CN101232649B - Communication system, application server and method for implementing same group answer replacing business - Google Patents
Communication system, application server and method for implementing same group answer replacing business Download PDFInfo
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- CN101232649B CN101232649B CN2008100570847A CN200810057084A CN101232649B CN 101232649 B CN101232649 B CN 101232649B CN 2008100570847 A CN2008100570847 A CN 2008100570847A CN 200810057084 A CN200810057084 A CN 200810057084A CN 101232649 B CN101232649 B CN 101232649B
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Abstract
The invention discloses a method for answering agency service in the same groups, application servers and communication systems to adding answering agency service for the same group to prior 3G network which lacks such service. In the invention, the application server call requests according to user terminals in the same application group as users, so as to gain address information to answer the agency user terminals and answering agency user terminal in dialing characteristic numbers in the same group answering agency service; according to the characteristic numbers, the system can determine the requests from the answering agency user terminals as the same group answering agency request, and then provide the address information of the answering agency user terminals to the calling user terminals; moreover, the system provides the address information of calling user terminals for answering agency user terminals, and meanwhile establishes conversation with the answering agency user terminals based on the address information control user terminals. Through the application, the invention can perform answering agency service in the same groups in 3G network, so as to add answering agency service to the same group in 3G network based on IMS.
Description
Technical field
The present invention relates to the communications field, relate in particular to the technology that realizes co-group pickup service in a kind of 3G (Third Generation) Moblie network.
Background technology
Group business is the class important service in the legacy network, the implication of this group business is: network is organized as a customer group with one group of specific user (as: user of same unit, the user of same sub-district), at this customer group, network provides characteristic service.To answer be a characteristic service in this group business generation on the same group, when the calling no response of arbitrary user terminal of a customer group, can by other user in the group on the terminal of oneself on behalf of replying.
Evolution along with mobile communications network, third generation partner program (3GPP) has proposed IP-based 3G (third generation) network architecture, this 3G network framework is with interconnection protocol IP multimedia subsystem, IMS (IPMultimedia System, IMS) be core, can provide abundant multimedia integration business such as speech, video, data.As seen, 3G network will progressively replace legacy network.
In IMS, Media layer, key-course and operation layer separate.(Call Session Control Function CSCF) constitutes key-course, and concrete business is not provided, and functions such as necessary business triggering, routing addressing, charging only are provided by call conversation control function entity.Operation layer is that (ApplicationServer AS) forms, and concrete business is provided by application server.(Session Initiation Protocol, SIP) as professional control protocol, key-course triggers the certain service logic of AS execution according to user's CAMEL-Subscription-Information, finishes specific business to adopt initial session protocol between key-course and the operation layer.Media layer is set up the Media Stream passage according to the indication of key-course and operation layer between user terminal, the medium (as voice, video etc.) of transmission particular type.
Progressively replace in the legacy network process at 3G network, for the business that guarantees the legacy network user is used continuity, 3G network at first needs to provide the existing business in the legacy network, utilize the characteristic of IP technology that these business are strengthened then on this basis, for example expand spendable medium type (expanding to multimedia service), increase new function from simple speech business.Yet in or the standard of working out announced, also there is not correlation technique to realize co-group pickup service at 3G network in present each big normal structure.
Summary of the invention
The invention provides a kind of method, application server and communication system that realizes co-group pickup service, it has remedied the blank that realizes co-group pickup service at present in 3G network.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of method that realizes co-group pickup service, and this method comprises:
Application server obtains the address information of described call subscriber terminal and the media information that described call subscriber terminal is supported according to the call request of call subscriber terminal; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer the number information that user terminal dials, address information and the generation that described generation is answered user terminal and answer the media information that user terminal is supported;
Determining call request that described generation answers user terminal according to described number information when generation is answered request on the same group, cancellation is to the calling of called user terminal; And described generation is answered the address information of user terminal, described generation answer media information that user terminal supports and offer described call subscriber terminal and carry out media information and consult, the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported offers described generation and answers user terminal and carry out media information and consult;
Application server obtains described call subscriber terminal and described generation and answers the media negotiation result of user terminal, and answers user terminal for described call subscriber terminal and described generation described media negotiation result transmission; And
Answer the media negotiation result of user terminal based on described call subscriber terminal and described generation,, control described call subscriber terminal and described generation and answer and set up conversation between the user terminal according to described address information.
