TW358280B - Method and apparatus for joint synchronization of multiple receive channels - Google Patents

Method and apparatus for joint synchronization of multiple receive channels

Info

Publication number
TW358280B
TW358280B TW086119072A TW86119072A TW358280B TW 358280 B TW358280 B TW 358280B TW 086119072 A TW086119072 A TW 086119072A TW 86119072 A TW86119072 A TW 86119072A TW 358280 B TW358280 B TW 358280B
Authority
TW
Taiwan
Prior art keywords
metric
control unit
decimator
signals
sampling phase
Prior art date
Application number
TW086119072A
Other languages
English (en)
Inventor
Gregory E Bottomley
Sandeep Chennakeshu
Original Assignee
Ericsson 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25098658&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TW358280(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of TW358280B publication Critical patent/TW358280B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Noise Elimination (AREA)
TW086119072A 1996-12-27 1997-12-17 Method and apparatus for joint synchronization of multiple receive channels TW358280B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/773,560 US6335954B1 (en) 1996-12-27 1996-12-27 Method and apparatus for joint synchronization of multiple receive channels

Publications (1)

Publication Number Publication Date
TW358280B true TW358280B (en) 1999-05-11

Family

ID=25098658

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086119072A TW358280B (en) 1996-12-27 1997-12-17 Method and apparatus for joint synchronization of multiple receive channels

Country Status (10)

