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(11)

EP 2 301 223 A1

(12)

(43) Date of publication: 30.03.2011 Bulletin 2011/13 (21) Application number: 09761526.4 (22) Date of filing: 29.01.2009

(51) International Patent Classification (IPC):  H04L 29/08(2006.01) H04L 29/06(2006.01) H04W 4/02(2009.01) H04W 88/18(2009.01) (86) International application number: PCT/EP2009/050975 (87) International publication number: WO 2009/149963 (17.12.2009 Gazette 2009/51)

(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 TR Designated Extension States: AL BA RS (30) Priority: 10.06.2008 US 60279 (71) Applicant: Telefonaktiebolaget L M Ericsson (PUBL) 164 83 Stockholm (SE)	(72) Inventors: WITZEL, Andreas 52134 Herzogenrath (DE) EWERT, Joerg Christian 52076 Aachen (DE) RANKE, Karl-Peter 52134 Herzogenrath (DE) (74) Representative: Bertsch, Florian Oliver  Kraus & Weisert Patent- und Rechtsanwälte Thomas-Wimmer-Ring 15 80539 München 80539 München (DE)