CN102612141B - Mobile switching centre obtains the method and system of IMS control point information - Google Patents
Mobile switching centre obtains the method and system of IMS control point information Download PDFInfo
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- CN102612141B CN102612141B CN201110021992.2A CN201110021992A CN102612141B CN 102612141 B CN102612141 B CN 102612141B CN 201110021992 A CN201110021992 A CN 201110021992A CN 102612141 B CN102612141 B CN 102612141B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1033—Signalling gateways
- H04L65/104—Signalling gateways in the network
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Abstract
The invention discloses the method and system that a kind of mobile switching centre obtains IMS control point information.The method includes：IMS control point information is supplied to Serving GPRS Support Node by application server；The IMS control point information is sent to base station sub-system by the Serving GPRS Support Node；The IMS control point information is sent to the mobile switching centre by the base station sub-system.Using the present invention mobile switching centre can be made to increase new interface and agreement can just obtain IMS control point information.
Description
Technical field
The present invention relates to IMS (IP Multimedia Subsystem, IP multimedia subsystem), more particularly to a kind of MSC
(mobile switching centre) obtains the method and system of ICP (IMS control point) information.
Background technology
IMS is carried by 3GPP (3rd Generation Partnership Project, third generation partner program)
A kind of IP-based network architecture for going out, it constructs an opening and flexible service environment, supports multimedia application, and energy
Enough provide the user abundant multimedia service.
In IMS business systems, key-course and operation layer are to separate, and key-course does not provide specific business, only to business
Layer provides the functions such as necessary triggering, routing and charging.
Business triggering and control function are by CSCF (Call Session Control Function, calling in key-course
Conversation control function) complete.CSCF points is three types：P-CSCF(Proxy-Call Session Control
Function, proxy CSCF), I-CSCF (Interrogating-Call Session Control Function, inquiry
) and S-CSCF (Serving-Call Session Control Function, serving CSCF) CSCF；Wherein, the negative masters of S-CSCF
Responsibility is wanted, I-CSCF is optional.In addition, there are some auxiliary network elements in IMS business systems, such as IBCF (is controlled on IMS borders
Function processed) and ATCF (accessing transfer control function) etc..
Operation layer is made up of a series of AS (Application Server, application server), and provides specific business clothes
Business.AS can be independent entity, it is also possible to be present in S-CSCF.S-CSCF is touched according to the CAMEL-Subscription-Information control business of user
Hair, calls the business on AS, realizes business function.
End-to-end equipment in session is referred to as UE (User Equipment, user equipment), is responsible for being interacted with user.
Some UE have the mode of various access to mobile network, such as by the PS (Packet Switch, packet switch) of 3GPP mobile networks
Domain access to mobile network, by non-3 gpp mobile network (such as CDMA (CDMA) 1X or Wimax (worldwide interoperability for microwave accesses)
Network) ps domain access to mobile network, it might even be possible to connect by CS (Circuit Switch, circuit switching) domain of mobile network
Enter mobile network.Mobile network includes base station sub-system and core net, and core network element can be SGSN (service GPRS Zhi Chijie
Point), GGSN (Gateway GPRS Support Node), MME (mobile management entity), MSC, PCF (Packet Control Function) or PDSN (packet
Data serving node) etc..In order to realize UE interacting in CS domains and IMS network, MSC is needed to be obtained in that in some cases
ICP information, ICP can be the entity with IMS signaling control functions such as P-CSCF, I-CSCF, IBCF, ATCF or AS, or even
Can be the MSC with IMS signaling capabilitys.
Fig. 1 is the flow chart that MSC obtains ICP information in the prior art, and obtaining flow includes：
Step 101：UE initiates attach request to mobile network, such as send attachment to the base station sub-system for own services
Request (Attach Request) message；Wherein, base station sub-system can be base station system (BSS, Base Station
) or radio network controller (RNC, Radio Network Controller) System.
