Call control method and device thereof

A call control device and call control technology, applied in the field of communication, can solve the problems of high pressure on core network elements and many times of signaling routing, and achieve the effect of reducing the times of routing and reducing pressure

Active Publication Date: 2012-04-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the process of research and practice of the prior art, the inventor of the present invention found that the existing call control process is that the AGCF or P-CSCF routes the user's call to the S-CSCF, and the S-CSCF performs call control, so There is a relatively high pressure on core network elements and a large number of signaling routes

Method used

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  • Call control method and device thereof

Examples

Experimental program
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Embodiment 1

[0027] The first embodiment, a call control method, the flowchart is as figure 1 Shown, including:

[0028] A1, the call control device receives the session request sent by the calling party; the session request includes the identity of the called party;

[0029] A2: If the link between the call control device and the S-CSCF fails, check whether the called party is a user under the call control device according to the identity of the called party, and if so, directly The session request is sent to the called party for call connection.

[0030] In the embodiment of the present invention, the call control device checks whether the called party is a user belonging to the device, and can check whether the identity of the called party is implemented in a local user list. If the called party is not a subordinate user of the call control device, the call control device may return a connection failure response to the calling party.

[0031] In specific implementation, the call control device...

Embodiment 2

[0035] Embodiment two, a call control method, the flowchart is as figure 2 Shown, including:

[0036] B1, the P-CSCF receives the session request sent by the calling party; the session request includes the identity of the called party;

[0037] B2: If the link between the P-CSCF and the S-CSCF fails, the P-CSCF checks whether the called party is a user under the P-CSCF according to the identity of the called party, and if so, directly The session request is sent to the called party for call connection.

[0038] In this embodiment, the P-CSCF checks whether the called party is a user under the P-CSCF according to the identity of the called party. Various methods may be adopted, such as checking the identity of the called party. Identifies whether the user list is local. In the list, it indicates that the called party is a local user, but not in the list, indicating that the called party is not a user managed by the P-CSCF. It can be understood that during the process of user regis...

Embodiment 3

[0042] Embodiment three, a call control method, the flowchart is as image 3 Shown, including:

[0043] C1, the AGCF receives the session request sent by the calling party; the session request includes the identity of the called party;

[0044] C2: If the link between the AGCF and the S-CSCF fails, the AGCF checks whether the called party is a user under the AGCF according to the called party’s identity, and if so, sends the session request directly Make call connection to the called party.

[0045] In this embodiment, the AGCF can check whether the called party is a user under the AGCF according to the called party’s identity in various ways, such as checking whether the called party’s identity is local List of users. In the list, it means that the called party is a local user, but not in the list, indicating that the called party is not a user managed by AGCF. It can be understood that in the process of user registration or location update on the network, the AGCF can save the i...

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Abstract

The invention discloses call control method and device. In the embodiment of the invention, the call control device directly transfers a call signaling when a fault happens in a link between the call control device and an S-CSCF. In the other embodiment of the invention, the call control device directly transfers the call signaling when a calling part and a called part belong to the members in the same group of a cluster business. Through the embodiments of the invention, the routing times can be reduced and the pressure of a network element of a core network can be lightened.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a call control method and a call control device. Background technique [0002] The IP Multimedia Subsystem (IMS) is a subsystem in the core network added by the 3rd Generation Partnership Project (3GPP) in the release 5 (R5) stage. It uses the Session Initiation Protocol (Session Initiation Protocol). Based on the SIP, it is an open system that integrates data, voice, and Internet Protocol (IP) networks. It provides rich multimedia services and applications through an all-IP service network architecture. The IMS network defines three routing entities: Proxy Call Session Control Function (P-CSCF), Interrogating CSCF (I-CSCF), and Serving Call Session Control Function (Serving). CSCF, S-CSCF). [0003] S-CSCF is in the core control position in the IMS core network. It is responsible for UE registration and authentication and session control, performs basic session routing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04W76/02H04L29/06H04L69/40
CPCH04W76/045H04L29/14H04L12/14H04L65/1046H04L29/06217H04L29/06278H04W92/24H04L12/1453H04L43/0811H04W28/04H04L65/1016H04L69/40H04W76/25
Inventor 任慧鹏成葵交陈亮
Owner HUAWEI TECH CO LTD
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