(19)

(11)

EP 2 965 498 A1

(12)

(43) Date of publication: 13.01.2016 Bulletin 2016/02 (21) Application number: 14707139.3 (22) Date of filing: 27.02.2014

(51) International Patent Classification (IPC):  H04M 15/00(2006.01) H04L 12/14(2006.01) (86) International application number: PCT/EP2014/053796 (87) International publication number: WO 2014/135428 (12.09.2014 Gazette 2014/37)

(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: 07.03.2013 IN CH09782013 (71) Applicant: Alcatel Lucent 92100 Boulogne-Billancourt (FR)	(72) Inventors: RUSTAGI, Saket Gurgaon 122016 (IN) SINGH, Paras Gurgaon 122016 (IN) (74) Representative: Mouney, Jérôme  Alcatel-Lucent International 148/152 route de la Reine 92100 Boulogne-Billancourt 92100 Boulogne-Billancourt (FR)