CN109951862A - A kind of method of IMS network AS self- recoverage registration information - Google Patents
A kind of method of IMS network AS self- recoverage registration information Download PDFInfo
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- CN109951862A CN109951862A CN201910201159.2A CN201910201159A CN109951862A CN 109951862 A CN109951862 A CN 109951862A CN 201910201159 A CN201910201159 A CN 201910201159A CN 109951862 A CN109951862 A CN 109951862A
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Abstract
The invention discloses a kind of methods of IMS network AS self- recoverage registration information, are related to IP multimedia subsystem (IMS, IP Multimedia Subsystem).This method is in application server (AS, Application Server) lose the registration information of all users after, from call request triggers AS to local server (HSS, Home Subscriber Server) inquiry, again restore registration information, business service can be provided immediately for user, shorten service recovery time as early as possible, it is significant to lower the IMS system mean down time, improve the stability for the business that IMS network provides.
Description
Technical field
The present invention relates to IP multimedia subsystem (IMS, IP Multimedia Subsystem) more particularly to one kind to answer
With the method for server (AS, Application Server) self- recoverage registration information.
Background technique
IMS system can provide diversified multimedia service as a kind of completely new multimedia service form for user.
In IMS system, application server is the application layer equipment positioned at top layer.It is assisted between AS network element and CSCF by standard SIP
View interacts, and then realizes the triggering and execution of various network services.
After user completes registration to IMS core net, the IMS business if user has contracted, Serving-Call interactive function (S-
CSCF, Serving-Call Session Control Function) it must check downloaded initial filter standard or norm iFC, and touch
Hair goes the routing of the AS for user service, and notice AS user has registered and reached.Third is initiated from S-CSCF to AS
The various multimedia services of AS offer just can be used after third-party registration success in side's registration.
To improve system stability and reliability, AS supports active and standby frame redundancy under normal circumstances, can between two frame systems
Disaster recovery backup is carried out, after body frame system stops, standby frame system can take over business, and the business after adapter tube can normally make
With.
In certain extreme cases, when the body frame system of AS and standby frame system occur being simultaneously stopped work, work as system reboot
Later, since IMS core net can not actively initiate third-party registration, AS will be lost the registration information of all users at this time.
Only when expiring in the third-party registration period, IMS core net can just send out the refresh registration of third-party registration to AS, re-register into
After function, AS could provide corresponding business service.And AS will cannot provide the service of any signing service during this period.
Summary of the invention
To solve the above problems, the present invention provides a kind of method of IMS network AS self- recoverage registration information, to realize
Under extreme case, after AS main preparation system is simultaneously stopped work, self-recovery registration information is interim to provide basic service service.It can
Shorten service recovery time as early as possible, improves the stability for the business that IMS network provides.
The purpose of the present invention is achieved through the following technical solutions:
A kind of method of IMS network AS self- recoverage registration information, comprising the following steps:
After step 1:AS receives the call request for the user that S-CSCF is sent, AS passes through IP multimedia public identity
(IMPU, IP MultimediaPublic Identity) checks whether user has registered, if registered, executes step
Rapid 2, if unregistered, then follow the steps 3；
There are user informations on step 2:AS, are normally carried out business processing；
User information is not present on step 3:AS, then judges in call request message in P-Served-User header field
Whether regstate parameter is reg, if so, user is registered, execution step 5, otherwise, user in registers kernel network state
It is unregistered, execution step 4 in registers kernel network state；
Step 4:AS refusal provides business service for user, and replys 480 responses to S-CSCF, terminates this process；
Step 5:AS sends user data requests (UDR, User Data Request) to HSS by Sh interface, to obtain
The data of active user；
Step 6:AS receives the user data that HSS is sent by Sh interface and responds (UDA, User Data Answer), and
The login state of user is obtained from response message；
Step 7:AS judge user in the login state of HSS, if user registration state be it is unregistered, then follow the steps 8；If
User Status be it is registered, then follow the steps 9；
Step 8:AS refusal provides business service for user, and replys 480 responses to S-CSCF, terminates this process；
The login state of user is revised as registered, reconstruct registration information by step 9:AS；
Step 10:AS carries out business processing, continues as user and provides business service.