The embodiment of the invention also provides a kind of application server, and this application server comprises:
The information acquisition unit is used for the call request according to call subscriber terminal, obtains the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer address information and the generation that number information that user terminal dials and described generation answer user terminal and answer the media information that user terminal is supported;
Recognition unit is used for determining that according to described number information call request that described generation answers user terminal is for generation is answered request on the same group;
Information process unit is used for determining call request that described generation answers user terminal when generation is answered request on the same group when described recognition unit that cancellation is to the calling of called user terminal; And described generation is answered the address information of user terminal, described generation answer media information that user terminal supports and offer described call subscriber terminal and carry out media information and consult, the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported offers described generation and answers user terminal and carry out media information and consult;
Control unit is used to obtain described call subscriber terminal and described generation to answer the media negotiation result of user terminal, and answers user terminal for described call subscriber terminal and described generation described media negotiation result transmission; And answer the media negotiation result of user terminal based on described call subscriber terminal and described generation, according to described address information, control described call subscriber terminal and described generation and answer and set up conversation between the user terminal.
The embodiment of the invention also provides a kind of communication system, and this communication system comprises:
First call conversation control function entity, second call conversation control function entity and application server;
Described first call conversation control function entity is used for the call request of call subscriber terminal is transmitted to described application server, carries the address information of described call subscriber terminal in the described call request;
Described second call conversation control function entity, be used for and answer the call request that user terminal sends with the generation that called user terminal is in same application group, be transmitted to application server, described call request is carried described generation and is answered the address information that number information that user terminal dials and described generation answer user terminal;
Described application server is used for the call request according to call subscriber terminal, obtains the address information of described call subscriber terminal; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer the address information that number information that user terminal dials and described generation answer user terminal; Determine that according to described number information call request that described generation answers user terminal is for generation is answered request on the same group, the address information of then being answered user terminal described generation offers described call subscriber terminal, the address information of described call subscriber terminal is offered described generation answer user terminal; And, control described call subscriber terminal and described generation and answer foundation conversation between the user terminal according to described address information.
The technical scheme that is provided by the invention described above embodiment as can be seen, application server is according to being in the user terminal call request of same application group with user terminal, obtains address information and generation that generation answers user terminal to answer the characteristic number that user terminal is dialed co-group pickup service; Determine that according to described characteristic number request that described generation answers user terminal answers request for generation on the same group, then will offer call subscriber terminal for the address information of answering user terminal; The address information of call subscriber terminal is offered for answering user terminal, and based on above-mentioned address information control user terminal and for answering foundation conversation between the user terminal, thereby can realize co-group pickup service at 3G network, remedy the blank that in 3G network, realizes co-group pickup service at present.
Description of drawings
Fig. 1 is the flow chart of first embodiment of the invention;
Fig. 2 answers flow chart for the generation on the same group of a kind of basic application of first embodiment of the invention;
Fig. 3 is the flow chart of second embodiment of the invention;
Fig. 4 answers flow chart for a kind of generation on the same group of using resource reservation mechanism to use of second embodiment of the invention;
Fig. 5 is the structural representation of third embodiment of the invention;
Fig. 6 is the structure principle chart of fifth embodiment of the invention.
Embodiment
In the embodiment of the invention,, same application server (AS) is set in the network provides group business (containing co-group pickup service) for these users for all users of same application group.
Below in conjunction with accompanying drawing the embodiment of the invention is elaborated.
First embodiment of the invention provides a kind of method that realizes co-group pickup service, and the concrete implementing procedure of this method comprises the steps: as shown in Figure 1
The above-mentioned characteristic number that is used for identifying co-group pickup service is distributed by operator, and is notified to all user terminals that belong to same application group and the application server that application is provided for described application group by operator.
When the user terminal in being in same application group is known other user terminal ring in this group, can utilize this characteristic number, answer for other user terminal in this group carries out generation to the application server request, as by dialing this characteristic number, send call request, carry the number information that user terminal C dialed, the address information of user terminal C in this call request.
In the step 104, behind the number information that application server acquisition user terminal C is dialed, at first with described number information with mate for number information that group business distributed, find that described number information can match when being used for identifying the characteristic number of co-group pickup service, the call request of then determining user terminal C is for generation is answered request on the same group; Otherwise the call request of determining described user terminal C is non-generation on the same group to answer request.
