TW200727611A - Methods and apparatus for determining timing in a wireless communication system - Google Patents

Methods and apparatus for determining timing in a wireless communication system

Info

Publication number
TW200727611A
TW200727611A TW095140288A TW95140288A TW200727611A TW 200727611 A TW200727611 A TW 200727611A TW 095140288 A TW095140288 A TW 095140288A TW 95140288 A TW95140288 A TW 95140288A TW 200727611 A TW200727611 A TW 200727611A
Authority
TW
Taiwan
Prior art keywords
methods
determining
sampling
symbols
setting timing
Prior art date
Application number
TW095140288A
Other languages
English (en)
Inventor
Bojan Vrcelj
fu-yun Ling
Michael Mao Wang
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200727611A publication Critical patent/TW200727611A/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2662Symbol synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2668Details of algorithms
    • H04L27/2673Details of algorithms characterised by synchronisation parameters
    • H04L27/2676Blind, i.e. without using known symbols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements

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)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
TW095140288A 2005-10-31 2006-10-31 Methods and apparatus for determining timing in a wireless communication system TW200727611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/264,532 US7623607B2 (en) 2005-10-31 2005-10-31 Methods and apparatus for determining timing in a wireless communication system

Publications (1)

Publication Number Publication Date
TW200727611A true TW200727611A (en) 2007-07-16

Family

ID=37875675

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095140288A TW200727611A (en) 2005-10-31 2006-10-31 Methods and apparatus for determining timing in a wireless communication system

Country Status (10)

Country Link
US (2) US7623607B2 (zh)
EP (1) EP1943799A2 (zh)
JP (1) JP2009514487A (zh)
KR (1) KR100970363B1 (zh)
CN (1) CN101346961B (zh)
BR (1) BRPI0618058A2 (zh)
CA (1) CA2627615A1 (zh)
RU (1) RU2396724C2 (zh)
TW (1) TW200727611A (zh)
WO (1) WO2007053842A2 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8165167B2 (en) * 2005-03-10 2012-04-24 Qualcomm Incorporated Time tracking for a communication system
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
US7623607B2 (en) * 2005-10-31 2009-11-24 Qualcomm Incorporated Methods and apparatus for determining timing in a wireless communication system
US8948329B2 (en) * 2005-12-15 2015-02-03 Qualcomm Incorporated Apparatus and methods for timing recovery in a wireless transceiver
KR100904533B1 (ko) 2008-01-11 2009-06-25 엘지전자 주식회사 전송 타이밍 조절 방법, 연속적인 패킷 전송 방법 및 이동통신 단말
WO2009122727A1 (ja) * 2008-03-31 2009-10-08 パナソニック株式会社 受信装置、受信方法、受信プログラム、集積回路及びデジタルテレビ

