CN101102604B - Method for user shutdown and forward in centrally controlled service of IP multimedia subsystem - Google Patents
Method for user shutdown and forward in centrally controlled service of IP multimedia subsystem Download PDFInfo
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- CN101102604B CN101102604B CN2007101358983A CN200710135898A CN101102604B CN 101102604 B CN101102604 B CN 101102604B CN 2007101358983 A CN2007101358983 A CN 2007101358983A CN 200710135898 A CN200710135898 A CN 200710135898A CN 101102604 B CN101102604 B CN 101102604B
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Abstract
The method comprises: after IP multimedia subsystem circuit domain control function sends the called request message to the local circuit domain access adapting function, the local circuit domain access adapting function gets the information that is the called user has been shutdown; through the session control path, the local circuit domain access adaptive unit sends the user's shutdown message to the IP multimedia subsystem circuit domain control function; the IP multimedia subsystem circuit domain control function sends the response message for indicating the user's shutdown to the telecommunication application server; according to the responses message, the telecommunication application server controls triggering the shutdown forwarding service.
Description
Technical field
The present invention relates to the communications field, relate more specifically to the method for changeing before the user shuts down in a kind of IMS (IP Multimedia CoreNetwork Subsystem, IP Multimedia System) centralized control business.
Background technology
IP (procotol, Internet Protocol, be called for short IP) IP multimedia subsystem, IMS (IP MultimediaCore Network Subsystem, be called for short IMS) be by third generation partner program (3rd GenerationPartnership Project, abbreviation 3GPP) a kind of IP-based network framework that proposes, it has made up an opening and service environment flexibly, supports multimedia application, and provides abundant multimedia service for the user.
IMS is based on the communication network framework of IP, irrelevant with access technology, except being GPRS (General Packet Radio Service, GPRS), WLAN (Wireless LocalArea Network, WLAN (wireless local area network)) grouping exchange (Packet Switched such as, abbreviation PS) access network provides outside the business, can also be GSM (Global System for Mobile communications, global system for mobile communications), UMTS mobile cellular networks such as (Universal Mobile Telecommunications System, unified mobile communcations systems) provides professional.
Mobile cellular network such as GSM, UMTS adopts circuit-switched technology, is called circuit switching (CircuitSwitched is called for short CS) territory, can provide basic speech business for the user, and based on the supplementary service of speech business.When IMS was inserted in the CS territory, it developed into a kind of access way, and business provides by IMS is unified fully, and this technology is called IMS centralized traffic (IMS Centralized Service is called for short ICS).
The IMS centralized traffic has the following advantages:
(1) IMS provides consistent business for access waies such as circuit commutative field, packet-switched domains, and network enabled merges;
(2) support the CS network to the evolution of IMS network;
(3) not only support to have ICS ability subscriber equipment, also support the existing subscriber equipment that does not possess the ICS ability, non-ICS subscriber equipment is also referred to as traditional subscriber equipment.
Fig. 1 is that legacy user terminals is passed through the Organization Chart that realization IMS centralized control business is inserted in the CS territory, comprises following network element:
101 user terminal User Equipment are called for short UE
102 local circuit territories are inserted adaption function Local CS Access AdaptationFunction-network equivalent and are called for short L-CAAF-n
103 Visited Mobile Switching Center Visited Mobile Switch Center are called for short VMSC
104 home subscriber server Home Subscriber Server are called for short HSS
105 MGCF Media Gateway Control Function are called for short MGCF
106 media gateway Media Gateway are called for short MGW
107IMS circuit domain control function IMS CS Control Function is called for short ICCF
108 CSCF Call Session Control Function are called for short CSCF
109 telecommunication application server Telecom Application Server are called for short TAS
UE 101 sets up 3 paths through the ICCF 107 in L-CAAF-n 102 to IMS territories: session control path, carrying control path and bearer path, wherein:
The session control path is carried on the CS territory, UE 101 adopts the CS control signaling of standard to insert L-CAAF-n 102, L-CAAF-n 102 is if adopt session initiation protocol (Sessioninitiation Protocol on the IP bearer path, be called for short SIP) the transmission session control messages, ICCF 107 is inserted through CSCF 108 in this path so.L-CAAF-n 102 is if adopt unstructured supplementary service data (Unstructured Supplementary Service Data is called for short USSD) transmission session control messages on the circuit domain bearer path, ICCF 107 is inserted through HSS 104 in this path so.