Application server is determined by the following method for answering target: application server monitors the call signaling of all user terminals of same application group; In the generation on the same group that certain user terminal sends in receiving group, answered when asking, and judges that having which user terminal to be in ring in the same group does not answer state; If having only a user terminal to be in ring does not answer state, determine that then this user terminal is generation to answer target; If having a plurality of user terminals to be in ring does not simultaneously answer state, then select one of them user terminal to answer target for generation according to certain strategy; Described selection strategy can be a user terminal of selecting ring at first, perhaps the user terminal of ring the latest; By the supervision of aforementioned call signaling to all user terminals, can determine that generation answers the call subscriber terminal of target.
The call request that application server is determined described user terminal C can also be cancelled the calling to called user terminal B when generation is answered request on the same group, makes not re-ringing of called user terminal B.
In the foregoing description, the media information of before user terminal C and user terminal A, not knowing the other side and being supported, then also need to carry out the negotiations process of media information between user terminal A and the user terminal C, that is to say, also can carry the media information of user terminal C in the call request that above-mentioned user terminal C sends.Correspondingly, the media information that application server need be supported user terminal C offers the negotiation that call subscriber terminal A carries out media information, and the media information that user terminal A is supported offers the negotiation that user terminal C carries out media information.Application server obtains the media information negotiation result of user terminal C and call subscriber terminal A, described media information negotiation result is offered user terminal C and call subscriber terminal A, and based on the address information of this media information negotiation result, call subscriber terminal A and the address information of user terminal C, set up conversation between control call subscriber terminal A and the user terminal C, be about to the calling of call subscriber terminal A, be routed to user terminal C called user terminal B.
Be a kind of application that realizes co-group pickup service of first embodiment of the invention below, the user terminal that relates in this application comprises user terminal A, user terminal B and user terminal C.Wherein user terminal B and user terminal C belong to same application group, and user terminal A can belong to this application group, also can not belong to this application group.Same application server (AS) is set in the network provides group business (containing co-group pickup service) for these user terminals, this application server (AS) also can be called as crowd AS.Preserving operator among the group AS is the particular number that group business distributes, and is the characteristic number that co-group pickup service distributes comprising operator.All users that belong to same application group know this characteristic number.The specific implementation flow process of this application for simplicity, has been omitted the call conversation control function entity that is positioned at key-course as shown in Figure 2 among Fig. 2, realization flow specifically comprises the steps:
Step 201, user terminal A are initiated call request (as inviting (the INVITE)) message to user terminal B as caller, and this request at first arrives the group AS of user terminal B.The source address of carrying in this call request is the address of user terminal A; Destination address is the address of user terminal B.Simultaneously can carry the media information that user terminal A is supported.
Step 202, group AS obtains the address of user terminal A, the media information that user terminal A is supported according to this call request, and this call request is transmitted to user terminal B.
Step 203, user terminal B ring, the prompting called subscriber has incoming call.
Step 204, user terminal B returns ring-back response (180 Ringing) message to group AS.
Step 205, group AS is transmitted to user terminal A with the ring-back response message.
Step 211, another terminal (user terminal C) is found user terminal B ring but dont answer in the group, decision is for answering this incoming call, by dialing operator is the characteristic number that co-group pickup service distributed, initiate a call request (INVITE) message to group AS, destination address is that operator is the characteristic number that co-group pickup service distributed, and source address is the address information of user terminal C, can carry the media information of user terminal C simultaneously.
Step 212, group AS receives this call request, judges user terminal C request for answering according to destination address, and it is user terminal B that generation is answered target, and its calling party is a user terminal A.
Afterwards, group AS preserves the address information of the user terminal C that carries in this call request and the media information that user terminal C is supported get off, and starts the operation flow that generation on the same group answers subsequently, comprises the calling of cancellation to called user terminal B; The address information of user terminal C is offered user terminal A, and the request user terminal A is called out renewal; The address information of user terminal A is offered user terminal C, make user terminal C is arrived in the call proceeding of user terminal A.Specific as follows:
Step 213, group AS sends request (CANCEL) message that cancellation is called out, the call request that cancellation step 202 is sent out to user terminal B.
Step 214, not re-ringing of user terminal B, and return calling to group AS and cancel success response (200OK) message.
Step 215, user terminal B returns call failure response (487 Request Terminated) message to group AS, and it is the response at the call request in the step 202, and the indication failure cause is that call request is terminated.
Step 216, group AS returns call failure to user terminal B and confirms (ACK) message.
