Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Method embodiment one
The scene that a kind of session establishing method, the method for the embodiment of the invention are suitable for is: user A is in the associating session, and promptly at least 2 subscriber equipmenies of this user A be example explanation with 2 in the present embodiment just in session, are assumed to be UE-1 and UE-2; And this user A has the session of a user equipment (UE)-2 to be: with the subscriber equipment Remote UE-1 of user B in the CS territory, carry out the transmission of real-time media stream Media-B, then working as another user C uses subscriber equipment Remote UE-2 to the user A request of making a call, when carrying out the transmission of real-time media stream, can initiate the session of the embodiment of the invention and set up process.Signaling process figure comprises as shown in Figure 2:
Step 101, subscriber equipment Remote UE-2 comprise the identifying information of called subscriber A to the user A request message that makes a call in call request message;
Be appreciated that the indication information that in call request message, can also comprise the type (as voice transfer, transfer of data etc.) of setting up session, set up the indication information etc. of the mode of session.
The identifying information of called subscriber A can be user's a common identity sign, in the present embodiment with network protocol multi-media public identifier (IP Multimedia Public Identity, IMPU) be the example explanation, a plurality of subscriber equipmenies of such user can be shared a common identity sign.The identifying information of called subscriber A can also be the unique identification user, and be associated with the sign of concrete subscriber equipment, in the present embodiment with universal routable user proxy unified resource identification (Globally Routable User Agent URI, GRUU) be the example explanation, can learn IMPU by GRUU, the SCC server can draw this sign by IMPU or GRUU and specifically belong to which user, and then can inquire about the subscriber equipment which identical signatory (Subscription) this user has.
Step 102, call request message can arrive the SCC server through the CSCF of called subscriber A place network, and the SCC server determines according to the identifying information in the call request message whether called subscriber A exists the associating session, if, execution in step 103; If not, then carry out called access domain selection, in the subscriber equipment of called subscriber A, select to accept the subscriber equipment of this calling and the Access Network that this equipment is accepted this calling;
When determining whether user A exists the associating session, the SCC server draws user's common identity sign IMPU earlier according to the identifying information that is comprised in unified resource identifier request (Request-URI) message header in the call request message, if that draw is user ID GRUU, then need to derive IMPU by GRUU.
The SCC server is judged the current associating session that whether has according to IMPU, specifically is to inquire about corresponding associating session information and judge that if having, there is the associating session in then definite called subscriber by IMPU; Or,
The SCC server is confirmed the quantity of the subscriber equipment of this IMPU correspondence, if when having only 1, then is defined as user A and does not exist and be in the associating session; If when having 2 at least, whether whether have associating session, concrete if further judging that the subscriber equipment of this IMPU correspondence is current, can be to inquire about in these at least 2 subscriber equipmenies to have subscriber equipment to have the associating session, if determine that then the called subscriber exists in the associating session; Or,
The SCC server determines that earlier the user of this IMPU correspondence or user contract, judge the current associating session that whether has according to this user or user are signatory again, specifically be to inquire about this user or the signatory corresponding associating session information of user and judge that if having, there is the associating session in then definite called subscriber; , or,
The SCC server determines that the user of this IMPU correspondence is signatory, determines that the more signatory middle indication of user has same signatory subscriber equipment quantity, if having only 1, then is defined as user A and does not have the associating session; Whether if having 2 at least, further judging in these at least 2 subscriber equipmenies has subscriber equipment to have the associating session, if determine that then there is the associating session in the called subscriber.
Be appreciated that the method that other can also be arranged determines whether called subscriber A exists the associating session, and above-mentioned these concrete methods are not construed as limiting the invention.
Step 103, SCC server send to control subscriber equipment in this associating session with call request message, carry out the foundation of session;
Be appreciated that, the SCC server needs the identifying information of elder generation according to the called subscriber A in the call request message, the identification information of acquisition subscriber equipment that is possessed of control power of user A in this associating session, with contact (contact) address of this subscriber equipment in the Access Network at current control (promptly uniting session control signaling) place, the i.e. employed contact of the current control of this subscriber equipment address.Suppose that this subscriber equipment is a user equipment (UE)-1, then the Access Network by the current control of UE-1 place sends to UE-1 with this call request message.
Step 104, control subscriber equipment are that UE-1 receives this call request message, accept this calling, the process of setting up of the guild's words of going forward side by side; Perhaps this calling is transferred to other subscriber equipment of called subscriber A, concrete transfer process is existing content, does not here give unnecessary details.
Initiate can to select control and Media Stream are shifted together in the process of diverting call at control user equipment (UE)-1, also can a transferring media stream, and do not shift control.
