(19)

(11)

EP 2 417 796 A1

(12)

(43) Date of publication: 15.02.2012 Bulletin 2012/07 (21) Application number: 09850746.0 (22) Date of filing: 31.10.2009

(51) International Patent Classification (IPC):  H04W 28/16(2009.01) (86) International application number: PCT/CN2009/074736 (87) International publication number: WO 2011/050540 (05.05.2011 Gazette 2011/18)

(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 (71) Applicant: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129 (CN)	(72) Inventors: LEGG, Peter 518129 Shenzhen (CN) ZHANG, Kai 518129 Shenzhen (CN) SOLDANI, David 518129 Shenzhen (DE) (74) Representative: Kreuz, Georg Maria  Huawei Technologies Dessauerstrasse 3 80992 Munich 80992 Munich (DE)