Method for Notification of Centralized Service Registration Status in IP Multimedia Subsystem
A technology of multimedia subsystem and centralized service, applied in the field of notification of registration status of IP multimedia subsystem centralized service, can solve the problems of discontinuous service and failure to update user data in time, and achieve the effect of meeting service requirements
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Embodiment 1
[0063] image 3 The flow chart of IMS centralized service registration state notification during UE registration in the present invention describes the process of UE applying for IMS centralized service registration in the state of IMS centralized service unregistered state.
[0064] 301. The UE sends an ICS registration request to the RUA;
[0065] 302. After the RUA accepts the ICS registration request, it sends the ICS registration notification to the HSS;
[0066] The registration notification includes the UE's user ID, the remote user agent's network ID, and whether there is user data in the remote user agent. Since it is the first registration, the RUA declares that it has no user data.
[0067] 303. The HSS updates the ICS registration status of the user, and changes from unregistered to registered according to the ICS registration status, and executes corresponding service control logic, such as updating CS domain user data and other operations;
[0068] 304. The HS...
Embodiment 2
[0075] Figure 4 It is a flow chart of notification of IMS centralized service registration state during timeout deregistration of the present invention, which describes that when the UE is already in the ICS registration state, because the re-registration process is not initiated within the registration timeout time, the registration timer expires and the deregistration process is triggered. The steps are:
[0076] 401, the RUA registration timer expires, triggering the logout process (this process is equivalent to receiving the ICS logout notification);
[0077] 402. The RUA executes the logout service control logic to delete the user ICS registration data;
[0078] 403. The RUA sends an ICS logout notification to the HSS;
[0079] The ICS logout notification includes UE user ID, remote user agent network ID, logout reason, etc. The logout reason here is timeout logout.
[0080] 404. The HSS updates the user ICS registration status, changes the ICS registration status fro...
Embodiment 3
[0084] Figure 5 It is a flowchart of IMS centralized service registration state notification when HSS is deregistered in the present invention, and describes the process of initiating ICS deregistration request by HSS when UE is already in ICS registration state.
[0085] 501. According to the service control logic of the HSS, the HSS sends an ICS logout request to the RUA, and the reason for the logout is HSS logout;
[0086] 502. The RUA executes the logout service control logic, and deletes the user ICS registration data;
[0087] 503. The RUA sends an ICS deregistration notification to the UE;
[0088] 504, the UE returns an ICS deregistration notification response to the RUA;
[0089] 505, RUA sends ICS logout request response to HSS
[0090] 506. The HSS updates the ICS registration status of the user, and changes from registered to unregistered status according to the ICS registration status, and executes corresponding service control logic, such as updating CS doma...
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