To the process between the step 216, group AS finishes the call flow of cancellation to user B through step 213.
Step 221, group AS sends to user terminal A and calls out update request (UPDATE) message, in this update inquiry information, carry the address information of user terminal C and the media information of user terminal C, require user terminal A to change the transmitting-receiving destination address (former transmitting-receiving destination address is user terminal B, need change user terminal C into now) of its Media Stream (transmitting speech or content of multimedia).
Step 222, user terminal A is updated to the address information of user terminal C with destination address by the address information of user terminal B, and returns and upgrade success response (200 OK) message.
Step 231, group AS sends access success response (200 OK) message to user terminal C, and it is the response of call request in the step 211, carries the address information and the media information of user terminal A in this access success response message.
Step 232, user terminal C returns access success to group AS and confirms (ACK) message.
Step 241, group AS sends access success response (200 OK) message to user terminal A, and it is the response of call request in the step 201.
Step 242, user terminal A are returned access success to group AS and are confirmed (ACK) message.
Step 251 is set up conversation between group AS control user terminal A and the user terminal C, finishes co-group pickup service.
Second embodiment of the invention provides the method for another kind of realization co-group pickup service, this method has realized co-group pickup service in conjunction with resource reservation mechanism, so-called resource reservation is meant that subscriber terminal side (comprising IP gateway that user terminal connects, air traffic channel etc.) obtains the required enough resources (comprise enough medium upstream and downstream bandwidth, satisfy the propagation delay time assurance of service needed etc.) of Media Stream transmission.Set up in the process in the IMS session, request such as INVITE, UPDATE and response message portability Session Description Protocol (SessionDescription Protocol thereof, SDP) parameter, this parameter contains the obligate information (comprise the media resource that the reservation of finishing media resource and success are reserved, perhaps comprise the reservation of not finishing media resource as yet) of media information that message sender supports, local media stream transmitting-receiving address (comprising network layer IP address and transport layer address (being port)), local media resource etc.Set up in the process in session, exchange the SDP parameter, can carry out the negotiation of media information and determine, and know the medium transmitting-receiving address and the medium reservation situation of opposite end by both sides.Because negotiation and the reservation of media resource need the regular hour (second grade), if reserving as yet at media resource under the situation of (the Media Stream passage is not got through as yet), the callee do not speak with regard to off-hook, and its speech can't be sent to the calling party, and voice packets will be dropped.For avoiding this situation, second embodiment of the invention is enabled resource reservation mechanism, terminal called ability ringing called subscriber after resource reservation is finished.
The second embodiment of the invention implementing procedure comprises the steps: as shown in Figure 3
Step 302 when user terminal B ring dont answer, is in the user terminal C of same application group by dialing the characteristic number of co-group pickup service, the transmission call request with user terminal B.
The above-mentioned characteristic number that is used for identifying co-group pickup service is distributed by operator, and is notified to all user terminals that belong to same application group and the application server that application is provided for described application group by operator.
When the user terminal in being in same application group is known other user terminal ring in this group, can utilize this particular number, answer for other user terminal in this group carries out generation to the application server request, as by dialing this particular number, send call request, carry the address information of number information that user terminal C dialed, user terminal C, media information that user terminal C is supported and the obligate information of media resource in this call request.
In the step 304, application server is according to described number information, and the call request of determining user terminal C is answered request for generation on the same group and determined that generation answers the process of target, and is identical with associated description among first embodiment, is not described in detail here.
Application server is determined to receive on the same group after generation answers request, can also cancel the calling to called user terminal B, makes not re-ringing of called user terminal B.
Through the process of step 303 to step 307, application server assisting users terminal A and user terminal C have finished media information and have consulted and media resource reservation.
Step 308 based on the media information negotiation result of user terminal A and user terminal C, the media resource of success reservation and their address information, is set up conversation between control user terminal A and the user terminal C.
Provide a kind of concrete application of second embodiment of the invention below, the user terminal that relates in this application comprises user terminal A, user terminal B and user terminal C.Wherein user terminal B and user terminal C belong to same application group, and user terminal A can belong to this application group, also can not belong to this application group.Same application server (AS) is set in the network provides group business (containing co-group pickup service) for these user terminals, this application server (AS) also can be called as crowd AS.Preserving operator among the group AS is the particular number that group business distributes, and is the characteristic number that co-group pickup service distributes comprising operator.The user who belongs to same application group knows this characteristic number.The specific implementation flow process of this application for simplicity, has been omitted the call conversation control function entity that is positioned at key-course as shown in Figure 4 among Fig. 4, realization flow specifically comprises the steps:
Step 401, user terminal A are initiated to the call request of user terminal B (INVITE), have wherein carried the SDP parameter (SDP A) of user terminal A; This request at first arrives the AS of user terminal B.
