(19)

(11)

EP 2 847 873 A1

(12)

(43) Date of publication: 18.03.2015 Bulletin 2015/12 (21) Application number: 13779061.4 (22) Date of filing: 09.04.2013

(51) International Patent Classification (IPC):  H04B 5/06(2006.01) H04R 9/02(2006.01) (86) International application number: PCT/FI2013/050386 (87) International publication number: WO 2013/156672 (24.10.2013 Gazette 2013/43)

(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: 18.04.2012 US 201213449707 07.06.2012 US 201261656595 P (71) Applicant: Nokia Corporation 02610 Espoo (FI)	(72) Inventor: SLOTTE, Benedict FI-20500 Turku (FI) (74) Representative: Nokia Corporation  Intellectual Property Department Karakaari 7 02610 Espoo 02610 Espoo (FI)