Step 102：Attach Request message is sent to MSC by base station sub-system.
Step 103：After MSC receives Attach Request message, it is allowed to which UE adheres to and uses mobile network, then sent to UE and permitted
Perhaps message is adhered to, such as attachment receives (Attach Accept) message, this allows to adhere to message travels base station sub-system.
Step 104：Base station sub-system will allow attachment message to be sent to UE.
Step 105：After MSC allows UE to adhere to and uses mobile network, registration request is initiated to the ownership IMS network of UE,
Registration (Register) message such as is sent to the S-CSCF in the ownership IMS network of UE, the registration message belongs to IMS signalings.
Step 106：S-CSCF allows UE to access IMS network, then returns to registration response to MSC, such as send " 200OK "
Message, is somebody's turn to do " 200OK " message and belongs to IMS signalings.
Step 107：The access service and P-CSCF that UE is provided by ps domain initiate registration to the ownership IMS network of UE please
Ask, such as send Register message to P-CSCF, with the business provided using IMS network；Wherein, Register message belongs to
IMS signalings.
Following steps are situations of the ICP not on AS.
If ICP is between P-CSCF and S-CSCF, such as on IBCF, then include：
Step 108a：After P-CSCF receives registration request, selection services the ICP of the UE, and the registration request is transmitted to
The ICP.
Step 109a：After ICP receives registration request, another registration request is sent to S-CSCF, in another registration request
ICP information is carried, the ICP information can be the information for directly positioning ICP, such as number of ICP, address or mark, it is also possible to
It is the information of indirect addressing ICP, such as index of ICP can also be any combination of above-mentioned various information.
Step 110a：S-CSCF allows UE to access IMS network and the business provided using IMS network, then returns to registration
Response, such as send " 200OK " message, is somebody's turn to do " 200OK " message and belongs to IMS signalings.
Step 111a：Registration is responsive to up to ICP, and registration response is transmitted to P-CSCF by ICP.
If ICP is on P-CSCF, step 108a-111a is reduced to：
After P-CSCF receives registration request, another registration request is sent to S-CSCF, carried in another registration request
ICP information.
S-CSCF allows UE to access IMS network and the business provided using IMS network, and then returning to registration to P-CSCF rings
Should, such as " 200OK " message is sent, it is somebody's turn to do " 200OK " message and belongs to IMS signalings.
If ICP is on S-CSCF, step 108a-111a is reduced to：
After P-CSCF receives registration request, the registration request is transmitted to S-CSCF.
S-CSCF allows UE to access IMS network and the business provided using IMS network, and then returning to registration to P-CSCF rings
Should, such as " 200OK " message is sent, it is somebody's turn to do " 200OK " message and belongs to IMS signalings.
Following steps are situations of the ICP on AS.
Step 108b：After P-CSCF receives registration request, the registration request is transmitted to S-CSCF.
Step 109b：S-CSCF allows UE to access IMS network and the business provided using IMS network, then to P-CSCF
Registration response is returned, such as sends " 200OK " message, be somebody's turn to do " 200OK " message and belong to IMS signalings.
Step 110b：S-CSCF forwards registration request to ICP.
Step 111b：After ICP receives registration request, registration response is returned to S-CSCF, ICP is carried in registration response
Information, the ICP information can be the information for directly positioning ICP, such as number of ICP, address or mark, or indirect addressing
The index of the information of ICP, such as ICP, can also be any combination of above-mentioned various information.
Following steps are the follow-up common steps of above-mentioned two situations.
Step 112：After P-CSCF receives the registration response of step 111a or 109b, the registration is forwarded to respond to UE.
Step 113：After S-CSCF obtains ICP information, the ICP information of acquisition is notified to MSC, such as to be sent to MSC
Notify (notice) message, carries the ICP information of acquisition in the Notify message, and the Notify message belongs to IMS signalings.