This SDP parameter contains the obligate information of media information (comprising medium type) that user terminal A supports, local media stream transmitting-receiving address (comprising network layer IP address information and transport layer address (port) information), local media resource etc.
Step 402, group AS is transmitted to user terminal B with call request.
Step 403, user terminal A and user terminal B start resource reservation mechanism, through mutual (the omitting among this figure) of a series of message, have finished the resource reservation of two user terminals, and user terminal B begins ring then, and the prompting user has incoming call.
Step 404, user terminal B returns ring-back response (180 Ringing) message to group AS.
Step 405, group AS is transmitted to user terminal A with the ring-back response message.
Step 411, another terminal (user terminal C) decision is for answering this incoming call in the group, initiate a call request (INVITE) message to group AS, destination address is that operator is the particular number that co-group pickup service distributed, carried the SDP parameter (SDP C) of user terminal C simultaneously, having comprised: the reservation situation that this SDP parameter contains media information that user terminal C supports, Media Stream transmitting-receiving address (comprising network layer IP address information and transport layer address (port) information), media resource is not for finishing information such as reservation as yet.
Step 412, group AS receives this call request, judges user terminal C according to destination address and wishes for the incoming call of answering on the user terminal B.The SDP parameter of user terminal C is preserved.
Afterwards, group AS startup comprises the calling of cancellation to called user terminal B on the same group for the operation flow of answering; The SDP parameter of user terminal C is offered user terminal A, and the request user terminal A is called out renewal; The SDP parameter of user terminal A is offered user terminal C, make user terminal C is arrived in the call proceeding of user terminal A.Specific as follows:
Step 413, group AS sends request (CANCEL) message that cancellation is called out to user terminal B.
Step 414, not re-ringing of user terminal B, and return calling to group AS and cancel success response (200OK) message.
Step 415, user terminal B returns call failure response (487 Request Terminated) message to group AS, and it is the response at the call request in the step 402, and the indication failure cause is that call request is terminated.
Step 416, group AS returns call failure to user terminal C and confirms (ACK) message.
Step 421, group AS sends to user terminal A and calls out update request (UPDATE) message, wherein carried the SDP parameter (SDP C) of user terminal C, require user terminal A to change the transmitting-receiving destination address (former transmitting-receiving destination address is user terminal B, need change user terminal C into now) of its Media Stream (transmitting speech or content of multimedia).
Step 422, user terminal A are returned and are upgraded success response (200 OK) message, have wherein carried the SDP parameter (SDP A) of user terminal A.
Step 431, group AS sends call progress response (183 Progress) message to user terminal C, has wherein carried the SDP parameter that user terminal A provides (SDP A).
Step 432, user terminal C returns to group AS and calls out provisional response (PRACK message).
Step 433, group AS returns the success response (200 OK message) of calling out provisional response to user terminal C, acknowledges receipt of to call out provisional response message.
Step 441, user terminal C has completed successfully resource reservation.
Step 442, user terminal C sends to group AS and calls out update request (UPDATE message), the SDP parameter of wherein carrying (SDP C '), media resource reservation situation wherein is for finishing resource reservation.
Step 443, group AS sends to user terminal A and calls out update request (UPDATE) message, has wherein carried SDP C ' parameter, and media resource reservation information wherein is that user terminal C has finished resource reservation.
Step 444, user terminal A are returned and are upgraded success response (200 OK message), have wherein carried the SDP parameter (SDP A ') of user terminal A, and media resource reservation information wherein is that user terminal A has been finished resource reservation.
Step 445, group AS sends success response (200 OK) message of calling out update request to user terminal C, has wherein carried the SDP A ' parameter that user terminal A provides.
Step 446, group AS sends access success response (200 OK) message to user terminal C, and it is the response message of call request in the step 411.
Step 447, user terminal C returns access success to group AS and confirms (ACK) message.
Step 448, group AS sends access success response (200 OK) message to user terminal A, and it is the response message of call request in the step 201.
Step 449, user terminal A are returned access success to group AS and are confirmed (ACK) message.
