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A processing method on functional failure on calling conversation control agent

A technology of session control function and proxy call, applied in the field of communication, can solve problems such as affecting the normal processing of calls and business processes, and achieve the effect of ensuring continuity

Inactive Publication Date: 2012-12-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above defects in the current IMS system, when the P-CSCF fails or restarts, it usually affects the normal processing of subsequent calls and business processes

Method used

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  • A processing method on functional failure on calling conversation control agent
  • A processing method on functional failure on calling conversation control agent
  • A processing method on functional failure on calling conversation control agent

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0090] After the user successfully registers with the IMS network, the IMS network allocates a P-CSCF for the user (UE). If the P-CSCF breaks down, does not respond or loses security association and user data, it will directly cause the call termination process of the executing user to fail to proceed normally. In view of this situation, the present invention provides a method, so that after the P-CSCF fails, the S-CSCF can trigger the UE to perform the initial registration process, so as to establish an effective signaling link, so that the terminal call processing process can Work properly.

[0091] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0092] Image 6 It is an embodiment of the present invention, which is used to describe that when the UE accesses the IMS network, the P-CSCF discovery process is enabled, the IMS network provides multiple candidate P-CSCFs for the UE, and the UE stor...

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Abstract

A proxy call session control function malfunction processing method applied in an IP multimedia subsystem (IMS) network, comprises that a main and a spare proxy call session control function (P-CSCF) are configured for a user equipment (UE) with an IP multimedia subsystem network; the main and the spare P-CSCF information are stored by the UE and a serving call session control function (S-CSCF); when the S-CSCF transmits a service request to the UE using the main P-CSCF, if the main P-CSCF is in malfunction, the S-CSCF transmits the command indicating the UE to make an initial register to the UE using the main or the spare P-CSCF; the UE transmits an initial register request to the P-CSCF; the S-CSCF transmits the service request to the UE with the P-CSCF.

Description

technical field [0001] The invention relates to the field of communications, in particular to a method for processing failures of proxy call session control functions in an IP (Internet Protocol, Internet Protocol) multimedia subsystem. Background technique [0002] The IP Multimedia Core Network Subsystem (IMS for short) is the core of the new generation communication network. figure 1 Describes the network element entities and their connections in the IMS architecture related to the present invention. Wherein: User Equipment (UE for short) 101 represents a terminal device used by a user, and a call session control function (Call Session Control Function, CSCF for short) is a core network element controlling a session process, including: a proxy call session control function (Proxy -CSCF, referred to as P-CSCF) 102, Inquiring Call Session Control Function (Interrogating-CSCF, referred to as I-CSCF) 103, Serving Call Session Control Function (Serving-CSCF, referred to as S-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L1/22H04L12/56H04L29/06
CPCH04L65/105H04L65/1016H04L29/06285H04L29/06333H04L65/1073H04L29/06217H04L65/1045
Inventor 李志军郝振武丁兆明
Owner ZTE CORP
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