(19)

(11)

EP 2 301 191 A1

(12)

(43) Date of publication: 30.03.2011 Bulletin 2011/13 (21) Application number: 09794730.3 (22) Date of filing: 01.07.2009

(51) International Patent Classification (IPC):  H04L 12/14(2006.01) H04M 15/10(2006.01) H04M 15/08(2006.01) H04W 4/24(2009.01) (86) International application number: PCT/SE2009/050849 (87) International publication number: WO 2010/005376 (14.01.2010 Gazette 2010/02)

(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 MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: AL BA RS (30) Priority: 11.07.2008 US 171641 27.10.2008 US 258990 (71) Applicant: Telefonaktiebolaget L M Ericsson (PUBL) 164 83 Stockholm (SE)	(72) Inventors: ABRAHAMSSON, Andreas S-SE-371 42 Karlskrona (SE) SILVANDER, Johan S-SE-371 36 Karlskrona (SE) TÖRNKVIST, Robert S-SE-374 40 Karlshamn (SE) WAHLBERG, Joachim S-SE-370 10 Bräkne-Hoby (SE) (74) Representative: Norin, Klas  Ericsson AB Patent Unit Service Layer & Multimedia Torhamnsgatan 21-23 164 80 Stockholm 164 80 Stockholm (SE)