CN1885859B - Method for holding combined circuit domain calling and Internet multimedia subsystem conversation - Google Patents
Method for holding combined circuit domain calling and Internet multimedia subsystem conversation Download PDFInfo
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- CN1885859B CN1885859B CN2005100795086A CN200510079508A CN1885859B CN 1885859 B CN1885859 B CN 1885859B CN 2005100795086 A CN2005100795086 A CN 2005100795086A CN 200510079508 A CN200510079508 A CN 200510079508A CN 1885859 B CN1885859 B CN 1885859B
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Abstract
The related method to support calling and internet multimedia subsystem dialogue comprises: user A and B build a CS domain calling; terminal of A/B obtains all capacity and IP address of B/A terminal; one side for CSI business carries called IP address in invitation information, and the S-CSCF sends the information only terminal with matched IP address. This invention is benefit to take CSI business.
Description
Technical field
The present invention relates to 3G (Third Generation) Moblie, particularly relate to the circuit domain call of merging and the capabilities exchange of internet multimedia subsystem dialogue.
Background technology
Internet IP multimedia subsystem, IMS (hereinafter to be referred as IMS) be 3GPP formulate provide a kind of structural framing (seeing Fig. 1 for details) of Internet multimedia service for the user.Utilize before IMS carries out business the user, he earlier the service call conversation control function in IMS (hereinafter to be referred as S-CSCF) register, this registration is exactly the public user identity (hereinafter to be referred as PUI) of informing S-CSCF user and the binding relationship of the IP address of the present present position of user.Certainly, in the process of registration, the user can also tell network his some characteristics, ability of support or the like, and particular content can be referring to the standard TS 23.228 of 3GPP.Proxy Call Session Control Function among Fig. 1 (hereinafter to be referred as P-CSCF) is a proxy gateway that is used for inserting IMS, it is a gateway of the current place of user network normally, and the address of this gateway is to carry out finding to be informed by network by P-CSCF when IP inserts the user.Concrete steps can be referring to TS23.228.P-CSCF is by resolving user's the home network domain name that PUI comprised, find a query call conversation control function (hereinafter to be referred as I-CSCF), know S-CSCF under the user alternately by I-CSCF and home network registered user server (hereinafter to be referred as HSS).After I-CSCF finds user's S-CSCF, just will give S-CSCF from the forwards that P-CSCF receives, handle by S-CSCF.If S-CSCF does not also preserve user's service attribute, just require these information to HSS.S-CSCF continues to handle the message of receiving from the user.
That the message in the IMS system between UE and the P-CSCF is used is Session initiation Protocol (hereinafter to be referred as SIP).Sip message in the IMS system is followed invitation INVITE, the message trigger request principle and the response principles such as registration REGISTER, option OPTIONS of definition among the RFC 3261.The route particular importance of message in the IMS system has a field that is called request unified resource sign (Request-URI) in the head of each sip message.Initiator's S-CSCF finds called S-CSCF by this field.In the IMS system, this Request-URI field identifies with user's PUI usually.This PUI can be the SIP URI that represents with the form of email, also can be the TEL URI that represents in the telephone number mode.If that usefulness is TEL URI, after the S-CSCF of caller received this sign, it will pass through ENUM DNS (with reference to the RFC 2916 of IETF) mode and change, and converts the SIPURI of standard to so.When the S-CSCF of caller sends message for called S-CSCF then, just use SIP URI to come identifying user.
According to noted earlier, each user can inform its S-CSCF when registering, the mapping relations of its PUI and IP address.In the IMS system, same user has one or more terminal equipments, i.e. UE.These a plurality of terminal equipments are being bound with IP address that can same PUI is different with each terminal when network is registered.
When called S-CSCF prepares to send sip message to certain user with PUI sign, because the message of SIP is to be encapsulated in the IP bag, S-CSCF will distinguish this message and send for which terminal equipment so.If a plurality of terminals all use a PUI to carry out user ID, S-CSCF will send same sip message will for these a plurality of terminal equipments so.Certainly the request unified resource sign usefulness in the sip message is exactly the IP address of each endpoint registration.