Step 451 is set up conversation between user terminal A and the user terminal C, finish co-group pickup service.
Third embodiment of the invention provides a kind of application server, and the structure of this application server comprises as shown in Figure 5: information acquisition unit 511, recognition unit 512, information process unit 513 and control unit 514.
Above-mentioned recognition unit 512 may further include: coupling subelement and recognin unit.
The coupling subelement, be used for described number information with mate for number information that group business distributed;
The recognin unit is used for finding described number information when described coupling subelement and matches when being used for identifying the characteristic number of co-group pickup service, determines that then call request that described generation answers user terminal is on the same group for answering request.
Above-mentioned information process unit 513 can also be further used for determining call request that described generation answers user terminal when generation is answered request on the same group when described recognition unit that cancellation is to the calling of called user terminal.
Above-mentioned information acquisition unit 511 can also be further used for basis and answer the call request that user terminal sends with the generation that called user terminal is in same application group, obtains for answering the media information that user terminal is supported;
Correspondingly, above-mentioned information process unit 513 is used for that also described generation is answered media information that user terminal supports and offers described call subscriber terminal and carry out media information and consult;
Correspondingly, above-mentioned information acquisition unit 511 also is used to obtain the media information that described call subscriber terminal is supported;
Correspondingly, above-mentioned information process unit 513 is used for that also the media information that described call subscriber terminal is supported is offered described generation and answers user terminal and carry out media information and consult;
Correspondingly, above-mentioned information acquisition unit 511 also is used to obtain described call subscriber terminal and described generation to answer the media negotiation result of user terminal;
Correspondingly, above-mentioned information process unit 513 also is used for answering user terminal for call subscriber terminal and generation described media negotiation result transmission;
Correspondingly, above-mentioned control unit 514 specifically is used for based on call subscriber terminal and for the media negotiation result who answers user terminal, according to described address information, controls described call subscriber terminal and described generation and answers foundation conversation between the user terminal.
Fourth embodiment of the invention provides a kind of application server, and this application server comprises: information acquisition unit, recognition unit, information process unit and control unit.
Described information acquisition unit is used to obtain the address information of described call subscriber terminal, media information and the media resource reservation information that the acquisition call subscriber terminal is supported; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer address information, the described generation that number information that user terminal dials and described generation answer user terminal and answer media information and the media resource reservation information that user terminal is supported.
Recognition unit is used for determining that according to described number information call request that described generation answers user terminal is for generation is answered request on the same group.This recognition unit may further include coupling subelement and recognin unit, and the function of each subelement is identical with associated description among the 3rd embodiment, is not described in detail here.
Information process unit, be used for determining that when described recognition unit call request that described generation answers user terminal is when generation is answered request on the same group, the address information of being answered user terminal described generation offers described call subscriber terminal, the address information of described call subscriber terminal is offered described generation answer user terminal; The media information that is obtained is offered described call subscriber terminal carry out the media information negotiation, the media resource reservation information that is obtained is offered described call subscriber terminal carry out media resource reservation; The media information that is obtained is offered described generation answer user terminal and carry out media information and consult, the media resource reservation information that is obtained is offered described generation answer user terminal and carry out media resource reservation;
Described information acquisition unit, also be used to obtain described call subscriber terminal and described generation answer user terminal media information negotiation result, media resource reservation success the result and reserve successful media resource;
Described information process unit also is used for the result of described media information negotiation result, media resource reservation success and reserves successful media resource, is transferred to described call subscriber terminal and described generation to answer user terminal;
Described control unit, specifically be used for answering the media information negotiation result of user terminal, the result and the successful media resource of reservation of media resource reservation success based on call subscriber terminal and generation, according to described address information, control described call subscriber terminal and described generation and answer foundation conversation between the user terminal.
Fifth embodiment of the invention provides a kind of communication system, and the structure of this communication system comprises as shown in Figure 6: first call conversation control function entity 611, second call conversation control function entity 612 and application server 613.
Described first call conversation control function entity 611 is used for the call request of call subscriber terminal is transmitted to described application server, carries the address information of described call subscriber terminal in the described call request;
Described second call conversation control function entity 612, be used for and answer the call request that user terminal sends with the generation that called user terminal is in same application group, be transmitted to application server, described call request is carried described generation and is answered the address information that number information that user terminal dials and described generation answer user terminal;
Described application server 613 is used for the call request according to call subscriber terminal, obtains the address information of described call subscriber terminal; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer the address information that number information that user terminal dials and described generation answer user terminal; Determine that according to described number information call request that described generation answers user terminal is for generation is answered request on the same group, the address information of then being answered user terminal described generation offers described call subscriber terminal, the address information of described call subscriber terminal is offered described generation answer user terminal; And, control described call subscriber terminal and described generation and answer foundation conversation between the user terminal according to described address information.
