JP2010273364A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2010273364A5 JP2010273364A5 JP2010156077A JP2010156077A JP2010273364A5 JP 2010273364 A5 JP2010273364 A5 JP 2010273364A5 JP 2010156077 A JP2010156077 A JP 2010156077A JP 2010156077 A JP2010156077 A JP 2010156077A JP 2010273364 A5 JP2010273364 A5 JP 2010273364A5
- Authority
- JP
- Japan
- Prior art keywords
- channel
- point
- ofdm symbol
- symbols
- ofdm
- 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.)
- Pending
Links
- 125000004122 cyclic group Chemical group 0.000 claims 8
- 238000000034 method Methods 0.000 claims 6
- 239000006185 dispersion Substances 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 2
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66071705P | 2005-03-10 | 2005-03-10 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008501015A Division JP4603072B2 (ja) | 2005-03-10 | 2006-03-09 | Ofdmシンボル時間追跡情報を使用するfftコレクションウィンドウ位置決め |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010273364A JP2010273364A (ja) | 2010-12-02 |
| JP2010273364A5 true JP2010273364A5 (enExample) | 2011-01-20 |
Family
ID=36579188
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008501016A Pending JP2008533861A (ja) | 2005-03-10 | 2006-03-09 | Ofdm通信システム用のトレンドに影響されるシンボル時間追跡 |
| JP2008501014A Ceased JP2008533859A (ja) | 2005-03-10 | 2006-03-09 | Ofdm通信システム用のシンボル時間追跡 |
| JP2008501015A Expired - Fee Related JP4603072B2 (ja) | 2005-03-10 | 2006-03-09 | Ofdmシンボル時間追跡情報を使用するfftコレクションウィンドウ位置決め |
| JP2010156077A Pending JP2010273364A (ja) | 2005-03-10 | 2010-07-08 | Ofdmシンボル時間追跡情報を使用するfftコレクションウィンドウ位置決め |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008501016A Pending JP2008533861A (ja) | 2005-03-10 | 2006-03-09 | Ofdm通信システム用のトレンドに影響されるシンボル時間追跡 |
| JP2008501014A Ceased JP2008533859A (ja) | 2005-03-10 | 2006-03-09 | Ofdm通信システム用のシンボル時間追跡 |
| JP2008501015A Expired - Fee Related JP4603072B2 (ja) | 2005-03-10 | 2006-03-09 | Ofdmシンボル時間追跡情報を使用するfftコレクションウィンドウ位置決め |
Country Status (10)
| Country | Link |
|---|---|
| US (3) | US8175123B2 (enExample) |
| EP (3) | EP1872549B1 (enExample) |
| JP (4) | JP2008533861A (enExample) |
| KR (3) | KR100934146B1 (enExample) |
| CN (3) | CN101160895B (enExample) |
| AR (1) | AR052693A1 (enExample) |
| AT (3) | ATE460037T1 (enExample) |
| DE (3) | DE602006012641D1 (enExample) |
| TW (3) | TW200706016A (enExample) |
| WO (3) | WO2006099240A1 (enExample) |
Families Citing this family (94)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023611B (zh) * | 2004-09-18 | 2010-12-01 | 三星电子株式会社 | 用于在正交频分复用系统中频率同步的设备和方法 |
| US8780957B2 (en) | 2005-01-14 | 2014-07-15 | Qualcomm Incorporated | Optimal weights for MMSE space-time equalizer of multicode CDMA system |
| US8693540B2 (en) | 2005-03-10 | 2014-04-08 | Qualcomm Incorporated | Method and apparatus of temporal error concealment for P-frame |
| 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 |
| US20060221810A1 (en) * | 2005-03-10 | 2006-10-05 | Bojan Vrcelj | Fine timing acquisition |
| CA2600776C (en) * | 2005-03-10 | 2012-07-17 | Qualcomm Incorporated | A decoder architecture for optimized error management in streaming multimedia |
