CN101087248A - Method for originating carrier establishment based on network side of session service - Google Patents
Method for originating carrier establishment based on network side of session service Download PDFInfo
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- CN101087248A CN101087248A CNA2006100939049A CN200610093904A CN101087248A CN 101087248 A CN101087248 A CN 101087248A CN A2006100939049 A CNA2006100939049 A CN A2006100939049A CN 200610093904 A CN200610093904 A CN 200610093904A CN 101087248 A CN101087248 A CN 101087248A
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Abstract
The invention discloses a method for building load on network based on dialog service, and the network adds a logical net element BDF with loading deciding ability; when user initiates dialog service, build the dialog information via signaling, and the relative dialog and service information are sent to said BDF; the BDF decides the network to initiate the building of service loading according to the control method for said service, and the decision of building loading is sent to net element which is used to build requirement for loading. The invention realizes the building or strategy modification on network for dialog service.
Description
Technical field
The present invention relates to a kind of method of initiating to carry foundation, belong to the packet domain field in the mobile communication technology, the network side that relates in particular to a kind of dialogue-based business is initiated the method that carrying is set up.
Background technology
As shown in Figure 1, be PCC (based on the QoS control and the charging of strategy) system architecture schematic diagram.PCC binds the data flow and the resource of being distributed of business by policy mechanism, implementation strategy on data gateway, and QoS controls and the application of charging regulation thereby finish.Main network element among the figure comprises:
PCRF (Policy and Charging Rule Function, strategy and charging rule functions): for the business that the user inserted is formulated resource and charging policy; Also refer to the network element of finishing the PCRF function herein with PCRF.
PCEF (Policy and Charging Enforcement Function, policy enforcement function): carry out function, in the gateway of user's face, finish resource control and charging usually from the strategy of PCRF; Also refer to the network element of finishing the PCRF function herein with PCRF.
AF:(Application Function, application function): be in the application server in the service network, the network element of business information function perhaps is provided for carrying in the IMS network, as: P-CSCF.
SPR (Subscription Profile Repository, CAMEL-Subscription-Information storehouse): the CAMEL-Subscription-Information storehouse that customer service is relevant.
The PCC correlation technique has been finished basic method and the flow process that resource requirement and charging regulation were consulted and distributed to policy mechanism of passing through up till now.Mainly comprise: policy conferring, decision and execution when the carrying that terminal is initiated is set up, the modification of strategy, and the strategy cancellation the during release of carrying.These flow processs can be handled the tactical management of the carrying of the relevant and irrelevant two types of business of session of session.Its shortcoming is that these flow processs are to be triggered by the carrying request of setting up that UE initiates, or PCEF triggers, or the change of user signing contract information is triggered, for PCRF, it is the request that strategy was set up, revises, stopped in passive acceptance, formulates or stop corresponding strategy again according to business information.
For the foundation how network side initiates to carry, up to the present do not have any disclosed solution.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of network side of dialogue-based business to initiate to carry the method for setting up, to realize being initiated by network side the flow process of carrying foundation or strategy modification.
1, for solving the problems of the technologies described above, the network side that the invention provides a kind of dialogue-based business is initiated the method that carrying is set up, and at first sets up a logical ne BDF with carrying deciding ability at network side; When user's initiation session business, when setting up session information by signaling bear, relevant session and business information are sent to described BDF; Whether this BDF (comprises controlled according to this Operation Network to this professional control mode then, conditions such as professional needed service quality), decision is initiated the foundation of the carrying of this business of realization by network side, and the decision of this foundation carrying is sent to the network element of the responsible initiation carrying foundation request of network side as indication.
Described logical ne with carrying deciding ability can be integrated in the strategy and charging rule functions network element PCRF of network side.When user's initiation session business, set up session information by signaling bear, and relevant session and business information are sent to after the policing rule function network element PCRF by application function network element AF, PCRF is according to type of service and the operator resource policy that distributes of type of service for this reason, it is needed quality of service conditions, can determine to initiate the foundation of the carrying of this business of realization by network side, and the responsible initiation carrying that this decision sends to network side set up the network element of request, be responsible for the network element of session management as signaling plane, perhaps user's face is responsible for the network element of strategy execution etc.
