CN105636007A - Terminating-access domain determining method and server - Google Patents
Terminating-access domain determining method and server Download PDFInfo
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- CN105636007A CN105636007A CN201410616329.0A CN201410616329A CN105636007A CN 105636007 A CN105636007 A CN 105636007A CN 201410616329 A CN201410616329 A CN 201410616329A CN 105636007 A CN105636007 A CN 105636007A
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Abstract
The invention discloses a terminating-access domain determining method and server. The method comprises that a triggered application server (AS) requests the acquisition of terminating-access domain selection (T-ADS) information of a user and an IP multimedia subsystem (IMS) register state from a home subscriber server (HSS), and transmits an IP multimedia public identity (IMPU) to the HSS; the AS receives a request result returned by the HSS, the request result includes a query result, the T-ADS information and the IMS register state, and the T-ADS information and the IMS register state are information acquired through a query by the HSS according to the IMPU; and the AS determines an access domain according to the request result.
Description
Technical field
The present invention relates to communication technology, particularly relate to a kind of called input field defining method and server.
Background technology
At present, application server (ApplicationServer when called subscriber's ownership, when AS) receiving call request (SIP INVITE message), owing to called subscriber is likely to be at different network coverage status, described network coverage status can be divided into support IMS voice, do not support IMS voice, IMS is registered, IMS is unregistered, it is thus desirable to perform called access domain selection (Terminating-AccessDomainSelection, T-ADS) flow process, so that it is determined that call from IP Multimedia System (IPMultimediaSubsystem, IMS) territory is accessed or is accessed from circuit switching (CS) territory.
But, for situations below:
1, during inquiry, user indicates employing MSISDN, and VoLTE (VoiceoverLTE) service-user of having contracted adopts non-VoLTE terminal (such as CSFB mobile phone, 2/3G mobile phone etc.) to be under the support VoLTE network coverage;
2, during inquiry, user indicates employing MSISDN, and VoLTE service-user of not contracting adopts VoLTE terminal to be under the support VoLTE network coverage;
3, during inquiry, user indicates employing MSISDN, and VoLTE service-user of not contracting adopts non-VoLTE terminal to be under the support VoLTE network coverage;
4, during inquiry, user indicates employing IMPU, and VoLTE service-user of having contracted adopts non-VoLTE terminal to be under the support VoLTE network coverage.
Adopt and there will be mistake during existing T-ADS process selecting input field.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides a kind of called input field defining method and server.
The called input field defining method of one that the embodiment of the present invention provides, described method includes:
The application server AS being triggered is to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state, and sends the IP multimedia public identity IMPU of described user to described HSS;
Described AS receives the described HSS request results returned, and it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state;
Described AS determines input field according to described request results.
Wherein, described T-ADS information can represent whether the network that described user is presently in supports that IMS voice, described Query Result are used for representing that whether inquiry is successful, and described AS determines input field according to described request results, including:
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, and when IMS registration state is registered, described AS determines that input field is IMS domain;
When Query Result represents successful inquiring, but T-ADS information represents when the network that described user is presently in does not support IMS voice, and described AS determines that input field is CS territory;
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, but when IMS registration state is unregistered, described AS determines that input field is CS territory;
When Query Result represents that inquiry is unsuccessful, described AS determines that input field is CS territory.
Wherein, described in the AS that is triggered to the T-ADS information of HSS acquisition request user and IMS registration state, and send the IMPU of described user to described HSS, including:
Described AS passes through the user data requests UDR message T-ADS information to user described in described HSS acquisition request and IMS registration state, and described UDR message includes the IMPU of described user;
Accordingly, the request results that described HSS returns is that described HSS is sent to described AS by user data response UDA message.
Wherein, described UDR includes IMPU, T-ADSInformation field and IMSUserState field, wherein, described T-ADSInformation field is the T-ADS information of user described in acquisition request, and described IMSUserState field is the IMS registration state of user described in acquisition request.
Wherein, described method also includes:
Detect whether described AS is triggered.
A kind of server that the embodiment of the present invention provides, described server includes:
Request unit, for when described server is triggered to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state, and send the IP multimedia public identity IMPU of described user to described HSS;
Receiving unit, for receiving the described HSS request results returned, it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state;
Determine unit, for determining input field according to described request results.