On the basis of IMS, 3GPP is formulating the circuit domain call of combination and the standard of IMS session (hereinafter to be referred as CSI), referring to Fig. 8.Two clients are arranged in a subscriber equipment, and one is the calling at circuit domain (hereinafter to be referred as the CS territory), and another one is the session at the IMS territory.When carrying out simultaneously between two same UE that the CS territory is called out and the session of IMS territory the time, what present to the user in the application layer of subscriber equipment is exactly same composite service.So just need to carry out between CS territory and the IMS territory that some are mutual, operation etc.The CS core refers to and carries out the general designation that related network entity is called out in the CS territory among Fig. 8, in general comprises portable terminal interaction center (hereinafter to be referred as MSC), VLR Visitor Location Register (hereinafter to be referred as VLR) etc.The IMS core refers to the general designation of carrying out the related network entity of IMS territory session, in general comprises all entities among Fig. 1.
Before two UE carried out CSI service, two UE must know in advance that the user supports the ability of CSI.The user supports the ability of CSI to transmit by OPTIONS message.What Fig. 2 described is the ability of transmitting terminal between two users by option OPTIONS message, and the parameter that comprises in this message has the MS-ISDN of user A, SIP URI, and whether the media bearer type supports CSI or the like.Concrete parameter can be referring to 3GPP TS 23.279.Issue in the 200 OK message of UE A at UE B then, comprise the MS-ISDN of user B, SIP URI, whether the media bearer type supports CSI or the like.UE A has just known the terminal capability of UE B like this, and UE B has also known the terminal capability of UE A simultaneously.The terminal capability of opposite end is kept in the user terminal, and the timer monitoring is arranged.If timer expiry, the process of so new terminal capability exchange will be restarted, and the terminal capability of the opposite end of storing in the internal memory will be covered by new terminal capability.
What Fig. 3 explained is the problem that prior art exists.
When a user's same PUI and a plurality of terminal equipment are bound, this user's S-CSCF send same message promptly 303 and 304 will for these a plurality of terminal equipments.Carry out in CSI in the terminal capability exchange, option OPTIONS message will be issued a plurality of terminals.In general, when the callee receives option OPTIONS message, can return the message of 200OK to the initiator.When called S-CSCF receives first 200OK 305, just this forwards is given the S-CSCF of caller, and then route is returned calling subscriber equipment.
User for a certain side, when he wants to initiate CSI service, increase an IMS session on the basis that just he can use same terminal to call out in the CS territory that he is concerned about, and the merging business of being indifferent to the opposite end is to occur on the terminal, still on two terminals.Therefore this terminal that just requires to carry out session will be preserved the ability to all terminals of end subscriber.But prior art does not realize.
Summary of the invention
In order to address the above problem, the purpose of this invention is to provide a kind of method of supporting that the circuit domain call that merges and the Internet t IP multimedia subsystem, IMS are called out, can realize that two terminals of calling out preserve the ability to all terminals of end subscriber.
For achieving the above object, a kind of method of supporting the circuit domain call that merges and internet multimedia subsystem dialogue may further comprise the steps:
A) setting up the CS territory between user A and the user B calls out;
B) this terminal of user A obtains the ability and the IP address of all terminals of user B;
C) this terminal of user B obtains the ability and the IP address of all terminals of user A;
D) initiate a side of CSI service, carry called IP address in invitation message, called service call conversation control function (S-CSCF) only sends to terminal with the IP matching addresses with invitation message.
By the present invention, realize that the both sides that carry out calling out in the CS territory obtain the ability to all terminal capabilities of end subscriber and IP address, thereby can carry out CSI service effectively, strengthen user experience.
Description of drawings
Fig. 1 is the IMS architectural block diagram;
Fig. 2 is that UE utilizes OPTIONS to come the schematic diagram of exchange termination ability;
Fig. 3 is the schematic diagram of prior art;
Fig. 4 is the embodiment one of exchange termination ability;
Fig. 5 is the embodiment two of exchange termination ability;
Fig. 6 is the embodiment of initiation session;
Fig. 7 is the schematic diagram that invention constitutes;
Fig. 8 is the CSI structural framing.
Embodiment
Fig. 7 is that invention of the present invention constitutes.
Between two users, set up the CS territory call out after 701, the ability and the IP address 702 of all terminals of the terminal acquisition user B of user A, the terminal of user B also obtains the ability and the IP address 703 of all terminals of user A.704 when user A or user B will add the IMS session, will comprise the IP address of terminal called in the invitation message of sending.The S-CSCF of called end will only send to invitation message the terminal equipment of the address of called registration for this IP address.
Fig. 4 is one embodiment of the present of invention.
Before user A and user B initiating capacity exchange request, the calling of between UE A1 and UE B1, having set up a CS territory.User A knows the MS-ISDN number of the UE B1 terminal correspondence of user B.
