(19)

(11)

EP 2 888 905 A2

(12)

(88) Date of publication A3: 17.04.2014 (43) Date of publication: 01.07.2015 Bulletin 2015/27 (21) Application number: 13756374.8 (22) Date of filing: 23.08.2013

(51) International Patent Classification (IPC):  H04W 36/00(2009.01) H04W 48/16(2009.01) (86) International application number: PCT/EP2013/067545 (87) International publication number: WO 2014/029870 (27.02.2014 Gazette 2014/09)

(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: 24.08.2012 CN 201210305958 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventors: LAMPE, Mattias Beijing 100102 (CN) TIAN, Ji Feng Beijing 100102 (CN) (74) Representative: Isarpatent  Patent- und Rechtsanwälte Friedrichstrasse 31 80801 München 80801 München (DE)