Wherein, described T-ADS information can represent whether the network that described user is presently in supports that IMS voice, described Query Result are used for representing that whether inquiry is successful;
Accordingly, described determining unit, specifically for representing that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in when Query Result, and when IMS registration state is registered, described AS determines that input field is IMS domain;
When Query Result represents successful inquiring, but T-ADS information represents when the network that described user is presently in does not support IMS voice, and described AS determines that input field is CS territory;
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, but when IMS registration state is unregistered, described AS determines that input field is CS territory;
When Query Result represents that inquiry is unsuccessful, described AS determines that input field is CS territory.
Wherein, described request unit, specifically for by the user data requests UDR message T-ADS information to user described in described HSS acquisition request and IMS registration state, described UDR message includes the IMPU of described user;
Accordingly, the request results that described HSS returns is that described HSS is sent to described AS by user data response UDA message.
Wherein, described UDR includes IMPU, T-ADSInformation field and IMSUserState field, wherein, described T-ADSInformation field is the T-ADS information of user described in acquisition request, and described IMSUserState field is the IMS registration state of user described in acquisition request.
Wherein, described server also includes detection unit, is used for detecting whether described AS is triggered.
As from the foregoing, technical scheme includes: the application server AS being triggered is to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state, and sends the IP multimedia public identity IMPU of described user to described HSS; Described AS receives the described HSS request results returned, and it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state; Described AS determines input field according to described request results. Thus, the technical scheme of the embodiment of the present invention can determine input field according to described Query Result, described T-ADS information and IMS registration state, it is possible to avoids access domain selection mistake, thus ensureing that communication is normally carried out.
Accompanying drawing explanation
Fig. 1 is the flowchart of the first embodiment of a kind of called input field defining method provided by the invention;
Fig. 2 is the flowchart of the second embodiment of a kind of called input field defining method provided by the invention;
Fig. 3 is the flowchart of the 3rd embodiment of a kind of called input field defining method provided by the invention;
Fig. 4 is the flowchart determining input field in the embodiment of the present invention according to T-ADS information and IMS registration state;
Fig. 5 is the structural representation of the embodiment of a kind of server provided by the invention.
Detailed description of the invention
The called input field defining method of one that the embodiment of the present invention provides, shown in Figure 1, it is possible to comprise the following steps:
1, the AS of called subscriber's ownership receives call request (SIPINVITE).
2, the described AS of described call request is received by user data requests (USERDATAREQUEST, UDR) message, the home subscriber server (HomeSubscriberServer-HSS) belonged to described called subscriber asks T-ADS information;
Described UDR message includes the identification information of requested information type, called subscriber, such as IP multimedia public identity (IPMultimediaPublicIdentity, or mobile subscriber number (MobileSubscriberInternationalISDN/PSTNnumber IMPU), MSISDN), described ISDN refers to ISDN, it it is the abbreviation of IntegratedServiceDigitalNetwork, described PSTN refers to PSTN, is the abbreviation of PublicSwitchedTelephoneNetwork.
3, described HSS obtains T-ADS information according to the stored information of identification information-enquiry of called subscriber.
4, by user data response (USERDATAANSWER, UDA) message, returning request results to described AS, described request results includes T-ADS information.
Optionally, can also include: described HSS according to described called subscriber at present at the login state of each network, from GPRS service node (ServingGPRSSupportNode, and/or mobile management entity (MobilityManagementEntity SGSN), MME) obtaining the information of described called subscriber, described GPRS is the abbreviation of general packet radio service (GeneralPacketRadioService);
Accordingly, described HSS according to from local search to information and the information got from SGSN and/or MME obtain T-ADS information.
5, when comprising IMS-VOICE-OVER-PS-NOT-SUPPORTED in described T-ADS information, representing that the network that user is presently in does not support IMS voice, AS determines that employing CS territory carries out audio access;
When comprising IMS-VOICE-OVER-PS-SUPPORTED in described T-ADS information, representing the network support IMS voice that user is presently in, AS determines that employing IMS domain carries out audio access;
When described T-ADS information comprises IMS-VOICE-OVER-PS-SUPPORT-UNKNOWN, expression cannot learn whether the network that called subscriber is presently in supports IMS voice, AS determines that employing default policy carries out audio access, for instance, default policy carries out audio access for adopting CS territory.
