CN101304323B - Method for implementing centralization of explicit call diverting service in IP multimedia subsystem - Google Patents
Method for implementing centralization of explicit call diverting service in IP multimedia subsystem Download PDFInfo
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- CN101304323B CN101304323B CN2007100973326A CN200710097332A CN101304323B CN 101304323 B CN101304323 B CN 101304323B CN 2007100973326 A CN2007100973326 A CN 2007100973326A CN 200710097332 A CN200710097332 A CN 200710097332A CN 101304323 B CN101304323 B CN 101304323B
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Abstract
The invention discloses a centralized implementation method used for displaying call forwarding services in IP multimedia subsystems; when conversation is carried on among the user equipments, the displaying call forwarding of multi-conversations is controlled by the application server AS of the user equipment provided with the centralized displaying call forwarding services or call session control function CSCF entity or business agency server of the service; wherein, the user equipment which is provided with the displaying call forwarding services is called users equipment B which is one of the initial user equipment of the initial conversation. The method of the invention solves the problems of the centralized allocation of displaying call forwarding service and avoids the phenomenon that all the equipments involved in the conversation must be provided with the same service when the users hope to realize call forwarding among a plurality of the equipments for random times.
Description
Technical field
The present invention relates to the communications field, more specifically relate to the centralization implementation method of explicit call diverting service in a kind of IP (Internet Protocol, network interconnection agreement) IP multimedia subsystem, IMS.
Background technology
IP Multimedia System IMS (IP Multimedia Core Network Subsystem) is a kind of IP-based network framework that is proposed by third generation partner program 3GPP (3rd Generation Partnership Project), made up one opening and service environment flexibly, support multimedia application, can provide abundant multimedia service for the user.
In the IMS business system, key-course separates with operation layer, and key-course does not provide concrete business, and functions such as necessary triggering, route, charging only are provided to operation layer.Professional triggering and controlled function are CSCF CSCF (Call Session Control Function in the key-course, be divided into and act on behalf of Proxy, inquiry Interrogating, with three types of service Serving, that wherein take the main responsibility is Serving, the Interrogating type is optional) entity finishes, and operation layer is made up of a series of application server AS (Application Server), and concrete business service can be provided.The key-course of session (S-CSCF) calls the business on the AS according to user's professional triggering of CAMEL-Subscription-Information control, realizes business function.End-to-end equipment in the session is called user equipment (UE) (User Equipment), is responsible for mutual with the user.These functional entitys use SIP SIP (Session Initiation Protocol) to carry out communication.
Explicit call diverting service is a kind of business among the IMS, and this business allows the user to set up in the process in session foundation back or session, participates in decision by the user, and session is transferred on other equipment.This business relates to the three parts, comprises two sides (the wherein professional side that back disengaging session takes place is called transfer party) and the third party side of diverting the aim that are setting up session before business takes place or setting up session.Business can be that transfer party is initiated, and also can be the initiation that diverts the aim.
Represent that in order to simplify flow process outstanding actual business control function body has all omitted the CSCF entity and do not participated in this professional AS entity in all flow charts, these entities are the just simple message of transmitting in this business.
In the technology of existing realization explicit call diverting service, when user's session when an equipment is transferred on another equipment, professional control has also been transferred on the new equipment, the session that to shift is shifted again again if desired, or continue to transfer to again on other equipment, then must in the business configuration of new equipment, do corresponding configuration, though seem this actual be the continuity of session on distinct device.When the user wishes to realize that the session of arbitrary number of times is shifted on several equipment, must the equipment that might participate in all disposed identical services.This makes that in the call display transfer process repeatedly takes place professional controlling party can change along with transfer, rather than all the time by the controlling party control of shifting for the first time.
Summary of the invention
The technical problem that will solve of the present invention just provides the centralization implementation method of explicit call diverting service in a kind of IP Multimedia System, solve the problem of the centralized configuration of explicit call diverting service, avoid when the user wishes to realize that the session of arbitrary number of times is shifted on several equipment, must the equipment that might participate in all disposed identical services.
In order to solve the problems of the technologies described above, the invention provides the centralization implementation method of explicit call diverting service in a kind of IP Multimedia System, when carrying out session between the subscriber equipment, shift by the application server AS of the subscriber equipment that has disposed the explicit call diverting service of concentrating or CSCF CSCF entity or service agent server controls session call display repeatedly that should business;
Wherein, the subscriber equipment that has disposed the explicit call diverting service of concentrating is called subscriber equipment B, and this subscriber equipment B is one of subscriber equipment of conversation start first.
Further, the subscriber equipment of described conversation start first comprises beginning during session, the subscriber equipment in conference call, the perhaps subscriber equipment set up of session.
Further, when session is transferred to other subscriber equipment and is got on, the relevant information of new session under the application server AS of described subscriber equipment B or CSCF entity or the service agent server record.