In addition, PCRF can notify the terminal carrying to be set up by network side by session signaling after the decision network side is initiated carrying foundation.
If user's face is responsible for the establishment carrying indication that the network element PCEF of strategy execution receives PCRF, and the PCC rule of formulating for this carrying, can create bearer context information and implementation strategy binding by PCEF, and will carry and set up solicited message and send successively, and set up to policing rule function network element PCRF response carrying and to finish message to the user's veil unit and the terminal of terminal direction.
The present invention judges by network being wanted loaded service carry out strategy, whether decision initiates the modification of new bearer foundation or original carrying policing rule by network side, with the triggering network element that PCRF sets up as the carrying of network initiation, realized that at session service initiating carrying by network side sets up or strategy modification.
Description of drawings
Fig. 1 is about the schematic diagram of PCC framework in the prior art;
Fig. 2 is the carrying establishing method flow chart of initiating according to the described network side of first embodiment of the invention;
Fig. 3 is the carrying establishing method flow chart of initiating according to the described network side of second embodiment of the invention;
Fig. 4 is the network diagram in the System Architecture Evolution of future generation (SAE);
Fig. 5 is the carrying establishing method flow chart of initiating according to the described network side of third embodiment of the invention.
Embodiment
Solve the problem of the foundation of how being initiated to carry by network side, what at first will consider is that the network element of how trigger network side is initiated carrying and set up.
Therefore, we can set up one at network side and have carrying and set up the logical ne BDF (Bearer Decision Function) of arbitration functions.When user's initiation session business, set up after the session information link by signaling bear and network element (as AF) with application function, AF sends to this with relevant session and business information and has the logical ne BDF that arbitration functions is set up in carrying.This network element can be connected with AF and the network element (as the GW on certain user's face path) that can initiate the carrying request of setting up, and be connected with user's service contracting database, class of service and the signatory situation that to ask according to session of BDF like this takes all factors into consideration that decision is whether professional for this reason sets up a new carrying.Whether this network element can be stored user's beared information, adopt existing carrying to transmit the business of request with decision.
BDF can be integrated in the prior network device, embeds the logical functional entity that the back forms a new integral body.Consider that in the framework of PCC needed strategy is closely related during the setting up of PCRF and carrying, and also can perceive the type of service that all can be controlled, therefore, can consider BDF is embedded among the PCRF, the triggering network element that the carrying of initiating as network is set up.Certainly, can according to actual needs BDF be embedded in other conventional network equipment, the present invention does not limit this yet.
But need easily for describing, the PCRF that reaches described in the following examples of the present invention is meant the PCRF that is integrated with BDF.
For non-session service (irrelevant with AF), PCRF can only obtain business information from PCEF, and promptly PCEF had obtained business information before PCRF, and therefore this moment, PCRF can not do triggering.
For session service (relevant with AF), PCRF obtains business information and sets up carrying needed information (as IP address, port numbers etc.) from AF, therefore can judge and initiate the foundation of carrying.
Based on above-mentioned analysis, trigger at network side on the specific implementation of carrying foundation, should comprise following feature:
1, PCRF do carrying foundation judgement is used for the relevant business of session (AF is relevant) with trigger method;
2, need definition to come the creating a mechanism of carrying of the conversation-based business that the trigger network side initiates by perception by PCRF to the session information of session service and type of service;
3, need definition to initiate the flow process that conversation-based carrying is set up to end side, merged tactful distribution and execution in this flow process from strategy execution network elements.
Below in conjunction with accompanying drawing, to the embodiments of the invention explanation of knowing clearly.
Method and flow process that first embodiment: PCRF sets up by the mode triggering session service bearer of indication.
This flow process is suitable for the relevant data service carrying of session (or claiming user plane bearer) to be set up, and a precondition is to have existed to be used for the mutual carrying of session signaling.When the user initiates new session service, at first set up session information by signaling bear, AF sends to PCRF with relevant session and business information.This step is a prior art.PCRF is according to the required QoS condition of business, and the operation strategy simultaneously may be with reference to the signatory situation of user, and whether decision initiates new carrying.The used IP address of new bearer in the present embodiment is identical with the IP address of the already present carrying that is used for session signaling.
