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System and method for implementing origination anchoring in voice call continuous service

A voice calling and continuity technology, applied in transmission systems, network data management, electrical components, etc., can solve problems such as the inability to perform call anchoring and the lack of deployment of intelligent services, and achieve the effect of consistent methods and small changes.

Inactive Publication Date: 2008-03-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The current problem is that in many traditional networks, intelligent services are not deployed
At this time, in the VCC service, the origination and anchoring of the CS domain cannot be achieved.

Method used

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  • System and method for implementing origination anchoring in voice call continuous service
  • System and method for implementing origination anchoring in voice call continuous service
  • System and method for implementing origination anchoring in voice call continuous service

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Embodiment Construction

[0058] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] When a user UE in a traditional domain initiates a call, it anchors to the voice call continuity VCC application server. When the calling user UE registers in the CS domain, the MSC / VLR obtains the relevant parameters of the user terminal from the HLR, including the calling trigger list and so on.

[0060] Fig. 3 has shown a signaling flow example of the present invention, what home location register sends to VCC this moment is ORREQ message, specifically comprises the following steps:

[0061] Step S310, the call message of the UE in the CS domain arrives at the MSC / VLR;

[0062] Step S320, the MSC / VLR sends an initial request ORREQ to the HLR according to the subscription information of the user, wherein the calling number CgPN is the UE number of the originating user, and the called number CdPN is the UE number of the termi...

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Abstract

The invention provides a system and method for call anchoring in Voice Call Continuity, wherein, comprising UE, MSC / VLR, HLR, MGCF and a VCC application server. The UE initiates a call to MSC / VLR in CS domain, MSC / VLR sends an original request ORREQ message to HLR, HLR judges that the UE whether or not has VCC service, if yes, sends messages to the VCC application server; when messages sent by HLR are received, the VCC application server saves information such as called numbers and returns numbers of the VCC application server to HLR, HLR returns numbers of the VCC application server to MSC / VLR through orreq reply messages; MSC / VLR initiates an initial address message IAM information including numbers of the VCC application server to MGCF, when the initial address message information is received, MGCF initiates an INVITE message to the numbers of the VCC application server; when the INVITE message is received, the VCC application server extracts called numbers and does next call. The call anchoring of CS domain is realized when CS domain does not deploy intelligent network.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to the anchoring of calling when a VCC (Voice Call Continuity) user initiates a call in a traditional domain without intelligent network services during the coexistence of an IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) network and a traditional domain method. Background technique [0002] The core network of the mobile communication network is evolving to the IMS of the all IP (ALL IP) network. However, this kind of evolution cannot be completed overnight, and its replacement of the existing circuit domain network will be completed gradually, which is a long-term process. In this process, there must be a situation where IMS and traditional domains coexist. [0003] In terms of network coverage, there may be independent coverage of traditional networks in some areas, independent coverage of IMS networks in some areas, and coexistence of dual networks...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04Q7/22H04W36/14H04W80/04
CPCH04W36/385H04L29/06217H04W80/04H04L65/1016H04W36/0022H04L65/1095H04W36/00226H04W8/02H04W88/14
Inventor 李振东曹小飞赵维铎唐小岚
Owner ZTE CORP
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