CN101222421A - Subscriber identification conversion device, IMS and registration, start calling and end calling method - Google Patents

Abstract

The embodiment of the invention discloses a user identifier conversion device, an IMS and a registration, initial call and final call method. The user identifier transfer device comprises an examination module and a conversion module, wherein, the examination module is used for examining whether the received information comprises a user identifier in a form of SIP URI sent by the session of a telephone user identifier, if yes, the conversion module is called; the conversion module is used for converting the user identifier in the form of SIP URI into the user identifier in the form of TEL URI. The user identifier conversion device of the embodiment of the invention and the IMS as well as the registration, initial call and final call method in the IMS of the user identifier conversion device of the invention ensure that the user identifier in both the forms of SIP URI and TEL URI can be normally used in the IMS.

Description

The method that subscriber identification conversion device, IMS and registration, beginning exhale and exhale eventually

Technical field

The embodiment of the invention relates to a kind of communications field, relates in particular to a kind of subscriber identification conversion device, IMS (IP Multimedia Subsystem, IP Multimedia System) and registration, begins to exhale and whole method of exhaling.

Background technology

IMS is determined substantially as fixing and mobile core network of future generation.Occurring access technology and business at present provides variation, carrying IPization, and core network unified development trend and network evolution process to IMS, the user can obtain better business experience in the IMS network.

See also Fig. 1, in the IMS network, mainly comprise CSCF (Call Session Control Function, CSCF), HSS (Home Subscriber Server, user's subscribed services device), SLF (Subscription Location Function, Subscription Locator Function), AS (Application Server, application server) entity such as, wherein CSCF comprises P-CSCF (Proxy CSCF, proxy CSCF), I-CSCF (Interrogating CSCF, consult CSCF) and S-CSCF (Serving CSCF, serving CSCF).

User ID signatory in the IMS network can be SIP (Session Initiation Protocol, Session initiation Protocol) URI (Universal Resource Identifier, the unified resource sign) form also can be the form of TEL (Telephone, phone) URI.

The basic format of SIP URI is:

SIP-URI＝″sip:″[userinfo]hostport?uri-parameters[headers]

General type is: sip:user:password@host:port; Uri-parameters? headers

Below be the user ID of SIP URI form:

sip:alice@atlanta.com

sip:alice:secretword@atlanta.com；transport＝tcp

sip:+1-212-555-1212:1234@gateway.com；user＝phone

The basic format of TEL URI is:

telephone-URI ＝telephone-scheme?″：″

telephone-subscriber

telephone-scheme ＝″tel″

telephone-subscriber?＝global-phone-number/local-phone-number

General type is: tel:global-phone-number

Below be the user ID of TEL URI form:

tel:+358-555-1234567

tel:0w003585551234567；phone-context＝+3585551234

tel:+1234567890；phone-context＝+1234；vnd.company.option＝foo

SIP URI and TEL URI can transform mutually.Need be when TEL URI transfers SIP URI to the telephone-subscriber integral body of TELURI userinfo part as SIP URI.Domain name part is filled in the name in the territory at the entity place of changing in the IMS network.Because TEL URI is insensitive to capital and small letter, the userinfo of SIP URI part is responsive to capital and small letter, thus all characters among the telephone-subscriber of TEL URI can be transferred to during conversion small letter and with parameter put into the userinfo of SIP URI after according to certain sequence arrangement.

Domain name such as the entity place of changing is foo.com, then following TEL URI

tel:+358-555-1234567；postd＝pp22

tel:+358-555-1234567；POSTD＝PP22

Just all transferred following SIP URI to

sip:+358-555-1234567；postd＝pp22@foo.com；user＝phone

The SIP URI that has user=phone at present just can transfer TEL URI to, and the telephone-subscriber that during conversion the information of userinfo among the SIP URI is put into TEL URI gets final product.As following SIP URI:

sip:+358-555-1234567；postd＝pp22@foo.com；user＝phone

Can transfer following TEL URI to:

tel:+358-555-1234567；postd＝pp22

In the IMS network, HSS is as the core of user data, and entities such as I-CSCF, S-CSCF, AS can have frequent the obtaining and operation such as modification of user data of carrying out alternately with HSS.Such as UE (UserEquipment, subscriber equipment) in network, register, initiate the beginning exhale, exhale eventually etc. all can cause under the scene I-CSCF, S-CSCF, AS and HSS alternately.In the IMS network, the network support form is that the user ID of SIP URI or TEL URI is used in network.The application that is used for the user ID of session purpose mainly comprises the correct route of this user ID session when the registration of network or this user ID are calling and called.And in the prior art, user's registration, initiating the beginning exhales, scene such as exhale telephone subscriber's sign to occur eventually, for example during the user ID of the SIPURI form of user=phone parameter, existing HSS and IMS network are still handled it as a SIP URI, owing to comprised a telephone number among the userinfo of the SIP URI of this form, and for same user, the hostport part is in the different message that different entities sends, may all can be different, therefore, directly it is handled the situation that can't register or use of may occurring as SIP URI in the IMS network if according to the processing mode of present IMS network.

