CA2628374C - Etalonnage de reseaux d'antennes pour systemes de communication radio entrees multiples sorties multiples - Google Patents

Etalonnage de reseaux d'antennes pour systemes de communication radio entrees multiples sorties multiples Download PDF

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Publication number
CA2628374C
CA2628374C CA2628374A CA2628374A CA2628374C CA 2628374 C CA2628374 C CA 2628374C CA 2628374 A CA2628374 A CA 2628374A CA 2628374 A CA2628374 A CA 2628374A CA 2628374 C CA2628374 C CA 2628374C
Authority
CA
Canada
Prior art keywords
antennas
access
access terminals
antenna
cndot
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 - Fee Related
Application number
CA2628374A
Other languages
English (en)
Other versions
CA2628374A1 (fr
Inventor
Ayman Fawzy Naguib
Alexei Gorokhov
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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
Priority claimed from US11/398,077 external-priority patent/US8498669B2/en
Priority claimed from US11/405,944 external-priority patent/US8280430B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CA2628374A1 publication Critical patent/CA2628374A1/fr
Application granted granted Critical
Publication of CA2628374C publication Critical patent/CA2628374C/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/267—Phased-array testing or checking devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

L'invention concerne l'étalonnage d'une chaîne de transmission d'un dispositif transmettant des informations à plusieurs dispositifs sur des liaisons radio et l'étalonnage de chaînes de réception des dispositifs multiples recevant des informations sur l'une des liaisons radio utilisant chacune des estimations des différentes antennes d'un terminal d'accès sous forme d'une estimation séparée.
CA2628374A 2005-11-02 2006-11-02 Etalonnage de reseaux d'antennes pour systemes de communication radio entrees multiples sorties multiples Expired - Fee Related CA2628374C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US73302105P 2005-11-02 2005-11-02
US60/733,021 2005-11-02
US11/398,077 US8498669B2 (en) 2005-06-16 2006-04-04 Antenna array calibration for wireless communication systems
US11/398,077 2006-04-04
US11/405,944 US8280430B2 (en) 2005-11-02 2006-04-17 Antenna array calibration for multi-input multi-output wireless communication systems
US11/405,944 2006-04-17
PCT/US2006/060502 WO2007056676A2 (fr) 2005-11-02 2006-11-02 Etalonnage de reseaux d'antennes pour systemes de communication radio entrees multiples sorties multiples

Publications (2)

Publication Number Publication Date
CA2628374A1 CA2628374A1 (fr) 2007-05-18
CA2628374C true CA2628374C (fr) 2013-11-05

Family

ID=38038657

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2628374A Expired - Fee Related CA2628374C (fr) 2005-11-02 2006-11-02 Etalonnage de reseaux d'antennes pour systemes de communication radio entrees multiples sorties multiples

Country Status (5)

Country Link
EP (1) EP1943750A2 (fr)
KR (1) KR101019394B1 (fr)
BR (1) BRPI0618184A2 (fr)
CA (1) CA2628374C (fr)
WO (1) WO2007056676A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090093222A1 (en) * 2007-10-03 2009-04-09 Qualcomm Incorporated Calibration and beamforming in a wireless communication system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6615024B1 (en) * 1998-05-01 2003-09-02 Arraycomm, Inc. Method and apparatus for determining signatures for calibrating a communication station having an antenna array
US6888809B1 (en) * 2000-01-13 2005-05-03 Lucent Technologies Inc. Space-time processing for multiple-input, multiple-output, wireless systems
US8134976B2 (en) * 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
EP1875632B1 (fr) * 2005-04-22 2012-06-27 Qualcomm Incorporated Calibrage de reseau d'antennes pour systemes de communication sans fil

Also Published As

Publication number Publication date
KR20080069227A (ko) 2008-07-25
WO2007056676A2 (fr) 2007-05-18
EP1943750A2 (fr) 2008-07-16
CA2628374A1 (fr) 2007-05-18
KR101019394B1 (ko) 2011-03-07
WO2007056676A3 (fr) 2007-08-02
BRPI0618184A2 (pt) 2011-08-23

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EEER Examination request
MKLA Lapsed

Effective date: 20201102