CN101141693A - Method of discovering and processing network determination user busy when the called users access the circuit field - Google Patents
Method of discovering and processing network determination user busy when the called users access the circuit field Download PDFInfo
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- CN101141693A CN101141693A CNA2007101642068A CN200710164206A CN101141693A CN 101141693 A CN101141693 A CN 101141693A CN A2007101642068 A CNA2007101642068 A CN A2007101642068A CN 200710164206 A CN200710164206 A CN 200710164206A CN 101141693 A CN101141693 A CN 101141693A
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Abstract
The present invention discloses a method which can discover and process the network deciding the busyness of a user when a called party is accessed at a circuit domain. The method is used in the IP multimedia subsystem concentrated service controlling field. The method comprises that firstly, the S-CSCF of the home network of the called party receives a conversation request message of a calling party side, sends the conversation request message of a calling party side to the TAS to process, then retransmits the processed message to the ICCF; secondly, the ICCF receives the conversation request message, to detects the UE state of the called party which is accessed at the telephone domain, if the UE is in the busy state of the user which is decided by the network, the ICCF returns a user busyness response to the TAS through the S-CSCF; thirdly, the TAS receives the user busyness response, and triggers the relevant service. The present invention estimates the network deciding the busyness of the user on a network element of the ICCF, smartly processes the problem that the TAS processes the service of the network deciding the busyness of the user is unreasonable, when the CS domain of the ICS user access, and achieves a better IMS concentrated service controlling.
Description
Technical field
The present invention relates to IMS (IP Multimedia Core Network Subsystem in the communication, IP (Internet Protocol, network interconnection agreement) centralized traffic control field IP multimedia subsystem, IMS), relate in particular to a kind of called in circuit (Circuit Switch is called for short CS) discovery and processing method of Network Determined User Busy when the territory is inserted.
Background technology
IMS is by third generation partner program (3rd Generation Partnership Project, abbreviation 3GPP) a kind of IP-based network framework that proposes, it has made up an opening and service environment flexibly, supports multimedia application, and provides abundant multimedia service for the user.
IMS is based on the communication network framework of IP, irrelevant with access technology, except being GPRS (General Packet Radio Service, GPRS), WLAN (Wireless LocalArea Network, WLAN (wireless local area network)) grouping exchange (Packet Switch such as, abbreviation PS) access network provides outside the business, can also be GSM (Global System for Mobile communications, global system for mobile communications), UMTS mobile cellular networks such as (Universal Mobile Telecommunications System, unified mobile communcations systems) provides professional.
Mobile cellular network such as GSM, UMTS adopts circuit-switched technology, is called circuit (CircuitSwitch is called for short CS) territory, can provide basic speech business for the user, and based on the supplementary service of speech business.When IMS was inserted in the CS territory, it developed into a kind of access way, and business provides by IMS is unified fully, and this technology is called IMS centralized traffic (IMS Centralized Service is called for short ICS).
ICS has the following advantages:
(1) IMS provides consistent business for access waies such as circuit domain, packet domain, and network enabled merges;
(2) support the CS network to the evolution of IMS network;
(3) not only support to have ICS ability subscriber equipment, also support the existing subscriber equipment that does not possess the ICS ability.
As shown in Figure 1, ICS application scenarios session path schematic diagram, comprising following network element:
101, User Equipment, user terminal is called for short UE;
102, the CS domain network element comprises all network elements in traditional C territory, also is included as to realize that the IMS centralized traffic is at network element that CS adds or the traditional C domain network element after the upgrading;
103, IMS CS Control Function, IMS circuit domain control function network element is called for short ICCF;
104, Serving Call Session Control Function, the service call conversation control function network element is called for short S-CSCF;
105, Telecom Application Server, telecommunication application server is called for short TAS;
ICS becomes the CS territory into a kind of access passage, makes UE101 be linked into ICCF103 by CS domain network element 102, replaces UE101 to insert the IMS territory by ICCF103.
TAS105 is a telecommunication application server among the IMS, and the basic service of conventional telecommunications realizes in TAS.
Busy User Determined User Busy and the two kinds of situations of Network Determined User Busy of being divided into of user.After User Determined User Busy is meant the called user terminal ring, busy according to the user that the personal inclination initiatively initiates by the called subscriber.Network Determined User Busy is meant called user terminal just in session, and other users make a call to this user, and network finds that the user is busy.
Fig. 2 is when called ICS user inserts the IMS network in the CS territory in the prior art, the schematic flow sheet that changes before realizing behind the Network Determined User Busy.