Can be seen that MSC in the prior art by above flow must support IMS signalings and complete to replace the registration process of UE
ICP information could be obtained；If MSC does not support IMS signalings, in order to the flow shown in application drawing 1, it is necessary to increase new
Interface and agreement are so that MSC can carry out interacting message with S-CSCF, therefore the application scenarios of above-mentioned flow are very limited.
The content of the invention
In view of this, the method and system of ICP information are obtained it is a primary object of the present invention to provide a kind of MSC, makes MSC
New interface and agreement need not be increased can just obtain ICP information.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of method that mobile switching centre obtains IMS control point information, methods described includes：
IMS control point information is supplied to Serving GPRS Support Node by application server；
The IMS control point information is sent to base station sub-system by the Serving GPRS Support Node；
The IMS control point information is sent to the mobile switching centre by the base station sub-system.
Further, when IMS control point is not on the application server, IMS control point is believed in application server
Before breath is supplied to Serving GPRS Support Node, methods described also includes：
The IMS control point information is sent to the application server by IMS control point by IMS processes.
Further, IMS control point information is supplied to the Serving GPRS Support Node to be by the application server：
The notification message that the application server will carry the IMS control point information is sent to the service GPRS branch
Serve as a diplomatic envoy a little；Or
The new information that the application server will carry the IMS control point information is sent to home subscriber service
Device；The notification message that the home subscriber server will carry the IMS control point information is sent to the service GPRS branch
Serve as a diplomatic envoy a little.
Further, the IMS control point information is sent to the mobile switching centre and is by the base station sub-system：
In call request or handover request be sent to for IMS control point information carrying described by the base station sub-system
Mobile switching centre.
A kind of system that mobile switching centre obtains IMS control point information, the system includes：Application server, service
GPRS Support Node, base station sub-system and mobile switching centre；Wherein,
Application server, for IMS control point information to be supplied into Serving GPRS Support Node；
Serving GPRS Support Node, for the IMS control point information to be sent into base station sub-system；
Base station sub-system, for the IMS control point information to be sent into mobile switching centre；
Mobile switching centre, for receiving the IMS control point information that the base station sub-system is sent.
The application server is further used for：When IMS control point is not on the application server, receive described
The IMS control point information that IMS control point is sent by IMS processes.
Further, the system also includes：Home subscriber server, for taking of receiving that the application server sends
New information with the IMS control point information, and the notification message of the IMS control point information will be carried be sent to institute
State Serving GPRS Support Node.
Further, the base station sub-system is further used for：The IMS control point information is carried in call request or
The mobile switching centre is sent in handover request.
As can be seen from the above technical solutions, in the present invention, ICP information is to be supplied to base station sub-system by SGSN, then by
Base station sub-system is supplied to MSC's, therefore MSC can not support IMS signalings, it is possible to do not increase new interface and agreement with regard to energy
ICP information is obtained, so present invention could apply to more application scenarios.
Brief description of the drawings
Fig. 1 is the flow chart that MSC obtains ICP information in the prior art；
Fig. 2 obtains the flow chart of ICP information for the MSC of the embodiment of the present invention one；
Fig. 3 obtains the flow chart of ICP information for the MSC of the embodiment of the present invention two；
Fig. 4 is the structure chart of the system that a kind of MSC of the embodiment of the present invention obtains ICP information.
Specific embodiment
The present invention is described in further detail below by way of several embodiments.
Embodiment one
Fig. 2 be the embodiment of the present invention one MSC obtain ICP information flow chart, describe UE CS domains initiate calling after,
By MSC by CS call anchorings IMS domain process, the process includes：
Step 201：UE initiates registration request by ps domain to IMS network, such as send Register message.
Step 202：Registration request is transmitted to ICP by registration request by way of P-CSCF, P-CSCF.
Step 203：ICP forwards another registration request to S-CSCF, and ICP information is carried in another registration request, should
ICP information can be the information for directly positioning ICP, such as letter of the number of ICP, address or mark, or indirect addressing ICP
Breath, such as index of ICP, can also be any combination of above-mentioned various information.