Initiate the process of terminal capability exchange as the initiator's of capabilities exchange terminal UE A1, it sends 401 transmission TRANSFER message to S-CSCF A, this message comprises the TEL URI with the MS-ISDN number formation of UE B1, or the SIP URI of user B, preserved the corresponding relation between the SIP URI of this TEL-URI and user B among and if only if the UE A1.If that comprise in 401 message is TEL URI, S-CSCF A sends to message S-CSCF B then with the SIP URI that the TEL URI in this message replaces to user B.How S-CSCF A knows the SIP URI of user B and how to find the S-CSCFB of user B not comprise within the scope in the present invention, see also prior art.In the present embodiment, suppose that user B has two terminal UE B1 and UE B2, and these two terminals were registered to S-CSCFB with same SIP URI all.Therefore S-CSCF B sends to UE B1 and UE B2 with message transfer.After UE B1 and UE B2 are included in themselves terminal capability in the 200OK message, this message is sent to S-CSCFB.S-CSCF B is responsible for these two responses are transmitted to UE A1.So just make UE A1 preserve the terminal capability of UE B1 and UE B2.The contact IP address that can also comprise UE B1 and UE B2 in 405 and 408 message transfer, UE A1 can preserve these two IP addresses and corresponding SIP URI like this.When user A wants to add IMS session with user B by UE A1, can specify specific contact IP address in the invitation message that UE A1 sends, called like this S-CSCF just can only send to invitation message the user terminal with this IP address registration.
411 to 420 is exactly an anti-process of 401 to 410, and the initiator of capabilities exchange is the terminal equipment UE B1 of user B in this process.After 417 and 420 200OK received, UE B1 just preserved terminal capability and its corresponding IP address of terminal equipment UE A1 and the UE A2 of user A.If user B wants to initiate CSI service by its terminal UE B1, in the invitation message of sending, can specify specific contact IP address so, called like this S-CSCF just can only send to invitation message the user terminal with this IP address registration.
What Fig. 5 provided is one embodiment of the present of invention.
UE A and the calling of having set up the CS territory between the terminal B1 of user B.When UE A will be when the terminal of user B be initiated the terminal capability exchange request, UE A sends inquiry QUERY message 501 to its S-CSCFA, comprises Request-URI that the telephone number with the terminal B1 of user B constitutes or the public user identity PUI of user B in this message.S-CSCF A is converted into Request-URI the SIP URI of email form.S-CSCF A sends inquiry QUERY message 502 to S-CSCF B, comprises the SIP URI of conversion etc. in this message.The log-on message of 503S-CSCF B inquiring user equipment is known corresponding two the IP addresses of this SIP URI, is respectively terminal B1 and terminal B2.S-CSCF B returns response message (3xx or 200OK) 504 to S-CSCF A then, and this message comprises the IP address of B1 and the IP address of B2 respectively.S-CSCF A returns to UE A505 with this message.UE A has known the IP address of all terminals of user B, so send subsequently 506 and 507 in all comprise the IP address of B1 and B2 and the information such as SIP URI of user B.After receiving this message, UE B1 and UE B2 are included in its terminal capability in the 200OK message, after UE A receives 508 and 509, just preserve the terminal capability of UE B1 and UE B2, in invitation message subsequently, UE A comprises the IP address in this message, thereby make S-CSCF B know which terminal equipment place is invitation message be routed to.
What Fig. 6 provided is an alternative embodiment of the invention.
By the method for Fig. 4 and Fig. 5, UE A has obtained the terminal equipment B1 of user B and the terminal capability of B2.Next UE A will carry out CSI service, increases an IMS session, and selection UE B2 is the opposite end of setting up the IMS session.UE A sends 601 invitation message to its S-CSCF A, comprises the SIP URI of UE B in this message, perhaps TEL URI, information such as the IP address of UE B2.S-CSCF A converts TEL URI to SIP URI, gives S-CSCF B602 with forwards.S-CSCF B finds to comprise in this message the IP address of UE B2, so just this message is only sent to UE B2603.After UE B2 receives this invitation message, just receive this IMS and call out, send 200OK to UE A, this message is received by UE A at last through 605 and 606 forwarding.