Carrying control path UE 101 adopts the CS control signaling of standard to insert L-CAAF-n 102 and VMSC 103, L-CAAF-n 102 both can separate with VMSC 103, also can unify, be linked into IMS by MGCF 105 then, arrive ICCF 107 by CSCF 108.
Bearer path is by being that UE 101 is linked into IMS by VMSC 103 and MGW 106, and sets up medium with the remote user equipment of this session and be connected.
The IMS centralized traffic is utilized the interactive sessions control information between UE 101 and ICCF 107 of session control path, and sets up and the control media bearer by carrying control path, and ICCF 107 serves as the IMS user agent, replaces subscriber equipment to insert IMS.
TAS 109 servers can provide numerous supplementary services such as calling out maintenance, calling transfer, number demonstration, Call Forwarding for the user, therefore are called supplementary business server again.
Mobile subscriber's forward-shifting service that shuts down is meant: when the contracted user of user C of called subscriber B shuts down behind the forward-shifting service, user B shutdown, closing machine information is kept in the VLR Visitor Location Register (VLR), as calling subscriber A calling party B, critical point exchange (GMSC) is initiated route requests to attaching position register (HLR), HLR initiates the roaming number request to VLR, VLR finds user's shutdown, then tell HLR can not ask roaming number, user's shutdown, the pass machine information that HLR receives is handed down to GMSC with Redirection Information, and GMSC is initiated to the calling of forwarding subscriber C according to the Redirection Information of receiving.
VLR judges that the situation of mobile subscriber's shutdown has two kinds of situations in addition: the one, and user's normal shutdown, notice VLR; The 2nd, user's inertia, VLR is changed to off-mode by timer with state of user.
ICS must support the shutdown forward-shifting service as a kind of telecommunication system.But do not have relevant flow process to realize the shutdown forward-shifting service at present in the IMS centralized control business, need the attainable flow process of service definition for this reason.
Fig. 2 is in the prior art, on session control path, CS territory, IMS user A calls out the traditional mobile subscriber B that inserts from CS, carry out the flow chart of conversation procedure, ICCF utilizes the roaming number of user B to make a call to the called subscriber and sets up process in this flow process, this process is called called process, and flow process is divided following step:
201, CSCF receives called SIP (SessionInitiation Protocol, the session initiation protocol) conversation request message that Calling Side user A initiates to callee side user B.CSCF is routed to the session request telecommunication application server TAS (Telecom Aplication Server) that is responsible for Call Forwarding services.The called conversation request message of TAS route is to ICCF.
202, ICCF uses the SIP session, or use USSD on the circuit domain bearer path by session control path, CS territory on the IP bearer path, to the called request of L-CAAF-n initiation session, carries information such as calling number and called number in the called request;
203, ICCF obtains the roaming number of user B, and the roaming number of utilization acquisition is routed to MGCF with calling subscriber's SIP conversation request through CSCF then;
204, MGCF sends out the initial address message IAM (initial address message) of ISUP (ISDN User Part, ISDNYong Hubufen) to VMSC;
205, VMSC makes a call to set up to L-CAAF-n and asks, and L-CAAF-n issues user B with setup requests, and user B begins ring;
206, user B carries out follow-up conversation procedure.