Country Link
US (1) US6335954B1 (zh)
EP (1) EP0951758B1 (zh)
JP (1) JP4138014B2 (zh)
CN (1) CN1328857C (zh)
AU (1) AU7998798A (zh)
BR (1) BR9714098A (zh)
CA (1) CA2276136A1 (zh)
DE (1) DE69733770T2 (zh)
TW (1) TW358280B (zh)
WO (1) WO1998032243A1 (zh)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2759514B1 (fr) * 1997-02-10 1999-03-05 Alsthom Cge Alcatel Dispositif et procede numeriques de filtrage, decimation et transposition en bande de base repartie, et demodulateur numerique correspondant
US6185258B1 (en) 1997-09-16 2001-02-06 At&T Wireless Services Inc. Transmitter diversity technique for wireless communications
EP2285011B8 (en) 1997-10-31 2018-06-27 AT&T Mobility II LLC Maximum likelihood detection of concatenated space codes for wireless applications
JP3728116B2 (ja) * 1998-06-02 2005-12-21 キヤノン株式会社 通信方法及び装置
US6574293B1 (en) * 1998-10-28 2003-06-03 Ericsson Inc. Receivers and methods for reducing interference in radio communications
DE19901877B4 (de) 1999-01-19 2005-10-13 Siemens Ag Verfahren zum Gewinnen von Informationen über Störungen im Empfänger eines Nachrichtenübertragungssystems
US6115406A (en) * 1999-09-10 2000-09-05 Interdigital Technology Corporation Transmission using an antenna array in a CDMA communication system
US6278726B1 (en) * 1999-09-10 2001-08-21 Interdigital Technology Corporation Interference cancellation in a spread spectrum communication system
JP3500141B2 (ja) * 1999-11-08 2004-02-23 三洋電機株式会社 無線受信システムおよび同期検出方法
US7010073B2 (en) * 2001-01-19 2006-03-07 Qualcomm, Incorporated Delay lock loops for wireless communication systems
US6961397B2 (en) * 2001-07-12 2005-11-01 Lucent Technologies Inc. Symbol synchronizer for impulse noise channels
JP4664543B2 (ja) * 2001-07-26 2011-04-06 株式会社東芝 電子機器および無線アンテナの実装方法
CA2398057C (en) 2001-08-15 2011-07-19 Raytheon Company Combining signal images in accordance with signal-to-noise ratios
CN1646928A (zh) * 2002-02-13 2005-07-27 瓦尔萨拉有限责任公司 闪电探测和数据获得系统
KR100571862B1 (ko) * 2003-02-17 2006-04-17 삼성전자주식회사 다중 안테나를 포함하는 이동통신 시스템 및 그 방법
FR2854290B1 (fr) * 2003-04-25 2005-08-26 Thales Sa Procede de demodulation de signaux de type ofdm en presence de signaux brouilleurs co-canaux forts
KR20060010780A (ko) * 2003-05-05 2006-02-02 톰슨 라이센싱 왜곡된 신호의 수신을 위한 적응 소프트 복조
US7437135B2 (en) * 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7599702B2 (en) * 2003-12-23 2009-10-06 Telefonaktiebolaget Lm Ericsson (Publ) SIR estimates for non-scheduled mobile terminals
US7400692B2 (en) * 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US7924909B2 (en) * 2004-06-02 2011-04-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for interference cancellation in wireless receivers
US7532664B2 (en) * 2004-08-02 2009-05-12 Nokia Corporation Method and apparatus to estimate signal to interference plus noise ratio (SINR) in a multiple antenna receiver
FR2882479B1 (fr) * 2005-02-22 2007-04-20 Thales Sa Procede et dispositif de synchronisation de liaisons rectilignes ou quasi-rectilignes en presence d'interferences
RU2407147C2 (ru) * 2005-06-10 2010-12-20 Телефонактиеболагет Лм Эрикссон (Пабл) Способ оценки корреляций искажений в приемнике беспроводной связи и устройство для его осуществления
US7801257B2 (en) * 2005-09-28 2010-09-21 Genesis Microchip Inc Adaptive reception techniques for over-sampled receivers
CN101292451B (zh) * 2005-10-17 2011-10-12 Nxp股份有限公司 信号与干扰和噪声比估计器及方法、具有这种估计器的移动终端
US7536621B2 (en) * 2006-12-08 2009-05-19 Teradyne, Inc. Quantized data-dependent jitter injection using discrete samples
WO2009057040A1 (en) * 2007-11-01 2009-05-07 Nxp B.V. A method to discriminate a real echo peak from an aliased echo peak
US8379742B2 (en) * 2008-02-01 2013-02-19 Nec Corporation Estimating channel conditions in a MIMO OFDM communication system
US8553814B2 (en) * 2009-07-31 2013-10-08 Lsi Corporation Rapid sampling phase recovery
FR2969426B1 (fr) * 2010-12-15 2013-08-30 St Microelectronics Sa Circuit de dephasage
JP2012156668A (ja) * 2011-01-25 2012-08-16 Kyocera Corp 通信装置および通信方法
EP2865122A4 (en) 2012-06-20 2016-01-06 Magnacom Ltd IN A HIGH SPEED SPECTRUM EFFICIENT TRANSMISSION BY OFDM
US8781008B2 (en) 2012-06-20 2014-07-15 MagnaCom Ltd. Highly-spectrally-efficient transmission using orthogonal frequency division multiplexing
US8572458B1 (en) * 2012-06-20 2013-10-29 MagnaCom Ltd. Forward error correction with parity check encoding for use in low complexity highly-spectrally efficient communications
US9166834B2 (en) 2012-06-20 2015-10-20 MagnaCom Ltd. Method and system for corrupt symbol handling for providing high reliability sequences
US9088400B2 (en) 2012-11-14 2015-07-21 MagnaCom Ltd. Hypotheses generation based on multidimensional slicing
US8811548B2 (en) 2012-11-14 2014-08-19 MagnaCom, Ltd. Hypotheses generation based on multidimensional slicing
US9118519B2 (en) 2013-11-01 2015-08-25 MagnaCom Ltd. Reception of inter-symbol-correlated signals using symbol-by-symbol soft-output demodulator
US8804879B1 (en) 2013-11-13 2014-08-12 MagnaCom Ltd. Hypotheses generation based on multidimensional slicing
US9130637B2 (en) 2014-01-21 2015-09-08 MagnaCom Ltd. Communication methods and systems for nonlinear multi-user environments
US9496900B2 (en) 2014-05-06 2016-11-15 MagnaCom Ltd. Signal acquisition in a multimode environment
US8891701B1 (en) 2014-06-06 2014-11-18 MagnaCom Ltd. Nonlinearity compensation for reception of OFDM signals
US9246523B1 (en) 2014-08-27 2016-01-26 MagnaCom Ltd. Transmitter signal shaping
US9276619B1 (en) 2014-12-08 2016-03-01 MagnaCom Ltd. Dynamic configuration of modulation and demodulation
US9191247B1 (en) 2014-12-09 2015-11-17 MagnaCom Ltd. High-performance sequence estimation system and method of operation
US9948435B2 (en) * 2015-07-20 2018-04-17 Multiphy Ltd. Seamless match point switching in MLSE-based modems
WO2021054890A1 (en) * 2019-09-20 2021-03-25 Agency For Science, Technology And Research Receiver for processing multi-channel signals received in a vhf data exchange system and method thereof

