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Urgent call implementing method and system for IP multimedia subsystem centralized control business

A multimedia subsystem and emergency call technology, which is applied in the communication field, can solve the problems that ICS users cannot provide IMS emergency call services, cannot meet the requirements of emergency call processing, and achieve the effect of enhanced functions

Inactive Publication Date: 2011-05-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0035] However, in the ICS system, the user's call is processed in the home IMS network, which cannot meet the requirements of emergency call processing in the visited network, that is, the IMS emergency call service cannot be provided for ICS users in the prior art

Method used

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  • Urgent call implementing method and system for IP multimedia subsystem centralized control business
  • Urgent call implementing method and system for IP multimedia subsystem centralized control business
  • Urgent call implementing method and system for IP multimedia subsystem centralized control business

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Embodiment Construction

[0073] The present invention will be described in detail below with reference to the drawings and embodiments.

[0074] Fig. 3 is a schematic structural diagram of an emergency call system of an IMS centralized service according to the present invention. As shown in Fig. 3, the emergency call system includes: UE, VMSC, E-ICCF (Emergency ICCF, emergency call ICCF), MGCF, MGW, E-CSCF and PSAP. Among them, E-ICCF, MGCF, MGW, E-CSCF and PSAP are located in the visited network.

[0075] As shown in Figure 4, the above-mentioned UE is an IMS centralized service user equipment, which includes a local circuit domain access adaptation function module; the E-ICCF is an IMS circuit domain control function for processing emergency calls initiated by the UE, It includes a remote circuit domain access adaptation function module and a remote user agent module.

[0076] Wherein, the local circuit domain access adaptation function module and the remote circuit domain access adaptation functi...

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Abstract

This invention relates to a method and a system for controlling service urgent call in concentration of IP multimedia subsystem, when a user device starts up an urgent call, the method includes the following steps: after VMSC receives a CS request message sent by said user device, if said message is an urgent call, then it transfers it to E-ICCF via MGCF, which sets up a load control route for itand sends an urgent call set-up request message to the E-CSCF to use the control route to transmit a rsponse message to the user device and finishes setting up the load route, which can provide IMS urgent call service to ICS users.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method and system for implementing an emergency call for centralized control services of an IP (Internet Protocol, Internet Protocol) multimedia subsystem. Background technique [0002] IP Multimedia Core Network Subsystem (IMS) is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3GPP), which builds an open and flexible service environment, support multimedia applications, and provide users with rich multimedia services. [0003] IMS is an IP-based telecommunications network architecture and has nothing to do with access technology. In addition to providing services for packet access networks such as GPRS (General Packet Radio Service) and WLAN (Wireless Local Area Network, wireless local area network), it also provides It can provide services for mobile cellular networks such as GSM (Global System for Mobile communications, Gl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/00H04L12/28H04W4/90
Inventor 游世林郝振武蔡继燕李振东
Owner ZTE CORP