WO2007142950A3 - Clustered mimo ofdm with variable subcarrier assignment per antenna - Google Patents

Clustered mimo ofdm with variable subcarrier assignment per antenna Download PDF

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Publication number
WO2007142950A3
WO2007142950A3 PCT/US2007/012712 US2007012712W WO2007142950A3 WO 2007142950 A3 WO2007142950 A3 WO 2007142950A3 US 2007012712 W US2007012712 W US 2007012712W WO 2007142950 A3 WO2007142950 A3 WO 2007142950A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
antenna
carrier frequency
transmitting
amplification
Prior art date
Application number
PCT/US2007/012712
Other languages
French (fr)
Other versions
WO2007142950A2 (en
Inventor
Robert Gyorgy Egri
Laurent Claude Perraud
Original Assignee
Ma Com Inc
Robert Gyorgy Egri
Laurent Claude Perraud
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 Ma Com Inc, Robert Gyorgy Egri, Laurent Claude Perraud filed Critical Ma Com Inc
Priority to EP07795476A priority Critical patent/EP2092678A2/en
Publication of WO2007142950A2 publication Critical patent/WO2007142950A2/en
Publication of WO2007142950A3 publication Critical patent/WO2007142950A3/en

Links

Classifications

    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2637—Modulators with direct modulation of individual subcarriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Radio Transmission System (AREA)
  • Amplifiers (AREA)

Abstract

The present invention provides a method and system for transmitting a multi- frequency signal composed of discrete tones of constant envelope parts that are amplified by a bank of fully saturated tamplifiers operating in their most power efficient mode. After amplification and transmission, the signals are multiplexed in the air as opposed to multiplexing before amplification that allows for more efficient amplification as well. In a preferred embodiment, the system has two or more transmitting antennas, and the method comprises: (a) generating a first signal of a first carrier frequency and a second signal of a second carrier frequency; (b) transmitting the first signal of a first carrier frequency on a first antenna and the first signal of a second carrier signal on a second antenna for a predetermined time period; and (c) transmitting a second signal of the second carrier frequency on said first antenna and a second signal of the first carrier frequency on the second antenna for the predetermined time period. Preferably, the signals are transmitted using an amplifier that is essentially fully saturated.
PCT/US2007/012712 2006-05-31 2007-05-30 Clustered mimo ofdm with variable subcarrier assignment per antenna WO2007142950A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07795476A EP2092678A2 (en) 2006-05-31 2007-05-30 Clustered mimo ofdm with variable subcarrier assignment per antenna

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80990106P 2006-05-31 2006-05-31
US60/809,901 2006-05-31

Publications (2)

Publication Number Publication Date
WO2007142950A2 WO2007142950A2 (en) 2007-12-13
WO2007142950A3 true WO2007142950A3 (en) 2008-02-28

Family

ID=38802003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/012712 WO2007142950A2 (en) 2006-05-31 2007-05-30 Clustered mimo ofdm with variable subcarrier assignment per antenna

Country Status (3)

Country Link
US (1) US8270513B2 (en)
EP (1) EP2092678A2 (en)
WO (1) WO2007142950A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9602228B1 (en) 2013-01-18 2017-03-21 Gregory R. Warnes Method and apparatus for transmission and reception of a signal over multiple frequencies with time offset encoding at each frequency
NL1040028C2 (en) * 2013-01-29 2014-08-04 Avenir D Or B V L Antenna system.
FR3002345A1 (en) * 2013-02-15 2014-08-22 St Microelectronics Sa METHOD AND DEVICE FOR TRANSMITTING A RADIO FREQUENCY SIGNAL
US9717176B2 (en) * 2014-09-15 2017-08-01 Kondex Corporation Agricultural blades and machine parts with amorphous metal laser cladding
WO2017092797A1 (en) * 2015-12-02 2017-06-08 Nokia Solutions And Networks Oy Method, system and apparatus
CN107104605A (en) * 2016-02-23 2017-08-29 成都凯天电子股份有限公司 Multichannel power supply equipment for sensor
US10879854B2 (en) * 2018-01-26 2020-12-29 Skyworks Solutions, Inc. Universal memory-based model for nonlinear power amplifier behaviors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914933A (en) * 1996-03-08 1999-06-22 Lucent Technologies Inc. Clustered OFDM communication system