Family Cites Families (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0200310B1 (en) 1985-05-01 1993-08-11 General Instrument Corporation Direct broadcast satellite signal transmission system
US5170413A (en) 1990-12-24 1992-12-08 Motorola, Inc. Control strategy for reuse system assignments and handoff
JP2770626B2 (ja) * 1991-11-29 1998-07-02 日本電気株式会社 適応受信機
US5463627A (en) * 1993-02-23 1995-10-31 Matsushita Electric Industrial Co., Ltd. Frame synchronizing apparatus for quadrature modulation data communication radio receiver
US5490168A (en) * 1994-07-08 1996-02-06 Motorola, Inc. Method and system for automatic optimization of data throughput using variable packet length and code parameters
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
WO1997007620A1 (en) 1995-08-16 1997-02-27 Philips Electronics N.V. Transmission system with improved symbol processing
US5732113A (en) * 1996-06-20 1998-03-24 Stanford University Timing and frequency synchronization of OFDM signals
JP3751385B2 (ja) 1996-11-01 2006-03-01 三菱電機株式会社 信号復調装置
KR100230271B1 (ko) 1997-01-10 1999-11-15 윤종용 Ofdm 시스템 수신기의 미세 fft 윈도우 위치 복원장치
US6175551B1 (en) * 1997-07-31 2001-01-16 Lucent Technologies, Inc. Transmission system and method employing peak cancellation to reduce the peak-to-average power ratio
DE69737018T2 (de) * 1997-09-04 2007-06-28 Sony Deutschland Gmbh Übertragungssystem für OFDM-Signalen mit optimierter Synchronisation
EP2259534B1 (en) 1997-11-05 2014-08-06 Sony Deutschland Gmbh Synchronisation of digital communication systems
TW400675B (en) 1997-12-05 2000-08-01 Ind Tech Res Inst The synchronizing method and device for the OFDM signal with guard interval
EP0967742B1 (de) 1998-06-25 2007-03-21 Philips Intellectual Property & Standards GmbH Drahtloses Netzwerk
JP2000059238A (ja) * 1998-08-04 2000-02-25 Mitsubishi Electric Corp ビタビデコーダの符号同期判定回路
US6347071B1 (en) * 1998-10-13 2002-02-12 Lucent Technologies Inc. Time division multiplexed transmission of OFDM symbols
JP2000151619A (ja) 1998-11-04 2000-05-30 Sony Corp 伝送方法及び伝送装置
FI106591B (fi) 1999-01-15 2001-02-28 Nokia Mobile Phones Ltd Menetelmä tiedonsiirtovirtausten välittämiseksi
US6229839B1 (en) * 1999-02-08 2001-05-08 Qualcomm Incorporated Method and apparatus for time tracking
JP2000307489A (ja) * 1999-04-23 2000-11-02 Matsushita Electric Ind Co Ltd 無線受信装置及び受信タイミング検出方法
US6628946B1 (en) 1999-05-20 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for broadcasting system information in a cellular communications network
JP2001119368A (ja) 1999-05-31 2001-04-27 Sony Corp 受信装置及び受信方法、並びに媒体
JP4410388B2 (ja) 1999-06-22 2010-02-03 パナソニック株式会社 Ofdm復調装置およびofdm復調方法
DE60029687T2 (de) * 1999-06-22 2007-10-18 Matsushita Electric Industrial Co., Ltd., Kadoma Symboltaktsynchronisierung in Mehrträgerempfängern
CN1172460C (zh) * 1999-09-29 2004-10-20 三星电子株式会社 正交频分复用系统中补偿定时误差的系统和方法
US6614864B1 (en) 1999-10-12 2003-09-02 Itran Communications Ltd. Apparatus for and method of adaptive synchronization in a spread spectrum communications receiver
US6628735B1 (en) 1999-12-22 2003-09-30 Thomson Licensing S.A. Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system
US6839339B1 (en) 2000-02-02 2005-01-04 Lucent Technologies Inc. Header compression for general packet radio service tunneling protocol (GTP)-encapsulated packets
JP2001251273A (ja) 2000-03-06 2001-09-14 Sanyo Electric Co Ltd ディジタル放送受信機
GB2365714A (en) 2000-03-15 2002-02-20 Conexant Digital Infotainment Minimising effects of inter-symbol interference in receiver
JP3407711B2 (ja) * 2000-04-27 2003-05-19 日本電気株式会社 Ds−cdma方式の受信機におけるパスサーチ回路
KR100909203B1 (ko) 2000-07-12 2009-07-23 퀄컴 인코포레이티드 Ofdm 시스템의 실시간 서비스 및 비-실시간 서비스의멀티플렉싱
JP2002044548A (ja) 2000-07-26 2002-02-08 Toshiba Corp データ放送システムとその放送局及び放送受信装置
US6771591B1 (en) 2000-07-31 2004-08-03 Thomson Licensing S.A. Method and system for processing orthogonal frequency division multiplexed signals
US6885712B1 (en) 2000-08-16 2005-04-26 Agere Systems Inc. Methods and devices for minimizing interblock interference using an optimum time of reference