Carrying is set up flow process as shown in Figure 2:
(1) AF receives the demand signalling that need set up session connection, has carried session information and business information in the request.AF for user's current business finds corresponding PCRF, to the request that PCRF is sent as this service authorization resource, carries service related information according to IP address in the information or configuration information etc. in the authorization message.This step is a prior art.
(2) after PCRF receives authorization requests information, search the context that PCRF goes up this user according to the business information of carrying (as IP address), under situation about not finding, need to create this user's related context information, and be kept at the context for the professional policy information of formulating from user signing contract information and the operator that SPR obtains.This step is a prior art.
(3) PCRF is according to CAMEL-Subscription-Information and the current tunnel information of user, and the business that will ask, and PCRF judges whether still to select a certain current carrying to realize this business into the newly-built carrying of user realizes this business.Under the situation that is not having carrying, will make decision and set up carrying for the user.
(4) PCRF will determine form by an indication to be included in and return to AF in the message, and this indication is used to notify terminal, and the carrying of this business is initiated to set up from network side.This step is the improvement of prior art, promptly needs to change the parameter in the message, i.e. the host-host protocol that expansion is correlated with, and terminal is wanted to discern this indication simultaneously.The change part is a content of the present invention.
(5) PCRF sends to PCEF with Indication message by the Gx interface.Carried session information (comprising the IP address, port numbers etc.) in the message.This step is a content of the present invention.
(6) PCEF is according to the content creating bearer context information in the Indication message.This step is a content of the present invention.
(7) PCEF sends strategy request message to PCRF.This step is a prior art.
(8) strategy of PCRF formulation sends to PCEF.This step is a prior art.
(9) PCEF implementation strategy binding, this step is a prior art.
(10) if Online Charging System (OCS) is available, then PCEF obtains credit to OCS.
(11) PCEF will carry and set up solicited message and send successively to the user's veil unit and the terminal of terminal direction.Comprised the needed information of establishment context in the request message, as bearing identification, user ID etc.The network element address that is sent can be found in the context record of the signaling bear of having set up.This step is a content of the present invention.
(12) PCEF will receive to carry to set up and finish message.May comprise bearing identification and user ID, information such as station address in the message.This step is a content of the present invention.
(13) PCEF responds to set up to PCRF and finishes message.May comprise bearing identification and user ID, information such as station address in the message.This step is a content of the present invention.
Annotate: in the 4th step of flow process, also can be placed on final step and carry out afterwards.At this moment carrying has been set up and has been finished.PCRF can send to bearing identification AF and then take back to terminal, passes through this carrying transport service to inform terminal.
The method that second embodiment: PCRF sets up by strategic decision-making triggering session service bearer.
This flow process is suitable for the relevant data service carrying of session (or claiming user plane bearer) to be set up, and a precondition is to have existed to be used for the mutual carrying of session signaling.When the user initiates new session service, at first set up session information by signaling bear, AF sends to PCRF with relevant session and business information.This step is a prior art.PCRF simultaneously may be with reference to the signatory situation of user according to the required QoS condition of business, and whether decision initiates new carrying.The used IP address of new bearer in the present embodiment is identical with the IP address of the already present carrying that is used for session signaling.
The difference of present embodiment and embodiment one is in this example that PCRF will carry indication and policing rule and put together and once issue PCEF, has reduced the Signalling exchange of PCRF and PCEF.But to expand the Gx interface accordingly.
Carrying is set up flow process as shown in Figure 3:
(1) AF receives the demand signalling that need set up session connection, has carried session information and business information in the request.AF for user's current business finds corresponding PCRF, to the request that PCRF is sent as this service authorization resource, carries service related information according to IP address in the information or configuration information etc. in the authorization message.This step is a prior art.
(2) after PCRF receives authorization requests information, search the context that PCRF goes up this user according to the business information of carrying (as IP address), under situation about not finding, need to create this user's related context information, and be kept at the context for the professional policy information of formulating from user signing contract information and the operator that SPR obtains.This step is a prior art.