Step 204：S-CSCF allows UE to access IMS network, then returns to registration response, such as send " 200OK " message.
Step 205：After ICP receives registration response, registration response is transmitted to P-CSCF.
Step 206：After P-CSCF receives registration response, registration response is transmitted to UE.
Step 202-206 describes situations of the ICP between P-CSCF and S-CSCF, and such as ICP is on IBCF or MSC；
Wherein, MSC herein can be the MSC (MSC i.e. shown in Fig. 2) of other MSC, or UE attachments.
If ICP is on P-CSCF, step 202-206 is reduced to：
After P-CSCF receives registration request, another registration request is forwarded to S-CSCF, carried in another registration request
ICP information；
S-CSCF allows UE to access IMS network, then returns to registration response, such as send " 200OK " message；
After P-CSCF receives registration response, registration response is transmitted to UE.
If ICP is on S-CSCF, step 202-206 is reduced to：
Registration request is transmitted to S-CSCF by registration request by way of P-CSCF, P-CSCF；
S-CSCF allows UE to access IMS network, then returns to registration response；
After P-CSCF receives registration response, registration response is transmitted to UE.
Above-mentioned these steps belong to IMS registration process, and UE and IMS network are likely present other IMS message interaction process,
Such as UE initiates IMS calling procedures, and when Invite (invitation) message of IMS call requests is by ICP, (ICP is not in S- for ICP
On CSCF) ICP information can be also carried in the Invite message forwarded to S-CSCF.
Step 207：S-CSCF carries the registration request of ICP information according to the CAMEL-Subscription-Information of UE to AS forwardings.
In IMS calling procedures, what S-CSCF was forwarded to AS is the Invite message that carries ICP information.
Step 208：AS returns to registration response to S-CSCF, such as send " 200OK " message.
Step 209：The notification message that AS will carry ICP information is sent to SGSN, such as when SGSN does not support IMS signalings
When, transmission carries Insert Subscriber Data (insertion user data) message of ICP information；Or when SGSN is supported
During IMS signalings, transmission carries Publish (issue) message or Options (option) message of ICP information.
Step 210：SGSN notifies the ICP information of acquisition to base station sub-system, such as to send and carry ICP information
Common ID (public identifier) message.
Step 211：UE sends call request in CS domains to MSC, such as send Setup (foundation) message.
Step 212：After receiving call request, base station sub-system forwards another call request, another call request to MSC
In carry ICP information.
So far, MSC obtains ICP information.
Step 213：MSC sends call request according to ICP information to ICP, such as when MSC does not support IMS signalings, send
IAM (Initial Address Message, initial address message)；Or when MSC supports IMS signalings, send Invite and disappear
Breath.
Step 214：ICP continues follow-up IMS calling procedures.
Step 215：After ICP receives called response, call is sent to MSC, such as when MSC does not support IMS signalings
When, send ANM (Answer Message, response message)；Or when MSC supports IMS signalings, send " 200OK " message.
Be can be seen that when MSC does not support IMS signalings by step 213-215, common signaling message and ICP can be used
Carry out interacting message；When MSC supports IMS signalings, interacting message can be carried out with IMS signalings and ICP.
Step 216-217：MSC sends call via base station sub-system to UE, such as send Connect (connection) and disappear
Breath, the Connect message travels base station sub-systems.
If ICP is on AS, the ICP information that AS is sent to SGSN in step 209 is generated by AS, rather than by S-
CSCF forwardings come, and step 202-208 is changed into：
Registration request is transmitted to S-CSCF by registration request by way of P-CSCF, P-CSCF；
S-CSCF allows UE to access IMS network, then returns to registration response, such as send " 200OK " message；
After P-CSCF receives registration response, registration response is transmitted to UE；
S-CSCF forwards registration request according to the CAMEL-Subscription-Information of UE to AS；
AS returns to registration response to S-CSCF, such as send " 200OK " message.