JP3590949B2 (ja) 2000-08-17 2004-11-17 松下電器産業株式会社 データ伝送装置およびデータ伝送方法
KR100424496B1 (ko) 2000-08-31 2004-03-26 삼성전자주식회사 디지털 vsb시스템의 동기신호를 이용한 이퀄라이져 제어 방법 및 장치
AU766337B2 (en) 2000-10-19 2003-10-16 Samsung Electronics Co., Ltd. Device and method for transmitting multimedia data in mobile communication system
GB2369016B (en) * 2000-11-09 2004-06-09 Sony Uk Ltd Receiver
US6438367B1 (en) * 2000-11-09 2002-08-20 Magis Networks, Inc. Transmission security for wireless communications
GB2369015A (en) * 2000-11-09 2002-05-15 Sony Uk Ltd Receiver that uses guard signals to estimate synchronisation position
JP4511714B2 (ja) 2000-12-05 2010-07-28 パナソニック株式会社 Ofdm受信装置
JP3895115B2 (ja) 2001-02-01 2007-03-22 ソニー株式会社 データ伝送方法、データ送信装置、およびデータ受信装置
KR100393630B1 (ko) * 2001-02-14 2003-08-02 삼성전자주식회사 이동통신시스템에서 프레임 동기 획득 장치 및 방법
DE60236220D1 (de) 2001-03-09 2010-06-10 Qualcomm Inc Verfahren zur Symboltaktsynchronisation in Kommunikationssystemen
US7177378B2 (en) * 2001-03-30 2007-02-13 Telefonaktiebolaget Lm Ericsson (Publ) Minimization of error contributions in a DMT system
GB2376855A (en) * 2001-06-20 2002-12-24 Sony Uk Ltd Determining symbol synchronisation in an OFDM receiver in response to one of two impulse response estimates
US7298785B2 (en) * 2001-07-04 2007-11-20 Kabushiki Kaisha Toyota Chuo Kenkyusho Multicarrier demodulation method and apparatus, and multicarrier modulation method and apparatus
US7058144B2 (en) * 2001-08-07 2006-06-06 Conexant, Inc. Intelligent control system and method for compensation application in a wireless communications system
JP4056238B2 (ja) 2001-09-27 2008-03-05 三洋電機株式会社 デジタル信号受信装置
DE10156111A1 (de) * 2001-11-16 2003-06-05 Philips Intellectual Property Empfangsschaltung zum Empfang von Nachrichtensignalen
US20030110434A1 (en) 2001-12-11 2003-06-12 Amrutur Bharadwaj S. Serial communications system and method
US6724834B2 (en) * 2002-02-22 2004-04-20 Albert L. Garrett Threshold detector for detecting synchronization signals at correlator output during packet acquisition
JP4198921B2 (ja) 2002-02-28 2008-12-17 株式会社エヌ・ティ・ティ・ドコモ 適応無線パラメータ制御方法、QoS制御装置、基地局及び無線通信システム
TW571543B (en) 2002-04-19 2004-01-11 Taiwan Semiconductor Mfg Phase transition determination device and sampling phase determination device
CN1849831A (zh) 2002-05-06 2006-10-18 美商内数位科技公司 减少消息量的方法及系统
FR2840142B1 (fr) * 2002-05-24 2004-09-10 Dibcom Procede et dispositif de synchronisation a la reception d'un signal et d'echos
US7327800B2 (en) 2002-05-24 2008-02-05 Vecima Networks Inc. System and method for data detection in wireless communication systems
GB2395094A (en) 2002-10-28 2004-05-12 Sony Uk Ltd Determining a symbol synch time in an OFDM receiver
US7254196B2 (en) * 2002-11-26 2007-08-07 Agere Systems Inc. Symbol timing for MIMO OFDM and other wireless communication systems
EP1445906B1 (en) * 2002-12-09 2006-05-31 Rohde & Schwarz GmbH & Co. KG Method and device for analysing an OFDM signal
US7136439B2 (en) 2002-12-20 2006-11-14 Intel Corporation Adaptive synchronization
KR100594101B1 (ko) 2003-01-20 2006-06-30 삼성전자주식회사 비추적 영역에서 멀티캐스트 멀티미디어 방송 서비스를제공하는 시스템 및 방법
JP2005039764A (ja) 2003-01-23 2005-02-10 Matsushita Electric Ind Co Ltd メディアデータ送信装置およびメディアデータ受信装置
US7656936B2 (en) * 2003-01-28 2010-02-02 Cisco Technology, Inc. Method and system for interference reduction in a wireless communication network using a joint detector
JP4276009B2 (ja) * 2003-02-06 2009-06-10 株式会社エヌ・ティ・ティ・ドコモ 移動局、基地局、無線伝送プログラム、及び無線伝送方法
JP4676146B2 (ja) 2003-02-28 2011-04-27 株式会社日立国際電気 映像データ配信システム及び映像データ配信方法
JP4168802B2 (ja) 2003-03-28 2008-10-22 松下電器産業株式会社 番組情報取得装置
US7400889B2 (en) 2003-04-01 2008-07-15 Telefonaktiebolaget Lm Ericsson (Publ) Scalable quality broadcast service in a mobile wireless communication network
EP1469647B1 (en) * 2003-04-17 2007-01-10 Mitsubishi Electric Information Technology Centre Europe B.V. OFDM symbol synchronisation
JP3891145B2 (ja) 2003-05-16 2007-03-14 ソニー株式会社 無線通信装置、無線通信方法及びプログラム
SG113465A1 (en) * 2003-05-30 2005-08-29 Oki Techno Ct Singapore Pte Method of estimating reliability of decoded message bits