(3) PCRF is according to CAMEL-Subscription-Information and the current tunnel information of user, and the business that will ask, and PCRF judges whether still to select a certain current carrying to realize this business into the newly-built carrying of user realizes this business.Under the situation that is not having carrying, will make decision and set up carrying for the user.Formulate the PCC rule according to existing business information for this carrying simultaneously.Carrying is set up part correlation partly for content of the present invention in this step, and PCC rule part is a prior art.
(4) PCRF will determine form by an indication to be included in and return to AF in the message, and this indication is used to notify terminal, and the carrying of this business is initiated to set up from network side.This step is the improvement of prior art, promptly needs to change the parameter in the message, i.e. the host-host protocol that expansion is correlated with, and terminal is wanted to discern this indication simultaneously.The change part is a content of the present invention.
(5) PCRF will carry the indication and the PCC rule send to PCEF by the Gx interface.Carried the indication carrying in the message and set up, set up needed session information (comprising the IP address, port numbers etc.), and set up the policing rule of being formulated for this carrying.Policing rule partly is a prior art in this step, and newly-increased carrying indication and session information are content of the present invention.
(6) if Online Charging System (OCS) is available, then PCEF obtains credit according to user profile to OCS.
(7) PCEF finishes the binding of strategy simultaneously according to the content creating bearer context information in the Indication message.This step is a content of the present invention.
(8) PCEF will carry and set up solicited message and send successively to the user's veil unit and the terminal of terminal direction.Comprised the needed information of establishment context in the request message, as Tunnel Identifier, user ID etc.The network element address that is sent can be found in the context record of the signaling bear of having set up.This step is a content of the present invention.
(9) PCEF will receive to carry to set up and finish message.May comprise bearing identification and user ID, information such as station address in the message.This step is a content of the present invention.
(10) PCEF finishes message to PCRF response foundation and binding.May comprise bearing identification and user ID, information such as station address in the message.Binding in this step is finished and is that it is summary of the invention that prior art, newly-increased foundation are finished the content of message.
Annotate: in the 4th step of flow process, also can be placed on final step and carry out afterwards.At this moment carrying has been set up and has been finished.PCRF can send to bearing identification AF and then take back to terminal, passes through this carrying transport service to inform terminal.
Method and flow process that the 3rd embodiment: PCRF sets up by the mode triggering session service bearer of indication signaling veil unit.
Present embodiment is a background with SAE framework and flow process.The SAE framework as shown in Figure 4, the MME among the MME/UPE is responsible for the mobile management of signaling plane and the logical functional entity of session management.IASA is responsible for the gateway that the user face data circulation is sent out and transmitted, and has the function of PCEF.AF is in Op among this figure, in the IP Serv part.
With reference to figure 5, present embodiment is that with the different of first embodiment PCRF has indicated the signaling plane network element of responsible session management to initiate carrying foundation request (refer step 5, step 6) in this example, when asking PCEF, PCEF is again to PCRF request PCC rule (refer step 7).Other are similar with first embodiment.
Claims (16)
1, a kind of network side of dialogue-based business is initiated the method that carrying is set up, and it is characterized in that, comprising:
Set up a logical ne BDF at network side with carrying deciding ability;
When user's initiation session business, when setting up session information by signaling bear, relevant session and business information are sent to described BDF;
This BDF to this professional control mode, determines to be initiated by network side the foundation of the carrying of this business of realization according to Operation Network, and the decision of this foundation carrying is sent to the network element of the responsible initiation carrying foundation request of network side as indication.
2, the method for claim 1 is characterized in that, described logical ne with carrying deciding ability can be integrated in the strategy and charging rule functions network element PCRF of network side.
3, the method for claim 1, it is characterized in that, the described step that relevant session and business information are sent to described BDF is by application function network element AF relevant session and business information to be sent to described logical ne with carrying deciding ability.
4, the method for claim 1, it is characterized in that, described relevant session and business information are sent to described step with logical ne of carrying deciding ability, be relevant session and business information to be sent to strategy and charging rule functions network element PCRF, send to described logical ne by described PCRF again with carrying deciding ability by application function network element AF.
5, method as claimed in claim 2, it is characterized in that, further comprise: the described PCRF that is integrated with this network element with carrying deciding ability will carry the decision notice terminal of being set up by network side by session signaling after the decision network side is initiated carrying foundation.