| JP5318561B2 (ja) * | 2005-03-10 | 2013-10-16 | クゥアルコム・インコーポレイテッド | マルチメディア処理のためのコンテンツ分類 |
| US7925955B2 (en) * | 2005-03-10 | 2011-04-12 | Qualcomm Incorporated | Transmit driver in communication system |
| US8175123B2 (en) * | 2005-03-10 | 2012-05-08 | Qualcomm Incorporated | Collection window positioning using time tracking information |
| US20100157833A1 (en) * | 2005-03-10 | 2010-06-24 | Qualcomm Incorporated | Methods and systems for improved timing acquisition for varying channel conditions |
| US8675631B2 (en) * | 2005-03-10 | 2014-03-18 | Qualcomm Incorporated | Method and system for achieving faster device operation by logical separation of control information |
| ATE444634T1 (de) * | 2005-04-21 | 2009-10-15 | Ericsson Telefon Ab L M | Doppler-spreizungsschätzung für ofdm-systeme |
| US20070002726A1 (en) * | 2005-07-01 | 2007-01-04 | Zangi Kambiz C | System and method for adapting a cyclic prefix in an orthogonal frequency division multiplexing (OFDM) system |
| US9113147B2 (en) * | 2005-09-27 | 2015-08-18 | Qualcomm Incorporated | Scalability techniques based on content information |
| US8654848B2 (en) | 2005-10-17 | 2014-02-18 | Qualcomm Incorporated | Method and apparatus for shot detection in video streaming |
| US8948260B2 (en) | 2005-10-17 | 2015-02-03 | Qualcomm Incorporated | Adaptive GOP structure in video streaming |
| US7623607B2 (en) * | 2005-10-31 | 2009-11-24 | Qualcomm Incorporated | Methods and apparatus for determining timing in a wireless communication system |
| US8009745B2 (en) * | 2005-11-15 | 2011-08-30 | Qualcomm Incorporated | Time tracking for a receiver with guard interval correlation |
| US8948329B2 (en) * | 2005-12-15 | 2015-02-03 | Qualcomm Incorporated | Apparatus and methods for timing recovery in a wireless transceiver |
| US8144818B2 (en) * | 2005-12-15 | 2012-03-27 | Qualcomm Incorporated | Apparatus and methods for determining timing in a communication system |
| US8428198B2 (en) * | 2006-03-15 | 2013-04-23 | Qualcomm Incorporated | Frequency tracking which adapts to timing synchronization |
| US8005169B1 (en) * | 2006-03-17 | 2011-08-23 | Marvell International Ltd. | Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems |
| US9131164B2 (en) | 2006-04-04 | 2015-09-08 | Qualcomm Incorporated | Preprocessor method and apparatus |
| US8396151B2 (en) * | 2006-10-19 | 2013-03-12 | Qualcomm Incorporated | Timing tracking in a multiple receive antenna system |
| US7907673B2 (en) * | 2006-10-26 | 2011-03-15 | Telefonaktiebolaget L M Ericsson (Publ) | Robust and low-complexity combined signal power estimation |
| US7929624B2 (en) * | 2006-10-26 | 2011-04-19 | Telefonaktiebolaget L M Ericsson (Publ) | Cell ID detection in cellular communication systems |
| US7684504B2 (en) * | 2006-10-31 | 2010-03-23 | Freescale Semiconductor, Inc. | System and method for reducing edge effect |
| US20080107200A1 (en) * | 2006-11-07 | 2008-05-08 | Telecis Wireless, Inc. | Preamble detection and synchronization in OFDMA wireless communication systems |