Claims (9)
1. method of supporting the circuit domain call that merges and internet multimedia subsystem dialogue may further comprise the steps:
Set up circuit domain call between user A and the user B;
First terminal of user A obtains the ability and the IP address of all terminals of user B;
First terminal of user B obtains the ability and the IP address of all terminals of user A;
User A or user B carry called IP address in invitation message, send described invitation message to called service call conversation control function;
Described called service call conversation control function will described message send to this invitation message in the terminal called of the IP matching addresses that comprises it is characterized in that ability and IP address that first terminal of described user A obtains all terminals of user B comprise step:
1) first terminal of user A sends message transfer to service call conversation control function A;
2) service call conversation control function A sends message transfer to service call conversation control function B;
3) service call conversation control function B sends message transfer to all terminals of user B with the terminal that SIP URI identifies;
4) terminal of user B sends 200OK message to service call conversation control function B, and described 200OK message comprises the ability and the IP address of user B terminal;
5) all the 200OK forwards that will receive of service call conversation control function B are given service call conversation control function A;
6) first terminal of user A is preserved terminal capability and the IP address of the user B that receives.
2. method according to claim 1 is characterized in that the message transfer of step 1) comprises SIP URI or TEL URI.
3. method according to claim 1 is characterized in that step 2) message transfer comprise SIP URI.
4. method according to claim 1 is characterized in that the message transfer of step 3) comprises SIP URI.
5. method of supporting the circuit domain call that merges and internet multimedia subsystem dialogue may further comprise the steps:
Set up circuit domain call between user A and the user B;
First terminal of user A obtains the ability and the IP address of all terminals of user B;
First terminal of user B obtains the ability and the IP address of all terminals of user A;
User A or user B carry called IP address in invitation message, send described invitation message to called service call conversation control function;
Described called service call conversation control function will described invitation message send to this invitation message in the terminal called of the IP matching addresses that comprises;
The ability and the IP address that it is characterized in that all terminals of first terminal acquisition user B of described user A comprise step:
A) terminal of user A sends apply for information to service call conversation control function A;
B) service call conversation control function A sends apply for information to service call conversation control function B;
C) service call conversation control function B returns response message to service call conversation control function A, and described response message comprises the IP address with all terminals of user B of SIP URI registration;
D) service call conversation control function A returns response message to UE A;
E) user A delivery option message is given the terminal of user B, and described option message comprises the IP address of the terminal of user B;
F) terminal of user B is returned the ability that 200 OK comprise user B terminal to the terminal of user A.
6. method according to claim 5 is characterized in that the apply for information of described step a) comprises SIP URI or TEL URI.
7. method according to claim 5 is characterized in that the apply for information of described step b) comprises SIP URI.
8. method according to claim 5, the response message that it is characterized in that described step d) comprise the IP address of terminal of all user B of SIP URI registration.
9. method according to claim 5 is characterized in that the option message of described step e) also comprises SIP URI or TEL URI.
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| CN2005100795086A CN1885859B (en) | 2005-06-22 | 2005-06-22 | Method for holding combined circuit domain calling and Internet multimedia subsystem conversation |
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| CN2005100795086A CN1885859B (en) | 2005-06-22 | 2005-06-22 | Method for holding combined circuit domain calling and Internet multimedia subsystem conversation |
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| CN1885859B true CN1885859B (en) | 2010-12-01 |
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| CN101115059A (en) * | 2007-01-19 | 2008-01-30 | 华为技术有限公司 | Method, equipment and system for transmitting terminal information in multimedia subsystem |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004071048A1 (en) * | 2003-02-03 | 2004-08-19 | Koninklijke Kpn N.V. | Message data transmission in mobile communication systems taking into account capabilities of sending and receiving devices |
| CN1842084A (en) * | 2005-03-28 | 2006-10-04 | 华为技术有限公司 | Method for realizing terminal ability interaction and route control when IMS and CS service concurrence |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004071048A1 (en) * | 2003-02-03 | 2004-08-19 | Koninklijke Kpn N.V. | Message data transmission in mobile communication systems taking into account capabilities of sending and receiving devices |
| CN1842084A (en) * | 2005-03-28 | 2006-10-04 | 华为技术有限公司 | Method for realizing terminal ability interaction and route control when IMS and CS service concurrence |
Non-Patent Citations (2)
| Title |
|---|
| J. Rosenberg.Obtaining and Using Globally Routable User Agent (UA)URIs(GRUU) in the Session Initiation Protocol (SIP).IETF STANDARD-WORKING-DRAFTdraft-ietf-sip-gruu-02.2004,draft-ietf-sip-gruu-02全文. * |
| Report on alternative architectures for combining CS Bearerswith IMS.3GPP TR 23.899V1.0.0.2004,draft-ietf-sip-gruu-02全文. * |
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