6, the method for claim 1, it is characterized in that, the network element that request is set up in the responsible initiation carrying of described network side comprises that user's face is responsible for the network element PCEF of strategy execution, wherein when this PCEF receives the establishment carrying indication of described PCRF, further obtain the PCC rule of this carrying from PCRF, create bearer context information and implementation strategy binding by PCEF, solicited message is set up in carrying sent successively, and finish message to described PCRF response carrying foundation to the user's veil unit and the terminal of terminal direction.
7, the method of claim 1, it is characterized in that, the network element that request is set up in the responsible initiation carrying of described network side comprises that signaling plane is responsible for the network element of session management, wherein after network element that this signaling plane is responsible for session management receives the establishment carrying indication of described PCRF, the network element PCEF that is responsible for strategy execution to user's face initiates carrying foundation request, described PCEF further obtains the PCC rule of this carrying from PCRF, create bearer context information and implementation strategy binding by PCEF, solicited message is set up in carrying sent successively, and finish message to described PCRF response carrying foundation to the user's veil unit and the terminal of terminal direction.
8, the method for claim 1 is characterized in that, described should the needed quality of service conditions of business, according to type of service and operator for this reason the resource policy that distributes of type of service determine.
9, method as claimed in claim 2 is characterized in that, described decision is comprised by the step of the foundation of the carrying of this business of network side initiation realization:
According to CAMEL-Subscription-Information and the current tunnel information of user, and the business that will ask, described this PCRF with network element of carrying deciding ability that is integrated with judges and determines whether be that the newly-built carrying of user realizes this business, still select a certain current carrying to realize this business, wherein, under the situation that does not have carrying, will determine newly to set up a carrying for the user.
10, method as claimed in claim 6, it is characterized in that, when described PCEF receives the establishment carrying indication of PCRF, further obtain the step of the PCC rule of this carrying from PCRF, be described carrying indication to be put together with the PCC rule, once send to PCEF by PCRF.
11, method as claimed in claim 6, it is characterized in that, when described PCEF receives the establishment carrying indication of PCRF, further obtain the step of the PCC rule of this carrying from PCRF, at first send rule request by PCEF, by PCRF the described PCC rule of formulating for this carrying is sent to PCEF then to PCRF.
12, method as claimed in claim 5 is characterized in that, the described PCRF that is integrated with this network element with carrying deciding ability will carry the step that terminal is notified in the decision of being set up by network side by session signaling, comprise:
PCRF will determine the form by an indication to be included in and return to AF in the message, and this indication is used to notify terminal, and the carrying of this business is initiated to set up from network side.
13, method as claimed in claim 5 is characterized in that, the described PCRF that is integrated with this network element with carrying deciding ability will carry the step that terminal is notified in the decision of being set up by network side by session signaling, comprise:
The foundation that PCRF will receive is finished the bearing identification that carries in the response message and is sent to AF, and and then take back to terminal, pass through this carrying transport service to inform terminal.
14, as claim 6 or 7 described methods, it is characterized in that, further comprise:
If Online Charging System OCS can use, then PCEF obtains credit according to user profile to OCS.
15, the method for claim 1, it is characterized in that, the described network element that this has the carrying deciding ability can and can be initiated the network element that carrying foundation asks with application function network element AF and is connected, and be connected with user's service contracting database, class of service and the signatory situation that to ask according to session of BDF like this takes all factors into consideration that decision is whether professional for this reason sets up a new carrying.
16, the method for claim 1 is characterized in that, whether described BDF network element storage user's beared information adopts existing carrying to transmit the business of request with decision.
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| CN102340889B (en) * | 2010-07-26 | 2016-12-14 | 中兴通讯股份有限公司 | A kind of network side initiates the method and system that IMS signaling bear is set up |
| CN102790755A (en) * | 2011-05-20 | 2012-11-21 | 中兴通讯股份有限公司 | Processing method and device for dynamic business flow |
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| CN105723797A (en) * | 2014-10-17 | 2016-06-29 | 联发科技股份有限公司 | Method for maintenance of maximum number of bearers when maximum number of bearers reached |
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