| US8265178B2 (en) * | 2006-11-07 | 2012-09-11 | Qualcomm Incorporated | Methods and apparatus for signal and timing detection in wireless communication systems |
| CN101193094B (zh) * | 2006-11-20 | 2011-10-19 | 电信科学技术研究院 | 一种发送广播/组播业务的方法及系统 |
| US8085873B2 (en) * | 2007-01-02 | 2011-12-27 | Qualcomm, Incorporated | Systems and methods for enhanced channel estimation in wireless communication systems |
| US9008198B2 (en) * | 2007-01-05 | 2015-04-14 | Qualcomm Incorporated | Methods and apparatus for timing synchronization based on transitional pilot symbols |
| 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 |
| US7859990B2 (en) * | 2007-01-23 | 2010-12-28 | Beceem Communications Inc. | Methods and systems for performing channels estimation in a wireless communication system |
| US20080219332A1 (en) * | 2007-03-05 | 2008-09-11 | Qualcomm Incorporated | Apparatus and methods accounting for automatic gain control in a multi carrier system |
| US8098567B2 (en) * | 2007-03-05 | 2012-01-17 | Qualcomm Incorporated | Timing adjustments for channel estimation in a multi carrier system |
| KR101129207B1 (ko) * | 2007-03-05 | 2012-04-12 | 퀄컴 인코포레이티드 | 멀티 캐리어 시스템에서 자동 이득 제어의 출력에서의 불연속 효과들을 고려하는 장치 및 방법 |
| US8045636B1 (en) * | 2007-03-27 | 2011-10-25 | Marvell International Ltd. | Maximum-likelihood frame synchronization algorithms for OFDM systems |
| WO2008133567A1 (en) * | 2007-04-30 | 2008-11-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Synchronization time difference measurements in ofdm systems |
| US8135078B2 (en) * | 2007-05-04 | 2012-03-13 | Amicus Wireless Technology Ltd. | Channel profile estimation for OFDM-based communication system |
| US8385826B2 (en) | 2007-07-10 | 2013-02-26 | Qualcomm Incorporated | Methods and apparatus for supporting communication over different ranges in a wireless network |
| US8411805B1 (en) | 2007-08-14 | 2013-04-02 | Marvell International Ltd. | Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems |
| US8681666B2 (en) * | 2007-10-01 | 2014-03-25 | Qualcomm Incorporated | Partial discarding of cyclic prefix for efficient TDD or half-duplex FDD operation |
| JP5098553B2 (ja) * | 2007-10-10 | 2012-12-12 | 富士通セミコンダクター株式会社 | Ofdm受信装置およびofdm受信方法 |
| JP2009094839A (ja) | 2007-10-10 | 2009-04-30 | Fujitsu Microelectronics Ltd | Ofdm受信装置 |
| JP5085269B2 (ja) * | 2007-10-23 | 2012-11-28 | 京セラ株式会社 | 無線通信装置 |
| DE102007053402A1 (de) * | 2007-11-09 | 2009-05-14 | Rohde & Schwarz Gmbh & Co. Kg | Synchronisierung von Empfangssymbolen bei OFDM |
| US8532201B2 (en) * | 2007-12-12 | 2013-09-10 | Qualcomm Incorporated | Methods and apparatus for identifying a preamble sequence and for estimating an integer carrier frequency offset |
| US8537931B2 (en) * | 2008-01-04 | 2013-09-17 | Qualcomm Incorporated | Methods and apparatus for synchronization and detection in wireless communication systems |
| JP4524704B2 (ja) * | 2008-03-14 | 2010-08-18 | ソニー株式会社 | 復調回路、復調方法、プログラム、および受信装置 |
| US8699529B2 (en) | 2008-03-28 | 2014-04-15 | Qualcomm Incorporated | Broadband pilot channel estimation using a reduced order FFT and a hardware interpolator |