Summary of the invention

Embodiment of the invention technical problem to be solved is to provide a kind of subscriber identification conversion device, IP Multimedia System and registration, beginning to exhale and whole method of exhaling, no matter the user uses the SIP URI or the user ID of TEL URI form normally to use in the IMS network.

The embodiment of the invention another technical problem to be solved is to provide a kind of method of the user data operation requests message that the HSS processing is received in IP Multimedia System, no matter the user uses the SIP URI or the user ID of TELURI form normally to use in the IMS network.

For solving the problems of the technologies described above, the embodiment of the invention provides a kind of subscriber identification conversion device, and it comprises checks module and modular converter,

Described inspection module is used for checking whether its received message comprises the user ID of the Session initiation Protocol unified resource sign SIP URI form of telephone subscriber's sign, if comprise, then calls modular converter;

Described modular converter is used for the user ID of this SIP URI form is converted to the user ID of phone uniform resource locator TEL URI form.

The embodiment of the invention also provides a kind of IP Multimedia System, and it comprises CSCF, HSS, SLF and AS, and described IP Multimedia System also comprises subscriber identification conversion device, and described subscriber identification conversion device comprises checks module and modular converter,

Described inspection module is used for checking whether its received message comprises the user ID of the SIPURI form of telephone subscriber's sign, if comprise, then calls modular converter;

Described modular converter is used for the user ID of this SIP URI form is converted to the user ID of TEL URI form.

The embodiment of the invention also provide a kind of in IP Multimedia System user's process registration, it may further comprise the steps:

A, in the process that user equipment (UE) is registered, before the information of HSS inquiring user place S-CSCF, subscriber identification conversion device is checked the user ID of the SIP URI form that whether comprises telephone subscriber's sign in the message, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B, HSS finish user's registration and authentication process then again according to the information of the user ID inquiring user place S-CSCF after the conversion.

The embodiment of the invention also provide a kind of in IP Multimedia System the user initiate the method that begins to exhale, it may further comprise the steps:

In the process that the user initiates to begin to exhale, after P-CSCF receives conversation request message, when the user ID that comprises in the message is carried out matching check, the subscriber identification conversion device that independently is present in the network or is arranged in P-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form, and then mates again according to the user ID after the conversion.

The embodiment of the invention also provide a kind of in IP Multimedia System the user initiate the method that begins to exhale, it may further comprise the steps:

In the process that the user initiates to begin to exhale, after S-CSCF receives conversation request message, the user ID that comprises in according to message as S-CSCF is carried out business when triggering, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form, and then mates the business that the relative users sign is triggered in the back again according to the user ID after the conversion.

The embodiment of the invention also provide a kind of in IP Multimedia System the user initiate the method that begins to exhale, it may further comprise the steps:

A1, in the process that the user initiates to begin to exhale, before the information of HSS inquiring user place S-CSCF, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B1, HSS be again according to the information of user ID inquiring user place S-CSCF after the conversion, finishes the user then and initiate the process that begins to exhale.

The embodiment of the invention also provides a kind of method that the user exhaled as end in IP Multimedia System, and it may further comprise the steps:

After A5, HSS receive the location information request message that the I-CSCF of the home domain at user place sends, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B5, HSS finish the user as the process of exhaling eventually then again according to the information of the user ID inquiring user place S-CSCF after the conversion.

For solving above-mentioned another technical problem, the embodiment of the invention provides a kind of method of the user data operation requests message that the HSS processing is received in IP Multimedia System, and it may further comprise the steps:

A6, HSS carry out corresponding data query and matching operation according to the user ID that comprises in the user data operation requests message; If operation failure, the subscriber identification conversion device that then independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B6, the HSS user ID after according to conversion is carried out once corresponding data query and matching operation again, if success then the data found and operating result are being carried entity to the operation of request user data in corresponding response message; If failure in corresponding response message the indication operation failure give the entity of request user data operation.

Because comprising, the subscriber identification conversion device of the embodiment of the invention checks module and modular converter, when in checking the module check message received, comprising the user ID of SIP URI form of telephone subscriber's sign to it, modular converter is converted to the user ID of this SIP URI form the user ID of TEL URI form, so subscriber identification conversion device of the embodiment of the invention, adopt the IMS of subscriber identification conversion device of the present invention and user's registration in IMS, initiate to begin to exhale and whole method of exhaling, no matter can make the user use the SIP URI or the user ID of TELURI form in the IMS network, normally to use.

Description of drawings

Fig. 1 is an IMS functional frame composition.

Fig. 2 is the functional block diagram of embodiment of the invention subscriber identification conversion device.

Fig. 3 is embodiment of the invention UE register flow path schematic diagram in IMS.

Fig. 4 is that user that the embodiment of the invention is registered in IMS initiates the schematic flow sheet that begins to exhale.

