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EP 2 832 174 A1

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(43) Date of publication: 04.02.2015 Bulletin 2015/06 (21) Application number: 13733094.0 (22) Date of filing: 26.03.2013

(51) International Patent Classification (IPC):  H04W 76/02(2009.01) H04W 72/12(2009.01) H04W 88/06(2009.01) H04L 1/00(2006.01) (86) International application number: PCT/US2013/033939 (87) International publication number: WO 2013/148728 (03.10.2013 Gazette 2013/40)

(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 Designated Extension States: BA ME (30) Priority: 26.03.2012 US 201261685891 P (71) Applicant: Apple Inc. Cupertino, CA 95014 (US)

(72) Inventors: SHI, Jianxiong Cupertino, CA 95014 (US) SEBENI, Johnson, O. Cupertino, CA 95014 (US) SU, Li Cupertino, CA 95014 (US) DAMJI, Navid Cupertino, CA 95014 (US) FLYNN, Paul, V. Cupertino, CA 95014 (US) VANGALA, Sarma, V. Cupertino, CA 95014 (US) VALLATH, Sreevalsan Cupertino, CA 95014 (US) ELANGOVAN, Thanigaivelu Cupertino, CA 95014 (US) JI, Zhu Cupertino, CA 95014 (US) (74) Representative: Gillard, Matthew Paul et al Withers & Rogers LLP 4 More London Riverside London SE1 2AU London SE1 2AU (GB)