METHOD AND SYSTEM FOR IMPROVING ROBUSTNESS OF INTERFERENCE NULLING FOR ANTENNA ARRAYS - Patent 2057712

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EP 2 057 712 A1

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(43)	Date of publication:
	13.05.2009 Bulletin 2009/20

(21)	Application number: 07749835.0

(22)	Date of filing: 01.02.2007

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International Patent Classification (IPC):

H01Q 3/26^(2006.01)

(86)	International application number:
	PCT/US2007/002906

(87)	International publication number:
	WO 2008/088353 (24.07.2008 Gazette 2008/30)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

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Priority:

18.01.2007 US 654941

(71)	Applicant: Cisco Technology, Inc.
	San Jose, CA 95134-1706 (US)

(72)	Inventor:
	JIN, Hang Plano, TX 75025 (US)

(74)	Representative: Kazi, Ilya
	Mathys & Squire LLP 120 Holborn London EC1N 2SQ London EC1N 2SQ (GB)

(54)	METHOD AND SYSTEM FOR IMPROVING ROBUSTNESS OF INTERFERENCE NULLING FOR ANTENNA ARRAYS