Fig. 5 is that embodiment of the invention AS in IMS replaces the user to initiate the schematic flow sheet that begins to exhale.

Fig. 6 is the embodiment of the invention schematic flow sheet that the user exhaled as end in IMS.

Embodiment

See also Fig. 2, the embodiment of the invention provides a kind of subscriber identification conversion device, comprise and check module and modular converter, check that module is used for checking whether its received message comprises telephone subscriber's sign, for example described telephone subscriber's sign is the user ID of the SIP URI form of user=phone parameter, or what check that module can determine to comprise in the message according to strategy is the user ID of other SIP URI forms of identifying of telephone subscriber, if comprise, then calls modular converter; Modular converter is used for the user ID of this SIP URI form is converted to the user ID of TEL URI form, can be to remove any visual separator and parameter, the teIephone-subscriber that during conversion the information of userinfo among the SIPURI is put into TEL URI gets final product.The subscriber identification conversion device of the embodiment of the invention can be the entity that independently is present in the network, or is arranged in following arbitrary entity, part entity or all entities: P-CSCF, I-CSCF, S-CSCF, HSS, SLF and AS.

The IMS of the embodiment of the invention comprises CSCF, HSS, SLF and AS, and wherein CSCF comprises P-CSCF, I-CSCF and S-CSCF, and the IMS of the embodiment of the invention can be to the increased functionality of HSS, I-CSCF, P-CSCF, S-CSCF, SLF and AS entity.In HSS, I-CSCF, P-CSCF, S-CSCF, SLF and AS entity, can increase subscriber identification conversion device.

By in these entities, increasing subscriber identification conversion device, make these entities have that specific header field has the portable phone user ID in the sip message of receiving, for example during the user ID of the SIP URI form of user=phone parameter, it can be changed into the ability of the user ID of removing the normalized TELURI form after any visual separator and the parameter when needed.By increasing this function on these entities, UE or other entity selection adopt the user ID of which kind of form to register in network or will have better flexibility during initiation session, and can save certain user ID resource.Register for the user, initiating the beginning exhales, echo eventually with scene etc. and telephone subscriber's sign occurs, for example during the user ID of the SIP URI form of user=phone parameter, owing to comprised a telephone number among the userinfo of the SIP URI of this form, and for same user, the hostport part is in the different message that different entities sends, may all can be different, therefore the embodiment of the invention is handled after earlier the user ID of SIP URI form being converted to the user ID of TEL URI form again, thereby the situation that can't register or use in network can not occur.For HSS, can after handling failure, reexamine the telephone subscriber's sign that has comprised SIP URI form in the message whether, if comprise, convert the user ID of SIP URI form the user ID of TEL URI form to after, carry out data query one time according to the user ID after the conversion again.Said herein other entity includes but not limited to AGCF (Access Gateway ControlFunction, AGCF) or MGCF (Media Gateway Control Funcation, MGCF), AGCF can replace the user to initiate registration, and MGCF can handle the entity that carries out forwarding to after the signaling conversion IMS from the calling of circuit domain.

Below only to initiate with UE that registration and UE and AS replace user's initiation session, exhale eventually be that example is described, but comprise that other entity replaces UE at the IMS network registry and go into to exhale the session processing scene of IMS network from other network.In addition, being designated the user=phone parameter with the telephone subscriber below is that example is described.

After at first needing to register, could in network, use UE signatory miscellaneous service.See also Fig. 3, the UE register flow path is as follows in the IMS network of the specific embodiment of the invention:

1, UE initiates REGISTER (register requirement) message to network;

UE fills in IMPU (the IP Multimedia Public User Identity of the SIP URI form that will register in the TO of REGISTER message header field, IP multimedia public subscriber identification), can be the SIP URI that has comprised telephone number of band user=phone parameter, also can be the SIP URI that is not with this parameter.Filling in the contact address that will register in the CONTACT header field, can be the IP address or the FQDN (fully qualified domain name, qualified domain name fully) of SIP URI form;

2, P-CSCF issues the REGISTER request I-CSCF of UE ownership;

3, after I-CSCF receives REGISTER message, the IMPU of the SIP URI form in the TO header field of message is carried at UAR (User-Authorization-Request, user-authorization-request) among the Public UserIdentity, username in the Authorization header field is carried among the Private User Identity of UAR, distributed to HSS request this user S-CSCF name or the capability set of the S-CSCF that service needs is provided for this user;

Possibility is: I-CSCF is before HSS initiates UAR, the subscriber identification conversion device that independently is present in the network or is arranged in I-CSCF checks earlier whether the user ID of the TO header field of REGISTER message comprises the user ID of the SIP URI form of user=phone parameter, if comprise, then being converted into the user ID of normalized TEL URI form, can be the user ID of the TEL URI form after any visual separator of removal and the parameter.Again it is carried at afterwards among the Public User Identity of UAR, distributed to HSS request this user S-CSCF name or the capability set of the S-CSCF that service needs is provided for this user;

4, after HSS receives UAR message, the user ID that whether comprises the SIP URI form of user=phone parameter among the Public User Identity of inspection message, if comprise, then be converted into the user ID of normalized TEL URI form, after can being the form of the TEL URI after any visual separator of removal and the parameter, carry out the inquiry of internal database again.Return name or the capability set information that this user has distributed S-CSCF by UAA (User-Authorization-Answer, user-authorization-answer) to I-CSCF afterwards; If I-CSCF has done the step of user ID conversion, then in this step, can omit the step of user ID conversion.

