WO2007099243A3 - Method of emitting a signal implementing power allocation and pathway formation, corresponding emission device and computer program product - Google Patents

Method of emitting a signal implementing power allocation and pathway formation, corresponding emission device and computer program product Download PDF

Info

Publication number
WO2007099243A3
WO2007099243A3 PCT/FR2007/050769 FR2007050769W WO2007099243A3 WO 2007099243 A3 WO2007099243 A3 WO 2007099243A3 FR 2007050769 W FR2007050769 W FR 2007050769W WO 2007099243 A3 WO2007099243 A3 WO 2007099243A3
Authority
WO
WIPO (PCT)
Prior art keywords
matrix
emitting
power
computer program
program product
Prior art date
Application number
PCT/FR2007/050769
Other languages
French (fr)
Other versions
WO2007099243A2 (en
Inventor
Julien Dumont
Philippe Loubaton
Original Assignee
France Telecom
Julien Dumont
Philippe Loubaton
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 France Telecom, Julien Dumont, Philippe Loubaton filed Critical France Telecom
Publication of WO2007099243A2 publication Critical patent/WO2007099243A2/en
Publication of WO2007099243A3 publication Critical patent/WO2007099243A3/en

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
    • H04B7/06—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
    • H04B7/0615—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 weighted versions of same signal
    • 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
    • H04B7/0413—MIMO systems
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0443—Power distribution using multiple eigenmodes utilizing "waterfilling" technique

Abstract

The invention relates to a method of emitting a signal implementing at least two transmit antennas, comprising steps of obtaining source vectors, each comprising at least one source symbol to be emitted; allocating of power (12), consisting in weighting each source symbol to be emitted by a power coefficient, delivering a weighted symbol, the power coefficients being represented by a power matrix P; forming pathways (13), consisting in multiplying each weighted symbol by an assignment vector, the assignment vectors being represented by an assignment matrix U; the matrices P and U being represented by a covariance matrix Q. According to the invention, this method comprises a step of determining a deterministic matrix M representative of the matrix Q and taking account of at least certain statistical information representative of a transmission channel between the transmit antenna and receive antenna.
PCT/FR2007/050769 2006-02-28 2007-02-09 Method of emitting a signal implementing power allocation and pathway formation, corresponding emission device and computer program product WO2007099243A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0601806A FR2897994A1 (en) 2006-02-28 2006-02-28 Digital signal transmitting method for orthogonal frequency-division multiplexing system, involves determining determinist matrix representing covariance matrix by considering statistic information including statistic parameters
FR0601806 2006-02-28

Publications (2)

Publication Number Publication Date
WO2007099243A2 WO2007099243A2 (en) 2007-09-07
WO2007099243A3 true WO2007099243A3 (en) 2007-10-18

Family

ID=37039392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/050769 WO2007099243A2 (en) 2006-02-28 2007-02-09 Method of emitting a signal implementing power allocation and pathway formation, corresponding emission device and computer program product

Country Status (2)

Country Link
FR (1) FR2897994A1 (en)
WO (1) WO2007099243A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002060138A2 (en) * 2000-10-23 2002-08-01 Qualcomm Incorporated Method and apparatus for producing a channel estimate with reduced rank
WO2005122619A1 (en) * 2004-06-14 2005-12-22 Siemens Aktiengesellschaft Method for allocating transmission capacities during a signal transmission, base station, and mobile terminal
US20060013328A1 (en) * 2004-07-15 2006-01-19 Nokia Corporation Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002060138A2 (en) * 2000-10-23 2002-08-01 Qualcomm Incorporated Method and apparatus for producing a channel estimate with reduced rank
WO2005122619A1 (en) * 2004-06-14 2005-12-22 Siemens Aktiengesellschaft Method for allocating transmission capacities during a signal transmission, base station, and mobile terminal
US20060013328A1 (en) * 2004-07-15 2006-01-19 Nokia Corporation Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ERIK G LARSSON ET AL: "Orthogonal Space-Time Block Codes: Maximum Likelihood Detection for Unknown Channels and Unstructured Interferences", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 51, no. 2, February 2003 (2003-02-01), XP011080351, ISSN: 1053-587X *

Also Published As

Publication number Publication date
WO2007099243A2 (en) 2007-09-07
FR2897994A1 (en) 2007-08-31

Similar Documents

Publication Publication Date Title
JP2008506330A5 (en)
RU2007120582A (en) METHOD AND DEVICE FOR TRANSMISSION OF DATA WITH CLOSED-CONTROLLED CONTROL
WO2010013919A3 (en) Method for transmitting data in multiple antenna system
CN103763782B (en) Dispatching method for MU-MIMO down link based on fairness related to weighting users
EP1699145A3 (en) Beam and power allocation method for MIMO communication system
WO2007015129A3 (en) Apparatus, and associated method, for allocating data for communication upon communication chanels in a multiple input communication system
WO2009035284A3 (en) Multiple beamforming method and apparatus
TW200727644A (en) Weighted fair sharing of a wireless channel using resource utilization masks
WO2010071369A3 (en) Data transmission device and method in a wireless communications system
WO2009110759A3 (en) Method of data transmission in multiple antenna system
AU2003290487A1 (en) A method for determining transmit weights
MX2008000160A (en) Apparatus, method and computer program product providing closed loop transmit antenna operation for systems using multiple antennas.
WO2010013950A3 (en) Method for transmitting data in multiple antenna system
WO2006069271A3 (en) Methods and apparatus for mitigating multi-antenna correlation effect in communication systems
JP2010529808A5 (en)
CY1107536T1 (en) TELECOMMUNICATION SYSTEM WITH DISTRIBUTION VARIETY AND DIFFERENCE BETWEEN MANY USERS
WO2009023686A3 (en) Precoding matrix feedback processes, circuits and systems
US9237556B2 (en) Method of operating access point and wireless communication system using access point
ES2287282T3 (en) PROCEDURE AND APPLIANCE TO ASSIGN RESOURCES IN A COMMUNITION SYSTEM OF MULTIPLE INPUTS AND OUTPUTS.
JP2004266818A5 (en)
WO2008051845A3 (en) Method for improving the performance of a wireless network utilizing beamforming weighting vectors
CN106850154A8 (en) The method and apparatus for transmitting control information
TW200943102A (en) Profile exchange method and system
WO2005104395A3 (en) Non-coherent high-power directed-energy system and method
US20120287981A1 (en) Multiple input multiple output and beam-forming data transmission method and device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07731594

Country of ref document: EP

Kind code of ref document: A2