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732113A (en) 1996-06-20 1998-03-24 Stanford University Timing and frequency synchronization of OFDM signals
US6130918A (en) 1997-12-01 2000-10-10 Nortel Networks Limited Method and apparatus for reducing the peak-to-average ratio in a multicarrier communication system
EP0961448B1 (en) 1998-05-26 2009-01-07 Panasonic Corporation Modulator, demodulator, and transmission system for use in OFDM transmission
US7079584B2 (en) 1998-08-10 2006-07-18 Kamilo Feher OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation
DE19962341C1 (en) 1999-12-23 2001-08-23 Bosch Gmbh Robert Transmitter for sending signals over radio channels and method for sending signals over radio channels
US6392588B1 (en) 2000-05-03 2002-05-21 Ramot University Authority For Applied Research & Industrial Development Ltd. Multifrequency signal structure for radar systems
US6882619B1 (en) 2001-02-21 2005-04-19 At&T Corp. Interference suppressing OFDM method for wireless communications
US7313193B2 (en) 2001-05-15 2007-12-25 Qualcomm Incorporated Multi–tone signal transmission methods and apparatus
US7184492B2 (en) * 2003-02-10 2007-02-27 Ericsson Inc. Using antenna arrays in multipath environment
US7653138B2 (en) 2003-06-24 2010-01-26 Ikanos Communications, Inc. Technique for improving multiple-channel multi-tone transmissions
US7151476B2 (en) 2004-06-28 2006-12-19 M/A-Com, Inc. Radar system having a beamless emission signature
JP2006054705A (en) * 2004-08-12 2006-02-23 Toshiba Corp Wireless transmitter and transmission method
US7668251B2 (en) * 2005-01-04 2010-02-23 Texas Instruments Incorporated Scalable post-channel estimate phase corrector, method of correction and MIMO communication system employing the corrector and method
US7466788B2 (en) * 2005-03-28 2008-12-16 Tyco Electronics Corporation Electronic applicator counter
US7280810B2 (en) * 2005-08-03 2007-10-09 Kamilo Feher Multimode communication system
JP4768368B2 (en) * 2005-09-09 2011-09-07 富士通株式会社 Wireless communication system, transmitter and receiver
JP2007116637A (en) * 2005-10-24 2007-05-10 Fujitsu Ltd Wireless communication method, wireless communication system, receiving apparatus, and transmitting apparatus
US7873385B2 (en) * 2006-04-05 2011-01-18 Palm, Inc. Antenna sharing techniques

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914933A (en) * 1996-03-08 1999-06-22 Lucent Technologies Inc. Clustered OFDM communication system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CIMINI L J ET AL: "CLUSTERED OFDM WITH TRANSMITTER DIVERSITY AND CODING", COMMUNICATIONS: THE KEY TO GLOBAL PROSPERITY. GLOBECOM 1996. LONDON, NOV. 18 - 22, 1996, GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM), NEW YORK, IEEE, US, vol. VOL. 1, 18 November 1996 (1996-11-18), pages 703 - 707, XP000742231, ISBN: 0-7803-3337-3 *
KAISER S ED - INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS: "SPATIAL TRANSMIT DIVERSITY TECHNIQUES FOR BROADBAND OFDM SYSTEMS", GLOBECOM'00. 2000 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE. SAN FRANCICO, CA, NOV. 27 - DEC. 1, 2000, IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, NEW YORK, NY : IEEE, US, vol. VOL. 3 OF 3, 27 November 2000 (2000-11-27), pages 1824 - 1828, XP001195742, ISBN: 0-7803-6452-X *
OUACHANI I ET AL: "Trading rate versus diversity in space-time-frequency block coding schemes", CONTROL, COMMUNICATIONS AND SIGNAL PROCESSING, 2004. FIRST INTERNATIONAL SYMPOSIUM ON HAMMAMET, TUNISIA MARCH 21-24, 2004, PISCATAWAY, NJ, USA,IEEE, 21 March 2004 (2004-03-21), pages 171 - 174, XP010705669, ISBN: 0-7803-8379-6 *

Also Published As

Publication number Publication date
WO2007142950A2 (en) 2007-12-13
US20070280372A1 (en) 2007-12-06
EP2092678A2 (en) 2009-08-26
US8270513B2 (en) 2012-09-18

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