Step 201, called UE is conversed;
Step 202, the S-CSCF of called network side receives the conversation request message of calling UE, and S-CSCF sends to TAS according to initial filter standard or norm with the conversation request message of calling UE;
Step 203, TAS finds that called UE is busy, according to called UE data-triggered called UE busy forward shifting business among the TAS.
In the prior art, the finding and handle of ICS user's Network Determined User Busy by TAS.But for ICS user, these existing problems.ICS user can insert in the IMS territory, also can insert in the CS territory.These two territories may be different to the definition of Network Determined User Busy, and a plurality of session services may be supported in the IMS territory, and the session of an activation is often only supported in the CS territory.Because TAS does not have user's input field information, insert for ICS user's CS territory this moment, and it is irrational handling the Network Determined User Busy business by TAS.
Summary of the invention
The invention provides a kind of called when circuit domain inserts the discovery and the processing method of Network Determined User Busy, insert to solve for ICS user's CS territory, handle the professional irrational problem of Network Determined User Busy by TAS.
In order to solve the problems of the technologies described above, the invention provides a kind of called when circuit domain inserts the discovery and the processing method of Network Determined User Busy, be applied to IP Multimedia System centralized traffic control field, this method comprises the steps:
(1) after the service call conversation control function network element S-CSCF of called home network receives the conversation request message of Calling Side, handles to telecommunication application server TAS this forwards, be transmitted to IP Multimedia System circuit domain control function network element ICCF again;
(2) after described ICCF receives described conversation request message, the called user terminal UE state that inserts in the phone territory is detected, be in the Network Determined User Busy state as this UE, then described ICCF returns the busy response of user through described S-CSCF to described TAS;
(3) after described TAS receives the busy response of described user, trigger corresponding service.
The method of the invention, wherein, described called UE is in the Network Determined User Busy state and is meant, called UE is being set up or carried out session, and signatory priority higher and and the business of Network Determined User Busy conflict, otherwise think that called UE is in not busy condition.
Further, the whether signatory priority of described called UE higher and and the business information of Network Determined User Busy conflict be that described ICCF is known when called UE is carried out network registry.
Further, in the step (2), as described ICCF judge described called UE contracted priority higher and and the business of Network Determined User Busy conflict, then enter the corresponding service flow process.
The method of the invention, wherein, described called carrying out during the session, priority higher and and the business of Network Determined User Busy conflict comprise call waiting.
The method of the invention, wherein, if called UE is in idle condition, then described ICCF sends to circuit domain by S-CSCF, MGCF network element MGCF successively and calls out.
The method of the invention, wherein, in the step (1), described S-CSCF is transmitted to TAS according to initial filter standard or norm with described conversation request message.
The method of the invention, wherein, in the step (1), described S-CSCF is transmitted to ICCF according to initial filter standard or norm with described conversation request message.
The method of the invention, wherein, in the step (3), described corresponding service is busy forward shifting or user's playback.
The present invention judges Network Determined User Busy by on the ICCF network element, when having handled ICS user's CS territory access IMS network neatly, handles the professional irrational problem of Network Determined User Busy by TAS, has realized better IMS centralized traffic control.
Description of drawings
Fig. 1 is an ICS application scenarios session path schematic diagram;
Fig. 2 is when called ICS user inserts the IMS network in the CS territory in the prior art, the schematic flow sheet that changes before realizing behind the Network Determined User Busy;
Fig. 3 is when to be the called ICS user of the embodiment of the invention in the CS territory insert the IMS network, the discovery of Network Determined User Busy and the flow chart of processing.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in detail.
Among the present invention, send to the S-CSCF of callee side when conversation request from Calling Side after, S-CSCF according to initial filter standard or norm with called request through TAS, and then the session request sent to ICCF.Behind the last discovery of the ICCF Network Determined User Busy, ICCF will send the busy message of user to TAS, implement corresponding subsequent treatment by TAS.
