(19)

(11)

EP 2 673 832 A1

(12)

(43) Date of publication: 18.12.2013 Bulletin 2013/51 (21) Application number: 11707723.0 (22) Date of filing: 11.02.2011

(51) International Patent Classification (IPC):  H01Q 1/12(2006.01) E04H 12/00(2006.01) H01Q 1/44(2006.01) (86) International application number: PCT/SE2011/050150 (87) International publication number: WO 2012/108799 (16.08.2012 Gazette 2012/33)

(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 (71) Applicant: Telefonaktiebolaget L M Ericsson (PUBL) 164 83 Stockholm (SE)	(72) Inventors: HÄGER, Peter S-182 63 Djursholm (SE) RÖHL, Anders S-122 46 Enskede (SE) (74) Representative: Kühn, Friedrich Heinrich  Ericsson AB Patent Unit Kista RAN 1 164 80 Stockholm 164 80 Stockholm (SE)