Fig. 3 is in the prior art, on session control path, CS territory, IMS user A calls out the traditional mobile subscriber B that inserts from CS, carry out the flow chart of conversation procedure, L-CAAF-n uses the address of ICCF to make a call to ICCF and sets up process in this flow process, this process is called the caller process, and flow process is divided following step:
301, CSCF receives the called SIP conversation request message that Calling Side user A initiates to callee side user B.CSCF is routed to the session request TAS that is responsible for Call Forwarding services.The called conversation request message of TAS route is to ICCF.
302, ICCF distributes an ICCF address for user B, by session control path, CS territory, on the IP bearer path, use the SIP session, or on the circuit domain bearer path, use USSD, to the called request of L-CAAF-n initiation session, carry the ICCF address in the request message;
303, after L-CAAF-n receives conversation request message, immediately called number is used as in the ICCF address, makes a call to set up to ICCF and ask;
304, ICCF responds this conversation request, and sends out ALERTING message to L-CAAF-n, and L-CAAF-n and user B carry out session and set up process, and L-CAAF-n notifies user B ring then;
305, user B carries out follow-up conversation procedure.
In addition, in the prior art, the unregistered forward-shifting service of user (CommunicationForwarding Not Logged-in in the IMS territory, be called for short CFNL) be in AS, to carry out to handle, this needs CSCF unit ICCF to know the login state of IMS terminal, by third-party registration notice AS, carry out forward-shifting service by AS.And in existing IMS centralized control business, traditional UE off-mode of non-ICS is not also known in the IMS territory, particularly VLR can't solve the situation that the inertia user is changed to off-mode, therefore can't be implemented in the supplementary service of changeing before the CS legacy user shuts down in the centralized control business of IMS territory by prior art, need be in IMS centralized control business, for the user changes the attainable flow process of definition before shutting down.
Summary of the invention
The method that technical problem to be solved by this invention provides user in a kind of IP Multimedia System centralized control business changes before shutting down has realized changeing before the shutdown of CS legacy user in the centralized control business of IMS territory.
In order to address the above problem, the invention provides the method for changeing before the user shuts down in a kind of IP Multimedia System centralized control business, may further comprise the steps:
A, IP Multimedia System circuit domain control function unit are sent to the local circuit territory with called request message and insert adaptation function;
B, local circuit territory are inserted adaptation function and are obtained the information that the called subscriber has shut down;
Adaptation function is inserted by the session control path in c, local circuit territory, sends user's shutdown message to IP Multimedia System circuit domain control function unit;
D, IP Multimedia System circuit domain control function unit will represent that the session initiation protocol response message of user's shutdown passes to telecommunication application server, and telecommunication application server is controlled the triggering of shutdown forward-shifting service according to the session initiation protocol response message of described expression user shutdown.
Further, said method also can comprise, among the described step b, if described local circuit territory is inserted adaptation function and is not preserved User Status, after then described local circuit territory access adaptation function and Visited Mobile Switching Center carry out information interaction, described Visited Mobile Switching Center finds that according to the called subscriber's of the storage of VLR Visitor Location Register state the called subscriber shuts down, called subscriber's shutdown message is issued described local circuit territory insert adaptation function.
Further, said method also can comprise, among the described step b, has preserved User Status if adaptation function is inserted in described local circuit territory, the called subscriber condition of adaptation function according to storage inserted in then described local circuit territory, obtains the information that the called subscriber has shut down.
Further, said method also can comprise, among the described step c, if carry by circuit domain in described session control path, then by unstructured supplementary service data transmission MAP error response message, described MAP error response message is carried called subscriber's cause value that shuts down.
Further, said method also can comprise, the described called subscriber cause value that shuts down is the absent subscriber.
Further, said method also can comprise, among the described step c, if carry by IP in described session control path, then transmits user's shutdown message by the session initiation protocol response message.
Further, said method also can comprise, if by unstructured supplementary service data transmission MAP error response message, in the then described steps d, described IP Multimedia System circuit domain control function unit is mapped as the session initiation protocol response message with described MAP error response message.
Further, said method can comprise that also in the described steps d, described Session initiation Protocol response message is session initiation protocol 503 message, and described session initiation protocol 503 message represent that the user shuts down.
