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DE60327033D1 - Symboltaktung für MIMO OFDM und andere drahtlose Vermittlungssysteme - Google Patents

Symboltaktung für MIMO OFDM und andere drahtlose Vermittlungssysteme

Info

Publication number
DE60327033D1
DE60327033D1 DE60327033T DE60327033T DE60327033D1 DE 60327033 D1 DE60327033 D1 DE 60327033D1 DE 60327033 T DE60327033 T DE 60327033T DE 60327033 T DE60327033 T DE 60327033T DE 60327033 D1 DE60327033 D1 DE 60327033D1
Authority
DE
Germany
Prior art keywords
symbol timing
switching systems
wireless switching
mimo ofdm
mimo
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
DE60327033T
Other languages
English (en)
Inventor
Kai Roland Kriedte
Tim Schenk
Zeist Allert Van
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.)
Agere Systems LLC
Original Assignee
Agere Systems LLC
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 Agere Systems LLC filed Critical Agere Systems LLC
Application granted granted Critical
Publication of DE60327033D1 publication Critical patent/DE60327033D1/de
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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • 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
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
DE60327033T 2002-11-26 2003-10-30 Symboltaktung für MIMO OFDM und andere drahtlose Vermittlungssysteme Expired - Lifetime DE60327033D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42908102P 2002-11-26 2002-11-26
US10/644,702 US7254196B2 (en) 2002-11-26 2003-08-20 Symbol timing for MIMO OFDM and other wireless communication systems

Publications (1)

Publication Number Publication Date
DE60327033D1 true DE60327033D1 (de) 2009-05-20

Family

ID=32302758

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60327033T Expired - Lifetime DE60327033D1 (de) 2002-11-26 2003-10-30 Symboltaktung für MIMO OFDM und andere drahtlose Vermittlungssysteme

Country Status (4)

Country Link
US (1) US7254196B2 (de)
EP (1) EP1424821B1 (de)
JP (1) JP4336190B2 (de)
DE (1) DE60327033D1 (de)