| EP3675396B1 (en) * | 2008-03-31 | 2021-07-28 | Panasonic Intellectual Property Management Co., Ltd. | Receiver, method of reception, reception program, integrated circuit, and digital television |
| US8073064B2 (en) * | 2008-04-18 | 2011-12-06 | Newport Media, Inc. | Robust FFT trigger point tracking for echo channels in OFDM based communication systems |
| US8824575B2 (en) * | 2008-05-28 | 2014-09-02 | Nokia Siemens Networks Oy | Method and apparatus for providing pilot signals in OFDM frames |
| WO2009154054A1 (ja) * | 2008-06-19 | 2009-12-23 | シャープ株式会社 | 無線装置 |
| US8174958B2 (en) | 2008-08-01 | 2012-05-08 | Broadcom Corporation | Method and system for a reference signal (RS) timing loop for OFDM symbol synchronization and tracking |
| US8559296B2 (en) * | 2008-08-01 | 2013-10-15 | Broadcom Corporation | Method and system for an OFDM joint timing and frequency tracking system |
| WO2010042319A2 (en) | 2008-10-10 | 2010-04-15 | Ziva Corporation | Techniques and systems for wireless communications |
| US8964789B1 (en) | 2008-11-11 | 2015-02-24 | Marvell International Ltd. | Method and system for data synchronization in communication systems using repetitive preamble patterns |
| US8719649B2 (en) * | 2009-03-04 | 2014-05-06 | Alcatel Lucent | Method and apparatus for deferred scheduling for JTAG systems |
| KR101625056B1 (ko) * | 2009-03-13 | 2016-05-27 | 엘지전자 주식회사 | 무선 통신 시스템에서 데이터 전송 및 수신 방법 |
| CN101552764B (zh) * | 2009-04-29 | 2012-12-19 | 香港应用科技研究院有限公司 | 基于ofdm的通信的时间同步系统和方法 |
| CN101924723B (zh) * | 2009-06-09 | 2013-05-08 | 中兴通讯股份有限公司 | Ofdm信号解调方法和装置 |
| EP2474102A4 (en) | 2009-09-03 | 2016-06-22 | Ziva Corp | METHOD AND SYSTEMS FOR TEMPORARY CODING BASED COMMUNICATIONS |
| JP5336994B2 (ja) * | 2009-10-19 | 2013-11-06 | キヤノン株式会社 | 通信方法及び通信装置 |
| TW201141144A (en) | 2009-11-16 | 2011-11-16 | Maxlinear Inc | Apparatus and methods for symbol timing error detection, tracking and correction |
| US9642105B2 (en) * | 2009-11-17 | 2017-05-02 | Qualcomm Incorporated | Access terminal-assisted time and/or frequency tracking |
| US8503553B2 (en) * | 2009-12-17 | 2013-08-06 | Texas Instruments Incorporated | Pilot subcarriers in wireless transmissions |
| CN102209377B (zh) * | 2010-03-31 | 2015-01-28 | 中兴通讯股份有限公司 | 辅同步信号的生成方法和装置 |
| US8582698B2 (en) | 2010-05-10 | 2013-11-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Reduced complexity timing estimation for locating the position of a mobile terminal |
| US8559537B2 (en) * | 2010-05-12 | 2013-10-15 | GM Global Technology Operations LLC | Spectral-temporal averaging for IEEE 802.11p dynamic channel equalization |
| US8494070B2 (en) * | 2010-05-12 | 2013-07-23 | Qualcomm Incorporated | Channel impulse response (CIR)-based and secondary synchronization channel (SSC)-based (frequency tracking loop (FTL)/time tracking loop (TTL)/channel estimation |
| US9083408B2 (en) * | 2010-08-31 | 2015-07-14 | Qualcomm Incorporated | Implicit and explicit channel sounding for beamforming |
| CN103067952A (zh) * | 2011-10-21 | 2013-04-24 | 上海湾流仪器技术有限公司 | 基于信令流程的移动网络单通分析方法 |
| EP2595352B1 (en) * | 2011-11-18 | 2014-04-09 | Cambridge Silicon Radio Limited | Method and apparatus for enhanced channel estimation using a frame based compensation of changes of the communication channel |