5, I-CSCF selects the S-CSCF of a service according to the capability set of S-CSCF for the user, and REGISTER message is issued this S-CSCF;

6, after S-CSCF receives REGISTER message, the IMPU of the SIP URI form in the TO header field of REGISTER message is carried at MAR (Multimedia-Auth-Request, the multimedia authentication request) among the PublicUser Identity, username in the Authorization header field in the REGISTER message is carried among the Private User Identity of MAR, to HSS request user's authorization data;

Possibility is: S-CSCF is before HSS initiates MAR, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks earlier whether the user ID of the TO header field of REGISTER message comprises the user ID of the SIP URI form of user=phone parameter, if comprise, then being converted into the user ID of normalized TEL URI form, can be the TELURI after any visual separator of removal and the parameter.Again it is carried at afterwards among the Public User Identity of MAR;

7, HSS is according to IMPI (the IP Multimedia Private User Identity of user among the MAR, IP multimedia private user identity) obtains returning to S-CSCF by MAA (Multimedia-Auth-Answer, multimedia authentication is replied) after the corresponding authentication data; After HSS receives MAR message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks earlier whether the Public User Identity of message comprises the user ID of the SIP URI form of user=phone parameter, if comprise, then be converted into the user ID of normalized TEL URI form, after can being the form of the TEL URI after any visual separator of removal and the parameter, carry out inquiry and marking matched and other processing of internal database again;

8, S-CSCF initiates 401 authentication request by I-CSCF to UE, wherein comprise a random challenge (RAND) and a network authentication token (AUTN), simultaneously encryption key and Integrity Key are handed down to P-CSCF and are used for setting up between P-CSCF and the UE Security Association follow-up Signalling exchange is carried out integrity protection;

9, I-CSCF issues P-CSCF with 401 authentication request message;

10, P-CSCF issues UE with 401 authentication request message;

11, UE verifies the authentication token of network according to key in the ISIM card and authentication arithmetic, and produces an authentication response (RES).P-CSCF and UE set up Security Association according to CK, IK, and UE initiates REGISTER message by this Security Association and RES is carried to network;

12, P-CSCF issues I-CSCF with the REGISTER message that UE sends;

13, I-CSCF issues S-CSCF with the REGISTER message that UE sends;

14, S-CSCF verifies RES, determines whether to conform to the expected result XRES that obtains from HSS.

15, authentication is carried among the SAR (Server-Asignment-Request, server-assignment request) IMPU of the SIP URI form in the TO header field of REGISTER message to HSS request user contracting data by back S-CSCF;

Possibility is: S-CSCF is before HSS initiates SAR, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks earlier whether the user ID of the TO header field of REGISTER message comprises the user ID of the SIP URI form of user=phone parameter, if comprise, then being converted into the user ID of normalized TEL URI form, can be the user ID of the TELURI form after any visual separator of removal and the parameter.Again it is carried at afterwards among the Public User Identity of SAR;

16, after HSS receives SAR message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks earlier whether the Public User Identity of message comprises the user ID of the SIP URI form of user=phone parameter, if comprise, then be converted into the user ID of normalized TEL URI form, after can being the user ID of the TEL URI form after any visual separator of removal and the parameter, carry out the inquiry and the relevant treatment of internal database again, return the requesting users subscription data by SAA (Server-Asignment-Answer, server-assignment is replied) to S-CSCF afterwards;

17, S-CSCF gets up the storage of subscriber data among the SAA, and returns 200OK to I-CSCF;

Possibility is: if the user ID of registration is the user ID that has comprised the SIP URI form of user=phone parameter, S-CSCF is when storaging user data, can be that user ID is stored with the SIPURI of band user=phone parameter, can be that user ID is stored to change the normalized TEL URI in back also;

18, I-CSCF returns 200OK to P-CSCF;

19, P-CSCF returns 200OK to UE, and so far the registration of UE and authentication process finish.

Possibility is: if the user ID of registration is the user ID that has comprised the SIP URI form of user=phone parameter, P-CSCF is when the storage user related data, can be that user ID is stored with the SIP URI of band user=phone parameter, can be that user ID is stored to change the normalized TEL URI in back also.