As shown in Figure 3, when to be the called ICS user of present embodiment in the CS territory inserted the IMS network, the discovery of Network Determined User Busy and the detailed process of processing may further comprise the steps:
Step 300, called UE in registration process, its network side ICCF know called UE whether contracted priority higher and and the business (as call waiting) of Network Determined User Busy conflict;
Step 301, called UE are just carried out in the session in the CS territory;
Step 302, the S-CSCF of callee side sends to TAS according to initial filter standard or norm with the SIP conversation request message after receiving the SIP of calling UE (Session InitiationProtocol, conversation initialized protocol) conversation request message;
Step 303 after the TAS treatment S IP conversation request, is transmitted to S-CSCF;
Step 304, S-CSCF is transmitted to ICCF according to follow-up initial filter standard or norm with the SIP conversation request;
Step 305, after ICCF receives, whether the state that detects called UE is that Network Determined User Busy: ICCF judges that called UE is in the Network Determined User Busy state and is meant, called UE is being set up or is being carried out session, and signatory priority higher and and the business (as call waiting) of Network Determined User Busy conflict, otherwise think that called UE is in not busy condition (if the user is in not busy condition, then ICCF passes through S-CSCF, MGCF (Media Gateway Control Function, MGCF) send to call out to the CS territory) if ICCF judge called UE contracted priority higher and and the business of Network Determined User Busy conflict, then enter the corresponding business flow process; Present embodiment just carries out in the session in the CS territory owing to called UE, so decision network decision user is busy;
Step 306, ICCF is after decision network decision user is busy, and ICCF sends the busy message of sip user to TAS, and this message arrives TAS via S-CSCF;
Step 307, TAS triggers corresponding service after receiving the busy message of described sip user, as busy forward shifting, user's playback etc.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (9)
- One kind called when circuit domain inserts the discovery and the processing method of Network Determined User Busy, be applied to IP Multimedia System centralized traffic control field, this method comprises the steps:(1) after the service call conversation control function network element S-CSCF of called home network receives the conversation request message of Calling Side, handles to telecommunication application server TAS this forwards, be transmitted to IP Multimedia System circuit domain control function network element ICCF again;(2) after described ICCF receives described conversation request message, the called user terminal UE state that inserts in the phone territory is detected, be in the Network Determined User Busy state as this UE, then described ICCF returns the busy response of user through described S-CSCF to described TAS;(3) after described TAS receives the busy response of described user, trigger corresponding service.
- 2. method according to claim 1, it is characterized in that described called UE is in the Network Determined User Busy state and is meant, called UE is being set up or is being carried out session, and signatory priority higher and and the business of Network Determined User Busy conflict, otherwise think that called UE is in not busy condition.
- 3. as method as described in the claim 2, it is characterized in that, described called UE whether signatory priority higher and and the business information of Network Determined User Busy conflict be that described ICCF is known when called UE is carried out network registry.
- 4. method as claimed in claim 1 or 2 is characterized in that, in the step (2), as described ICCF judge described called UE contracted priority higher and and the business of Network Determined User Busy conflict, then enter the corresponding service flow process.
- 5. as method as described in the claim 2, it is characterized in that, described called carrying out during the session, priority higher and and the business of Network Determined User Busy conflict comprise call waiting.
- 6. as method as described in the claim 2, it is characterized in that if called UE is in idle condition, then described ICCF sends to circuit domain by S-CSCF, MGCF network element MGCF successively and calls out.
- 7. method according to claim 1 is characterized in that in the step (1), described S-CSCF is transmitted to TAS according to initial filter standard or norm with described conversation request message.
- 8. method according to claim 1 is characterized in that in the step (1), described S-CSCF is transmitted to ICCF according to initial filter standard or norm with described conversation request message.
- 9. method according to claim 1 is characterized in that in the step (3), described corresponding service is busy forward shifting or user's playback.
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| CN2007101642068A CN101141693B (en) | 2007-09-30 | 2007-09-30 | Method of discovering and processing network determination user busy when the called users access the circuit field |
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| CN2007101642068A CN101141693B (en) | 2007-09-30 | 2007-09-30 | Method of discovering and processing network determination user busy when the called users access the circuit field |
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| CN101141693B CN101141693B (en) | 2011-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621826B (en) * | 2009-08-10 | 2012-01-04 | 杭州诚智天扬科技有限公司 | Method for judging and differentiating user busy state through testing calling |
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| US7830868B2 (en) * | 2006-02-06 | 2010-11-09 | Research In Motion Limited | System and method for effecutating a SIP call in a network environment including IMS |
| KR100933121B1 (en) * | 2006-01-23 | 2009-12-21 | 삼성전자주식회사 | Method and apparatus for processing CIS terminal call request of IMS terminal including real time service through IMS domain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101621826B (en) * | 2009-08-10 | 2012-01-04 | 杭州诚智天扬科技有限公司 | Method for judging and differentiating user busy state through testing calling |
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