Wherein, in the step 1, AS checks terminal user's letter by the hashed table index of IMPU to end-user listening data
Whether the login state in breath is registered.
Wherein, in the step 6, AS obtains user data, including IMPU, login state and industry from user data response
Be engaged in data, established in Hash table IMPU to end-user listening data index.
Generated beneficial effect is using the above scheme, and in certain extreme cases, AS active/standby server is heavy simultaneously
New starting, after AS will lose user's registration information, user initiates call request at this time, and AS can reconstruct registration letter with this solution
Breath, provides business service for user.
It, can be after AS restores service, without waiting using the technical solution in the present invention compared with prior art
S-CSCF carries out the refresh registration of third-party registration, provides business service immediately for user, improves the usage experience of user, can use up
It is fast to shorten service recovery time, significant to lower the mean down time, the stability for the business that raising IMS network provides.
Detailed description of the invention
After Fig. 1 is user registration success, after AS loses registration information, terminal originated calls service request flow chart.
Fig. 2 is AS reconstruct register command flow chart of the present invention.
Fig. 3 is the method flow diagram of AS self- recoverage registration information of the present invention.
Specific embodiment
The method of the invention is described in further detail with reference to the accompanying drawings and examples.
When the body frame system of AS and standby frame system occur being simultaneously stopped work in the prior art, after system reboot, by
Third-party registration can not be actively initiated in IMS core net, AS will be lost the registration information of all users at this time.Only when
When tripartite's registration period expires, IMS core net can just send out the refresh registration of third-party registration to AS, after re-registering successfully,
AS could provide corresponding business service.And call request process during this period is as shown in Figure 1, AS cannot provide any label
The about service of business.
Step 101: user is to Proxy-Call interactive function (P-CSCF, Proxy-Call Session Control
Function registration request) is sent.
Step 102:P-CSCF is to inquiry-call session functions (I-CSCF, Proxy-Call Session Control
Function registration request) is forwarded.
After step 103:I-CSCF receives registration request, to local server (HSS, Home Subscriber
Server it) inquires, selects and specify S-CSCF, and send registration request to specified S-CSCF.
Step 104:S-CSCF downloads authentication information from HSS, authenticates to user.After authenticating successfully, to I-CSCF
Transmission, which is succeeded in registration, responds 200OK.
Step 105:I-CSCF is responded to P-CSCF forwarding 200OK.
Step 106:P-CSCF forwards 200OK response to user, notifies user registration success.
Step 107:S-CSCF downloads the service contracting data (Service Profile) of user from HSS, and according to iFC
Carry out third-party registration.
Step 108:AS completes the third-party registration of user, and returns to 200OK response to S-CSCF.
At this point, if AS loses third-party registration information because fortuitous event causes active and standby AS to be simultaneously stopped work.Then occur with
Lower situation:
Step 109: user initiates call request to P-CSCF.
Call request is forwarded to S-CSCF by step 110:P-CSCF.
Step 111:S-CSCF is matched according to IFC, if signing registration business, is requested to AS forwarded call.
Step 112:AS receives call request, and since AS is out of use the registration information at family, AS will be extensive to S-CSCF
Multiple 480 response.
A kind of method of IMS network AS self- recoverage registration information of the present invention, after AS restores service, without waiting for S-
CSCF carries out the refresh registration of third-party registration, can provide business service AS reconstruct registration immediately for user.The embodiment of the present invention
As follows, signaling process figure is as shown in Fig. 2, method flow diagram is as shown in Figure 3.
Example 1: assuming that AS is because abnormal conditions cause to lose all user informations, the upper User Status of HSS is unregistered.
After step 1:AS receives the call request (INVITE) that S-CSCF is sent, AS checks user in AS by IMPU
On login state be it is unregistered.
Step 2: user is unregistered, i.e. the user information is not present on AS.AS checks P-Served- in INVITE message
Regstate parameter in User header field, it is assumed that the parameter is reg.
Step 3: the user registers kernel network state be it is registered, AS by Sh interface to HSS transmission user data ask
(UDR, User DataRequest) is asked, to obtain the data of active user.