Further, said method can comprise that also in the described steps d, described IP Multimedia System circuit domain control function unit is delivered to telecommunication application server with described session initiation protocol response message through the CSCF unit.
Further, said method also can comprise, among the described step a, after the CSCF unit receives the called request message of Calling Side, with described called request message process telecommunication application server, be sent to described IP Multimedia System circuit domain control function unit according to initial filter standard or norm.
Compared with prior art, use the present invention, the IMS territory does not need to obtain the off-mode of CS legacy user when CS inserts, the user that just can realize CS legacy user in the IMS centralized control business forward-shifting service that shuts down.
Description of drawings
Fig. 1 is an existing IMS centralized control service application scene session path schematic diagram;
Fig. 2 is that ICCF and called subscriber's conversation procedure adopts called process in the existing IMS centralized control business, realizes the forward-shifting service flow chart during IMS customer call legacy user;
Fig. 3 is in the existing IMS centralized control business, and ICCF and called subscriber's conversation procedure adopts the caller process, realizes the forward-shifting service flow chart during IMS customer call legacy user;
Fig. 4 is the shut down flow chart of forward shifting method of user in a kind of IMS centralized control business in the specific embodiment of the invention;
Fig. 5 is in the IMS centralized control business of the present invention, the flow chart of first embodiment of changeing before the realization user shuts down during IMS customer call legacy user;
Fig. 6 is in the IMS centralized control business of the present invention, the flow chart of second embodiment of changeing before the realization user shuts down during IMS customer call legacy user.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is described further.
In the described method of the specific embodiment of the invention, after called request message sent to the CSCF unit, the CSCF unit sent to ICCF unit with called request message through TAS according to initial filter standard or norm; L-CAAF-n is issued with called request message in the ICCF unit on session control path, CS territory; L-CAAF-n obtains the information that the user has shut down, and L-CAAF-n passes to ICCF with user's shutdown message by the session control path, and ICCF passes to TAS with user's shutdown message, finally triggers user's forward-shifting service flow process of shutting down by TAS.
L-CAAF-n obtains two kinds of possibilities of information existence that the user has shut down,
First kind of situation, L-CAAF-n does not preserve called subscriber condition, and it can be by carrying out information interaction with VMSC, and VMSC issues L-CAAF-n with the information that the user has shut down;
Second kind of situation, L-CAAF-n has preserved called subscriber condition, and it can judge directly whether the user shuts down.
L-CAAF-n passes to ICCF by the session control path with user's shutdown message dual mode, a kind of is to use USSD when circuit domain is carried, pass to the ICCF unit with carrying the shut down MAP error response message of cause value of user, the ICCF unit is mapped as SIP 503 user's shutdown message with it and passes to TAS; Another kind is to use the SIP session when IP carries, and will represent that user's SIP 503 user's shutdown message of shutting down pass to the ICCF unit, and ICCF passes to TAS again.
As shown in Figure 4, user's forward shifting method that shuts down in a kind of IMS centralized control business may further comprise the steps:
Step 10, IMS circuit domain control function unit are sent to the local circuit territory with called request message and insert adaptation function;
Step 20, local circuit territory are inserted adaptation function and are obtained the information that the called subscriber has shut down;
Adaptation function is inserted by the session control path in step 30, local circuit territory, sends user's shutdown message to IMS circuit domain control function unit;
Step 40, IMS circuit domain control function unit will represent that the session initiation protocol response message of user's shutdown passes to telecommunication application server, and telecommunication application server is controlled the triggering of shutdown forward-shifting service according to the session initiation protocol response message of described expression user shutdown.
The invention will be further described below in conjunction with instantiation.
