EP1825611A4 - Channel estimation method based on pilot diversity - Google Patents

Channel estimation method based on pilot diversity

Info

Publication number
EP1825611A4
EP1825611A4 EP05821857A EP05821857A EP1825611A4 EP 1825611 A4 EP1825611 A4 EP 1825611A4 EP 05821857 A EP05821857 A EP 05821857A EP 05821857 A EP05821857 A EP 05821857A EP 1825611 A4 EP1825611 A4 EP 1825611A4
Authority
EP
European Patent Office
Prior art keywords
method based
channel estimation
estimation method
diversity
pilot
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.)
Withdrawn
Application number
EP05821857A
Other languages
German (de)
French (fr)
Other versions
EP1825611A1 (en
Inventor
Byoung-Gi Kim
Kun-Seok Kang
Do-Seob Ahn
Ho-Jin Lee
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.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
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 Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of EP1825611A1 publication Critical patent/EP1825611A1/en
Publication of EP1825611A4 publication Critical patent/EP1825611A4/en
Withdrawn legal-status Critical Current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
    • H04L25/0204—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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
EP05821857A 2004-12-13 2005-12-13 Channel estimation method based on pilot diversity Withdrawn EP1825611A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040104747A KR100581083B1 (en) 2004-12-13 2004-12-13 Method of channel estimation using advanced pilot diversity
PCT/KR2005/004262 WO2006065053A1 (en) 2004-12-13 2005-12-13 Channel estimation method based on pilot diversity

Publications (2)

Publication Number Publication Date
EP1825611A1 EP1825611A1 (en) 2007-08-29
EP1825611A4 true EP1825611A4 (en) 2012-07-25

Family

ID=36588076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05821857A Withdrawn EP1825611A4 (en) 2004-12-13 2005-12-13 Channel estimation method based on pilot diversity

Country Status (3)

Country Link
EP (1) EP1825611A4 (en)
KR (1) KR100581083B1 (en)
WO (1) WO2006065053A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8391253B2 (en) 2008-11-20 2013-03-05 Telefonaktiebolaget L M Ericsson (Publ) Time-division multiplexed pilot signal for integrated mobile broadcasts
US9674002B2 (en) * 2012-10-09 2017-06-06 Telefonaktiebolaget Lm Ericsson (Publ) Channel estimation in a multi-antenna wireless communications system
CN103236995B (en) * 2013-04-24 2017-04-12 华为技术有限公司 Channel estimation method and user equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002089358A1 (en) * 2001-04-26 2002-11-07 Nokia Corporation Data transmission method and equipment
EP1469686A1 (en) * 2002-01-18 2004-10-20 Fujitsu Limited Method and apparatus for controlling feedback in closed loop transmission diversity

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100689398B1 (en) * 1999-10-09 2007-03-08 삼성전자주식회사 Method and apparatus for controling transmit antenna diversity of mobile communication system
KR100330222B1 (en) * 2000-05-16 2002-03-25 윤종용 Apparatus for demodulating channel and method thereof in mobile telecommunication system
JP2003304177A (en) * 2002-04-11 2003-10-24 Matsushita Electric Ind Co Ltd Radio receiving method and communication terminal device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002089358A1 (en) * 2001-04-26 2002-11-07 Nokia Corporation Data transmission method and equipment
EP1469686A1 (en) * 2002-01-18 2004-10-20 Fujitsu Limited Method and apparatus for controlling feedback in closed loop transmission diversity

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "CR 25.211-079: Clarification of downlink phase reference", 3GPP DRAFT; R1-00-1187_CR25211-079_DED_PILOT, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Pusan, Korea; 20001007, 7 October 2000 (2000-10-07), XP050093438 *
See also references of WO2006065053A1 *

Also Published As

Publication number Publication date
EP1825611A1 (en) 2007-08-29
KR100581083B1 (en) 2006-05-22
WO2006065053A1 (en) 2006-06-22

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Legal Events

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Effective date: 20120622

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