| US20130170568A1 (en) * | 2011-12-29 | 2013-07-04 | Assaf Prihed | Reducing inter-carrier interference in ofdm and ofdma systems by time sample scaling based on cyclic prefix samples |
| US9078205B2 (en) | 2012-03-09 | 2015-07-07 | Qualcomm Incorporated | Methods and apparatus for enabling non-destaggered channel estimation |
| US9275013B2 (en) * | 2012-03-16 | 2016-03-01 | Qualcomm Incorporated | System and method for analysis and reconstruction of variable pulse-width signals having low sampling rates |
| US9967112B2 (en) * | 2012-05-03 | 2018-05-08 | Apple Inc. | Apparatus and methods for adaptively resuming radio channel estimation |
| TWI524682B (zh) * | 2013-06-11 | 2016-03-01 | 晨星半導體股份有限公司 | 用於接收器之時序恢復的修正裝置與方法 |
| US9143376B2 (en) * | 2013-09-04 | 2015-09-22 | Broadcom Corporation | Efficient tree-based MIMO OFDM detection |
| PL3123801T3 (pl) * | 2014-03-25 | 2018-09-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Ulepszony format nagłówka PRACH |
| US9673948B2 (en) * | 2014-10-29 | 2017-06-06 | Qualcomm Incorporated | Hybrid pilot design for low latency communication |
| KR102403502B1 (ko) * | 2015-10-13 | 2022-05-30 | 삼성전자 주식회사 | 무선 통신 시스템에서 채널 상태 추정 방법 및 장치 |
| US10070447B1 (en) * | 2017-03-02 | 2018-09-04 | Samsung Electronics Co., Ltd | Method and apparatus for enhanced reference (RSTD) measurement for long term evolution (LTE) positioning |
| US10327220B2 (en) * | 2017-07-12 | 2019-06-18 | Cable Television Laboratories, Inc. | Multicast aided cooperative beamforming wireless system |
| US11394586B2 (en) | 2018-03-09 | 2022-07-19 | Nec Corporation | Wireless apparatus and channel prediction method |
| WO2019207425A1 (en) * | 2018-04-26 | 2019-10-31 | Marvell World Trade Ltd. | Pilots for wireless access in vehicular environments |
| US11121785B2 (en) | 2019-01-10 | 2021-09-14 | Exfo Inc. | Detection and tracking of interferers in a RF spectrum with multi-lane processing |
| US10735109B1 (en) | 2019-01-11 | 2020-08-04 | Exfo Inc. | Automated analysis of RF spectrum |
| US11528176B2 (en) * | 2019-09-13 | 2022-12-13 | Samsung Electronics Co., Ltd | Apparatus and method for symbol time recovery using feedback loop |
| US11540234B2 (en) | 2019-12-05 | 2022-12-27 | Exfo Inc. | Automated narrow peak interference severity estimation |
| US20240323883A1 (en) * | 2021-06-30 | 2024-09-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Purpose-dependent determination of start of receiver symbol processing window |
| WO2025259259A1 (en) * | 2024-06-10 | 2025-12-18 | Google Llc | Method and apparatus for robust timing alignment in ofdm systems |
Family Cites Families (90)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US624071A (en) * | 1899-05-02 | Gas-burning heater | ||
| US673594A (en) * | 1900-12-28 | 1901-05-07 | American Ordnance Company | Semi-automatic breech-loading ordnance. |
| US723554A (en) * | 1902-05-08 | 1903-03-24 | David Servis | Spike. |
| DE3929291A1 (de) * | 1989-09-04 | 1991-03-07 | Philips Patentverwaltung | Einrichtung zum umsetzen und rueckumsetzen eines videosignals |