Further, when session is transferred to other subscriber equipment and is got on, for non-situation, divert the aim by the application server AS of the subscriber equipment that has disposed the explicit call diverting service of concentrating or CSCF CSCF functional entity notice and to wish the transfer that centralized control is follow-up at the session of original transfer party subscriber equipment B end based on the service agent server.
Further, when session need be from a subscriber equipment, the subscriber equipment that is called transfer party, transfer to miscellaneous equipment, the subscriber equipment that is called the side of diverting the aim, when getting on, by the subscriber equipment of the side of diverting the aim to subscriber equipment B, or the service agent server of subscriber equipment B or application server AS or CSCF entity transmission transfer request, or the transfer request of the subscriber equipment of transfer party is without revising the network of ground by way of subscriber equipment B.
Further, when transfer request arrives or by way of AS or the CSCF entity of subscriber equipment B, or transfer request is when arriving the service agent server of subscriber equipment B, the transfer service that whether allows to carry out requirement by the AS of subscriber equipment B or CSCF entity or the decision of service agent server, and be responsible for session is shifted on request.
Further, by the AS of subscriber equipment B or CSCF entity or service agent server finish session transferred to the subscriber equipment of the side of diverting the aim from the subscriber equipment of transfer party after, the session of the subscriber equipment of end or hang-up and transfer party.
Among the present invention, when the user wished to realize the session transfer of arbitrary number of times on several equipment, professional controlling party can not change along with transfer, all the time by the controlling party control of shifting for the first time, need not the equipment that might participate in all dispose identical services, simple to operate, the efficient height.
Description of drawings
Fig. 1 is the flow chart that shifts application example again that diverts the aim and initiate of the present invention.
The flow chart that shifts application example again that Fig. 2 initiates for transfer party of the present invention.
Fig. 3 is the flow chart that shifts application example again based on service agent of the present invention.
Embodiment
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
Suppose that this session relates to subscriber equipment A, B, C, D, wherein subscriber equipment B has disposed the explicit call diverting service of concentrating, and subscriber equipment C and subscriber equipment D are the transferable equipment that subscriber equipment B allows, session is original to be occurred between subscriber equipment A and subscriber equipment B, through explicit transfer service once, session is transferred between subscriber equipment A and subscriber equipment C, and primary transfer is by application server AS or the control of CSCF CSCF entity of subscriber equipment B.
Present embodiment mainly may further comprise the steps:
(1) beginning session, the subscriber equipment of this conversation start is subscriber equipment A, B, promptly session is set up between A and B, or A is just calling out B;
(2) session A-B is translated into A-C (session is set up between A and C), for non-situation based on service agent, the transfer that the network of (UE-C) wishes that centralized control is follow-up that diverts the aim of the AS of transfer party in the transfer process (UE-B) or CSCF functional entity notice at the session of original transfer party (UE-B) end.The application server AS of UE-B or CSCF entity or service agent are noted the relevant information of new session;
(3) when needs are transferred to session on the subscriber equipment D or shift reuse family equipment B, the subscriber equipment D of the side of diverting the aim or B are to original transfer party subscriber equipment B, or its service agent, application server AS or CSCF entity send transfer request, need inform original transfer party address, the i.e. address of UE-B for back three kinds of situations; Or the transfer request of the subscriber equipment C of transfer party is revised without the functional entity in the network C and by way of the network of subscriber equipment B: when the user need continue session transferred to subscriber equipment D and go up, send transfer request by subscriber equipment D to the service agent of subscriber equipment B or subscriber equipment B, perhaps, the transfer request of subscriber equipment C is without revising the network of ground by way of subscriber equipment B; When the user need continue that session shifted reuse family equipment B, send transfer request by subscriber equipment B to the service agent of subscriber equipment B or subscriber equipment B, perhaps, the transfer request of subscriber equipment C is without the network of revising ground approach subscriber equipment B;
(4) finish the foundation of A-D/B session and the session of end/hang-up subscriber equipment C by the AS of subscriber equipment B or CSCF entity or service agent.
From implementation step as can be seen, business for same subscriber equipment (as subscriber equipment B), the other end of original session (as subscriber equipment A) can be all the time in session after repeatedly shifting, unless the explicit call diverting service of a subscriber equipment A has taken place, but this does not influence the explicit call diverting service that subscriber equipment B proceeds to concentrate therebetween.Otherwise the explicit call diverting service of subscriber equipment B can not influence the explicit call diverting service that subscriber equipment A proceeds to concentrate yet.