But, for situations below:
User indicates employing MSISDN when queried, and when VoLTE (VoiceoverLTE) service-user of having contracted adopts non-VoLTE terminal (such as CSFB mobile phone, 2/3G mobile phone etc.) to be under the support VoLTE network coverage;
During inquiry, user indicates employing MSISDN, and when VoLTE service-user of not contracting adopts VoLTE terminal to be under the support VoLTE network coverage;
During inquiry, user indicates employing MSISDN, and when VoLTE service-user of not contracting adopts non-VoLTE terminal to be under the support VoLTE network coverage; And
During inquiry, user indicates employing IMPU, and when VoLTE service-user of having contracted adopts non-VoLTE terminal to be under the support VoLTE network coverage, adopts the called input field defining method that the present embodiment provides to there will be mistake when determining input field, and ginseng is shown in Table 1.
Table 1
In Table 1, for the T-ADS information returned, IMS voice (IMS-VOICE-OVER-PS-NOT-SUPPORTED) is not supported in 0 expression; 1 represents support IMS voice (IMS-VOICE-OVER-PS-SUPPORTED); 2 expressions can be adopted cannot to know whether to support IMS voice (IMS-VOICE-OVER-PS-SUPPORT-UNKNOWN). For the Query Result returned, SUCCESS represents successful inquiring, it is possible to inquiry is unsuccessful to adopt USERUNKNOWN to represent.
Needing exist for illustrating, in practical application, user type is divided into contract VoLTE service-user and VoLTE service-user of not contracting, and VoLTE service-user of wherein having contracted has IMS subscription data and IMPU code number in a network; Terminal type is divided into VoLTE terminal and non-VoLTE terminal, and wherein VoLTE terminal can initiate IMS registration; Network coverage status is divided into support IMS voice (4G) and does not support IMS voice (2/3G), and IMS is registered and unregistered.
Second embodiment of a kind of called input field defining method provided by the invention, as in figure 2 it is shown, described method includes:
Step 201, the application server AS being triggered are to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state, and send the IP multimedia public identity IMPU of described user to described HSS;
Concrete, described in the AS that is triggered to the T-ADS information of HSS acquisition request user and IMS registration state, including:
Described AS passes through the user data requests UDR message T-ADS information to user described in described HSS acquisition request and IMS registration state, and described UDR message includes the IMPU of described user;
Accordingly, the request results that described HSS returns is that described HSS is sent to described AS by user data response UDA message.
Need exist for illustrate be, in actual applications, described UDR can include IMPU, T-ADSInformation field and IMSUserState field, wherein, described T-ADSInformation field is the T-ADS information of user described in acquisition request, and described IMSUserState field is the IMS registration state of user described in acquisition request.
Step 202, described AS receive the described HSS request results returned, and it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state;
Needing exist for illustrating, the mode that HSS described in this enforcement obtains T-ADS information and IMS registration state according to described IMPU inquiry can adopt prior art, repeats no more herein.
Step 203, described AS determine input field according to described request results.
Concrete, described T-ADS information can represent whether the network that described user is presently in supports that Query Result described in IMS voice is for representing that whether inquiry is successful; Accordingly, described AS determines input field according to described request results, including:
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, and when IMS registration state is registered, described AS determines that input field is IMS domain;
When Query Result represents successful inquiring, but T-ADS information represents when the network that described user is presently in does not support IMS voice, and described AS determines that input field is CS territory;
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, but when IMS registration state is unregistered, described AS determines that input field is CS territory;
When Query Result represents that inquiry is unsuccessful, described AS determines that input field is CS territory.
Ginseng is shown in Table 2, and the present embodiment can determine input field according to described Query Result, described T-ADS information and IMS registration state, it is possible to avoids access domain selection mistake, thus ensureing that communication is normally carried out.
Table 2
In table 2, for IMS registration state, it is possible to adopt 1 expression registered, 0 represents unregistered; For the T-ADS information returned, it is possible to adopt 0 expression not support IMS voice, 1 represents support IMS voice, and N/A represents inapplicable; For the Query Result returned, SUCCESS represents successful inquiring, it is possible to inquiry is unsuccessful to adopt USERUNKNOWN to represent.
3rd embodiment of a kind of called input field defining method provided by the invention, as it is shown on figure 3, described method includes:
Whether step 301, detection application server AS are triggered;
Here, described in be triggered can be that AS receives call request (SIPINVITE), or meet the trigger condition preset in described AS.