| 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 |
| CA2211117C (en) | 1995-02-06 | 2001-04-03 | Adc Telecommunications, Inc. | Multi-point to point communication system |
| DE69632812T2 (de) * | 1995-08-16 | 2005-06-30 | Koninklijke Philips Electronics N.V. | Uebertragungssystem mit verbesserter symbolverarbeitung |
| US5732113A (en) * | 1996-06-20 | 1998-03-24 | Stanford University | Timing and frequency synchronization of OFDM signals |
| JPH1065605A (ja) * | 1996-08-23 | 1998-03-06 | Sony Corp | 受信方法、タイミング検出装置及び受信装置 |
| JP3479418B2 (ja) * | 1996-10-18 | 2003-12-15 | アルパイン株式会社 | デジタルオーディオ放送における受信装置 |
| JP3751385B2 (ja) | 1996-11-01 | 2006-03-01 | 三菱電機株式会社 | 信号復調装置 |
| JP3453696B2 (ja) * | 1996-11-07 | 2003-10-06 | 株式会社ケンウッド | 復調器 |
| KR100230271B1 (ko) | 1997-01-10 | 1999-11-15 | 윤종용 | Ofdm 시스템 수신기의 미세 fft 윈도우 위치 복원장치 |
| JP2883866B2 (ja) * | 1997-04-21 | 1999-04-19 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm復調装置 |
| 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 |
| DE69739012D1 (de) | 1997-09-04 | 2008-11-06 | Sony Deutschland Gmbh | Übertragungssystem für OFDM-Signale mit optimierter Synchronisation |
| DE19747369A1 (de) * | 1997-10-27 | 1999-05-06 | Siemens Ag | Übertragungskanalschätzung in Telekommunikationssystemen mit drahtloser Telekommunikation |
| EP2782307B1 (en) | 1997-11-05 | 2016-03-30 | Sony Deutschland Gmbh | Synchronisation of digital communication systems |
| US6370397B1 (en) * | 1998-05-01 | 2002-04-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Search window delay tracking in code division multiple access communication systems |
| 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 |
| JP4068242B2 (ja) * | 1998-11-30 | 2008-03-26 | 株式会社東芝 | Ofdm受信装置 |
| US6229839B1 (en) * | 1999-02-08 | 2001-05-08 | Qualcomm Incorporated | Method and apparatus for time tracking |
| US6539063B1 (en) | 1999-02-18 | 2003-03-25 | Ibiquity Digital Corporation | System and method for recovering symbol timing offset and carrier frequency error in an OFDM digital audio broadcast system |
| 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 |
| 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 |
| KR100335443B1 (ko) | 1999-06-15 | 2002-05-04 | 윤종용 | 직교주파수분할다중변조 신호의 심볼 타이밍 및 주파수 동기 장치 및 방법 |
| EP1063824B1 (en) * | 1999-06-22 | 2006-08-02 | Matsushita Electric Industrial Co., Ltd. | Symbol synchronisation in multicarrier receivers |
| 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 |
| JP3642757B2 (ja) | 1999-09-29 | 2005-04-27 | サムスン エレクトロニクス カンパニー リミテッド | 直交周波数分割多重/符号分割多重接続通信システムにおけるパイロットシンボルを利用したタイミングエラーを補償するためのシステム及び方法 |
| EP1107526A1 (en) * | 1999-12-09 | 2001-06-13 | Alcatel Alsthom Compagnie Generale D'electricite | Channel estimation using weighted averages over several time slots |
| 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 |
| 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 |
| 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 |
| KR100424496B1 (ko) | 2000-08-31 | 2004-03-26 | 삼성전자주식회사 | 디지털 vsb시스템의 동기신호를 이용한 이퀄라이져 제어 방법 및 장치 |