As shown in Figure 1, be based on diverting the aim of AS and initiate the message flow chart of the concentrated explicit call diverting service of transfer again, described after the session between subscriber equipment A (UE-A) and the subscriber equipment B (UE-B) is transferred between subscriber equipment A and the subscriber equipment C (UE-C), session is continued to transfer to process between subscriber equipment A and subscriber equipment D (UE-D) or subscriber equipment A and the subscriber equipment B, and subscriber equipment D or subscriber equipment B are for diverting the aim.Comprise the steps:
Step 101 is carried out session between UE-A and UE-C, this session is shifted by session between original A-B;
Step 102, UE-D/UE-B request AS-B continues original A-B session to shift and comes, and for example uses INVITE request in the Session Initiation Protocol to be initiated to the calling of UE-B;
Step 103, request message arrives AS-B, and AS-B judges whether UE-D/UE-B authorizes transferable original session at the UE-B end, if authorize, then execution in step 104;
Step 104 is acted on behalf of UE-D/UE-B by AS-B and is used the more new technological process of standard to upgrade the session that UE-A holds;
Step 105, AS-B replys the request of UE-D/UE-B, and carries the centralized traffic sign, such as identifying in the P-Service-Indication territory;
Step 106 finally realizes the A-D/B session.AS-B learns that original session at UE-B end seized or be transferred to UE-C before this by UE-C, and after then session was set up, AS-B can stop/hang up the session that equipment C holds.
As shown in Figure 2, be after another kind of mode is implemented in session between subscriber equipment A and the subscriber equipment B and is transferred between subscriber equipment A and the subscriber equipment C, session is continued to transfer to process between subscriber equipment A and subscriber equipment D or subscriber equipment A and the subscriber equipment B, and subscriber equipment D or subscriber equipment B are for diverting the aim.Comprise the steps:
Step 201, carry out session between UE-A and UE-C, this session is shifted by session between original A-B, the network of AS-B notice C wishes to carry out centralized control when shifting session first, such as in the INVITE of calling out UE-C, carrying service identification in the transfer process, or when replying first transfer request, carrying service identification, service identification can be identified in the P-Service-Indication territory;
Step 202, the UE-C request continues to be transferred to UE-D/UE-B with original A-B session, such as send the REFER request to UE-A;
Step 203, request is the explicit call diverting service of concentrating through AS-C because of AS-C is known, so select not participate in control, directly transmits message;
Step 204, AS-C transmits transfer request and gives UE-A;
Step 205, request message are by way of AS-B, and AS-B judges whether UE-D/UE-B authorizes transferable original session at the UE-B end, if authorize, then execution in step 206;
Step 206 uses the more new technological process of standard to upgrade the session of UE-A end by AS-B;
Step 207, AS-B calls out UE-D/UE-B, such as the transmission INVITE, and carries the centralized traffic sign, such as identifying in the P-Service-Indication territory;
Step 208 finally realizes the A-D/B session.AS-B learns and was originally seized or be transferred to UE-C by UE-C before the session of UE-B end that after then session was set up, AS-B can stop/hang up the session that equipment C holds.
As shown in Figure 3, be based on the message flow chart of the concentrated explicit call diverting service that shifts again of service agent, after the session between device A and the equipment B is transferred between device A and the equipment C, the user uses equipment D/B that session is continued to transfer between device A and equipment D or A equipment and the equipment B, and equipment D/B is for diverting the aim.Comprise the steps:
Step 301 is carried out session between UE-A and UE-C, this session is shifted by session between original A-B, and the service agent server of UE-B has write down the information of new session in the transfer process in signaling link;
Step 302, UE-D/UE-B request continue original A-B session to shift comes, and for example uses INVITE request in the Session Initiation Protocol to be initiated to the calling of the service agent of UE-B, and the information of having carried destination-address (UE-B) in the calling is such as in the To territory;
Step 303, request message arrives the service agent of UE-B, and the service agent of UE-B judges whether UE-D/UE-B authorizes transferable original session at the UE-B end, if authorize, then execution in step 304;
Step 304 uses the more new technological process of standard to upgrade the session of UE-A end by the service agent of UE-B;
Step 305, the service agent of UE-B is replied the request of UE-D/UE-B, and portability centralized traffic sign is such as identifying in the P-Service-Indication territory;
Step 306 finally realizes the A-D/B session.The service agent of UE-B learns and was originally seized or be transferred to UE-C by UE-C before the session of UE-B end that after then session was set up, the service agent of UE-B can stop/hang up the session that equipment C holds.
Based on CSCF entity session branch mode, similar with above-mentioned session branch mode based on AS and service agent, no longer describe in detail herein.
