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(11)

EP 2 845 369 A1

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(43) Date of publication: 11.03.2015 Bulletin 2015/11 (21) Application number: 12718650.0 (22) Date of filing: 02.05.2012

(51) International Patent Classification (IPC):  H04L 29/08(2006.01) H04L 29/06(2006.01) (86) International application number: PCT/EP2012/057974 (87) International publication number: WO 2013/164017 (07.11.2013 Gazette 2013/45)

(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 (71) Applicant: Huawei Technologies Co., Ltd Shenzhen, Guangdong 518129 (CN)	(72) Inventor: RODRIGUEZ, Daniel 80992 Munich (DE) (74) Representative: Kreuz, Georg Maria  Huawei Technologies Duesseldorf GmbH Messerschmittstrasse 4 80992 München 80992 München (DE)