(19)

(11)

EP 2 550 816 A1

(12)

(43) Date of publication: 30.01.2013 Bulletin 2013/05 (21) Application number: 11712118.6 (22) Date of filing: 22.03.2011

(51) International Patent Classification (IPC):  H04W 4/06(2009.01) (86) International application number: PCT/US2011/029383 (87) International publication number: WO 2011/119579 (29.09.2011 Gazette 2011/39)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 30.03.2010 US 750218 22.03.2010 US 728489 (71) Applicant: Qualcomm Incorporated San Diego, CA 92121 (US)	(72) Inventors: BREWER, Beth, A. San Diego, California 92121 (US) BHASKARAN, Hamsini San Diego, California 92121 (US) AGGARWAL, Ashutosh San Diego, California 92121 (US) (74) Representative: Reedy, Orlaith et al Tomkins & Co 5 Dartmouth Road Dublin 6 Dublin 6 (IE)