Third-party registration processing method based on IP multimedia subsystem network

Abstract

The present invention discloses a third party registration processing method based on the IMS network, which comprises that a UE completes the registration on a S-CSCF entity; the S-CSCF entity starts a waiting timer; the UE and a P-CSCF entity initiate and complete a registration status subscribing respectively to the S-CSCF entity; the S-CSCF entity initiate a third party registration to an AS when the waiting time of the waiting timer is enough. Through the present invention, the S-CSCF entity performs a waiting after the UE is successfully registered, to make the subscribing success of the registration status of the P-CSCF and the UE take precedence over the third party registration and avoid the situation of conflicting data of the UE, the P-CSCF, the S-CSCF and an HSS, to make the UE, the P-CSCF and the S-CSCF effectively process the abnormal circumstance occurred when the third party registration fails.

Description

technical field [0001] The present invention relates to a communication network, and in particular, to a third-party registration processing method based on an IP multimedia subsystem network. Background technique [0002] The IP Multimedia Core Network Subsystem (IMS) is based on the SIP protocol (an application layer protocol that creates, modifies, and terminates sessions between two or more parties). The main functional entities in the IMS include the Serving Call Session Control Function (CSCF for short) that controls functions such as user registration and session control, the Home Subscriber Server (HSS for short) that centrally manages user subscription data, and various An application server (Application Server, AS for short) with a business logic control function. [0003] Figure 1 is a flowchart of IMS user registration and user registration state subscription. It mainly involves the following network elements and equipment: UE (User Equipment) is user equipment...

AI Technical Summary

Problems solved by technology

[0015] S212, the third-party registration failure causes the S-CSCF to initiate a network logout, and the S-CSCF deletes the user data. Since the UE and the P-CSCF have not successfully subscribed to the registration status at this time, the UE and the P-CSCF cannot know the user on the S-CSCF has been deregistered;

[0016] The occurrence of the above failure will make the session request and non-session request initiated by the UE fail to succeed until the UE re-registers.

Since the UE status is still registered, this period of time will be very long (half of the successful registration response time)

This defect will not only cause data inconsistency on UE, P-CSCF, S-CSCF, and HSS, but also lead to serious consequences that users cannot use the IMS communication network

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