Be appreciated that, in another specific embodiment, if control user equipment (UE)-1 carries out the transmission of real-time media stream Media-A with other subscriber equipment in the CS territory, then in above-mentioned steps 104, UE-1 is when receiving call request message, find from a session has been arranged in the CS territory, need earlier to the maintenance request of SCC server initiation real-time media stream Media-A, process SCC server is after the subscriber equipment of transmitting real-time media stream Media-A sends the maintenance request, control user equipment (UE)-1 is accepted this calling again, carry out the process that session is set up, maybe this calling is transferred to other subscriber equipment of called subscriber A.
The called party processing method that the invention described above embodiment adopts is: the SCC server receives call request message, if determine that there has been the associating session in the called subscriber, then call request message is sent to the control subscriber equipment in this associating session.Work as the user like this and have an associating session, when other user uses subscriber equipment that this user is initiated new calling, the SCC server can be selected the control subscriber equipment in this associating session, so can be not at one's side the user because of the subscriber equipment of this calling of access that occurs selecting, or the subscriber equipment of this calling of access of selecting has carried out session in the associating session, and be not possessed of control power, the situations such as session before just can not keeping have improved user experience.
Method embodiment two
A kind of session establishing method, the method for the embodiment of the invention are specific implementations of embodiment, and it is identical with embodiment one to be suitable for scene, repeats no more, and signaling process figure comprises as shown in Figure 3:
Step 201, subscriber equipment Remote UE-2 comprise the identifying information of called subscriber A to the user A request message that makes a call in call request message;
Step 202, call request message can arrive the SCC server through the CSCF of called subscriber A place network, and the SCC server determines according to the identifying information in the call request message whether called subscriber A exists the associating session, if, execution in step 203; If not, then carry out subsequent operation, with reference to the step 3-6 of figure 1 according to prior art;
The SCC server determines that whether called subscriber A exists the method for associating session identical with embodiment one, repeats no more.
Step 203, SCC server select to insert the optimal user equipment of this calling in the subscriber equipment of called subscriber A, and select the Access Network of this calling of access for this subscriber equipment, suppose to be chosen as user equipment (UE)-2 and insert from the CS territory;
Step 204, SCC server add the identification information of user equipment (UE)-2 or the contact address of this user equipment (UE)-2 Access Network in the call request message to, and the call request message after adding sent to control subscriber equipment in this associating session, carry out the foundation of session;
The SCC server can increase a new message header as UE sign (the Inter UE Transfer Prefer UE that shift to recommend between UE in call request message, IUT-Prefer-UE), or accept contact address (Accept-Contact) etc., the contact address of adding identification information or this user equipment (UE)-2 Access Network of user equipment (UE)-2 in the new message header that increases also can be added in existing message header or the message body.
Step 205, the control subscriber equipment is that UE-1 receives this call request message, new message header IUT-Prefer-UE that increases in the parsing call request message or Accept-Contact etc., confirm to comprise in the call request message contact address of the identification information or the UE-2 Access Network of user equipment (UE)-2, then according to the contact address of identification information or the UE-2 Access Network of UE-2, the transfer that makes a call, user equipment (UE)-2 is transferred in this calling, then need to carry out earlier the maintenance of real-time media stream Media-B, send the maintenance request to the SCC server, and then execution in step 207;
Step 206, SCC server send the maintenance request through mobile switch to the user equipment (UE)-2 of transmitting real-time media stream Media-B, and keep request to the subscriber equipment RemoteUE-1 of another transmitting real-time media stream Media-B transmission;
User equipment (UE)-2 and subscriber equipment Remote UE-1 receive when keeping request, keep this real-time media stream Media-B.
Step 207, control user equipment (UE)-1 send redirect message to the SCC server according to the contact address of the identification information or the UE-2 Access Network of the user equipment (UE) in the call request-2, and user equipment (UE)-2 is transferred in this calling, carry out the foundation of session;
The redirect message that is appreciated that transmission can be SIP 302 message, can comprise the only indication of transferring media stream in the message header of SIP 302 message.
Initiate in the process of diverting call at control user equipment (UE)-1, can select control and Media Stream are shifted together, also can a transferring media stream, and do not shift control, with a transferring media stream, and keep control and in UE-1, be the example explanation in the present embodiment.
Step 208, SCC server receive redirect message, according to the content of redirect message, send call request message to user equipment (UE)-2;
After step 209, mobile switch are received call request message, send session to user equipment (UE)-2 and set up request;
Step 210, user equipment (UE)-2 receive session and set up request, finish the process that session is set up.