Step 302, when activated, described AS is to the T-ADS information of HSS acquisition request user and IMS registration state, and sends the IP multimedia public identity IMPU of described user to described HSS;
Concrete, described in the AS that is triggered to the T-ADS information of HSS acquisition request user and IMS registration state, including:
Described AS passes through the user data requests UDR message T-ADS information to user described in described HSS acquisition request and IMS registration state, and described UDR message includes the IMPU of described user;
Accordingly, the request results that described HSS returns is that described HSS is sent to described AS by user data response UDA message.
Need exist for illustrate be, in actual applications, described UDR can include the IP multimedia public identity IMPU of T-ADSInformation field, IMSUserState field and described user, wherein, described T-ADSInformation field is the T-ADS information of user described in acquisition request, and described IMSUserState field is the IMS registration state of user described in acquisition request.
Step 303, described AS receive the described HSS request results returned, and it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state;
Step 304, described AS determine input field according to described request results.
Concrete, described T-ADS information can represent whether the network that described user is presently in supports that IMS voice, described Query Result are used for representing that whether inquiry is successful;
Accordingly, described AS determines input field according to described T-ADS information and IMS registration state, including:
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, and when IMS registration state is registered, described AS determines that input field is IMS domain;
When Query Result represents successful inquiring, but T-ADS information represents when the network that described user is presently in does not support IMS voice, and described AS determines that input field is CS territory;
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, but when IMS registration state is unregistered, described AS determines that input field is CS territory;
When Query Result represents that inquiry is unsuccessful, described AS determines that input field is CS territory.
In actual applications, shown in Figure 4, according to described request results, described AS determines that input field may comprise steps of:
Step 401, after receiving UDA message, judge inquiry whether success according to the Query Result returned, when successful inquiring, entrance step 402; When inquiring about unsuccessful, enter step 405;
Step 402, according to return T-ADS information judge whether the network that described user is presently in supports IMS voice, when support IMS voice time, entrance step 403; When not supporting IMS voice, enter step 405;
Step 403, according to return IMS registration condition adjudgement described in the whether registered IMS of user, when registered, enter step 404; When unregistered, enter step 405;
Step 404, determine that input field is IMS domain, terminate this flow process;
Step 405, determine that input field is CS territory, terminate this flow process.
That is, being IMS-VOICE-OVER-PS-SUPPORTED when the Query Result in UDA is SUCCESS, T-ADS information, when IMS registration state is REGISTER, access domain selection is IMS domain; In other situations, access domain selection is CS territory.
The embodiment of a kind of server provided by the invention, as it is shown in figure 5, described server includes:
Request unit 501, is used for when described server is triggered to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state;
Receiving unit 502, for receiving the described HSS request results returned, it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state;
Determine unit 503, for determining input field according to described T-ADS information and IMS registration state.
In actual applications, described server can be AS server.
In one embodiment, described T-ADS information can represent whether the network that described user is presently in supports that IMS voice, described Query Result are used for representing that whether inquiry is successful;
Accordingly, described determining unit 503, specifically for representing that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in when Query Result, and when IMS registration state is registered, described AS determines that input field is IMS domain;
When Query Result represents successful inquiring, but T-ADS information represents when the network that described user is presently in does not support IMS voice, and described AS determines that input field is CS territory;
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, but when IMS registration state is unregistered, described AS determines that input field is CS territory;
When Query Result represents that inquiry is unsuccessful, described AS determines that input field is CS territory.
In one embodiment, described request unit 501, specifically for by the user data requests UDR message T-ADS information to user described in described HSS acquisition request and IMS registration state, described UDR message includes the IMPU of described user;
Accordingly, the request results that described HSS returns is that described HSS is sent to described AS by user data response UDA message.
In actual applications, described UDR can include IMPU, T-ADSInformation field and IMSUserState field, wherein, described T-ADSInformation field is the T-ADS information of user described in acquisition request, and described IMSUserState field is the IMS registration state of user described in acquisition request.
In one embodiment, described server also includes detection unit 504, is used for detecting whether described AS is triggered.