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2037824C (en) 1990-03-20 1999-11-09 Hiroshi Kubo Diversity circuit and frame phase (or sampling timing) estimation circuit using the diversity circuit
JP2683665B2 (ja) 1991-11-27 1997-12-03 日本電気株式会社 最尤系列推定装置
US5406588A (en) 1993-05-28 1995-04-11 Motorola, Inc. Method and apparatus for mitigating distortion effects in the determination of signal usability
US5363376A (en) 1993-07-30 1994-11-08 Bell Communications Research, Inc. Method and apparatus for synchronizing timing among radio ports in wireless communications systems
US5351274A (en) 1993-08-20 1994-09-27 General Electric Company Post detection selection combining diversity receivers for mobile and indoor radio channels
US5406593A (en) 1993-08-20 1995-04-11 General Electric Company Adaptive phase-locked loop employing channel state information estimation from received signal phase angles
FR2715488B1 (fr) 1994-01-21 1996-03-22 Thomson Csf Procédé et dispositif permettant à un modem de se synchroniser sur un transmetteur de données numériques par voie hertzienne en présence de brouilleurs.
FR2716761B1 (fr) 1994-02-25 1996-03-22 Thomson Csf Procédé permettant une égalisation multivoie dans un récepteur radioélectrique en présence d'interférences et de multitrajets de propagation.
FR2735635B1 (fr) 1994-03-04 1998-08-14 Thomson Csf Procede permettant une egalisation multicapteur dans un recepteur radioelectrique, en presence d'interferences et de multitrajets de propagation
JP2938337B2 (ja) * 1994-03-09 1999-08-23 三菱電機株式会社 スペクトル拡散通信用データ復調回路
US5499272A (en) * 1994-05-31 1996-03-12 Ericsson Ge Mobile Communications Inc. Diversity receiver for signals with multipath time dispersion
US5481572A (en) * 1994-08-02 1996-01-02 Ericsson Inc. Method of and apparatus for reducing the complexitiy of a diversity combining and sequence estimation receiver
US5621770A (en) 1994-08-31 1997-04-15 Motorola, Inc. Method and system for processing first and second digital signal versions of a signal in a diversity receiver
US5517535A (en) * 1994-10-13 1996-05-14 Westinghouse Electric Corp. Numerically controlled oscillator with complex exponential outputs using recursion technique
JP2689926B2 (ja) 1994-12-05 1997-12-10 日本電気株式会社 ダイバーシティ受信機
FR2732490B1 (fr) 1995-03-28 1997-04-25 Thomson Csf Procede de reception multicapteur d'une station de base d'un reseau de communication echangeant des donnees avec des mobiles, et dispositif pour sa mise en oeuvre
US5687197A (en) * 1995-07-07 1997-11-11 Motorola, Inc. Method and apparatus for detecting data symbols in a diversity communication system
US5636208A (en) * 1996-04-12 1997-06-03 Bell Communications Research, Inc. Technique for jointly performing bit synchronization and error detection in a TDM/TDMA system
CA2180924C (en) * 1996-07-10 2003-04-08 Adnan Abu-Dayya Diversity path co-channel interference reduction
US5878093A (en) * 1996-12-16 1999-03-02 Ericsson Inc. Interference rejection combining with frequency correction

Also Published As

Publication number Publication date
WO1998032243A1 (en) 1998-07-23
EP0951758B1 (en) 2005-07-20
BR9714098A (pt) 2000-03-21
AU7998798A (en) 1998-08-07
EP0951758A1 (en) 1999-10-27
CN1247653A (zh) 2000-03-15
CA2276136A1 (en) 1998-07-23
DE69733770T2 (de) 2005-12-29
JP4138014B2 (ja) 2008-08-20
DE69733770D1 (de) 2005-08-25
CN1328857C (zh) 2007-07-25
US6335954B1 (en) 2002-01-01
JP2001508266A (ja) 2001-06-19

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