First embodiment,
As shown in Figure 5, use the circuit domain bearer path when the session control path, the described method detailed process of the specific embodiment of the invention is as follows:
Step 401, CSCF unit CSCF receives the called request message of Calling Side to traditional called subscriber's initiation in CS territory, and CSCF issues telecommunication application server (TAS) according to initial filter standard or norm (iFC) with called request message;
Step 402, telecommunication application server is sent to IMS circuit commutative field controlled function unit ICCF with called request message through CSCF;
Step 403, it is the called request message of USSD that ICCF changes called request message, the called request message of USSD is sent to the local circuit territory through home subscriber server HSS insert adaptation function L-CAAF-n;
It is the called request message of USSD that ICCF changes called request message, described called request message carries dialing number information, called number information and ICCF information, the called request message of USSD is sent to the local circuit territory through home subscriber server HSS insert adaptation function L-CAAF-n;
Step 404, L-CAAF-n obtains the information that the user has shut down;
Have two kinds of situations, first kind of situation, L-CAAF-n does not preserve User Status, L-CAAF-n just carries out information interaction with Visited Mobile Switching Center (VMSC), VMSC judges that according to the called subscriber's of VLR Visitor Location Register (VLR) storage state the user shuts down, and user's shutdown message is issued L-CAAF-n; Second kind of situation, L-CAAF-n has preserved User Status, and it can judge that the user shuts down according to called subscriber's state.
Step 405, L-CAAF-n uses USSD on the session control path, send the MAP error response message to ICCF;
Described MAP error response message is carried called subscriber's cause value that shuts down, and the shut down error reason of cause value indication user shutdown of user can be the absent subscriber.
Step 406, ICCF will carry the shut down MAP error response message of cause value of user and be mapped as the session initiation protocol response message, and by CSCF this sip response message will be passed to telecommunication application server TAS;
Session initiation protocol (SIP) response message, expression user shutdown.
Described sip response message can be SIP 503 message.
Step 407, telecommunication application server TAS is according to the triggering of described session initiation protocol response message control shutdown forward-shifting service, carry out follow-up user shut down before the turn of tidal stream journey.
Second embodiment,
As shown in Figure 6, use the IP bearer path when the session control path, the described method detailed process of the specific embodiment of the invention is as follows:
Step 501, CSCF unit CSCF receives the called request message of Calling Side to traditional called subscriber's initiation in CS territory, and CSCF issues telecommunication application server (TAS) according to initial filter standard or norm (iFC) with called request message;
Step 502, TAS is sent to IMS circuit commutative field controlled function unit ICCF with called request message through CSCF;
Step 503, ICCF inserts adaptation function L-CAAF-n to the local circuit territory and initiates the SIP conversation request message by the CSCF route on session control path, CS territory;
Described SIP conversation request message is carried dialing number information, called number information and ICCF information etc.
Step 504, L-CAAF-n obtains the information that the user has shut down;
Have two kinds of situations, first kind of situation L-CAAF-n do not preserve User Status, L-CAAF-n just carries out information interaction with Visited Mobile Switching Center (VMSC), VMSC judges that according to the called subscriber's of VLR Visitor Location Register (VLR) storage state the user shuts down, and user's shutdown message is issued L-CAAF-n; Second kind of situation L-CAAF-n preserved User Status, and it can judge that the user shuts down according to called subscriber's state.
Step 505, L-CAAF-n by the CSCF route, sends session initiation protocol (SIP) response message to ICCF on the session control path;
The session initiation protocol response message, expression user shutdown, described sip response message can be SIP503 message.
Step 506, ICCF is passed to telecommunication application server TAS by the CSCF route with this sip response message;
Step 507, telecommunication application server TAS is according to the triggering of described session initiation protocol response message control shutdown forward-shifting service, carry out follow-up user shut down before the turn of tidal stream journey.
