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Method for connecting multimedia subsystem of circuit field terminal and its realizing device

A multimedia subsystem and terminal access technology, applied in the field of network communication, can solve problems such as inability to use multimedia value-added services

Active Publication Date: 2009-10-14
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a method for a circuit domain terminal to access the multimedia subsystem IMS domain and its implementation device, so as to solve the technical problem that existing circuit domain user terminals cannot use the multimedia value-added services provided by the IMS domain

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  • Method for connecting multimedia subsystem of circuit field terminal and its realizing device
  • Method for connecting multimedia subsystem of circuit field terminal and its realizing device
  • Method for connecting multimedia subsystem of circuit field terminal and its realizing device

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Embodiment Construction

[0025] see figure 1 , which is a schematic flowchart of a method for accessing a multimedia subsystem IMS domain by a CS domain user terminal disclosed in the present invention. This embodiment mainly introduces the method for accessing the IMS domain when the CS domain user terminal serves as the calling device.

[0026] In order to introduce the solution of the present invention more clearly, several functional entities involved in the method are firstly introduced. The user terminal UE is a terminal serving the circuit domain, used as a calling device in this embodiment, and a mobile switching center MSC that provides services for the calling terminal. The calling call state control function CSCF belongs to the functional entities of the IP Multimedia Subsystem IMS domain, and mainly includes a proxy CSCF (P-CSCF), a serving CSCF (S-CSCF) and an inquiry CSCF (I-CSCF). Among them, the P-CSCF is the first contact point of the user terminal in the IP multimedia subsystem; th...

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Abstract

The invention discloses a method for a circuit domain terminal to access a multimedia subsystem. A mobile switching center MSC simulates an IMS terminal to initiate a session initialization protocol SIP signaling to connect the circuit domain terminal to a multimedia subsystem IMS domain. The invention also discloses a method for finding a called terminal in the circuit domain through the multimedia subsystem. Mobile switching center MSC; the MSC receives the INVITE signaling from the IMS domain, analyzes the number of the called CS domain terminal, and connects to the called terminal.

Description

technical field [0001] The present invention relates to the field of network communication, in particular to a method for a circuit domain terminal to access a multimedia subsystem and an implementation device thereof. Background technique [0002] Now the mobile network is based on the system of the circuit domain, and the function of the user terminal is relatively single, and generally only supports voice and simple data services, and IMS (IP Multimedia Subsystem), as the architecture of the next-generation , billing, an open service provision system, and the ability to easily integrate with IT systems are gaining more and more support from telecom equipment manufacturers and telecom operators. Through the IMS system, multimedia value-added services that cannot be provided by the circuit domain can be provided to 3G multimedia user terminals, such as presence services (Presence), instant messaging, and video conferences. [0003] However, the existing circuit domain netw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/02H04W80/10
Inventor 蔡庆丰张新宇
Owner XFUSION DIGITAL TECH CO LTD