| CN1478330A (zh) | 2000-10-20 | 2004-02-25 | 诺泰尔网络有限公司 | 用于直接序列-码分多址信道的多用户检测器 |
| US6438367B1 (en) | 2000-11-09 | 2002-08-20 | Magis Networks, Inc. | Transmission security for wireless communications |
| GB2369016B (en) * | 2000-11-09 | 2004-06-09 | Sony Uk Ltd | Receiver |
| 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 |
| 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 |
| TW571543B (en) | 2002-04-19 | 2004-01-11 | Taiwan Semiconductor Mfg | Phase transition determination device and sampling phase determination device |
| FR2840142B1 (fr) | 2002-05-24 | 2004-09-10 | Dibcom | Procede et dispositif de synchronisation a la reception d'un signal et d'echos |
| US7346013B2 (en) * | 2002-07-18 | 2008-03-18 | Coherent Logix, Incorporated | Frequency domain equalization of communication signals |
| CN1207908C (zh) * | 2002-08-16 | 2005-06-22 | 清华大学 | 基于滑动窗口的对含导频的块信号的信道估计和均衡方法 |
| 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 |
| EP1447952B1 (en) * | 2002-12-09 | 2011-06-22 | Rohde & Schwarz GmbH & Co. KG | Method and device for analysing an OFDM signal |
| 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 |
| CN100544240C (zh) * | 2003-04-01 | 2009-09-23 | 北京邮电大学 | 用于多载波码分多址系统的时间同步方法 |
| EP1469647B1 (en) | 2003-04-17 | 2007-01-10 | Mitsubishi Electric Information Technology Centre Europe B.V. | OFDM symbol synchronisation |
| SG113465A1 (en) | 2003-05-30 | 2005-08-29 | Oki Techno Ct Singapore Pte | Method of estimating reliability of decoded message bits |
| KR20040110341A (ko) * | 2003-06-18 | 2004-12-31 | 삼성전자주식회사 | 채널상태에 따라 다른 채널등화방식을 사용하는tds-ofdm수신기 및 이를 이용한 채널등화방법 |
| US7133457B2 (en) | 2003-06-27 | 2006-11-07 | Texas Instruments Incorporated | Joint timing recovery for multiple signal channels |
| US7577087B2 (en) | 2003-06-30 | 2009-08-18 | Nokia Corporation | Faster fine timing operation in multi-carrier system |
| 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 |
| 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 |
| US20050063298A1 (en) * | 2003-09-02 | 2005-03-24 | Qualcomm Incorporated | Synchronization in a broadcast OFDM system using time division multiplexed pilots |
| WO2005050865A2 (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 |
| 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 |
| US8175123B2 (en) | 2005-03-10 | 2012-05-08 | Qualcomm Incorporated | Collection window positioning using time tracking information |
| US20060221810A1 (en) | 2005-03-10 | 2006-10-05 | Bojan Vrcelj | Fine timing acquisition |
| 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 |
-
2006
- 2006-03-08 US US11/371,837 patent/US8175123B2/en not_active Expired - Fee Related
- 2006-03-08 US US11/371,536 patent/US8165167B2/en not_active Expired - Fee Related
- 2006-03-08 US US11/371,535 patent/US8144824B2/en active Active
- 2006-03-09 EP EP06737927A patent/EP1872549B1/en not_active Not-in-force
- 2006-03-09 KR KR1020077023108A patent/KR100934146B1/ko not_active Expired - Fee Related
- 2006-03-09 AT AT06737928T patent/ATE460037T1/de not_active IP Right Cessation
- 2006-03-09 WO PCT/US2006/008797 patent/WO2006099240A1/en not_active Ceased