See also Fig. 4, it is as follows that the user of embodiment of the invention registration initiates the basic procedure that begins to exhale:

1, UE initiates INVITE, can be chosen in and insert the Public User Identity that can identify own identity in the P-Preferred-Identity header field;

2, after P-CSCF receives INVITE, can check whether the P-Preferred-Identity header field is arranged in the message, and check its value whether with P-CSCF in certain registered Public User Identity coupling of writing down, if have and mate, P-CSCF just with this Public User Identity as the session initiator and fill among the P-Asserted-Identity; If do not match or there is not a P-Preferred-Identity header field, P-CSCF just selects a default Public User Identity as the session initiator and fill among the P-Asserted-Identity for the user;

When P-CSCF carries out matching check to the user ID that comprises among the P-Preferred-Identity, the subscriber identification conversion device that independently is present in the network or is arranged in P-CSCF checks earlier whether P-Preferred-Identity comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form, can be the TEL URI after any visual separator of removal and the parameter, mate again;

3, after S-CSCF receives INVITE, carry out business according to the calling subscriber identification in the P-Asserted-Identity header field in the message and trigger, carry out the route of subsequent session afterwards according to the Request-URI in the INVITE.

The user ID that comprises in according to P-Asserted-Identity as S-CSCF is carried out business when triggering, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks earlier whether P-Asserted-Identity comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form, can be the TEL URI after any visual separator of removal and the parameter, mate the business that the relative users sign is triggered in the back again.

See also Fig. 5, embodiment of the invention AS replaces the user to initiate to begin to exhale, and before AS replaced the user to initiate to begin to exhale, AS may pass through third-party registration or obtain the name of the S-CSCF at user place by Sh interface from HSS.When HSS obtained the name of S-CSCF at user place, user ID can be a SIP URI or a TEL URI to AS by Sh interface.When user ID is a SIP URI who has a user=phone parameter, HSS will have the ability to be converted into the form of normalized TEL URI, after can being the form of the TEL URI after any visual separator of removal and the parameter, carry out the inquiry and the relevant treatment of internal database again.Alternatively, AS can be converted to the user ID that has the SIP URI form of user=phone parameter and be carried in the message Sh interface query manipulation of being correlated with to HSS after the user ID of normalized TELURI form again.

Embodiment of the invention AS replaces the user to initiate to begin to exhale basic procedure as follows:

If 1 AS can obtain the name of the S-CSCF at user place before replacing the user to initiate to begin to exhale, execution in step 1a then, be that AS directly will talk about the S-CSCF that is routed to the user place, if can't obtain the name of the S-CSCF at user place, then need execution in step 1b1, will talk about the I-CSCF of the home domain that is routed to the user place;

1b2, I-CSCF initiate LIR (Location-Info-Request to HSS, location information request) message, calling subscriber identification in the P-Asserted-Identity header field in the message is filled among the LIR, inquire about the positional information at this present place of user, just the information of user place S-CSCF;

Possibility is: when the user ID that comprises in the P-Asserted-Identity header field of the INVITE request message that I-CSCF receives is a SIP URI who has a user=phone parameter, I-CSCF can be converted into the form of normalized TEL URI, can be after removing the form of the TEL URI after any visual separator and the parameter, it is carried at send to HSS among the LIR;

1b3, HSS are according to the user ID among the LIR, and the information of this user's correspondence of inquiry returns to I-CSCF by LIA with the name of user place S-CSCF or the capability set of S-CSCF in database; After HSS receives LIR message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks earlier whether the Public User Identity of message comprises the SIP URI of user=phone parameter, if comprise, then be converted into the form of normalized TEL URI, after can being the form of the TEL URI after any visual separator of removal and the parameter, carry out the inquiry and the relevant treatment of internal database again; If I-CSCF has done the step of user ID conversion, then in this step, can omit the step of user ID conversion;

1b4, I-CSCF are routed to the S-CSCF that HSS returns with INVITE, or the S-CSCF that selects for the user of the capability set of the S-CSCF that returns according to HSS;

If 2 S-CSCF are this user's information not, S-CSCF is carried among the SAR user ID in the P-Asserted-Identity header field in the message to HSS request user contracting data;

Possibility is: when S-CSCF carries out matching check to the user ID that comprises among the P-Asserted-Identity, if that the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF is checked through that P-Asserted-Identity comprises is a SIP URI who has the user=phone parameter, can transfers this SIP URI to normalized TEL URI according to the needs of the form of the user ID of its storage inside and mate again.

Possibility is: if that comprise among the P-Asserted-Identity is a SIP URI who has the user=phone parameter, S-CSCF can be converted into the form of normalized TEL URI, can be to be carried among the SAR after removing the form of the TEL URI after any visual separator and the parameter;

3, HSS returns the requesting users subscription data by SAA to S-CSCF; After HSS receives SAR message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks earlier whether the Public UserIdentity of message comprises the SIP URI of user=phone parameter, if comprise, then be converted into the form of normalized TEL URI, after can being the form of the TEL URI after any visual separator of removal and the parameter, carry out the inquiry and the relevant treatment of internal database again;

4, S-CSCF proceeds the subsequent voice calls processing.

