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(11)

EP 3 298 856 A1

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(43) Date of publication: 28.03.2018 Bulletin 2018/13 (21) Application number: 15724245.4 (22) Date of filing: 19.05.2015

(51) International Patent Classification (IPC):  H04W 76/04(0000.00) H04W 36/00(2009.01) (86) International application number: PCT/EP2015/060944 (87) International publication number: WO 2016/184500 (24.11.2016 Gazette 2016/47)

(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 (71) Applicant: Telefonaktiebolaget LM Ericsson (publ) 164 83 Stockholm (SE)	(72) Inventor: BERGQUIST, Gunnar SE-164 45 Kista (SE) (74) Representative: Ericsson  Patent Development Torshamnsgatan 21-23 164 80 Stockholm 164 80 Stockholm (SE)