The technical scheme that is provided by the invention described above embodiment as can be seen, application server is according to being in the user terminal call request of same application group with user terminal, obtains address information and generation that generation answers user terminal to answer the characteristic number that user terminal is dialed co-group pickup service; Determine that according to described characteristic number request that described generation answers user terminal answers request for generation on the same group, then will offer call subscriber terminal for the address information of answering user terminal; The address information of call subscriber terminal is offered for answering user terminal, and based on above-mentioned address information control user terminal and for answering foundation conversation between the user terminal, thereby can realize co-group pickup service at 3G network, remedy the blank that in based on the 3G network of IMS, realizes co-group pickup service at present.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. a method that realizes co-group pickup service is characterized in that, this method comprises:
Application server obtains the address information of described call subscriber terminal and the media information that described call subscriber terminal is supported according to the call request of call subscriber terminal; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer the number information that user terminal dials, address information and the generation that described generation is answered user terminal and answer the media information that user terminal is supported;
Determining call request that described generation answers user terminal according to described number information when generation is answered request on the same group, cancellation is to the calling of called user terminal; And
Described generation is answered the address information of user terminal, described generation answer media information that user terminal supports and offer described call subscriber terminal and carry out media information and consult, the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported offers described generation and answers user terminal and carry out media information and consult;
Application server obtains described call subscriber terminal and described generation and answers the media negotiation result of user terminal, and answers user terminal for described call subscriber terminal and described generation described media negotiation result transmission; And
Answer the media negotiation result of user terminal based on described call subscriber terminal and described generation,, control described call subscriber terminal and described generation and answer and set up conversation between the user terminal according to described address information.
2. the method for claim 1 is characterized in that, described application server determines that according to described number information call request that described generation answers user terminal answers request for generation on the same group, comprising:
Described application server with described number information with mate for number information that group business distributed, find that described number information matches when being used for identifying the characteristic number of co-group pickup service, in then definite described generation, answered the call request of user terminal for generation is answered request on the same group.
3. method as claimed in claim 2, it is characterized in that, the described characteristic number that is used for identifying co-group pickup service is distributed by operator, and by operator with the characteristic number that it distributed, be notified to user who belongs in the same application group and the application server that application is provided for described application group.
4. the method for claim 1 is characterized in that,
This method also comprises:
Application server is answered the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtains described generation to answer the media resource reservation information of user terminal;
In described generation, answered media information that user terminal supports offer described call subscriber terminal and carry out media information when consulting, comprise that also the media resource reservation information that described generation is answered user terminal offers described call subscriber terminal and carries out media resource reservation;
Obtain the media resource reservation information of described call subscriber terminal; The media information that is obtained is offered described generation answer user terminal and carry out media information when consulting, comprise that also the media resource reservation information that will be obtained offers described generation and answers user terminal and carry out media resource reservation;
Obtain described call subscriber terminal and described generation when answering the media information negotiation result of user terminal, also comprise the result who obtains the media resource reservation success and reserve successful media resource, and the information that is obtained offered described call subscriber terminal and described generation is answered user terminal;
Described according to described address information, control described call subscriber terminal and described generation and answer foundation conversation between the user terminal, comprising:
Answer the media information negotiation result of user terminal, the result and the successful media resource of reservation of media resource reservation success based on described call subscriber terminal and described generation, according to described address information, control described call subscriber terminal and described generation and answer foundation conversation between the user terminal.
5. an application server is characterized in that, this application server comprises:
The information acquisition unit is used for the call request according to call subscriber terminal, obtains the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer address information and the generation that number information that user terminal dials and described generation answer user terminal and answer the media information that user terminal is supported;
Recognition unit is used for determining that according to described number information call request that described generation answers user terminal is for generation is answered request on the same group;
Information process unit is used for determining call request that described generation answers user terminal when generation is answered request on the same group when described recognition unit that cancellation is to the calling of called user terminal; And described generation is answered the address information of user terminal, described generation answer media information that user terminal supports and offer described call subscriber terminal and carry out media information and consult, the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported offers described generation and answers user terminal and carry out media information and consult;
Control unit is used to obtain described call subscriber terminal and described generation to answer the media negotiation result of user terminal, and answers user terminal for described call subscriber terminal and described generation described media negotiation result transmission; And answer the media negotiation result of user terminal based on described call subscriber terminal and described generation, according to described address information, control described call subscriber terminal and described generation and answer and set up conversation between the user terminal.