See also Fig. 6, embodiment of the invention user is as follows as the basic procedure of exhaling eventually:

1, the I-CSCF of the home domain at user place receives INVITE;

2, I-CSCF initiates LIR message to HSS, and the calling subscriber identification in the P-Asserted-Identity header field in the message is filled among the LIR, inquires about the positional information at this present place of user, just the information of user place S-CSCF;

3, HSS is according to the user ID among the LIR, and the information of this user's correspondence of inquiry returns to I-CSCF by LIA with the name of user place S-CSCF or the capability set of S-CSCF in database; After HSS receives LIR message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks earlier whether the Public User Identity of message comprises the SIP URI of user=phone parameter, if comprise, then be converted into the form of normalized TEL URI, after can being the form of the TEL URI after any visual separator of removal and the parameter, carry out the inquiry and the relevant treatment of internal database again, afterwards the result is sent to I-CSCF by LIA; If I-CSCF has done the step of user ID conversion, then in this step, can omit the step of user ID conversion;

4, I-CSCF is routed to the S-CSCF that HSS returns with INVITE, or the S-CSCF that selects for the user of the capability set of the S-CSCF that returns according to HSS;

If 5 S-CSCF are this user's information not, S-CSCF is carried among the SAR user ID in the P-Asserted-Identity header field in the message to HSS request user contracting data;

Possibility is: when S-CSCF carries out matching check to the user ID that comprises among the P-Asserted-Identity, if that the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF is checked through that P-Asserted-Identity comprises is a SIP URI who has the user=phone parameter, can transfers this SIP URI to normalized TEL URI according to the needs of the form of the user ID of its storage inside and mate again.

Possibility is: if that comprise among the P-Asserted-Identity is a SIP URI who has the user=phone parameter, S-CSCF can be converted into the form of normalized TEL URI, can be to be carried among the SAR after removing the form of the TEL URI after any visual separator and the parameter;

6, HSS returns the requesting users subscription data by SAA to S-CSCF; After HSS receives SAR message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks earlier whether the Public UserIdentity of message comprises the SIP URI of user=phone parameter, if comprise, then be converted into the form of normalized TEL URI, after can being the form of the TEL URI after any visual separator of removal and the parameter, carry out the inquiry and the relevant treatment of internal database again;

7, S-CSCF proceeds the subsequent voice calls processing.

Embodiment of the invention HSS in IP Multimedia System handles the method from the user data operation requests message of entity (as I-CSCF, S-CSCF or AS) receive, it may further comprise the steps:

A6, HSS carry out corresponding data query and matching operation according to the user ID that comprises in the user data operation requests message of receiving; If operation failure, the subscriber identification conversion device that then independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B6, HSS carry out once corresponding data query and matching operation again according to the user ID after changing, if the success according to the operation successful handling process carry out, data and the operating result found are carried the entity of operating to the request user data in corresponding response message, as I-CSCF, S-CSCF or AS; If failure then carry out according to the failure handling process, the indication operation failure is given the entity of request user data operation in corresponding response message, as I-CSCF, S-CSCF or AS.

TEL URI described in the embodiment of the invention is equal to TEL URL (Universal ResourceLocator, uniform resource locator).

The scheme that provides by the embodiment of the invention, solved prior art IMS network and can't guarantee with parameter to be that the form of USER=PHONE is user ID normal problem of using in network of SIP URI, made user and the network in the selection of IP multimedia pUblic identity, have better flexibility.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (29)

1. a subscriber identification conversion device is characterized in that, it comprises checks module and modular converter,

Described inspection module is used for checking whether its received message comprises the user ID of the Session initiation Protocol unified resource sign SIP URI form of telephone subscriber's sign, if comprise, then calls modular converter;

Described modular converter is used for the user ID of this SIP URI form is converted to the user ID of phone uniform resource locator TEL URI form.

2. subscriber identification conversion device as claimed in claim 1, it is characterized in that: described subscriber identification conversion device is the entity that independently is present in the network, or described subscriber identification conversion device is arranged in following arbitrary entity, part entity or all entities: P-CSCF, I-CSCF, S-CSCF, user's subscribed services device HSS, Subscription Locator Function SLF and application server AS.

3. IP Multimedia System, it comprises CSCF, HSS, SLF and AS, it is characterized in that, and described IP Multimedia System also comprises subscriber identification conversion device, and described subscriber identification conversion device comprises checks module and modular converter,

Described inspection module is used for checking whether its received message comprises the user ID of the SIPURI form of telephone subscriber's sign, if comprise, then calls modular converter;

Described modular converter is used for the user ID of this SIP URI form is converted to the user ID of TEL URI form.

4. IP Multimedia System as claimed in claim 3, it is characterized in that: described subscriber identification conversion device is the entity that independently is present in the network, or described subscriber identification conversion device is arranged in following arbitrary entity, part entity or all entities: P-CSCF, I-CSCF, S-CSCF, HSS, SLF and AS.

