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Method and system for implementing IMS centralized service final call

An implementation method and call termination technology, applied in the field of communications, can solve the problems affecting the calling user experience, long call setup time, etc., and achieve the effects of shortening setup time, shortening call setup time, and improving experience

Inactive Publication Date: 2012-07-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0066] The technical problem to be solved by the present invention is to provide an IMS centralized control service termination method and its system, which are used to solve the problem in the prior art that the call establishment time in the call termination process is long and affects the calling user experience

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  • Method and system for implementing IMS centralized service final call
  • Method and system for implementing IMS centralized service final call
  • Method and system for implementing IMS centralized service final call

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Embodiment Construction

[0108] The technical solutions of the present invention will be further described in more detail in conjunction with the accompanying drawings and specific embodiments.

[0109] Such as Figure 4 As shown in the figure, it is a flow chart of the ICS termination service in which the session control path is in the PS domain in the embodiment of the present invention.

[0110] exist Figure 4 Among them, when the session control path is in the PS domain, method 1 in the implementation mode can use ICCF PSI (Public Service Identities, public service identification) number identification, when the call establishment request on the bearer control path precedes the session control path When the session establishment request on the Internet reaches the terminal user, the terminal user checks whether the calling number in the call information is the ICCF PSI number. If it is the ICCF PSI number, it indicates that the ICS call is initiated by ICCF as a B2BUA, so the terminal user needs...

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Abstract

The present invention discloses a method for implementing IMS centralized control service callee and the system thereof, wherein, the method comprises the following: step 1, when remote call user equipment calls the called ICS user equipment, ICCF receives a session request message from the remote call user equipment, and sends a session establishment request to the called ICS user equipment through a session control path, and sends a session establishment request to the called ICS user equipment through a loaded control path; step 2, the called ICS user equipment associates the session establishment request with the session establishment request in accordance with the arrival sequence of the session establishment request and the session establishment request, and carries out further session processing in accordance with the association. The present invention implements parallelly the session establishment process of the session control path and the call establishment process of the load control path, which shortens establishment time of called session and improves experience for calling users greatly.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for realizing IMS centralized control service termination. Background technique [0002] The IP (Internet Protocol, Internet Protocol) multimedia subsystem (IP Multimedia CoreNetwork Subsystem, IMS) is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP), which builds an open and Flexible business environment supports multimedia applications and provides 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/02
Inventor 谢宝国郝振武
Owner ZTE CORP