US7133457B2 (en) * 2003-06-27 2006-11-07 Texas Instruments Incorporated Joint timing recovery for multiple signal channels
DE60316851T2 (de) * 2003-06-30 2008-01-31 Nokia Corp. Schnellerer fein-timing-betrieb in einem mehrträgersystem
JP4237004B2 (ja) 2003-07-04 2009-03-11 三菱電機株式会社 通信方法、基地局制御装置および基地局
TWI220547B (en) * 2003-07-08 2004-08-21 Realtek Semiconductor Corp Symbol boundary detection device and method
JP4183706B2 (ja) * 2003-07-29 2008-11-19 富士通株式会社 Ofdmシステムにおけるパイロット多重方法及び送受信装置
CN1774898B (zh) 2003-07-30 2012-02-01 日本电信电话株式会社 无线分组通信方法以及无线分组通信装置
JP2005057575A (ja) 2003-08-06 2005-03-03 Seiko Epson Corp Ofdm受信機
JP2005057673A (ja) * 2003-08-07 2005-03-03 Mitsubishi Electric Corp マルチキャリア受信装置
RU2235429C1 (ru) 2003-08-15 2004-08-27 Федеральное государственное унитарное предприятие "Воронежский научно-исследовательский институт связи" Способ частотно-временной синхронизации системы связи и устройство для его осуществления
KR20050019388A (ko) 2003-08-19 2005-03-03 엘지전자 주식회사 멀티미디어 방송 및 멀티캐스트 서비스를 위한 패킷데이터와 관련 제어정보를 송수신하는 방법
US20050063298A1 (en) * 2003-09-02 2005-03-24 Qualcomm Incorporated Synchronization in a broadcast OFDM system using time division multiplexed pilots
CA2545546A1 (en) * 2003-11-18 2005-06-02 Ibiquity Digital Corporation Coherent tracking for fm iboc receiver using a switch diversity antenna system
US8553822B2 (en) * 2004-01-28 2013-10-08 Qualcomm Incorporated Time filtering for excess delay mitigation in OFDM systems
CN102752096A (zh) * 2004-01-28 2012-10-24 高通股份有限公司 Ofdm接收机中的定时估计
US7372823B2 (en) 2004-03-22 2008-05-13 Lucent Technologies Inc. Method of transmitting broadcast-multicast services parameters messages in a wireless communications system
US7457231B2 (en) * 2004-05-04 2008-11-25 Qualcomm Incorporated Staggered pilot transmission for channel estimation and time tracking
US7860193B2 (en) * 2004-07-20 2010-12-28 Qualcomm Incorporated Coarse timing estimation system and methodology for wireless symbols
US7123669B2 (en) * 2004-10-25 2006-10-17 Sandbridge Technologies, Inc. TPS decoder in an orthogonal frequency division multiplexing receiver
US8422955B2 (en) * 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US7826807B2 (en) * 2005-03-09 2010-11-02 Qualcomm Incorporated Methods and apparatus for antenna control in a wireless terminal
US8165167B2 (en) 2005-03-10 2012-04-24 Qualcomm Incorporated Time tracking for a communication system
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
US20060250939A1 (en) 2005-03-28 2006-11-09 Wang Michael M Optimal timing and frequency acquisition for OFDM systems
US7609773B2 (en) * 2005-04-18 2009-10-27 Qualcomm Incorporated Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator
US7623607B2 (en) * 2005-10-31 2009-11-24 Qualcomm Incorporated Methods and apparatus for determining timing in a wireless communication system
US8948329B2 (en) * 2005-12-15 2015-02-03 Qualcomm Incorporated Apparatus and methods for timing recovery in a wireless transceiver
US7782806B2 (en) * 2006-03-09 2010-08-24 Qualcomm Incorporated Timing synchronization and channel estimation at a transition between local and wide area waveforms using a designated TDM pilot
US7839831B2 (en) * 2007-01-08 2010-11-23 Qualcomm Incorporated Methods and apparatus for time tracking using assistance from TDM pilots in a communication network
US8249116B2 (en) 2008-12-24 2012-08-21 Qualcomm Incorporated Methods and systems for timing acquisition robust to channel fading

Also Published As

Publication number Publication date
KR20080070729A (ko) 2008-07-30
WO2007053842A3 (en) 2007-08-16
JP2009514487A (ja) 2009-04-02
WO2007053842A2 (en) 2007-05-10
BRPI0618058A2 (pt) 2011-08-16
RU2008121870A (ru) 2009-12-10
US20100034242A1 (en) 2010-02-11
EP1943799A2 (en) 2008-07-16
CN101346961B (zh) 2013-08-21
US7623607B2 (en) 2009-11-24
US20070098125A1 (en) 2007-05-03
RU2396724C2 (ru) 2010-08-10
CN101346961A (zh) 2009-01-14
KR100970363B1 (ko) 2010-07-15
US8422614B2 (en) 2013-04-16
WO2007053842A8 (en) 2008-04-03
CA2627615A1 (en) 2007-05-10

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