- 2006-03-09 CN CN200680012459.7A patent/CN101160895B/zh active Active
- 2006-03-09 CN CN200680012286.9A patent/CN101160893B/zh not_active Expired - Fee Related
- 2006-03-09 AT AT06737927T patent/ATE456234T1/de not_active IP Right Cessation
- 2006-03-09 WO PCT/US2006/008798 patent/WO2006099241A1/en not_active Ceased
- 2006-03-09 DE DE602006012641T patent/DE602006012641D1/de active Active
- 2006-03-09 JP JP2008501016A patent/JP2008533861A/ja active Pending
- 2006-03-09 AT AT06737929T patent/ATE459176T1/de not_active IP Right Cessation
- 2006-03-09 KR KR1020077023107A patent/KR100882165B1/ko not_active Expired - Fee Related
- 2006-03-09 WO PCT/US2006/008799 patent/WO2006099242A1/en not_active Ceased
- 2006-03-09 KR KR1020077023106A patent/KR100893510B1/ko not_active Expired - Fee Related
- 2006-03-09 EP EP06737929A patent/EP1872550B1/en not_active Not-in-force
- 2006-03-09 DE DE602006012467T patent/DE602006012467D1/de active Active
- 2006-03-09 DE DE602006011869T patent/DE602006011869D1/de active Active
- 2006-03-09 CN CN200680012947.8A patent/CN101164309B/zh not_active Expired - Fee Related
- 2006-03-09 JP JP2008501014A patent/JP2008533859A/ja not_active Ceased
- 2006-03-09 EP EP06737928A patent/EP1869857B1/en not_active Not-in-force
- 2006-03-09 JP JP2008501015A patent/JP4603072B2/ja not_active Expired - Fee Related
- 2006-03-10 TW TW095108234A patent/TW200706016A/zh unknown
- 2006-03-10 TW TW095108220A patent/TW200704088A/zh unknown
- 2006-03-10 TW TW095108235A patent/TW200708020A/zh unknown
- 2006-03-10 AR ARP060100927A patent/AR052693A1/es unknown
-
2010
- 2010-07-08 JP JP2010156077A patent/JP2010273364A/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2010273364A5 (enExample) | ||
| CN102413079B (zh) | 3gpp-lte系统下行链路初始分数频偏估计方法 | |
| JP4834099B2 (ja) | Ofdm伝送に関するタイミング捕捉及びモードとガード検出 | |
| EP3104570B1 (en) | Minimising inter-symbol interference in ofdm signals | |
| JP5661753B2 (ja) | Lte通信ネットワークにおけるpss信号からチャネルを推定するプロセス、およびそのレシーバ | |
| WO2011116606A1 (zh) | 正交频分复用系统中的信道估计方法及装置 | |
| CN101567870B (zh) | 信道响应起始位置、峰值位置和结束位置检测方法及装置 | |
| WO2011130994A1 (zh) | 多用户信道估计方法及装置 | |
| JP2014161035A (ja) | プレfft循環シフトによるofdm時間ベース一致処理 | |
| CN101635695B (zh) | 一种确定最大多径时延的方法及装置 | |
| CN108989259B (zh) | 无线综测仪窄带物理上行共享信道的时偏估计方法及系统 | |
| WO2011147181A1 (zh) | 一种信道估计方法及装置、频偏估计方法及装置 | |
| WO2013178090A1 (zh) | 信道估计方法、信道估计装置和接收机 | |
| TWI429248B (zh) | 符元干擾移除方法與接收器 | |
| WO2009082849A1 (fr) | Procédé et appareil d'estimation de canal | |
| CN101611606A (zh) | 接收到的数字信号的符号同步方法以及利用该方法的数字信号接收器 | |
| KR101452563B1 (ko) | 프레임 동기 획득 장치 및 방법 | |
| WO2019034145A1 (zh) | 一种首径到达时差测量方法和装置 | |
| US9369329B1 (en) | Low-complexity non-data-aided estimation of symbol time offset in OFDM systems | |
| KR100867999B1 (ko) | Ofdm 기반의 디지털 신호 수신 장치 및 방법 | |
| JP6492506B2 (ja) | シーケンス同期化装置、方法及び受信機 | |
| JP5363575B2 (ja) | 適応フィルタリングによってofdm信号パラメータのブラインド推定を行うための方法 | |
| Abdelkareem et al. | Time varying Doppler-shift compensation for OFDM-based shallow Underwater Acoustic Communication systems | |
| JP2013046131A5 (enExample) | ||
| KR20110009552A (ko) | 다중 셀 간섭에 강인한 프레임 동기 획득 방법과 이를 이용한 셀 탐색 방법 |