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Registration method and system

An entity and state technology, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve the problems of processing speed and performance degradation, impact, and reduction of S-CSCF entity processing speed and performance.

Inactive Publication Date: 2008-04-02
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it takes a period of time from when the I-CSCF entity sends a registration request message to the S-CSCF entity until the registration is completed, so the registration delay of the UE is relatively long
[0013] 2. When the S-CSCF entity is overloaded and unable to process the registration of the UE, the S-CSCF entity sends a failure message to the I-CSCF entity after step 105 in Figure 1, indicating that the registration of the UE cannot be processed
[0014] It can be seen that in the above two cases, when the S-CSCF entity allocated by the HSS is in an overloaded state, the registration delay of the UE is relatively long
Moreover, in the above-mentioned first case, when the S-CSCF entity is in an overloaded state, the processing speed and performance are reduced, and if a new UE registration process is added at this time, the processing of the S-CSCF entity will be further reduced Speed ​​and performance, thereby affecting other UEs registered to this S-CSCF entity

Method used

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Examples

Experimental program
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Embodiment 1

[0069] In this embodiment, the S-CSCF load information stored in the HSS is the information of S-CSCF entities in a normal load state, and the above information is stored in a preset normal S-CSCF list. In addition, an overload threshold is set for the S-CSCF in advance, and when the load is greater than the overload threshold, the S-CSCF entity is in an overload state. In addition, the overload release threshold and the transition time threshold can also be preset, and the overload release threshold is less than the overload threshold, when the load of the S-CSCF entity decreases from a value exceeding the overload threshold to less than the overload release threshold and the duration reaches the preset transition When the time threshold expires, the S-CSCF entity returns to the normal load state. When the S-CSCF entity changes from the normal load state to the overload state or returns to the normal load state from the overload state, the S-CSCF load information in the HSS n...

Embodiment 2

[0095] In this embodiment, the S-CSCF load information stored in the HSS is the information of the S-CSCF entities in the overloaded state, and the above information is stored in the preset overloaded S-CSCF list. In this embodiment, an overload threshold and an overload release threshold smaller than the overload threshold are also set in advance for the S-CSCF. When the load is greater than the overload threshold, the S-CSCF entity is in the overload state; when the load of the S-CSCF entity decreases from a value exceeding the overload threshold to less than the overload release threshold and the duration reaches the switching time threshold, the S-CSCF entity returns to to normal load conditions. When the S-CSCF entity changes from the normal load state to the overload state or returns to the normal load state from the overload state, the S-CSCF load information in the HSS is updated.

[0096] Fig. 5 shows a flowchart of a method for updating S-CSCF load information in th...

Embodiment 3

[0109] In this embodiment, the S-CSCF load information stored in the HSS is load status information corresponding to all S-CSCFs, and the above information is stored in a preset S-CSCF load status list. Similar to Embodiments 1 and 2, in this embodiment, an overload threshold and an overload release threshold smaller than the overload threshold are also set in advance for the S-CSCF. When the load is greater than the overload threshold, the S-CSCF entity is in the overload state; when the load of the S-CSCF entity decreases from a value exceeding the overload threshold to less than the overload release threshold and the duration reaches the switching time threshold, the S-CSCF entity returns to to normal load conditions. When the S-CSCF entity changes from the normal load state to the overload state or returns to the normal load state from the overload state, the S-CSCF load information in the HSS is updated.

[0110] Fig. 6 shows a flowchart of a method for updating S-CSCF l...

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Abstract

The invention discloses a method for logging. In advance Serving Call Session Control Function (S-CSCF) loading information is set up in Home Subscriber Server (HSS). An Interrogating Call Session Control function (I-CSCF) entity receives the request sent from User Equipment (UE) which is in demand for logging in Internet Protocol IP Multimedia Subsystem (IMS), then Home Subscriber Server distributes Serving Call Session Control Function entity of User Equipment. The Home Subscriber Server chooses the entity which is in normal loading status and can deal with Serving Call Session Control Function entity logging by User Equipment, meanwhile send this information to Interrogating Call Session Control Function (I-CSCF) entity. The chosen Serving Call session control function entity deals with the login information in the request of Interrogating call session control function. This invention also disclosed a system using for user login, including Interrogating Call Session Control Function (I-CSCF) entity, Home Subscriber Server (HSS) entity and Serving Call session control function (S-CSCF) entity. This invention can reduce the time delay in login of User Equipment (UE) in condition of the heavy burden of the system.

Description

technical field [0001] The invention relates to the access technology in the communication system, in particular to a registration method and system in the Internet Protocol (IP) Multimedia Subsystem (IMS). Background technique [0002] In the third generation communication system, the core network (CN) can be logically divided into circuit domain (CS), packet domain (PS) and IMS domain. Among them, the IMS domain uses the PS domain as the bearer network, provides standardized multimedia services on top of the packet switching bearer, realizes session connection and data transmission of IP multimedia services, and implements multimedia services such as audio, video, and text together with the PS domain. It also provides a common network architecture for future IP multimedia applications to facilitate the realization of new services. [0003] The current IMS system mainly includes a Home Subscriber Server (HSS) and a Call Session Control Function (CSCF) entity. Among them, ...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L12/56H04L29/06H04L12/911
Inventor 谢晓棠
Owner SIEMENS AG
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