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p-cscf fault handling method and system

A technology of P-CSCF and fault handling method, applied in the field of communications, can solve the problems of delaying user call connection time, inability to perceive P-CSCF faults, etc., and achieve the effect of ensuring smooth establishment

Active Publication Date: 2018-05-25
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] It can be seen that if the P-CSCF suffers a serious failure and cannot recover in a short time, the UE as the initiator of the service, that is, the calling UE can adopt the P-CSCF transfer strategy, but other UEs that have not initiated any services still cannot perceive the P-CSCF. Fault, these UEs can only begin to transfer from the faulty P-CSCF when the call signaling arrives, and re-register to the new P-CSCF, thus delaying the connection time of the user call

Method used

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Embodiment Construction

[0025] figure 2 It is a schematic flowchart of Embodiment 1 of the P-CSCF fault handling method of the present invention. Such as figure 2 As shown, the method of the present embodiment includes:

[0026] Step 101, the Serving CSCF S-CSCF acquires the address of the faulty Proxy CSCF P-CSCF.

[0027] Specifically, the S-CSCF can obtain the address of the faulty P-CSCF in various ways, and in this implementation, the method for the S-CSCF to obtain the address of the faulty P-CSCF is not limited.

[0028] Step 102, the S-CSCF searches for the user equipment UE corresponding to the failed P-CSCF according to the address of the failed P-CSCF.

[0029] Specifically, the S-CSCF is the core part of the IMS call session control function network element, which is mainly responsible for UE registration, authentication, service triggering and session control functions. It stores the P-CSCF address and domain name corresponding to the UE, UE IP address and other information. After...

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Abstract

The invention relates to a P-CSCF fault processing method and system. The method includes the steps that a service-call session control function (S-CSCF) obtains a proxy-call session control function (P-CSCF) address; the S-CSCF searches for user devices (UE) corresponding to a fault P-CSCF according to the address of the fault P-CSCF address; the S-CSCF sends a reregistering indication message to a stand-by P-CSCF so that the stand-by P-CSCF can forward the reregistering indication message to the UEs, and the reregistering indication message comprises the address of the stand-by P-CSCF address corresponding to the UEs so that the UEs can conduct reregistering on the stand-by P-CSCF. According to the P-CSCF fault processing method and system, after the P-CSCF fails, all the UEs using the fault P-CSCF can be informed to be reregistered to a new P-CSCF in advance, so that smooth building of the voice long-term evolution (VoLTE) service is guaranteed.

Description

technical field [0001] The present invention relates to communication technology, and in particular to a proxy-call session control function (Proxy-CallSession Control Function, abbreviated: P-CSCF) fault handling method and system. Background technique [0002] Voice Over Long Term Evolution (VoLTE for short) is an end-to-end voice solution based on the Internet Protocol (IP for short) on the 4G network, and is the ultimate solution for voice in the LTE era. For operators, the deployment of VoLTE not only improves wireless spectrum utilization and reduces network costs, but also introduces services such as high-definition video calls and high-frequency voice, which significantly improves communication quality. [0003] The realization of VoLTE must rely on the deployment of the IP Multimedia Subsystem (IP Multimedia Subsystem, referred to as: IMS) network. IMS network element entities include: User Equipment (User Equipment, referred to as: UE) supporting the VoLTE function...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04
CPCH04W24/04H04W60/00
Inventor 师瑜严斌峰周晶
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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