Wireless communication method and system for supporting call...

H - Electricity – 04 – W

Patent

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Details

H04W 36/14 (2009.01) H04W 36/24 (2009.01)

Patent

CA 2623552

A method and system for supporting a handover between a circuit-switched (CS) domain and an Internet protocol (IP) multimedia subsystem (IMS) domain to provide call continuity are disclosed. The system includes a wireless transmit/receive unit (WTRU) and a wireless network. The WTRU includes a call continuity control entity for supporting call continuity between a CS domain and an IMS domain, and a media independent handover (MIH) entity configured to provide MIH services for providing information in a media independent manner. The wireless network includes an MIH entity for providing MIH services for collecting and forwarding information in a media independent manner. A handover between the CS domain and the IMS domain is triggered based on information obtained via MIH services from the MIH entities. The information may be exchanged via an MIH information server.

L'invention concerne un procédé et un système permettant de supporter un transfert entre un domaine commuté par circuit (CS) et un domaine de sous-système multimédia de procotole Internet (IP) (IMS), en vue d'engendrer une continuité des appels. Ce système présente une unité de transmission/réception sans fil (WTRU) et un réseau sans fil. Ladite unité WTRU comprend une entité de contrôle de la continuité d'appels servant à supporter une continuité d'appels entre un domaine CS et un domaine IMS, et une entité de transfert indépendante de supports (MIH) configurée pour fournir des services MIH pour produire des informations d'une manière indépendante de supports. Le réseau sans fil possède une entité MIH fournissant des services MIH de manière à recueillir et envoyer des informations d'une façon indépendante de supports. Un transfert entre le domaine CS et le domaine IMS est déclenché selon des informations obtenues via des services MIH provenant des entités MIH. Ces informations peuvent être échangées via un serveur d'informations MIH.

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