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US7916803B2 (en) 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
US7599332B2 (en) * 2004-04-05 2009-10-06 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
US8743837B2 (en) * 2003-04-10 2014-06-03 Qualcomm Incorporated Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices
US8064528B2 (en) 2003-05-21 2011-11-22 Regents Of The University Of Minnesota Estimating frequency-offsets and multi-antenna channels in MIMO OFDM systems
WO2005074166A1 (en) 2004-01-29 2005-08-11 Neocific, Inc. Methods and apparatus for overlaying multi-carrier and direct sequence spread spectrum signals in a broadband wireless communication system
US7423989B2 (en) * 2004-02-13 2008-09-09 Broadcom Corporation Preamble formats for MIMO wireless communications
WO2005088853A1 (en) 2004-03-09 2005-09-22 Neocific Inc. Methods and apparatus for random access in multi-carrier communication systems
US8958493B2 (en) * 2004-03-31 2015-02-17 Infineon Technologies Ag Operation for backward-compatible transmission
US7643582B2 (en) * 2004-06-09 2010-01-05 Marvell World Trade Ltd. Method and system for determining symbol boundary timing in a multicarrier data transmission system
US7561626B2 (en) * 2004-06-09 2009-07-14 Marvell World Trade Ltd. Method and system for channel estimation in a data transmission system
US7817730B2 (en) * 2004-06-09 2010-10-19 Marvell World Trade Ltd. Training sequence for symbol boundary detection in a multicarrier data transmission system
US7697619B2 (en) * 2004-06-09 2010-04-13 Marvell World Trade Ltd. Training sequence for channel estimation in a data transmission system
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US7561627B2 (en) * 2005-01-06 2009-07-14 Marvell World Trade Ltd. Method and system for channel equalization and crosstalk estimation in a multicarrier data transmission system
KR100899749B1 (ko) * 2005-01-13 2009-05-27 삼성전자주식회사 다중 입력 다중 출력 방식을 사용하는 직교 주파수 분할 다중 통신시스템에서 프리앰블 시퀀스 송수신 방법
KR100679028B1 (ko) 2005-01-31 2007-02-05 삼성전자주식회사 다중 입력 다중 출력 통신 장치 및 다중 입력 다중 출력통신 장치의 채널 스캐닝 방법
US8428001B2 (en) * 2005-03-10 2013-04-23 Qualcomm Incorporated Timing corrections in a multi carrier system and propagation to a channel estimation time filter
US8144824B2 (en) * 2005-03-10 2012-03-27 Qualcomm Incorporated Trend influenced time tracking
US20100157833A1 (en) * 2005-03-10 2010-06-24 Qualcomm Incorporated Methods and systems for improved timing acquisition for varying channel conditions
US20060221810A1 (en) * 2005-03-10 2006-10-05 Bojan Vrcelj Fine timing acquisition
US8675631B2 (en) * 2005-03-10 2014-03-18 Qualcomm Incorporated Method and system for achieving faster device operation by logical separation of control information
WO2006098011A1 (ja) * 2005-03-16 2006-09-21 Fujitsu Limited 多入力システムにおける無線通信装置及びチャンネル推定及び分離方法
US7664187B2 (en) * 2005-04-25 2010-02-16 Sirf Technology, Inc. Memory reduction in digital broadcast receivers
KR101084139B1 (ko) 2005-06-15 2011-11-17 엘지전자 주식회사 ＤＦＴ ｓｐｒｅａｄ ＯＦＤＭＡ 시스템의 파일럿 전송방법
CN1933470A (zh) * 2005-09-13 2007-03-21 上海贝尔阿尔卡特股份有限公司 分布式多发多收－正交频分复用系统帧同步方法及装置
US7623607B2 (en) * 2005-10-31 2009-11-24 Qualcomm Incorporated Methods and apparatus for determining timing in a wireless communication system
KR20070061215A (ko) * 2005-12-08 2007-06-13 한국전자통신연구원 다중 반송파를 이용한 광대역 무선 채널 측정 장치의송수신 장치
US8340232B2 (en) * 2005-12-09 2012-12-25 Samsung Electronics Co., Ltd. Apparatus and method for channel estimation using training signals with reduced signal overhead
US8948329B2 (en) * 2005-12-15 2015-02-03 Qualcomm Incorporated Apparatus and methods for timing recovery in a wireless transceiver
CN101060512B (zh) * 2006-06-30 2010-12-08 华为技术有限公司 一种ofdm传输符号同步的方法及其系统
BRPI0715898A2 (pt) * 2006-08-17 2013-07-30 Panasonic Corp aparelho de rÁdio transmissço e mÉtodo de rÁdio transmissço
KR100818630B1 (ko) * 2006-10-04 2008-04-02 주식회사 팬택 다중입력 다중출력 무선 랜 환경에서 데이터를 송수신하는방법
US20080101482A1 (en) * 2006-10-26 2008-05-01 General Instrument Corporation Method and apparatus for refining MIMO channel estimation using the signal field of the data frame
KR101087892B1 (ko) * 2006-12-29 2011-11-30 노키아 코포레이션 자도프-추 시퀀스의 제한적인 사용을 제공하는 장치, 방법 및 프로그램 저장 디바이스
EP2140646B1 (de) * 2007-04-30 2014-02-12 Telefonaktiebolaget LM Ericsson (publ) Messungen von Synchronisationzeit in OFDM-Systemen
WO2008135911A1 (en) * 2007-05-02 2008-11-13 Koninklijke Philips Electronics N.V. Method and device for allocating resources in an ofdm network
DE102007053402A1 (de) * 2007-11-09 2009-05-14 Rohde & Schwarz Gmbh & Co. Kg Synchronisierung von Empfangssymbolen bei OFDM
KR100958792B1 (ko) * 2007-12-17 2010-05-18 한국전자통신연구원 Ｍｉｍｏ 시스템을 위한 가속화된 터보 송수신 장치 및방법
KR101467782B1 (ko) * 2008-02-25 2014-12-03 엘지전자 주식회사 이동 단말에서 공존 지원 방법
KR101467783B1 (ko) * 2008-02-25 2014-12-03 엘지전자 주식회사 무선 개인영역 통신망과의 공존 지원 방법
KR101490245B1 (ko) * 2008-02-25 2015-02-05 엘지전자 주식회사 광대역 무선접속 시스템의 서브채널 할당을 고려한 공존지원 방법
US8749400B2 (en) * 2008-08-18 2014-06-10 Halliburton Energy Services, Inc. Symbol synchronization for downhole OFDM telemetry
KR101069988B1 (ko) * 2008-10-10 2011-10-04 삼성전기주식회사 무선랜에서 신속한 동기 검출을 위한 상관 방법 및 상관 장치
US8913563B2 (en) 2009-02-06 2014-12-16 Empire Technology Development Llc Velocity based random access scheme
WO2014123926A1 (en) * 2013-02-05 2014-08-14 Interdigital Patent Holdings, Inc. Pulse-shaped orthogonal frequency division multiplexing
CN105281844A (zh) * 2014-06-30 2016-01-27 中兴通讯股份有限公司 宽带多天线无线信道测量系统及其方法
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CN106357311B (zh) * 2016-08-31 2020-01-17 电子科技大学 一种基于载波索引调制的mimo-ofdm系统的检测方法

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Also Published As

Publication number Publication date
EP1424821B1 (de) 2009-04-08
EP1424821A3 (de) 2006-11-22
JP2004180313A (ja) 2004-06-24
US7254196B2 (en) 2007-08-07
US20040100939A1 (en) 2004-05-27
JP4336190B2 (ja) 2009-09-30
EP1424821A2 (de) 2004-06-02

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Legal Events

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