From the deformation of above step 202-208, when ICP is on AS, the registration request or Invite message of forwarding
In there is no ICP information.
Embodiment two
Fig. 3 is the flow chart of the MSC acquisition ICP information of the embodiment of the present invention two, describes sessions of the UE in CS domains and is turned
Ps domain is moved on to, the process shifted notifying ICP by MSC therebetween, the process includes：
Step 301-308：It is identical with step 201-208 in Fig. 2, will not be repeated here.
Step 309：AS will carry ICP information new information be sent to HSS (Home Subscriber Server,
Home subscriber server), such as send Sh-push (Sh- push) message for carrying ICP information.
If ICP is on AS, ICP information is generated by AS；Otherwise, ICP information is transmitted to AS by S-CSCF.
Step 310：HSS sends the notification message for carrying ICP information to SGSN, such as send and carry ICP information
Insert Subscriber Data message.
Step 309-310 can also be replaced by the step 209 in Fig. 2.
Step 311：SGSN notifies the ICP information of acquisition to base station sub-system, such as to send and carry ICP information
Common ID message.
Step 312：In CS domains already-existing session, such as UE initiates calling or has meeting in the receiving calling of CS domains UE in CS domains
Words, during session is carried out, base station sub-system determines for the CS domains session of UE to be switched to ps domain, i.e. base station sub-system triggering CS domains
To the handoff procedure of ps domain.
Step 313：Base station sub-system sends the handover request for carrying ICP information to MSC, such as send and carry ICP
Handover Request (handover request) message or Relocation Request (redirecting request) message of information.
So far, MSC obtains ICP information.
Step 314：MSC sends transfer request according to ICP information to ICP, such as when MSC does not support IMS signalings, send
IAM message；Or when MSC supports IMS signalings, send Invite message.
Step 315：ICP returns to transfer response to MSC, such as send " 200OK " message.
Step 316-317：MSC notifies that UE is switched to ps domain via base station sub-system, such as send Handover
Command (switching command) message.
Step 318：With step 315 simultaneously, the WMG of ICP initiations reconstruction ICP controls is connected with the media of distal end UE
Process, such as send reInvite (again invite) message to distal end UE, or Invite message is sent and from AS to distal end to AS
UE sends reInvite message.
Step 319：After step 317, UE modulation accesses IMS network to ps domain by ps domain.
Step 320：UE initiates transfer request in ps domain, such as send Invite message or reInvite message.
Step 321：After ICP receives transfer request, transfer response is returned to UE, such as send " 200OK " message.
Step 322：ICP is connected according to the WMG that the transfer request that UE is initiated sets up ICP controls with the media of UE, and
Being acted on by the bridge joint of ICP allows UE to continue to be conversated with distal end UE in ps domain.
Process in embodiment two after step 313 can also have other implementations, and embodiment two is only illustrated wherein
A kind of implementation of situation, but process after step 313 has no effect on the process between step 301-313.
To realize the above method, the embodiment of the present invention also provides the system that a kind of MSC obtains ICP information.As shown in figure 4,
The system includes：AS, SGSN, base station sub-system and MSC；Wherein,
AS, for ICP information to be supplied into SGSN；
SGSN, for the ICP information to be sent into base station sub-system；
Base station sub-system, for the ICP information to be sent into MSC；
MSC, for receiving the ICP information that the base station sub-system is sent.
The AS is further used for：When ICP is not on the AS, receive the ICP by IMS processes send it is described
ICP information.How ICP sends ICP information and can be found in step 203-207 by IMS processes to AS, will not be repeated here.
The system also includes：HSS, for receiving the new information for carrying the ICP information that the AS sends, and
The notification message that the ICP information will be carried is sent to the SGSN.
The base station sub-system is further used for：The ICP information is carried and is sent in call request or handover request
To the MSC.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.
