CN1602599A - Cofd系统的位级分集合并 - Google Patents

Cofd系统的位级分集合并 Download PDF

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Publication number
CN1602599A
CN1602599A CNA028247590A CN02824759A CN1602599A CN 1602599 A CN1602599 A CN 1602599A CN A028247590 A CNA028247590 A CN A028247590A CN 02824759 A CN02824759 A CN 02824759A CN 1602599 A CN1602599 A CN 1602599A
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CN
China
Prior art keywords
symbol
bit
channel
receives
metrics calculation
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
Application number
CNA028247590A
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English (en)
Chinese (zh)
Inventor
M·格霍斯
X·欧阳
J·米汉
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.)
Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN1602599A publication Critical patent/CN1602599A/zh
Pending legal-status Critical Current

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    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • 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
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • 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
    • 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
    • H04B7/0882—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 post-detection diversity
    • H04B7/0885—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 post-detection diversity with combination
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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)
  • Artificial Intelligence (AREA)
  • Radio Transmission System (AREA)
CNA028247590A 2001-12-13 2002-11-20 Cofd系统的位级分集合并 Pending CN1602599A (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34150801P 2001-12-13 2001-12-13
US60/341,508 2001-12-13
US10/185,385 US7236548B2 (en) 2001-12-13 2002-06-28 Bit level diversity combining for COFDM system
US10/185,385 2002-06-28

Publications (1)

Publication Number Publication Date
CN1602599A true CN1602599A (zh) 2005-03-30

Family

ID=26881097

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA028247590A Pending CN1602599A (zh) 2001-12-13 2002-11-20 Cofd系统的位级分集合并

Country Status (7)

Country Link
US (1) US7236548B2 (cg-RX-API-DMAC7.html)
EP (1) EP1459469A1 (cg-RX-API-DMAC7.html)
JP (1) JP2005512458A (cg-RX-API-DMAC7.html)
KR (1) KR20040075326A (cg-RX-API-DMAC7.html)
CN (1) CN1602599A (cg-RX-API-DMAC7.html)
AU (1) AU2002348837A1 (cg-RX-API-DMAC7.html)
WO (1) WO2003050993A1 (cg-RX-API-DMAC7.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7170961B2 (en) * 2002-01-08 2007-01-30 Patrick Vandenameele-Lepla Method and apparatus for frequency-domain tracking of residual frequency and channel estimation offsets
US7039001B2 (en) * 2002-10-29 2006-05-02 Qualcomm, Incorporated Channel estimation for OFDM communication systems
US7421046B2 (en) * 2002-12-31 2008-09-02 Vixs Systems Inc. Method and apparatus for signal decoding in a diversity reception system with maximum ratio combining
US20070110172A1 (en) * 2003-12-03 2007-05-17 Australian Telecommunications Cooperative Research Channel estimation for ofdm systems
US8891349B2 (en) 2004-07-23 2014-11-18 Qualcomm Incorporated Method of optimizing portions of a frame
KR100690086B1 (ko) * 2005-01-03 2007-03-08 한국전기연구원 직교 부호화 주파수 분할 다중 방식 통신 시스템에서의주파수 오프셋 추정을 위한 방법 및 반복적 수신기
US9113364B2 (en) * 2012-08-09 2015-08-18 Microsoft Technology Licensing, Llc Extended access point
FR3009909A1 (fr) * 2013-08-23 2015-02-27 Bluwan Procede de traitement au niveau paquet des perturbations induites par la transmission

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0449327B1 (en) 1990-03-30 1998-07-15 Nec Corporation Noise-immune space diversity receiver
GB2244190A (en) 1990-05-17 1991-11-20 Orbitel Mobile Communications Receiver systems with equalisers
US5265122A (en) 1992-03-19 1993-11-23 Motorola, Inc. Method and apparatus for estimating signal weighting parameters in a diversity receiver
SE513657C2 (sv) * 1993-06-24 2000-10-16 Ericsson Telefon Ab L M Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
US6081566A (en) * 1994-08-02 2000-06-27 Ericsson, Inc. Method and apparatus for interference rejection with different beams, polarizations, and phase references
US6173014B1 (en) * 1994-08-02 2001-01-09 Telefonaktiebolaget Lm Ericsson Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radio communications system
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
US6192038B1 (en) * 1995-10-18 2001-02-20 Mdiversity Inc. Method and apparatus for wireless communication employing aggregation for digital signals
JP3180761B2 (ja) * 1997-07-23 2001-06-25 三菱電機株式会社 系列推定方法及び系列推定装置
US6130909A (en) * 1998-01-16 2000-10-10 Transamerica Business Credit Corporation Method and apparatus for equalization in a diversity receiver
EP0945989A1 (en) 1998-03-12 1999-09-29 Hitachi Micro Systems Europe Limited Viterbi decoding
US6498784B1 (en) * 1998-10-20 2002-12-24 Interdigital Technology Corporation Cancellation of pilot and traffic signals
GB9908675D0 (en) 1999-04-15 1999-06-09 British Broadcasting Corp Diversity reception method and diversity receivers
US6515978B1 (en) * 1999-04-19 2003-02-04 Lucent Technologies Inc. Methods and apparatus for downlink diversity in CDMA using Walsh codes
FR2794914B1 (fr) 1999-06-08 2002-03-01 Sagem Systeme parametrable a entrelacement temporel et frequentiel pour la transmission de donnees numeriques entre stations fixes ou mobiles
GB2355164B (en) 1999-10-07 2004-06-09 Oak Technology Inc Demodulator circuit
CA2399297C (en) 2000-02-07 2005-12-06 At&T Corp. System and method for near optimal joint channel estimation and data detection for cofdm systems
US6763074B1 (en) * 2000-11-08 2004-07-13 Skyworks Solutions, Inc. Adaptive configurable demodulation system with multiple operating modes
US8158160B2 (en) * 2001-11-13 2012-04-17 Eric Hauser Kuhrts Anti-inflammatory cyclooxygenase inhibitors

Also Published As

Publication number Publication date
EP1459469A1 (en) 2004-09-22
JP2005512458A (ja) 2005-04-28
KR20040075326A (ko) 2004-08-27
US7236548B2 (en) 2007-06-26
US20030112902A1 (en) 2003-06-19
AU2002348837A1 (en) 2003-06-23
WO2003050993A1 (en) 2003-06-19

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