Method described in the specific embodiment of the invention is not need to obtain the off-mode of non-ICS UE when CS inserts in the IMS territory, just can finish in the IMS centralized control business user's forward-shifting service that shuts down.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. the method for changeing before the user shuts down in the IP Multimedia System centralized control business is characterized in that, may further comprise the steps:
A, IP Multimedia System circuit domain control function unit are sent to the local circuit territory with called request message and insert adaptation function;
B, local circuit territory are inserted adaptation function and are obtained the information that the called subscriber has shut down;
Adaptation function is inserted by the session control path in c, local circuit territory, sends user's shutdown message to IP Multimedia System circuit domain control function unit;
D, IP Multimedia System circuit domain control function unit will represent that the session initiation protocol response message of user's shutdown passes to telecommunication application server, and telecommunication application server is controlled the triggering of shutdown forward-shifting service according to the session initiation protocol response message of described expression user shutdown.
2. the method for claim 1, it is characterized in that, among the described step b, if described local circuit territory is inserted adaptation function and is not preserved User Status, after then described local circuit territory access adaptation function and Visited Mobile Switching Center carry out information interaction, described Visited Mobile Switching Center finds that according to the called subscriber's of the storage of VLR Visitor Location Register state the called subscriber shuts down, called subscriber's shutdown message is issued described local circuit territory insert adaptation function.
3. the method for claim 1, it is characterized in that, among the described step b, preserved User Status if adaptation function is inserted in described local circuit territory, the called subscriber condition of adaptation function according to storage inserted in then described local circuit territory, obtains the information that the called subscriber has shut down.
4. the method for claim 1, it is characterized in that, among the described step c, if carry by circuit domain in described session control path, then by unstructured supplementary service data transmission MAP error response message, described MAP error response message is carried called subscriber's cause value that shuts down.
5. method as claimed in claim 4 is characterized in that, described called subscriber shuts down cause value for the absent subscriber.
6. the method for claim 1 is characterized in that, among the described step c, if carry by IP in described session control path, then transmits user's shutdown message by the session initiation protocol response message.
7. method as claimed in claim 4, it is characterized in that, if by unstructured supplementary service data transmission MAP error response message, in the then described steps d, described IP Multimedia System circuit domain control function unit is mapped as the session initiation protocol response message with described MAP error response message.
8. the method for claim 1 is characterized in that, in the described steps d, described session initiation protocol response message is session initiation protocol 503 message, and described session initiation protocol 503 message represent that the user shuts down.
9. the method for claim 1 is characterized in that, in the described steps d, described IP Multimedia System circuit domain control function unit is delivered to telecommunication application server with described session initiation protocol response message through the CSCF unit.
10. the method for claim 1 is characterized in that, among the described step a, further comprise,
After the CSCF unit receives the called request message of Calling Side, with described called request message process telecommunication application server, be sent to described IP Multimedia System circuit domain control function unit according to initial filter standard or norm.
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| WO2009015532A1 (en) * | 2007-08-01 | 2009-02-05 | Zte Corporation | A method for communication forwarding of user power off with ip multimedia subsystem centralized service |
| CN101448223B (en) * | 2008-04-10 | 2011-12-07 | 中兴通讯股份有限公司 | Method for realizing call holding and call recover of circuit switched domain accessed IP multimedia subsystem |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859426A (en) * | 2006-03-20 | 2006-11-08 | 华为技术有限公司 | Method for connecting multimedia subsystem of circuit field terminal and its realizing device |
| WO2006125474A1 (en) * | 2005-05-27 | 2006-11-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Call forwarding in an ip multimedia subsystem (ims) |
| CN1925525A (en) * | 2005-09-01 | 2007-03-07 | 华为技术有限公司 | Method for realizing bridged collection of IP multimedia subsystem |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2006125474A1 (en) * | 2005-05-27 | 2006-11-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Call forwarding in an ip multimedia subsystem (ims) |
| CN1925525A (en) * | 2005-09-01 | 2007-03-07 | 华为技术有限公司 | Method for realizing bridged collection of IP multimedia subsystem |
| CN1859426A (en) * | 2006-03-20 | 2006-11-08 | 华为技术有限公司 | Method for connecting multimedia subsystem of circuit field terminal and its realizing device |
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