(19)

(11)

EP 2 377 262 A1

(12)

(43) Date of publication: 19.10.2011 Bulletin 2011/42 (21) Application number: 08876331.3 (22) Date of filing: 29.12.2008

(51) International Patent Classification (IPC):  H04L 1/20(2006.01) (86) International application number: PCT/SE2008/051564 (87) International publication number: WO 2010/077192 (08.07.2010 Gazette 2010/27)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR (71) Applicant: Telefonaktiebolaget L M Ericsson (publ) 164 83 Stockholm (SE)	(72) Inventors: KAZMI, Muhammad S-167 39 Bromma (SE) LINDOFF, Bengt S-237 36 Bjärred (SE) (74) Representative: Kühn, Friedrich Heinrich  Ericsson AB Patent Unit LTE Torshamnsgatan 23 164 80 Stockholm 164 80 Stockholm (SE)