Step 4:AS receives the user data response (UDA, User Data Answer) of HSS transmission by Sh interface, from
The login state of the user is obtained in message.
Step 5:AS judges login state of the user on HSS, it is assumed that the login state is unregistered.
The login state that step 6:HSS is returned is unregistered, therefore refuses to provide business service for the user, and to S-
CSCF replys 480 responses, terminates this process.
Example 2: assuming that AS is because abnormal conditions cause to lose all user informations, the upper User Status of HSS is registered.
After step 1:AS receives the call request that S-CSCF is sent, AS, which is checked, checks whether user has infused by IMPU
Volume.If unregistered, step 2 is executed.If registered, step 3 is executed.
Step 2: user is unregistered, i.e. the user information is not present on AS.AS checks P-Served- in INVITE message
Regstate parameter in User header field, it is assumed that the parameter is reg.
Step 3: the user registers kernel network state be it is registered, AS by Sh interface to HSS transmission user data ask
(UDR, User DataRequest) is asked, to obtain the data of active user.
Step 4:AS receives the user data response (UDA, User Data Answer) of HSS transmission by Sh interface, from
The login state of the user is obtained in message.
Step 5:AS judges login state of the user on HSS, it is assumed that the login state is registered.
Step 6:HSS return login state be it is registered, then the login state of the user is revised as registered by AS, weight
Structure registration information.
Step 7:AS carries out business processing, continues as the user and provides business service.
In conclusion being not intended to limit the scope of the present invention the above is only preferred application example of the invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (3)
1. a kind of method of IMS network AS self- recoverage registration information, which comprises the following steps:
After step 1:AS receives the call request for the user that S-CSCF is sent, AS checks whether user has infused by IMPU
Volume, if registered, thens follow the steps 2, if unregistered, thens follow the steps 3；
There are user informations on step 2:AS, are normally carried out business processing；
User information is not present on step 3:AS, then judges in call request message regstate in P-Served-User header field
Whether parameter is reg, if so, user registers kernel network state be it is registered, execute step 5, otherwise, user is in core net
Login state is unregistered, execution step 4；
Step 4:AS refusal provides business service for user, and replys 480 responses to S-CSCF, terminates this process；
Step 5:AS sends user data requests to HSS by Sh interface, to obtain the data of active user；
Step 6:AS receives the user data that HSS is sent by Sh interface and responds, and the registration of user is obtained from response message
State；
Step 7:AS judge user in the login state of HSS, if user registration state be it is unregistered, then follow the steps 8；If user
State be it is registered, then follow the steps 9；
Step 8:AS refusal provides business service for user, and replys 480 responses to S-CSCF, terminates this process；
The login state of user is revised as registered, reconstruct registration information by step 9:AS；
Step 10:AS carries out business processing, continues as user and provides business service.
2. a kind of method of IMS network AS self- recoverage registration information according to claim 1, it is characterised in that: the step
In rapid 1, AS by IMPU arrive end-user listening data hashed table index, inspection information of terminal user in login state whether be
It is registered.
3. a kind of method of IMS network AS self- recoverage registration information according to claim 1, it is characterised in that: the step
In rapid 6, AS obtains user data, including IMPU, login state and business datum from user data response, builds in Hash table
Index of the vertical IMPU to end-user listening data.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110719585A (en) * | 2019-10-17 | 2020-01-21 | 广州爱浦路网络技术有限公司 | User information synchronization method of application server of S-CSCF |
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| EP2165504A1 (en) * | 2007-06-19 | 2010-03-24 | Telefonaktiebolaget LM Ericsson (PUBL) | Ims recovery after hss failure |
| CN101127722A (en) * | 2007-09-17 | 2008-02-20 | 中兴通讯股份有限公司 | Processing method after core network restart/failure recovery |
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| ERICSSON TELECOMMUNICATIE B.V: "The Session Initiation Protocol (SIP) PServed-User Private-Header (P-Header)for the 3GPP IP Multimedia (IM) CoreNetwork (CN) Subsystem", 《RFC 5502》 * |
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| CN110719585A (en) * | 2019-10-17 | 2020-01-21 | 广州爱浦路网络技术有限公司 | User information synchronization method of application server of S-CSCF |
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Application publication date: 20190628 |