5. user's process registration in IP Multimedia System is characterized in that may further comprise the steps:

A, in the process that user equipment (UE) is registered, before the information of HSS inquiring user place S-CSCF, subscriber identification conversion device is checked the user ID of the SIP URI form that whether comprises telephone subscriber's sign in the message, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B, HSS finish user's registration and authentication process then again according to the information of the user ID inquiring user place S-CSCF after the conversion.

6. as claimed in claim 5 in IP Multimedia System user's process registration, it is characterized in that: described steps A specifically may further comprise the steps:

After A11, I-CSCF receive register requirement from subscriber equipment, initiate user-authorization-request to HSS, request distributed to this user S-CSCF name or the capability set of the S-CSCF that service needs is provided for this user;

A12, independently be present in the network or the subscriber identification conversion device that is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form.

7. as claimed in claim 5 in IP Multimedia System user's process registration, it is characterized in that: described steps A specifically may further comprise the steps:

After A21, I-CSCF receive register requirement from UE, before HSS initiates user-authorization-request, the subscriber identification conversion device that independently is present in the network or is arranged in I-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form; Initiate user-authorization-request to HSS then, request distributed to this user S-CSCF name or the capability set of the S-CSCF that service needs is provided for this user.

8. as claimed in claim 5 in IP Multimedia System user's process registration, it is characterized in that: described step B may further comprise the steps:

According to the information of the user ID inquiring user place S-CSCF after the conversion, HSS returns name or the capability set information that this user has distributed S-CSCF to I-CSCF then again for B1, HSS;

B2, I-CSCF select the S-CSCF of a service according to the capability set of S-CSCF for the user, and login request message is issued this S-CSCF;

After B3, S-CSCF received login request message, to HSS request user's authorization data, HSS obtained returning to S-CSCF after the corresponding authentication data according to user's IP multimedia private user identity, and S-CSCF and UE authenticate.

9. as claimed in claim 8 in IP Multimedia System user's process registration, it is characterized in that: in described step B3, after S-CSCF receives login request message, before HSS request user's authorization data, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form.

10. as claimed in claim 8 in IP Multimedia System user's process registration, it is characterized in that: in described step B3, before HSS obtains the corresponding authentication data according to user's IP multimedia private user identity, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form.

11. as claimed in claim 8 in IP Multimedia System user's process registration, it is characterized in that: described step B3 is further comprising the steps of:

B34, authentication are asked user contracting data by back S-CSCF to HSS;

B35, HSS return the requesting users subscription data to S-CSCF;

B36, S-CSCF store user contracting data.

12. as claimed in claim 11 in IP Multimedia System user's process registration, it is characterized in that: in described step B34, authentication is passed through back S-CSCF before HSS request user contracting data, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form.

13. as claimed in claim 11 in IP Multimedia System user's process registration, it is characterized in that: in described step B35, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIPURI form is converted to the user ID of TEL URI form.

14. as claimed in claim 11 in IP Multimedia System user's process registration, it is characterized in that: in described step B36, if the user ID of registration is the SIP URI form that comprises telephone subscriber sign, then store with the user ID of SIP URI form, maybe the user ID of this SIP URI form is converted to the user ID of TEL URI form, and then stores with the user ID of TEL URI form.

15. as claimed in claim 11 in IP Multimedia System user's process registration, it is characterized in that: described step B36 comprises that also S-CSCF returns the step of response message to UE, return in the response message process to UE at S-CSCF, if the user ID of registration is the SIP URI form that comprises telephone subscriber sign, P-CSCF is when storaging user data, user ID with SIP URI form is stored, maybe the user ID of this SIP URI form is converted to the user ID of TEL URI form, and then stores with the user ID of TELURI form.

16. the method that the user initiates to begin to exhale in IP Multimedia System is characterized in that may further comprise the steps:

In the process that the user initiates to begin to exhale, after P-CSCF receives conversation request message, when the user ID that comprises in the message is carried out matching check, the subscriber identification conversion device that independently is present in the network or is arranged in P-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form, and then mates again according to the user ID after the conversion.

17. the method that the user initiates to begin to exhale in IP Multimedia System is characterized in that may further comprise the steps:

In the process that the user initiates to begin to exhale, after S-CSCF receives conversation request message, the user ID that comprises in according to message as S-CSCF is carried out business when triggering, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form, and then mates the business that the relative users sign is triggered in the back again according to the user ID after the conversion.

18. the method that the user initiates to begin to exhale in IP Multimedia System is characterized in that may further comprise the steps:

A1, in the process that the user initiates to begin to exhale, before the information of HSS inquiring user place S-CSCF, subscriber identification conversion device is checked the user ID of the SIP URI form that whether comprises telephone subscriber's sign in the message, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B1, HSS be again according to the information of user ID inquiring user place S-CSCF after the conversion, finishes the user then and initiate the process that begins to exhale.