Claims (5)
1. the centralization implementation method of explicit call diverting service in the IP Multimedia System is characterized in that,
When carrying out session between the subscriber equipment, shift by the application server AS of the subscriber equipment that has disposed the explicit call diverting service of concentrating or CSCF CSCF entity or service agent server controls session call display repeatedly that should business;
When needs with session when a subscriber equipment is transferred to other subscriber equipment and is got on, by the subscriber equipment of the side of diverting the aim to the subscriber equipment that has disposed the explicit call diverting service of concentrating, or disposed the service agent server of subscriber equipment of the show Calls transfer service of concentrating or application server AS or CSCF entity and send transfer request, or the transfer request of the subscriber equipment of transfer party is without revising the network of ground by way of the subscriber equipment that has disposed the explicit call diverting service of concentrating;
In the process that shifts, for non-situation based on the service agent server, the network that is diverted the aim by the application server AS or the CSCF CSCF functional entity notice of the subscriber equipment that has disposed the explicit call diverting service of concentrating is wished the transfer at the session of original transfer party that centralized control is follow-up;
Wherein, the subscriber equipment that has disposed the explicit call diverting service of concentrating is called subscriber equipment B, and this subscriber equipment B is one of subscriber equipment of conversation start first.
2. method according to claim 1 is characterized in that, the subscriber equipment of described conversation start first comprises beginning during session, the subscriber equipment in conference call, the perhaps subscriber equipment set up of session.
3. method according to claim 1 is characterized in that, when session is transferred to other subscriber equipment and is got on, and the relevant information of new session under the application server AS of described subscriber equipment B or CSCF entity or the service agent server record.
4. according to any described method in the claim 1～3, it is characterized in that, when transfer request arrives or by way of AS or the CSCF entity of subscriber equipment B, or transfer request is when arriving the service agent server of subscriber equipment B, the transfer service that whether allows to carry out requirement by the AS of subscriber equipment B or CSCF entity or the decision of service agent server, and be responsible for session is shifted on request.
5. according to any described method in the claim 1～3, it is characterized in that, by the AS of subscriber equipment B or CSCF entity or service agent server finish session transferred to the subscriber equipment of the side of diverting the aim from the subscriber equipment of transfer party after, the session of the subscriber equipment of end or hang-up and transfer party.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100973326A CN101304323B (en) | 2007-05-08 | 2007-05-08 | Method for implementing centralization of explicit call diverting service in IP multimedia subsystem |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100973326A CN101304323B (en) | 2007-05-08 | 2007-05-08 | Method for implementing centralization of explicit call diverting service in IP multimedia subsystem |
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| CN101304323A CN101304323A (en) | 2008-11-12 |
| CN101304323B true CN101304323B (en) | 2011-01-19 |
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| CN2007100973326A Expired - Fee Related CN101304323B (en) | 2007-05-08 | 2007-05-08 | Method for implementing centralization of explicit call diverting service in IP multimedia subsystem |
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| CN105898088A (en) * | 2016-06-28 | 2016-08-24 | 乐视控股（北京）有限公司 | Call forwarding method and first user equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411225A (en) * | 2001-09-29 | 2003-04-16 | 华为技术有限公司 | Realizing method of calling forwarding |
| EP1592266A2 (en) * | 2004-04-29 | 2005-11-02 | DB Telematik GmbH | Method for onward switching of a call in a digital switching network |
| CN1882020A (en) * | 2006-01-18 | 2006-12-20 | 华为技术有限公司 | Method and system for delivering user terminal number in ECT service |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411225A (en) * | 2001-09-29 | 2003-04-16 | 华为技术有限公司 | Realizing method of calling forwarding |
| EP1592266A2 (en) * | 2004-04-29 | 2005-11-02 | DB Telematik GmbH | Method for onward switching of a call in a digital switching network |
| CN1882020A (en) * | 2006-01-18 | 2006-12-20 | 华为技术有限公司 | Method and system for delivering user terminal number in ECT service |
Non-Patent Citations (4)
| Title |
|---|
| ETSI.Explicit Call Transfer (ECT).ETSI TS 124 091 V6.0.0 Digital cellular telecommunications system (Phase 2+) * |
| Explicit Call Transfer (ECT) Supplementary Service * |
| Stage 3.2004,6-9. * |
| Universal Mobile Telecommunications System (UMTS) * |
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| CN101304323A (en) | 2008-11-12 |
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Effective date of registration: 20171025 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: Guangdong Gaohang Intellectual Property Operation Co., Ltd. Address before: 518057 Nanshan District high tech Industrial Park, Guangdong, South Road, science and technology, ZTE building, legal department Patentee before: ZTE Corporation |
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Inventor after: Wang Yufen Inventor before: Xie Zhenhua Inventor before: Fang Wei |
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Effective date of registration: 20171102 Address after: 065000, No. 12, No. 1 North Road, Corelle District, Langfang District, Xianghe, Hebei Patentee after: Wang Yufen Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: Guangdong Gaohang Intellectual Property Operation Co., Ltd. |
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Granted publication date: 20110119 Termination date: 20180508 |