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(11)

EP 2 742 714 A1

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(43) Date of publication: 18.06.2014 Bulletin 2014/25 (21) Application number: 12823759.1 (22) Date of filing: 08.08.2012

(51) International Patent Classification (IPC):  H04W 24/00(2009.01) H04W 72/12(2009.01) H04W 16/28(2009.01) (86) International application number: PCT/CA2012/050538 (87) International publication number: WO 2013/023290 (21.02.2013 Gazette 2013/08)

(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: 12.08.2011 US 201161523056 P 30.09.2011 US 201161541387 P 10.07.2012 US 201213545632 (71) Applicant: BlackBerry Limited Waterloo, ON N2K 0A7 (CA)	(72) Inventors: EBRAHIMI TAZEH MAHALLEH, Masoud Kanata, Ontario K2K 3K1 (CA) GAO, Shiwei Kanata, Ontario K2K 3K1 (CA) JIA, Yongkang Kanata, Ontario K2K 3K1 (CA) TABET, Tarik Kanata, Ontario K2K 3K1 (CA) XU, Hua Kanata, Ontario K2K 3K1 (CA) (74) Representative: Noble, Nicholas et al Kilburn & Strode LLP 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)