In the present embodiment, the SCC server receives call request message, judge whether the called subscriber exists the associating session, and selection inserts the subscriber equipment and the Access Network of this calling, the identification information of the subscriber equipment selected or contact address added to send to the control subscriber equipment in the call request message, the control subscriber equipment receives call request message like this, and the user can transfer the call to the subscriber equipment that server is selected by the control appliance user as required.So more meet the network demand that inserts this calling, and alleviated the work of control subscriber equipment.
Method embodiment three
A kind of session establishing method, the method for the embodiment of the invention are specific implementations of embodiment, and it is identical with embodiment one to be suitable for scene, repeats no more, and flow chart comprises as shown in Figure 4:
Step 301, subscriber equipment Remote UE-2 comprise the identifying information of called subscriber A to the user A request message that makes a call in call request message;
Step 302, call request message can arrive the SCC server through the CSCF of called subscriber A place network, the SCC server is according to the identifying information in the call request message, in the subscriber equipment of called subscriber A, select to insert the subscriber equipment of this calling, and select this subscriber equipment to insert the Access Network of this calling, promptly carry out the T-ADS function, inserting this calling from the CS territory with selection user equipment (UE)-2 in the present embodiment is the example explanation;
Step 303, SCC server determine further whether called subscriber A exists the associating session, if, execution in step 304; If not, execution in step 306 then;
The SCC server determines that whether called subscriber A exists the method for associating session identical with embodiment one, repeats no more.
Whether the Access Network that step 304, SCC server are judged the user equipment (UE)-2 that inserts this calling and inserted this calling can satisfy the calling requirement, if can, then execution in step 306, if can not, then execution in step 305;
Call out and require to comprise: if the subscriber equipment of this calling of access of selecting is controlled subscriber equipment, can then definite selected subscriber equipment is current connect this calling etc., for example in the present embodiment, owing to select to insert this calling from the CS territory by user equipment (UE)-2, and user equipment (UE)-the 2nd, controlled subscriber equipment, and the calling in a CS territory has been arranged on UE-2, user equipment (UE)-2 just can not keep previous calling like this, then can't connect this calling, then be judged as and satisfy the calling requirement, need execution in step 305.
Be appreciated that calling out requirement can also be other requirement, just with a concrete example explanation, be not construed as limiting the invention in the present embodiment.
Step 305, SCC server send to control subscriber equipment in the associating session with call request message, carry out the foundation of session;
Step 306, SCC server send to the subscriber equipment of this calling of access of selecting in the step 302 with call request message, carry out the foundation of session.
Be appreciated that, in a specific embodiment, the SCC server can also comprise in the call request message that sends to the control subscriber equipment: the contact address of the identification information of the user equipment (UE)-2 of this calling of access of selection or user equipment (UE)-2 Access Network, then control subscriber equipment and receiving the later method of call request message, as the later method step of step 205 among the embodiment two, do not repeat them here.
In the present embodiment, the SCC server is after receiving call request message, for this calls out subscriber equipment and the Access Network of selecting access, when judging that there is the associating session in the called subscriber, determine further whether subscriber equipment and the Access Network selected can satisfy the calling requirement, when satisfying, send call request message to the subscriber equipment of selecting, when not satisfying, send to call request message and give the control subscriber equipment.
Apparatus embodiments one
A kind of server, structural representation comprise as shown in Figure 5:
Request receiving element 10 is used for the receipt of call request message, comprises called subscriber's identifying information in the described call request message;
Judging unit 11, the identifying information that is used for the call request message that receives according to described request receiving element 10 determines whether described called subscriber exists the associating session;
The method that judging unit 11 is judged does not repeat them here as described in the method embodiment one.
Transmitting element 12 is used for having the associating session as the called subscriber that described judging unit 11 is judged, then described call request message is sent to the control subscriber equipment in the associating session, carries out the foundation of session.
In the server that the embodiment of the invention adopts, request receiving element 10 receives call request message, if judging unit 11 determines that there has been the associating session in called subscribers, 12 of transmitting elements send to control subscriber equipment in this associating session with call request message.Work as the user like this and have an associating session, when other user uses subscriber equipment that this user is initiated new calling, server can be selected the control subscriber equipment in this associating session, so can be not at one's side the user because of the subscriber equipment of this calling of access that occurs selecting, or the subscriber equipment of this calling of access of selecting has carried out session in the associating session, and be not possessed of control power, the situations such as session before just can not keeping have improved user experience.
Apparatus embodiments two
A kind of server, the server in the present embodiment is compared with apparatus embodiments one, has increased selected cell 13 and redirected unit 14, structural representation as shown in Figure 6, wherein:
Selected cell 13 is used for selecting to insert the subscriber equipment of this calling at called subscriber's subscriber equipment, and selects this subscriber equipment to insert the contact address of this calling;
First is redirected unit 14, be used for comprising: the identification information of the subscriber equipment of this calling of access that described selected cell 13 is selected when the call request message that described transmitting element 12 sends, or the contact address of the subscriber equipment of described this calling of access, receiving the redirect message that described control subscriber equipment sends according to described call request message, subscriber equipment to described this calling of access sends call request message, carries out the foundation of session.
