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(11)

EP 3 459 304 A1

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(43) Date of publication: 27.03.2019 Bulletin 2019/13 (21) Application number: 16902027.8 (22) Date of filing: 20.05.2016

(51) International Patent Classification (IPC):  H04W 72/04(2009.01) (86) International application number: PCT/CN2016/082814 (87) International publication number: WO 2017/197642 (23.11.2017 Gazette 2017/47)

(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 Designated Validation States: MA MD (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventors: MIAO, Deshan Beijing 100016 (CN) ZHANG, Yi Beijing 102200 (CN) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karaportti 3 02610 Espoo 02610 Espoo (FI)