WO2010059690A3 - Compensation of beamforming errors in a communications system having widely spaced antenna elements - Google Patents

Compensation of beamforming errors in a communications system having widely spaced antenna elements Download PDF

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Publication number
WO2010059690A3
WO2010059690A3 PCT/US2009/064942 US2009064942W WO2010059690A3 WO 2010059690 A3 WO2010059690 A3 WO 2010059690A3 US 2009064942 W US2009064942 W US 2009064942W WO 2010059690 A3 WO2010059690 A3 WO 2010059690A3
Authority
WO
WIPO (PCT)
Prior art keywords
antenna elements
communications system
methods
complex weights
compensation
Prior art date
Application number
PCT/US2009/064942
Other languages
French (fr)
Other versions
WO2010059690A2 (en
Inventor
G. Patrick Martin
Kathleen Minear
John Roach
Allan V. Dianic
William C. Adams, Jr.
Original Assignee
Harris Corporation
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 Harris Corporation filed Critical Harris Corporation
Priority to EP09756627A priority Critical patent/EP2366207A2/en
Publication of WO2010059690A2 publication Critical patent/WO2010059690A2/en
Publication of WO2010059690A3 publication Critical patent/WO2010059690A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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
    • 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
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • 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
    • H04B7/0617—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 for beam forming
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting

Abstract

Systems and methods for operating a communications system. The methods involve computing one or more complex weights to be applied to transmit signals and receive signals by beamformers. The complex weights are based at least on configuration data for the communications system. The methods also involve applying a first plurality of weight corrections to the complex weights based on phasing errors occurring in a communication path inclusive of a control system and antenna elements. The methods further involve applying a second plurality of weight corrections to the complex weights based on phase differences at the antenna elements relative to a reference location for the receive signals.
PCT/US2009/064942 2008-11-19 2009-11-18 Compensation of beamforming errors in a communications system having widely spaced antenna elements WO2010059690A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09756627A EP2366207A2 (en) 2008-11-19 2009-11-18 Compensation of beamforming errors in a communications system having widely spaced antenna elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/273,760 2008-11-19
US12/273,760 US7969358B2 (en) 2008-11-19 2008-11-19 Compensation of beamforming errors in a communications system having widely spaced antenna elements

Publications (2)

Publication Number Publication Date
WO2010059690A2 WO2010059690A2 (en) 2010-05-27
WO2010059690A3 true WO2010059690A3 (en) 2010-07-15

Family

ID=41534871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/064942 WO2010059690A2 (en) 2008-11-19 2009-11-18 Compensation of beamforming errors in a communications system having widely spaced antenna elements

Country Status (3)

Country Link
US (1) US7969358B2 (en)
EP (1) EP2366207A2 (en)
WO (1) WO2010059690A2 (en)

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Also Published As

Publication number Publication date
US7969358B2 (en) 2011-06-28
US20100123625A1 (en) 2010-05-20
WO2010059690A2 (en) 2010-05-27
EP2366207A2 (en) 2011-09-21

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