In sum, technical scheme includes: the application server AS being triggered is to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state; Described AS receives the described HSS request results returned, and it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state; Described AS determines input field according to described request results, and in the present invention, user indicates employing IMPU; Further, while inquiry T-ADS information, inquiry IMS registration state is also needed. Thus, the technical scheme of the embodiment of the present invention can determine input field according to described Query Result, described T-ADS information and IMS registration state, it is possible to avoids access domain selection mistake, thus ensureing that communication is normally carried out. Additionally, each interface message meets 3GPP standard in flow process of the present invention, do not affect the standard network normal functions such as HSS, SGSN, MME.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program. Therefore, the present invention can adopt the form of hardware embodiment, software implementation or the embodiment in conjunction with software and hardware aspect. And, the present invention can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory and optical memory etc.) wherein including computer usable program code.
The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program describe. It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame. These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
The above, be only presently preferred embodiments of the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. a called input field defining method, it is characterised in that described method includes:
The application server AS being triggered is to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state, and sends the IP multimedia public identity IMPU of described user to described HSS;
Described AS receives the described HSS request results returned, and it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state;
Described AS determines input field according to described request results.
2. method according to claim 1, it is characterised in that described T-ADS information can represent whether the network that described user is presently in supports that IMS voice, described Query Result are used for representing that whether inquiry is successful;
Accordingly, described AS determines input field according to described request results, including:
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, and when IMS registration state is registered, described AS determines that input field is IMS domain;
When Query Result represents successful inquiring, but T-ADS information represents when the network that described user is presently in does not support IMS voice, and described AS determines that input field is CS territory;
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, but when IMS registration state is unregistered, described AS determines that input field is CS territory;
When Query Result represents that inquiry is unsuccessful, described AS determines that input field is CS territory.
3. method according to claim 1, it is characterised in that described in the AS that is triggered to the T-ADS information of HSS acquisition request user and IMS registration state, and send the IMPU of described user to described HSS, including:
Described AS passes through the user data requests UDR message T-ADS information to user described in described HSS acquisition request and IMS registration state, and described UDR message includes the IMPU of described user;
Accordingly, the request results that described HSS returns is that described HSS is sent to described AS by user data response UDA message.
4. method according to claim 3, it is characterized in that, described UDR includes IMPU, T-ADSInformation field and IMSUserState field, wherein, described T-ADSInformation field is the T-ADS information of user described in acquisition request, and described IMSUserState field is the IMS registration state of user described in acquisition request.
5. method according to claim 1, it is characterised in that described method also includes:
Detect whether described AS is triggered.
6. a server, it is characterised in that described server includes:
Request unit, for when described server is triggered to the called access domain selection T-ADS information of home subscriber server HSS acquisition request user and IP Multimedia System IMS registration state, and send the IP multimedia public identity IMPU of described user to described HSS;
Receiving unit, for receiving the described HSS request results returned, it is the described HSS information obtained according to described IMPU inquiry that described request results includes Query Result, T-ADS information and IMS registration state, described T-ADS information and described IMS registration state;
Determine unit, for determining input field according to described T-ADS information and IMS registration state.
7. server according to claim 6, it is characterised in that described T-ADS information can represent whether the network that described user is presently in supports that IMS voice, described Query Result are used for representing that whether inquiry is successful;
Accordingly, described determining unit, specifically for representing that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in when Query Result, and when IMS registration state is registered, described AS determines that input field is IMS domain;
When Query Result represents successful inquiring, but T-ADS information represents when the network that described user is presently in does not support IMS voice, and described AS determines that input field is CS territory;
When Query Result represents that successful inquiring, T-ADS information represent the network support IMS voice that described user is presently in, but when IMS registration state is unregistered, described AS determines that input field is CS territory;
When Query Result represents that inquiry is unsuccessful, described AS determines that input field is CS territory.
8. server according to claim 6, it is characterized in that, described request unit, specifically for by the user data requests UDR message T-ADS information to user described in described HSS acquisition request and IMS registration state, described UDR message includes the IMPU of described user;
Accordingly, the request results that described HSS returns is that described HSS is sent to described AS by user data response UDA message.
9. server according to claim 8, it is characterized in that, described UDR includes IMPU, T-ADSInformation field and IMSUserState field, wherein, described T-ADSInformation field is the T-ADS information of user described in acquisition request, and described IMSUserState field is the IMS registration state of user described in acquisition request.
10. server according to claim 6, it is characterised in that described server also includes detection unit, is used for detecting whether described AS is triggered.
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