6. application server as claimed in claim 5 is characterized in that, described recognition unit comprises:
The coupling subelement, be used for described number information with mate for number information that group business distributed;
The recognin unit is used for finding described number information when described coupling subelement and matches when being used for identifying the characteristic number of co-group pickup service, determines that then call request that described generation answers user terminal is on the same group for answering request.
7. application server as claimed in claim 5 is characterized in that,
Described information acquisition unit also is used for answering the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtains described generation to answer the media resource reservation information of user terminal;
Described information process unit, the media information that also is used for being obtained offer described call subscriber terminal and carry out media information when consulting, and the media resource reservation information that is obtained is offered described call subscriber terminal carry out media resource reservation;
Described information acquisition unit also is used to obtain the media resource reservation information of call subscriber terminal;
Described information process unit, the media information that also is used for being obtained offer described generation and answer user terminal and carry out media information when consulting, and the media resource reservation information that is obtained is offered described generation answer user terminal and carry out media resource reservation;
Described information acquisition unit, also be used to obtain described call subscriber terminal and described generation answer user terminal the media resource reservation success the result and reserve successful media resource;
Described information process unit also is used for the result of media resource reservation success and reserves successful media resource, is transferred to described call subscriber terminal and described generation to answer user terminal;
Described control unit, specifically be used for answering the media information negotiation result of user terminal, the result and the successful media resource of reservation of media resource reservation success based on call subscriber terminal and generation, according to described address information, control described call subscriber terminal and described generation and answer foundation conversation between the user terminal.
8. a communication system is characterized in that, this communication system comprises:
First call conversation control function entity, second call conversation control function entity and application server;
Described first call conversation control function entity is used for the call request of call subscriber terminal is transmitted to described application server, carries the address information of described call subscriber terminal in the described call request;
Described second call conversation control function entity, be used for and answer the call request that user terminal sends with the generation that called user terminal is in same application group, be transmitted to application server, described call request is carried described generation and is answered the address information that number information that user terminal dials and described generation answer user terminal;
Described application server is used for the call request according to call subscriber terminal, obtains the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported; Answer the call request that user terminal sends according to the generation that is in same application group with called user terminal, obtain described generation to answer address information and the generation that number information that user terminal dials and described generation answer user terminal and answer the media information that user terminal is supported; Determine call request that described generation answers user terminal when generation is answered request on the same group at described number information, cancellation is to the calling of called user terminal; And described generation is answered the address information of user terminal, described generation answer media information that user terminal supports and offer described call subscriber terminal and carry out media information and consult, the media information that the address information of described call subscriber terminal, described call subscriber terminal are supported offers described generation and answers user terminal and carry out media information and consult; And obtain described call subscriber terminal and described generation and answer the media negotiation result of user terminal, and answer user terminal for described call subscriber terminal and described generation described media negotiation result transmission; And answer the media negotiation result of user terminal based on described call subscriber terminal and described generation, according to described address information, control described call subscriber terminal and described generation and answer and set up conversation between the user terminal.
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| CN2008100570847A CN101232649B (en) | 2008-01-29 | 2008-01-29 | Communication system, application server and method for implementing same group answer replacing business |
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| CN2008100570847A CN101232649B (en) | 2008-01-29 | 2008-01-29 | Communication system, application server and method for implementing same group answer replacing business |
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| CN101778363B (en) * | 2010-01-22 | 2014-06-11 | 中兴通讯股份有限公司 | Implementation method of co-group pickup and communication system |
| CN102843784B (en) * | 2012-08-13 | 2015-06-03 | 小米科技有限责任公司 | Call access method, equipment and system |
| CN106550157B (en) * | 2015-09-19 | 2021-06-15 | 深圳市潮流网络技术有限公司 | Method for realizing visual pickup service |
| CN106921949A (en) * | 2015-12-24 | 2017-07-04 | 北京奇虎科技有限公司 | The method and apparatus that a kind of batch is dialed number |
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