19. as claimed in claim 18 in IP Multimedia System the user initiate the method that begins to exhale, it is characterized in that described steps A 1 may further comprise the steps:

A31, AS replace the user to initiate to begin to exhale, if AS can't obtain the S-CSCF at user place, then the session request message are routed to the I-CSCF of the home domain at user place;

After A32, I-CSCF receive described conversation request message, the subscriber identification conversion device that independently is present in the network or is arranged in I-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form, sends to HSS again.

20. as claimed in claim 18 in IP Multimedia System the user initiate the method that begins to exhale, it is characterized in that described steps A 1 may further comprise the steps:

A41, AS replace the user to initiate to begin to exhale, if AS can't obtain the S-CSCF at user place, then the session request message are routed to the I-CSCF of the home domain at user place;

After A42, I-CSCF receive described conversation request message, send location information request message to HSS;

After A43, HSS receive described location information request message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form.

21. as claimed in claim 18 in IP Multimedia System the user initiate the method that begins to exhale, it is characterized in that described step B1 may further comprise the steps:

According to the information of the user ID inquiring user place S-CSCF after the conversion, HSS returns to I-CSCF with the name of user place S-CSCF or the capability set of S-CSCF again for B11, HSS;

B12, I-CSCF are routed to the S-CSCF that HSS returns with described conversation request message, or the S-CSCF that selects for the user of the capability set of the S-CSCF that returns according to HSS;

If B13 S-CSCF is this user's information not, then S-CSCF sends to HSS with the user ID in the session request message, to HSS request user contracting data;

B14, HSS return the requesting users subscription data to S-CSCF; After HSS receives request user contracting data message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B15, S-CSCF proceed subsequent voice calls and handle.

22. as claim 19 or 20 described in IP Multimedia System the user initiate the method that begins to exhale, it is further comprising the steps of to it is characterized in that described AS replaces before the step that the user initiates to begin to exhale: AS is by third-party registration or obtain the name of the S-CSCF at user place from HSS by Sh interface; The user ID that AS will comprise the SIP URI form of telephone subscriber sign is converted to and is carried in the message Sh interface query manipulation of being correlated with to HSS after the user ID of TEL URI form again; If AS can obtain the name of the S-CSCF at user place before replacing the user to initiate to begin to exhale, then AS directly will talk about the S-CSCF that is routed to the user place.

23. as claimed in claim 21 in IP Multimedia System the user initiate the method that begins to exhale, it is characterized in that described step B13 is further comprising the steps of: after S-CSCF receives described conversation request message, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form.

24. the method that the user exhaled as end in IP Multimedia System is characterized in that may further comprise the steps:

After A5, HSS receive the location information request message that the I-CSCF of the home domain at user place sends, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B5, HSS finish the user as the process of exhaling eventually then again according to the information of the user ID inquiring user place S-CSCF after the conversion.

25. as claimed in claim 24 in IP Multimedia System the user it is characterized in that before the described steps A 5 further comprising the steps of as the method for exhaling eventually:

The home domain at A51, user place receive conversation request message;

A52, I-CSCF initiate location information request message to HSS.

26. the method that the user exhaled as end in IP Multimedia System as claimed in claim 25 is characterized in that described step B5 may further comprise the steps:

According to the information of the user ID inquiring user place S-CSCF after the conversion, HSS returns to I-CSCF with the name of user place S-CSCF or the capability set of S-CSCF again for B51, HSS;

B52, I-CSCF are routed to the S-CSCF that HSS returns with described conversation request message, or the S-CSCF that selects for the user of the capability set of the S-CSCF that returns according to HSS;

If B53 S-CSCF is this user's information not, then S-CSCF sends to HSS with the user ID in the session request message, to HSS request user contracting data;

B54, HSS return the requesting users subscription data to S-CSCF; After HSS receives request user contracting data message, the subscriber identification conversion device that independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B55, S-CSCF proceed subsequent voice calls and handle.

27. the method that the user exhaled as end in IP Multimedia System as claimed in claim 26, it is characterized in that described step B53 is further comprising the steps of: after S-CSCF receives described conversation request message, the subscriber identification conversion device that independently is present in the network or is arranged in S-CSCF checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form.

28. the method for the user data operation requests message that the HSS processing is received in IP Multimedia System is characterized in that may further comprise the steps:

A6, HSS carry out corresponding data query and matching operation according to the user ID that comprises in the user data operation requests message of receiving; If operation failure, the subscriber identification conversion device that then independently is present in the network or is arranged in HSS checks whether message comprises the user ID of the SIP URI form of telephone subscriber's sign, if comprise, then the user ID of this SIP URI form is converted to the user ID of TEL URI form;

B6, the HSS user ID after according to conversion is carried out once corresponding data query and matching operation again, if success then the data found and operating result are being carried entity to the operation of request user data in corresponding response message; If failure in corresponding response message the indication operation failure give the entity of request user data operation.

29. the method for the user data operation requests message that the HSS processing is received in IP Multimedia System as claimed in claim 28, it is characterized in that: described entity is I-CSCF, S-CSCF or AS.

Images