DE69934951T2 - Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMA - Google Patents

Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMA Download PDF

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Publication number
DE69934951T2
DE69934951T2 DE69934951T DE69934951T DE69934951T2 DE 69934951 T2 DE69934951 T2 DE 69934951T2 DE 69934951 T DE69934951 T DE 69934951T DE 69934951 T DE69934951 T DE 69934951T DE 69934951 T2 DE69934951 T2 DE 69934951T2
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DE
Germany
Prior art keywords
signals
symbol
circuit
estimation
signal
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
DE69934951T
Other languages
German (de)
English (en)
Other versions
DE69934951D1 (de
Inventor
Anand G. Richardson Dabak
Srinath Hosur (nmi), Dallas
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of DE69934951D1 publication Critical patent/DE69934951D1/de
Application granted granted Critical
Publication of DE69934951T2 publication Critical patent/DE69934951T2/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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • 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
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0669—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different channel coding between antennas
    • 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
    • H04L1/0618—Space-time coding
    • 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
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69934951T 1998-10-07 1999-10-07 Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMA Expired - Lifetime DE69934951T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US103440 1979-12-14
US10344098P 1998-10-07 1998-10-07
US19689698A 1998-11-19 1998-11-19
US196896 1998-11-19

Publications (2)

Publication Number Publication Date
DE69934951D1 DE69934951D1 (de) 2007-03-15
DE69934951T2 true DE69934951T2 (de) 2007-10-25

Family

ID=26800464

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69934951T Expired - Lifetime DE69934951T2 (de) 1998-10-07 1999-10-07 Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMA

Country Status (4)

Country Link
EP (1) EP0993129B1 (enExample)
JP (1) JP2000201102A (enExample)
KR (1) KR100773199B1 (enExample)
DE (1) DE69934951T2 (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6853689B1 (en) 1999-07-15 2005-02-08 Telefonaktiebolaget Lm Ericsson Method and apparatus for channel estimation with transmit diversity
US6317410B1 (en) * 1999-09-13 2001-11-13 Lucent Technologies Inc. Receiver architecture employing space time spreading and orthogonal transmit diversity techniques
JP2001168777A (ja) * 1999-12-06 2001-06-22 Matsushita Electric Ind Co Ltd 通信端末装置及び無線通信方法
JP3338421B2 (ja) 2000-04-28 2002-10-28 松下電器産業株式会社 無線受信装置および無線受信方法
US7154958B2 (en) * 2000-07-05 2006-12-26 Texas Instruments Incorporated Code division multiple access wireless system with time reversed space time block transmitter diversity
EP2262157A3 (en) 2000-07-05 2011-03-23 Sony Deutschland Gmbh Pilot pattern design for a STTD scheme in an OFDM system
DE10040447A1 (de) * 2000-08-18 2002-02-28 Siemens Ag Verfahren zur Kanalschätzung in einem Funksystem, insbesondere einem Mobilfunksystem
JP3607605B2 (ja) * 2000-12-04 2005-01-05 埼玉日本電気株式会社 Ｗｃｄｍａ無線基地局
US20020110108A1 (en) * 2000-12-07 2002-08-15 Younglok Kim Simple block space time transmit diversity using multiple spreading codes
EP1650892A1 (en) * 2000-12-13 2006-04-26 Interdigital Technology Corporation Modified block space time transmit diversity decoder
US7095731B2 (en) * 2000-12-13 2006-08-22 Interdigital Technology Corporation Modified block space time transmit diversity encoder
KR100698199B1 (ko) * 2001-06-05 2007-03-22 엘지전자 주식회사 전송 안테나 다이버시티 방법
US7149258B2 (en) 2001-11-28 2006-12-12 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for estimation of phase offset between communication channels
US7085332B2 (en) 2001-12-14 2006-08-01 Ericsson, Inc. Method and apparatus for two-user joint demodulation in a system having transmit diversity
US6765952B2 (en) * 2002-05-06 2004-07-20 Qualcomm Incorporated Transmit diversity pilot processing
US7508798B2 (en) * 2002-12-16 2009-03-24 Nortel Networks Limited Virtual mimo communication system
US9118515B2 (en) 2014-01-08 2015-08-25 Freescale Semiconductor, Inc. Channel estimation in wireless communication

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5648983A (en) * 1995-04-24 1997-07-15 Lucent Technologies Inc. CDMA rake receiver with sub-chip resolution
CA2186793C (en) * 1995-11-13 2000-12-19 Vijitha Weerackody Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers

Also Published As

Publication number Publication date
DE69934951D1 (de) 2007-03-15
EP0993129A3 (en) 2003-05-02
JP2000201102A (ja) 2000-07-18
EP0993129A2 (en) 2000-04-12
EP0993129B1 (en) 2007-01-24
KR100773199B1 (ko) 2007-11-02
KR20000028903A (ko) 2000-05-25

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