(19)
(11) EP 2 426 852 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
16.12.2015 Bulletin 2015/51

(45) Mention of the grant of the patent:
21.10.2015 Bulletin 2015/43

(21) Application number: 09843894.8

(22) Date of filing: 21.07.2009
(51) International Patent Classification (IPC): 
H04L 9/08(2006.01)
 H04L 9/32(2006.01)
(86) International application number:
PCT/CN2009/072859
(87) International publication number:
WO 2010/124482 (04.11.2010 Gazette 2010/44)

(54)

METHOD AND SYSTEM FOR REALIZING SECURE FORKING CALL SESSION IN IP MULTI-MEDIA SUBSYSTEM

VERFAHREN UND SYSTEM ZUM REALISIEREN EINER SICHEREN FORKING-RUFSITZUNG IN EINEM IP-MULTIMEDIA-SUBSYSTEM

PROCÉDÉ ET SYSTÈME POUR RÉALISER UNE SESSION D'APPEL DE RAMIFICATION SÉCURISÉE DANS UN SOUS-SYSTÈME MULTIMÉDIA IP

(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

(30) Priority: 30.04.2009 CN 200910083288

(43) Date of publication of application:
07.03.2012 Bulletin 2012/10

(73) Proprietor: ZTE Corporation
Shenzhen, Guangdong 518057 (CN)

(72) Inventors:
  • TIAN, Tian
    Shenzhen Guangdong 518057 (CN)
  • ZHU, Yunwen
    Shenzhen Guangdong 518057 (CN)
  • WEI, Yinxing
    Shenzhen Guangdong 518057 (CN)
  • TENG, Zhimeng
    Shenzhen Guangdong 518057 (CN)

(74) Representative: Kuhnen & Wacker 
Patent- und Rechtsanwaltsbüro Prinz-Ludwig-Straße 40A
85354 Freising
85354 Freising (DE)


(56) References cited: : 
CN-A- 101 110 791
 US-A1- 2008 123 849
   
  • "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; IMS media plane security (Release 8)", 3GPP STANDARD; 3GPP TR 33.828, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. V1.0.0, 1 March 2009 (2009-03-01), pages 1-56, XP050376903,
  • "Chapter 12: Key Establishment Protocols ED - Menezes A J; Van Oorschot P C; Vanstone S A", HANDBOOK OF APPLIED CRYPTOGRAPHY; [CRC PRESS SERIES ON DISCRETE MATHEMATICES AND ITS APPLICATIONS], CRC PRESS, BOCA RATON, FL, US, PAGE(S) 489 - 541 , 1 October 1996 (1996-10-01), XP001525012, ISBN: 978-0-8493-8523-0 Retrieved from the Internet: URL:http://www.cacr.math.uwaterloo.ca/hac/
  • 3RD GENERATION PARTNERSHIP PROJECT March 2009,
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).