In the present embodiment, request receiving element 10 in the server receives call request message, judge by judging unit 11 whether the called subscriber exists the associating session, and select to insert the subscriber equipment and the Access Network of these callings by selected cell 13, the identification information of the subscriber equipment selected or contact address are added at last and send to the control subscriber equipment in the call request message by transmitting element 12, the control subscriber equipment receives call request message like this, the user can transfer the call to the subscriber equipment that server is selected by the control appliance user as required.After the first redirected unit 14 receives the redirect message of diverting call, initiated to be redirected, so more meet the network demand that inserts this calling, and alleviated the work of controlling subscriber equipment to the user who selects.
Apparatus embodiments three
A kind of server, the server of present embodiment is compared with apparatus embodiments one, increased selected cell 15 and called out judging unit 16, structural representation as shown in Figure 7, wherein:
Selected cell 15 is used for selecting to insert the subscriber equipment of this calling at called subscriber's subscriber equipment, and selects to insert the Access Network of this calling;
Call out judging unit 16, whether the subscriber equipment of this calling of access that is used to judge that described selected cell 15 is selected and the Access Network that inserts this calling can satisfy the calling requirement, if not, then notify described transmitting element 12 to send;
Alternatively, server in the present embodiment can also comprise: second transmitting element 17, the Access Network that is used for the subscriber equipment of described this calling of access of judging when described calling judging unit 16 and inserts this calling satisfies calls out requirement, then described call request message is sent to the subscriber equipment of described this calling of access.
In the present embodiment, after the request receiving element 10 of server receives call request message, call out subscriber equipment and the Access Network of selecting access by selected cell 15 for this, when judging unit 11 judges that there is the associating session in the called subscriber, determine further by calling out judging unit 16 whether subscriber equipment and the Access Network selected can satisfy the calling requirement, when satisfying, send call request message to the subscriber equipment of selecting by second transmitting element 17, when not satisfying, send to call request message by transmitting element 12 and give the control subscriber equipment.
Apparatus embodiments four
A kind of subscriber equipment, structural representation comprise as shown in Figure 8:
Receiving element 40 is used for the receipt of call request message;
Confirmation unit 41 is used for confirming that described call request message that described receiving element 40 receives comprises the contact address of the identification information or the subscriber equipment that described server is selected of the subscriber equipment that server is selected;
Be redirected unit 42, be used for the identification information of the call request message that receives according to described confirmation unit 41 or the contact address of the subscriber equipment that described server is selected, send redirect message, the subscriber equipment that described server is selected is transferred in this calling, carry out the foundation of session.
System embodiment
A kind of called treatment system, structural representation comprises as shown in Figure 9: server 100 and at least two subscriber equipmenies that carry out the associating session with described server user's equipment;
Server 100, be used for the receipt of call request message, the identifying information that comprises the called subscriber in the described call request message, determine according to described identifying information whether described called subscriber exists the associating session, if described call request message is sent to control subscriber equipment 200 in this associating session;
Subscriber equipment 200 is used to receive the call request message that described server sends, and carries out the foundation of session.
Be appreciated that, in a specific embodiment, server 100 also is used for selecting at called subscriber's subscriber equipment the subscriber equipment of this calling of access, with the contact address of the subscriber equipment of described this calling of access, in the call request message that sends to control subscriber equipment 200, also comprise: the contact address of the subscriber equipment of the identification information of the subscriber equipment of described this calling of access or described this calling of access;
Then described subscriber equipment 200 also is used for the contact address according to the subscriber equipment of the identification information of the call request message of described reception or described this calling of access, send redirect message, the subscriber equipment that described access is called out is transferred in this calling, carried out the foundation of session.
The called party processing method that the embodiment of the invention adopts is: the ACC server receives call request message, if determine that there has been the associating session in the called subscriber, then call request message is sent to the control subscriber equipment in this associating session.Work as the user like this and have an associating session, when other user uses subscriber equipment that this user is initiated new calling, the SCC server can be selected the control subscriber equipment in this associating session, so can be not at one's side the user because of the subscriber equipment of this calling of access that occurs selecting, or the subscriber equipment of this calling of access of selecting has carried out session in the associating session, and be not possessed of control power, the situations such as session before just can not keeping have improved user experience.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
More than to called party processing method, system and network node that the embodiment of the invention provided, wherein network node comprises subscriber equipment and server, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.