Claims (8)
1. a kind of method that mobile switching centre obtains IMS control point information, it is characterised in that methods described includes：
IMS control point information is supplied to Serving GPRS Support Node by application server；
The IMS control point information is sent to base station sub-system by the Serving GPRS Support Node；
The IMS control point information is sent to the mobile switching centre by the base station sub-system.
2. the method that mobile switching centre according to claim 1 obtains IMS control point information, it is characterised in that work as IMS
When control point is not on the application server, IMS control point information is supplied to service GPRS Zhi Chijie in application server
Before point, methods described also includes：
The IMS control point information is sent to the application server by IMS control point by IMS processes.
3. the method that mobile switching centre according to claim 1 obtains IMS control point information, it is characterised in that described
IMS control point information is supplied to the Serving GPRS Support Node to be by application server：
The notification message that the application server will carry the IMS control point information is sent to the service GPRS Zhi Chijie
Point；Or
The new information that the application server will carry the IMS control point information is sent to home subscriber server；Institute
State home subscriber server and will carry the notification message of the IMS control point information and be sent to the service GPRS Zhi Chijie
Point.
4. the method that mobile switching centre according to claim 1 obtains IMS control point information, it is characterised in that described
The IMS control point information is sent to the mobile switching centre by base station sub-system：
The IMS control point information is carried and the movement is sent in call request or handover request by the base station sub-system
Switching centre.
5. the system that a kind of mobile switching centre obtains IMS control point information, it is characterised in that the system includes：Using clothes
Business device, Serving GPRS Support Node, base station sub-system and mobile switching centre；Wherein,
Application server, for IMS control point information to be supplied into Serving GPRS Support Node；
Serving GPRS Support Node, for the IMS control point information to be sent into base station sub-system；
Base station sub-system, for the IMS control point information to be sent into mobile switching centre；
Mobile switching centre, for receiving the IMS control point information that the base station sub-system is sent.
6. the system that mobile switching centre according to claim 5 obtains IMS control point information, it is characterised in that described
Application server is further used for：When IMS control point is not on the application server, receives the IMS control point and pass through
The IMS control point information that IMS processes are sent.
7. the system that mobile switching centre according to claim 5 obtains IMS control point information, it is characterised in that described
System also includes：Home subscriber server, the IMS control point information is carried for receive that the application server sends
New information, and the notification message of the IMS control point information will be carried be sent to the Serving GPRS Support Node.
8. the system that mobile switching centre according to claim 5 obtains IMS control point information, it is characterised in that described
Base station sub-system is further used for：The IMS control point information is carried described in being sent in call request or handover request
Mobile switching centre.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110021992.2A CN102612141B (en) | 2011-01-19 | 2011-01-19 | Mobile switching centre obtains the method and system of IMS control point information |
| PCT/CN2012/070418 WO2012097714A1 (en) | 2011-01-19 | 2012-01-16 | Method and system for mobile switching center to obtain ims control point information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110021992.2A CN102612141B (en) | 2011-01-19 | 2011-01-19 | Mobile switching centre obtains the method and system of IMS control point information |
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| CN102612141A CN102612141A (en) | 2012-07-25 |
| CN102612141B true CN102612141B (en) | 2017-06-13 |
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| WO (1) | WO2012097714A1 (en) |
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| CN101577894A (en) * | 2008-08-07 | 2009-11-11 | 中兴通讯股份有限公司 | Method and system for registering integrated service of IP multimedia subsystem |
| CN101494700A (en) * | 2009-02-17 | 2009-07-29 | 华为技术有限公司 | Method for providing business to circuit domain user by server, server and system |
| WO2010133124A1 (en) * | 2009-05-22 | 2010-11-25 | 华为技术有限公司 | Method, system and network device for evolving circuit switched domain core network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102612141A (en) | 2012-07-25 |
| WO2012097714A1 (en) | 2012-07-26 |
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