | At&T Corp. | Adaptive antenna arrays for orthogonal frequency division multiplexing systems with co-channel interference |
DE69833926T2 (de) | 1998-09-11 | 2006-11-23 | Motorola, Inc., Schaumburg | Verfahren und Einrichtung zur Kanalschätzung und Kanalentzerrung in einem OFDM-Empfänger |
US6654429B1 (en) * | 1998-12-31 | 2003-11-25 | At&T Corp. | Pilot-aided channel estimation for OFDM in wireless systems |
AU730282B2 (en) * | 1999-02-18 | 2001-03-01 | Nippon Telegraph & Telephone Corporation | Coherent detection system for multicarrier modulation |
US6463105B1 (en) * | 1999-09-13 | 2002-10-08 | Ericsson Inc. | Methods and systems for estimation of the carrier to interference ratio for a wireless communication channel |
US6487253B1 (en) * | 1999-10-04 | 2002-11-26 | Cisco Technology, Inc. | OFDM channel estimation in the presence of interference |
-
2000
- 2000-07-05 AT AT00114424T patent/ATE349844T1/de not_active IP Right Cessation
- 2000-07-05 EP EP00114424A patent/EP1170916B1/de not_active Expired - Lifetime
- 2000-07-05 DE DE60032593T patent/DE60032593T2/de not_active Expired - Lifetime
-
2001
- 2001-07-03 US US09/897,910 patent/US7689242B2/en not_active Expired - Lifetime
- 2001-07-05 JP JP2001205331A patent/JP2002101068A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP1170916A1 (de) | 2002-01-09 |
EP1170916B1 (de) | 2006-12-27 |
US7689242B2 (en) | 2010-03-30 |
DE60032593D1 (de) | 2007-02-08 |
US20020001352A1 (en) | 2002-01-03 |
JP2002101068A (ja) | 2002-04-05 |
DE60032593T2 (de) | 2007-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60032593D1 (de) | Kanalschätzer für ein OFDM System | |
DE60112582D1 (de) | Empfänger und verfahren zur unterdrückung von gleichkanalstörungen | |
EP1164733B1 (de) | Verfahren und basisstation zur gestaltung von kanälen | |
EP1193933A3 (de) | Syboltaktsynchronisierung in Mehrträgerempfängern | |
DE602005002525D1 (de) | Einrichtung und Verfahren zur pilotgestützten Kanalschätzung in Zeitachse in einem OFDM Kommunikationssystem | |
HK1048207A1 (zh) | 在無線通信系統中的自適應信道估計 | |
DE502006001421D1 (de) | Funkkommunikation mit OFDMA und IFDMA | |
WO2005029722A8 (en) | Initial synchronization for receivers | |
WO2007119388B1 (en) | Method of transmitting ofdm signal and transmitter and receiver thereof | |
KR100542115B1 (ko) | Ofdma기반 셀룰러 시스템 기지국의 위상 왜곡 보상장치 및 방법 | |
ATE392063T1 (de) | Verfahren und gerät zur auswahl von spreizparametern eines ofdm-cdma-systems | |
WO2007035073A3 (en) | A method and apparatus for interference cancellation | |
ATE545252T1 (de) | Wiederverwendung einer trainingssequenz zwischen frequenzangrenzenden funksignalen | |
AU7627401A (en) | Method for the transmission of digital data by means of radio signals with orthogonal frequency division multiplexing (ofdm) | |
JP4347848B2 (ja) | 通信状態が時間変化を示す通信システムのための装置および関連方法 | |
DE50105257D1 (de) | Verfahren und System zur Frequenzoffsetschätzung für Trägermodulierte digitale Kommunikationssysteme | |
CN102104433A (zh) | 符号检测方法和符号检测设备 | |
JP2007525034A5 (de) | ||
ATE474407T1 (de) | Verbundene raum-zeit-optimalfilter (jstof) zur störungslöschung | |
KR20120071250A (ko) | 이동통신 시스템의 채널 추정 장치 및 방법 | |
WO2006107136A1 (en) | Apparatus and method for detecting preamble and rf repeating system using the same | |
US20080107012A1 (en) | Transmission method and related device | |
KR102606794B1 (ko) | 라우터의 전송신호 제어 장치 및 방법 | |
KR101471678B1 (ko) | Lte 시스템에서의 잡음 전력 추정 장치 및 방법 | |
KR20100066218A (ko) | 이산 푸리에 변환 기반의 채널 추정기 및 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |